Imported Upstream version 1.12.0upstream/1.12.0

Change-Id: I6a571bddd24d1cb7d64b74bc66e878ccba2ce638

113 files changed, 5568 insertions, 1482 deletions

diff --git a/AUTHORS b/AUTHORS
index 5723966..af29ec8 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -2,9 +2,13 @@ c-ares is based on ares, and these are the people that have worked on it since
 the fork was made:
 
 Albert Chin
+Alex Loukissas
+Alexander Klauer
 Alexander Lazic
 Alexey Simak
 Andreas Rieke
+Andrew Andkjar
+Andrew Ayer
 Andrew C. Morrow
 Ashish Sharma
 Ben Greear
@@ -13,6 +17,7 @@ BogDan Vatra
 Brad House
 Brad Spencer
 Bram Matthys
+Chris Araman
 Dan Fandrich
 Daniel Johnson
 Daniel Stenberg
@@ -23,11 +28,16 @@ Dima Tisnek
 Dirk Manske
 Dominick Meglio
 Doug Goldstein
+Doug Kwan
 Duncan Wilcox
 Eino Tuominen
 Erik Kline
+Fedor Indutny
+Frederic Germain
+Geert Uytterhoeven
 George Neill
 Gisle Vanem
+Gregor Jasny
 Guenter Knauf
 Guilherme Balena Versiani
 Gunter Knauf
@@ -35,25 +45,38 @@ Henrik Stoerner
 Jakub Hrozek
 James Bursa
 Jérémy Lal
+Keith Shaw
+Lei Shi
 Marko Kreen
 Michael Wallner
 Mike Crowe
 Nick Alcock
 Nick Mathewson
+Nicolas "Pixel" Noble
+Ning Dong
+Oleg Pudeyev
+Patrick Valsecchi
 Patrik Thunstrom
+Paul Saab
 Peter Pentchev
 Phil Blundell
 Poul Thomas Lomholt
 Ravi Pratap
 Robin Cornelius
+Saúl Ibarra Corretgé
 Sebastian at basti79.de
 Shmulik Regev
 Stefan Bühler
 Steinar H. Gunderson
+Svante Karlsson
 Tofu Linden
 Tom Hughes
 Tor Arntsen
+Viktor Szakats
 Vlad Dinulescu
 William Ahern
 Yang Tse
+hpopescu at ixiacom.com
 liren at vivisimo.com
+nordsturm
+saghul
diff --git a/CHANGES b/CHANGES
index 4d912d6..93e6a43 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,356 @@
    Changelog for the c-ares project. Generated with git2changes.pl
 
+Version 1.12.0 (29 Sep 2016)
+
+Daniel Stenberg (29 Sep 2016)
+- RELEASE-NOTES: 1.12.0
+
+- [David Drysdale brought this change]
+
+  ares-test-misc: test ares_create_query with escaped trailing dot
+
+- ares_create_query: avoid single-byte buffer overwrite
+  
+  ... when the name ends with an escaped dot.
+  
+  CVE-2016-5180
+  
+  Bug: https://c-ares.haxx.se/adv_20160929.html
+
+- ares_library_initialized.3: added
+
+- make: bump CARES_VERSION_INFO for release
+
+David Drysdale (29 Sep 2016)
+- man: update ares_init_options.3
+
+Daniel Stenberg (29 Sep 2016)
+- ares_library_init.3: corrected the ares_library_init_mem proto
+
+- README.md: remove space from link
+
+- README: link to the correct c-ares badge!
+  
+  Reported-by: David Hotham
+  
+  Fixes #63
+
+- docs: minor formatting edits
+
+- ares_destroy.3: formatting polish
+
+- ares_init.3: split the init docs into two separate man pages
+
+- SECURITY: point to the vulnerabilities page now
+
+- RELEASE-NOTES: synced with daa7235b1a5
+
+- ares_create_query.3: edit language
+  
+  Tried to make the man page more readable.
+
+David Drysdale (26 Sep 2016)
+- test: fix gMock to work with gcc >= 6.x
+  
+  Taken from:
+  https://github.com/google/googletest/issues/705#issuecomment-235067917
+
+Daniel Stenberg (26 Sep 2016)
+- [Brad House brought this change]
+
+  headers: remove checks for and defines of variable sizes
+  
+  ... they're not really used and by avoiding them in the ares_build.h
+  output we make the public header less dependent on data sizes.
+
+David Drysdale (24 Sep 2016)
+- api: add ARES_OPT_NOROTATE optmask value
+  
+  Fix up a couple of problems with configuring whether c-ares rotates
+  between different name servers between requests.
+  
+  Firstly, ares_save_options() returns (in *optmask) the value of
+  (channel->optmask & ARES_OPT_ROTATE), which doesn't necessarily
+  indicate whether the channel is or is not actually doing rotation.
+  This can be confusing/incorrect if:
+   - the channel was originally configured without ARES_OPT_ROTATE
+     (so it appears that the channel is not rotating)
+   - the /etc/resolv.conf file includes the 'rotate' option
+     (so the channel is actually performing rotation).
+  
+  Secondly, it is not possible to reliably configure a channel
+  to not-rotate; leaving off ARES_OPT_ROTATE is not enough, since
+  a 'rotate' option in /etc/resolv.conf will turn it on again.
+  
+  Therefore:
+   - add an ARES_OPT_NOROTATE optmask value to allow explicit
+     configuration of no-rotate behaviour
+   - in ares_save_options(), report the value of channel->rotate
+     as exactly one of (optmask & ARES_OPT_ROTATE) or
+     (optmask & ARES_OPT_NOROTATE).
+  
+  In terms of back-compatibility:
+   - existing apps that set ARES_OPT_ROTATE will continue to rotate,
+     and to have ARES_OPT_ROTATE reported back from ares_save_options()
+   - existing apps that don't set ARES_OPT_ROTATE will continue to
+     use local config/defaults to decide whether to rotate, and will
+     now get ARES_OPT_ROTATE or ARES_OPT_NOROTATE reported back from
+     ares_save_options() rather than 0.
+
+- ares_init_options: only propagate init failures from options
+  
+  Commit 46bb820be3a8 ("ares_init_options: don't lose init failure")
+  changed init behaviour so that earlier errors in initialization
+  weren't lost.  In particular, if the user passes in specific
+  options but they are not applied (e.g. because of an allocation
+  failure), that failure needs to be reported back to the user; this
+  also applies when duplicating a channel with ares_dup().
+  
+  However, other initialization failures can be ignored and
+  overridden -- in particular, if init_by_resolv_conf() or
+  init_by_environment() fail, then falling back to default values
+  is OK.
+  
+  So only preserve failures from the init_by_options() stage, not
+  from all initialization stages.
+  
+  Fixes issue 60.
+
+- test: Force reinstall of libtool on OSX
+  
+  Travis build environment appears to have changed.
+
+- test: Add valgrind build variant
+
+- test: Add null pointer to gtest args
+  
+  GoogleTest assumes that there is a null pointer in argv[argc],
+  so make it look like that. Without this change, tests run with
+  command-line arguments get memory errors under valgrind/ASAN.
+
+Daniel Stenberg (21 Aug 2016)
+- AUTHOR: maybe gitgub isn't really an author =)
+
+- AUTHORS: added contributors from the git log
+
+- LICENSE.md: add a stand-alone license file
+  
+  Just the MIT license used in the top the source files moved out to a
+  stand-alone file for easier reference and discovery.
+
+- README: added "CII best practices" badge
+
+- SECURITY.md: suggested "security process" for the project
+
+David Drysdale (17 Aug 2016)
+- test: Add Clang static analysis build to Travis
+  
+  Run scan-build over the library source code, but skip the
+  tests.  Needs a later Clang install in Travis
+
+- test: more info on how to run fuzz testing
+
+- test: make fuzzer driver code C not C++
+
+- test: fuzzer mode for AFL's persistent mode
+  
+  When fuzzing with AFL, if the LLVM-based instrumentation is
+  used (via the afl-clang-fast wrapper), then it is possible to
+  have a single execution of the fuzzer program iterate multiple
+  times over the fuzzing entrypoint (similar to libFuzzer's normal
+  mode of execution) with different data.  This is much (e.g. 10x)
+  faster.
+  
+  Add code to support this, by checking whether __AFL_LOOP is
+  defined at compile-time.
+  
+  Also, shift the code to effectively be C rather than C++.
+
+- test: simplify deps for fuzzer entrypoint
+  
+  No need to depend on the rest of the test code (ares-test.h) for
+  the fuzzer entrypoint; this makes the entrypoint slightly simpler
+  to build with LLVM's libFuzzer.
+  
+  Also shift the code to effectively be C rather than C++
+
+- test: disable MinGW tests
+  
+  The test binary built in the MinGW build is failing for some
+  reason.  It works for me when I build locally, so I'm guessing
+  it's down to some sort of AppVeyor environment issue.
+  
+  Disable for now.
+
+Daniel Stenberg (16 Aug 2016)
+- read_tcp_data: remove superfluous NULL check
+  
+  CID 56884 by Coverity. The pointer is already derefenced before this
+  point so it can't be NULL here anyway.
+
+- web: http => https
+
+GitHub (20 Jul 2016)
+- [David Drysdale brought this change]
+
+  Merge pull request #59 from fuze/master
+  
+  Update msvc_ver.inc for VS2015 Update 3
+
+- [Chris Araman brought this change]
+
+  Update msvc_ver.inc
+  
+  support Visual Studio 2015 Update 3
+
+David Drysdale (2 May 2016)
+- Fix trailing comment for #endif
+
+Daniel Stenberg (30 Apr 2016)
+- email: use Gisle's "new" address
+
+David Drysdale (18 Apr 2016)
+- test: drop superfluous fuzz inputs
+  
+  Where there are multiple fuzz input files that only differ in
+  the first two bytes (the query ID), just keep the first such
+  file.
+
+svante karlsson (15 Apr 2016)
+- Update msvc_ver.inc
+  
+  support Visual Studio 2015 Update 2
+
+David Drysdale (31 Mar 2016)
+- test: Run fuzzcheck.sh in Travis build
+
+- test: add fuzzing check script to tests
+  
+  Add a test script that runs the fuzzing command over the
+  corpus of DNS packets.  This doesn't actually do any fuzzing
+  (it just runs them as inputs without generating any variations)
+  but it does ensure that the fuzzing entrypoint is still working.
+
+- test: allow multiple files in aresfuzz command line
+  
+  If no arguments are specified, use stdin as input.
+  Otherwise treat each argument as a filename and feed
+  its contents to the fuzz entrypoint.
+
+- test: Add corpus of DNS packets
+  
+  For fuzz testing it is useful to start from a corpus of valid
+  packets, so fill out the test/fuzzinput/ directory with a bunch
+  of inputs.
+  
+  These packets were generated by temporarily modifying the c-ares
+  process_answer() function to save off any incoming response messages.
+
+- test: Add utility to show DNS packet from file
+
+- [nordsturm brought this change]
+
+  Fix nsort initialization
+  
+  Author: Alexander Drachevskiy
+  http://c-ares.haxx.se/mail/c-ares-archive-2014-07/0004.shtml
+  http://c-ares.haxx.se/mail/c-ares-archive-2014-07/0014.shtml
+
+- test: Check setting nsort=0 option is respected
+
+- test: Update fuzzing function prototype
+  
+  libFuzzer changed expected return type from void to int
+  in LLVM 3.8.
+
+- Explicitly clear struct servent before use
+  
+  On a build where MSAN has been manually set up (which involves
+  using an MSAN-instrumented version of the standard C++ library, see
+  https://github.com/google/sanitizers/wiki/MemorySanitizerLibcxxHowTo)
+  there's a warning about use of uninitialized memory here.  It
+  might be a false positive, but the fix is trivial so include it.
+
+- test: for AF_UNSPEC, return CNAME only for AAAA, but valid A record
+  
+  Also shuffle expected responses rsp6/rsp4 into the order they will occur.
+
+- [Chris Araman brought this change]
+
+  msvc_ver.inc: support Visual Studio 2015 Update 1
+
+- build: commonize MSVC version detection
+  
+  Remove the need to copy/paste version number mapping between
+  Makefile.msvc and test/Makefile.msvc.
+
+- test: Use different name in live test
+
+- test: Only pass unused args to GoogleTest
+
+- ahost.c: add cast to fix C++ compile
+  
+  If ahost.c is force-compiled as C++ the missing cast from
+  (void *) to (char **) is problematic.
+
+- ares_library_cleanup: reset ares_realloc too
+  
+  Otherwise a subsequent use of the library might use a previous
+  incarnation's realloc() implementation.
+
+Daniel Stenberg (9 Mar 2016)
+- [Brad House brought this change]
+
+  configure: check if tests can get built before enabled
+  
+  The current approach for disabling tests is not a good solution because
+  it forces you to pass --disable-tests, rather than auto-detect if your
+  system can support the tests in the first place.  Many (most?) systems
+  do not have C++11.  This also causes issues when chain-building c-ares,
+  the hosting system needs to be updated to support passing this
+  additional flag if necessary, it doesn't seem reasonable to add this
+  requirement which breaks compatibility.
+  
+  This change auto-detects if the system can build the tests and
+  automatically disable them if it cannot.  If you pass --enable-tests to
+  configure and the system cannot build them either due to lack of system
+  support, or because cross-compilation is being used, it will throw an
+  appropriate error since the user indicated they really did want the
+  tests.
+
+David Drysdale (3 Mar 2016)
+- [Viktor Szakats brought this change]
+
+  Makefile.m32: add support for CROSSPREFIX
+
+- [Viktor Szakats brought this change]
+
+  Makefile.m32: add support for extra flags
+  
+  Allow specification of CARES_{LD,C}FLAG_EXTRAS envvars
+  for mingw
+
+- test: Build with MinGW on AppVeyor
+
+- test: avoid in6addr_* constants
+  
+  These aren't available on MinGW, so use explicit addresses instead.
+
+- test: add missing #includes for dns-proto.cc
+
+- [Gregor Jasny brought this change]
+
+  Fix man page typos detected by Lintian
+
+Daniel Stenberg (19 Feb 2016)
+- configure: acknowledge --disable-tests
+  
+  Fixes #44
+
+- AUTHORS: added contributors from the 1.11.0 release
+
+- bump: start working on the next version
+
 Version 1.11.0 (19 Feb 2016)
 
 Daniel Stenberg (19 Feb 2016)
@@ -3615,232 +3966,3 @@ Yang Tse (4 Aug 2008)
   that other package's underquoted m4 function definitions have on ours.
 
 - Add a 3 argument check for getprotobyname_r
-
-- move reentrant.m4 to the m4 subdirectory to avoid infinite loop inclusion problem
-
-- add checks for strtok_r and getprotobyname_r
-
-- Another step towards detecting if _REENTRANT is already defined or actually
-  needed, and being able to define it if appropriate for further configure tests
-  as well as for the generated config file.
-  
-  Introduced reentrant.m4 intended for our reentrant related autotools/m4 macros.
-
-- reorder argument number detection for getservbyport_r to
-  actually verify if the test is properly working
-
-- Make sure that configure process tests are done with the same _REENTRANT
-  setting as the one actually used when finally building the library.
-
-- Change recvfrom's sixth argument data type to the 'historically standard' 'int'
-  data type for systems where this sixth argument is prototyped as a void pointer.
-  
-  Start of thread: http://curl.haxx.se/mail/lib-2008-07/0153.html
-
-- use prototypes to improve getservbyport_r detection
-
-- Adjust recvfrom's sixth arg data type definition for NetWare (LIBC)
-
-- Use the sreadfrom() wrapper to replace recvfrom() in our code.
-
-- when recvfrom prototype uses a void pointer for arguments 2, 5 or 6 this will
-  now cause the definition of RECVFROM_TYPE_ARG2_IS_VOID, RECVFROM_TYPE_ARG5_IS_VOID
-  or RECVFROM_TYPE_ARG6_IS_VOID, as appropriate.
-
-- Adjust DEC/Compaq C compiler settings
-
-- Added "pointer to void" as another data type to check for the sixth argument of
-  function recvfrom as a result of the info additionally logged when running on a
-  Solaris system.
-  
-  The compiler error showed that the prototype being used on Solaris was the one
-  declared in line 427 of "/usr/include/sys/socket.h" as:
-  
-  function(int,
-           pointer to void,
-           unsigned int,
-           int,
-           pointer to struct sockaddr,
-           pointer to void) returning int
-
-- Adjust DEC/Compaq C compiler settings
-
-- RECVFROM_TYPE_ARG2, RECVFROM_TYPE_ARG5 and RECVFROM_TYPE_ARG6 are now defined
-  to the data type pointed by its respective argument and not the pointer type.
-
-- Configure process now checks availability of recvfrom() socket function and
-  finds out its return type and the types of its arguments. Added definitions
-  for non-configure systems config files, and introduced macro sreadfrom which
-  will be used on udp sockets as a recvfrom() wrapper.
-
-- Initial DEC/Compaq C compiler detection and flags
-
-- Improved configure detection of number of arguments for getservbyport_r
-
-- Allow --enable-largefile and --disable-largefile configurations.
-  Configure process no longer needs nor checks size of curl_off_t.
-  Library will now be built with _REENTRANT symbol defined.
-
-- fix compiler warning
-
-- since Jun 30 2008 MAXHOSTNAMELEN define is no longer used
-
-- fix c-ares version reported in generated libcares.pc file when building
-  from CVS tree.
-
-- egrep and ar are also mandatory
-
-Daniel Stenberg (3 Jul 2008)
-- just to clarify that c-ares actually have some ipv6 support
-
-- ares_gethostbyname() fallback from AAA to A records with CNAME present
-
-- - Phil Blundell: If you ask ares_gethostbyname() to do an AF_INET6 lookup and
-    the target host has only A records, it automatically falls back to an
-    AF_INET lookup and gives you the A results.  However, if the target host has
-    a CNAME record, this behaviour is defeated since the original query does
-    return some data even though ares_parse_aaa_reply() doesn't consider it
-    relevant. Here's a small patch to make it behave the same with and without
-    the CNAME.
-
-Yang Tse (2 Jul 2008)
-- The configure process will now halt when sed or grep are unavailable
-
-- fallback to gettimeofday when monotonic clock is unavailable at run-time
-
-- IBM C/C++ compiler predefined macro check
-
-- set earlier in configure process IBM compilers optimization flags
-
-- make check message wording more precise
-
-Daniel Stenberg (30 Jun 2008)
-- - As was pointed out to me by Andreas Schuldei, the MAXHOSTNAMELEN define is
-    not posix or anything and thus c-ares failed to build on hurd (and possibly
-    elsewhere). The define was also somewhat artificially used in the windows
-    port. Now, I instead rewrote the use of gethostbyname to enlarge the host
-    name buffer in case of need and totally avoid the use of the MAXHOSTNAMELEN
-    define. I thus also removed the defien from the namser.h file where it was
-    once added for the windows build.
-  
-    I also fixed init_by_defaults() function to not leak memory in case if
-    error.
-
-Yang Tse (29 Jun 2008)
-- fix C style comment
-
-- John Lightsey filed bug report #1999181: "CLOCK_MONOTONIC always fails on
-  some systems" (http://curl.haxx.se/bug/view.cgi?id=1999181). The problem was
-  that the configure script did not use the _POSIX_MONOTONIC_CLOCK feature test
-  macro when checking monotonic clock availability. This is now fixed and the
-  monotonic clock will not be used unless the feature test macro is defined
-  with a value greater than zero indicating always supported.
-
-- Modified configuration script to actually verify if the compiler is good
-  enough at detecting compilation errors or at least it has been properly
-  configured to do so. Configuration heavily depends on this capability, so
-  if this compiler sanity check fails the configuration process will now fail.
-
-- No longer break out of a shell "for" statement from inside
-  AC_FOO_IFELSE macros, otherwise temp files are not removed.
-  
-  Identation adjustment.
-
-Gunter Knauf (11 Jun 2008)
-- enable additional CFLAGS from commandline.
-
-Yang Tse (9 Jun 2008)
-- fix pkg-config reporting of private libraries needed for static linking
-
-- MSVC does build Windows native targets
-
-- Brad House fixed a missing header file inclusion in adig sample program
-
-Daniel Stenberg (29 May 2008)
-- start working on 1.5.3
-
-Version 1.5.2 (29 May 2008)
-
-Daniel Stenberg (29 May 2008)
-- 1.5.2
-
-Yang Tse (26 May 2008)
-- fix compiler warning: unreferenced formal parameter
-
-Daniel Stenberg (23 May 2008)
-- list all local sources the (demo) tools need, add a few missing scripts to
-  the dist tarball and remove a two duplicate file names from EXTRA_DIST
-  (most of it pointed out by Yang Tse)
-
-- this is not used (anymore)
-
-- make sure the configure.ac file with the correct version number is shipped
-  in the tarball
-
-Yang Tse (22 May 2008)
-- MSVC6+ clean-up targets must also remove acountry.exe
-
-- sync with reality
-
-- fix: [action-if-found] part of AC_CHECK_TYPE macro cannot be quoted when empty
-
-- fix: remove need and definition of HAVE_SOCKLEN_T symbol
-
-- fix: socklen_t definition comment
-
-- update several macros using AC_TRY_LINK with AC_LINK_IFELSE
-
-- fix underquoting of AC_LANG_PROGRAM arguments
-
-- if'def out private function ares__tvdiff(), it is not in use yet.
-
-- update several macros using AC_TRY_LINK with AC_LINK_IFELSE
-
-- fix socklen_t equivalent detection when cross compiling Windows target
-
-- if WINSOCK2 API is used link with 'ws2_32', else
-  
-  if WINSOCK API is used under WinCE link with 'winsock', else
-  
-  if WINSOCK API is used link with 'wsock32'.
-
-- on winsock systems linking is done using library 'ws2_32' when
-  winsock2.h is available, and library 'winsock' is used when only
-  winsock.h is available.
-
-- minor change for wince-cegcc and wince-mingw32ce support
-
-- millisecond resolution support followup
-
-Gisle Vanem (15 May 2008)
-- Replaced "-DHAVE_FIONBIO" with "-DHAVE_IOCTLSOCKET".
-  Added "-DHAVE_GETTIMEOFDAY". Trimmed lines.
-
-Yang Tse (15 May 2008)
-- sync with reality
-
-- remove compilation time generated files
-
-- use same time source for timeout initialization and processing
-
-- Improve toolchain detection for WinCE cross compilation:
-  
-  When cross compiling WinCE with the arm-wince-cegcc-gcc C compiler
-  symbol __CEGCC__ is defined and the unix-like compatibility layer
-  is used. For our purposes this is not a native Windows build.
-  
-  When cross compiling WinCE with the arm-wince-mingw32ce-gcc C compiler
-  symbol __MINGW32CE__ is defined and the unix-like compatibility layer
-  is not used. For our purposes this _is_ a native Windows build.
-
-- skip checks for Windows specific header files
-  when build target is not a native Windows one
-
-- WinCE cross compilation adjustments:
-  
-  HAVE_WINSOCK2_H shall not be defined.
-  HAVE_WS2TCPIP_H shall not be defined.
-
-Daniel Stenberg (13 May 2008)
-- - Introducing millisecond resolution support for the timeout option. See
-    ares_init_options()'s ARES_OPT_TIMEOUTMS.
diff --git a/INSTALL b/INSTALL
index 4db2baf..c78487d 100644
--- a/INSTALL
+++ b/INSTALL
@@ -321,7 +321,7 @@ PORTS
 Useful URLs
 ===========
 
-c-ares       http://c-ares.haxx.se/
+c-ares       https://c-ares.haxx.se/
 
 MingW        http://www.mingw.org/
 MinGW-w64    http://mingw-w64.sourceforge.net/
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..86b520b
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,15 @@
+# c-ares license
+
+Copyright (c) 2007 - 2016, Daniel Stenberg with many contributors, see AUTHORS
+file.
+
+Copyright 1998 by the Massachusetts Institute of Technology.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided that
+the above copyright notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting documentation, and that
+the name of M.I.T. not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior permission.
+M.I.T. makes no representations about the suitability of this software for any
+purpose.  It is provided "as is" without express or implied warranty.
diff --git a/Makefile.am b/Makefile.am
index af0ceb2..3ba40ba 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -56,7 +56,7 @@ EXTRA_DIST = AUTHORS CHANGES README.cares Makefile.inc Makefile.dj	   \
  config-win32.h RELEASE-NOTES libcares.pc.in buildconf get_ver.awk maketgz \
  TODO ares_build.h.in $(PDFPAGES) cares.rc README.msvc $(MSVCFILES)	   \
  $(CSOURCES) $(HHEADERS) config-dos.h acountry.1 adig.1 ahost.1 INSTALL	   \
- README.md
+ README.md LICENSE.md
 
 CLEANFILES = $(PDFPAGES) $(HTMLPAGES)
 
@@ -67,7 +67,7 @@ DIST_SUBDIRS = test
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libcares.pc
 
-CARES_VERSION_INFO = -version-info 3:0:1
+CARES_VERSION_INFO = -version-info 4:0:2
 # This flag accepts an argument of the form current[:revision[:age]]. So,
 # passing -version-info 3:12:1 sets current to 3, revision to 12, and age to
 # 1.
diff --git a/Makefile.dj b/Makefile.dj
index 799611f..f891f7f 100644
--- a/Makefile.dj
+++ b/Makefile.dj
@@ -1,6 +1,6 @@
 #
 # c-ares Makefile for djgpp/gcc/Watt-32.
-#   By Gisle Vanem <gvanem@broadpark.no> 2004.
+#   By Gisle Vanem <gvanem@yahoo.no> 2004.
 #
 
 
diff --git a/Makefile.in b/Makefile.in
index 29bafb6..7ae617a 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -102,6 +102,7 @@ subdir = .
 SUBDIRS =
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/ax_code_coverage.m4 \
+	$(top_srcdir)/m4/ax_cxx_compile_stdcxx_11.m4 \
 	$(top_srcdir)/m4/cares-compilers.m4 \
 	$(top_srcdir)/m4/cares-confopts.m4 \
 	$(top_srcdir)/m4/cares-functions.m4 \
@@ -388,6 +389,10 @@ CODE_COVERAGE_LDFLAGS = @CODE_COVERAGE_LDFLAGS@
 CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
 CPPFLAG_CARES_STATICLIB = @CPPFLAG_CARES_STATICLIB@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -403,6 +408,7 @@ FGREP = @FGREP@
 GCOV = @GCOV@
 GENHTML = @GENHTML@
 GREP = @GREP@
+HAVE_CXX11 = @HAVE_CXX11@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -449,6 +455,7 @@ abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
 ac_ct_AR = @ac_ct_AR@
 ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
 ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
 am__include = @am__include@
 am__leading_dot = @am__leading_dot@
@@ -541,14 +548,14 @@ EXTRA_DIST = AUTHORS CHANGES README.cares Makefile.inc Makefile.dj	   \
  config-win32.h RELEASE-NOTES libcares.pc.in buildconf get_ver.awk maketgz \
  TODO ares_build.h.in $(PDFPAGES) cares.rc README.msvc $(MSVCFILES)	   \
  $(CSOURCES) $(HHEADERS) config-dos.h acountry.1 adig.1 ahost.1 INSTALL	   \
- README.md
+ README.md LICENSE.md
 
 CLEANFILES = $(PDFPAGES) $(HTMLPAGES)
 DISTCLEANFILES = ares_build.h
 DIST_SUBDIRS = test
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libcares.pc
-CARES_VERSION_INFO = -version-info 3:0:1
+CARES_VERSION_INFO = -version-info 4:0:2
 # This flag accepts an argument of the form current[:revision[:age]]. So,
 # passing -version-info 3:12:1 sets current to 3, revision to 12, and age to
 # 1.
diff --git a/Makefile.m32 b/Makefile.m32
index 42149f5..c27a597 100644
--- a/Makefile.m32
+++ b/Makefile.m32
@@ -10,16 +10,16 @@
 
 LIB	= libcares.a
 
-AR	= ar
-CC	= gcc
-LD	= gcc
-RANLIB	= ranlib
+AR	= $(CROSSPREFIX)ar
+CC	= $(CROSSPREFIX)gcc
+LD	= $(CROSSPREFIX)gcc
+RANLIB	= $(CROSSPREFIX)ranlib
 #RM	= rm -f
 CP	= cp -afv
 
-CFLAGS	= -O2 -Wall -I.
+CFLAGS	= $(CARES_CFLAG_EXTRAS) -O2 -Wall -I.
 CFLAGS	+= -DCARES_STATICLIB
-LDFLAGS	= -s
+LDFLAGS	= $(CARES_LDFLAG_EXTRAS) -s
 LIBS	= -lwsock32
 
 # Makefile.inc provides the CSOURCES and HHEADERS defines
@@ -74,4 +74,3 @@ distclean: clean
 ifeq "$(wildcard ares_build.h.dist)" "ares_build.h.dist"
 	$(RM) ares_build.h
 endif
-
diff --git a/Makefile.msvc b/Makefile.msvc
index 7f4806b..e05e317 100644
--- a/Makefile.msvc
+++ b/Makefile.msvc
@@ -18,12 +18,12 @@
 # Makefile for building c-ares libraries and sample programs with MSVC.
 #
 # Usage: nmake /f makefile.msvc CFG=<config> <target>
-# 
+#
 # <config> must be one of: [ lib-release | lib-debug | dll-release | dll-debug }
 # <target> must be one of: [ ALL | c-ares | acountry | adig | ahost | clean }
-# 
+#
 # If a <target> other than ALL or clean is given, <config> becomes mandatory.
-# 
+#
 # If neither <config> nor <target> are specified this results in
 # all targets being built for all <config> c-ares library types.
 #
@@ -71,74 +71,10 @@ RTLIBD = /MTd
 
 USE_WATT32 = 0
 
-# -------------------------------------------
-# Detect NMAKE version deducing MSVC version
-# -------------------------------------------
-
-!IFNDEF _NMAKE_VER
-!  MESSAGE Macro _NMAKE_VER not defined.
-!  MESSAGE Use MSVC's NMAKE to process this makefile.
-!  ERROR   See previous message.
-!ENDIF
-
-!IF     "$(_NMAKE_VER)" == "6.00.8168.0"
-CC_VERS_NUM = 60
-!ELSEIF "$(_NMAKE_VER)" == "6.00.9782.0"
-CC_VERS_NUM = 60
-!ELSEIF "$(_NMAKE_VER)" == "7.00.8882"
-CC_VERS_NUM = 70
-!ELSEIF "$(_NMAKE_VER)" == "7.00.9466"
-CC_VERS_NUM = 70
-!ELSEIF "$(_NMAKE_VER)" == "7.00.9955"
-CC_VERS_NUM = 70
-!ELSEIF "$(_NMAKE_VER)" == "7.10.2240.8"
-CC_VERS_NUM = 71
-!ELSEIF "$(_NMAKE_VER)" == "7.10.3077"
-CC_VERS_NUM = 71
-!ELSEIF "$(_NMAKE_VER)" == "8.00.40607.16"
-CC_VERS_NUM = 80
-!ELSEIF "$(_NMAKE_VER)" == "8.00.50727.42"
-CC_VERS_NUM = 80
-!ELSEIF "$(_NMAKE_VER)" == "8.00.50727.762"
-CC_VERS_NUM = 80
-!ELSEIF "$(_NMAKE_VER)" == "9.00.20706.01"
-CC_VERS_NUM = 90
-!ELSEIF "$(_NMAKE_VER)" == "9.00.21022.08"
-CC_VERS_NUM = 90
-!ELSEIF "$(_NMAKE_VER)" == "9.00.30729.01"
-CC_VERS_NUM = 90
-!ELSEIF "$(_NMAKE_VER)" == "10.00.20506.01"
-CC_VERS_NUM = 100
-!ELSEIF "$(_NMAKE_VER)" == "10.00.21003.01"
-CC_VERS_NUM = 100
-!ELSEIF "$(_NMAKE_VER)" == "10.00.30128.01"
-CC_VERS_NUM = 100
-!ELSEIF "$(_NMAKE_VER)" == "10.00.30319.01"
-CC_VERS_NUM = 100
-!ELSEIF "$(_NMAKE_VER)" == "10.00.40219.01"
-CC_VERS_NUM = 100
-!ELSEIF "$(_NMAKE_VER)" == "11.00.50522.1"
-CC_VERS_NUM = 110
-!ELSEIF "$(_NMAKE_VER)" == "11.00.50727.1"
-CC_VERS_NUM = 110
-!ELSEIF "$(_NMAKE_VER)" == "11.00.51106.1"
-CC_VERS_NUM = 110
-!ELSEIF "$(_NMAKE_VER)" == "11.00.60315.1"
-CC_VERS_NUM = 110
-!ELSEIF "$(_NMAKE_VER)" == "11.00.61030.0"
-CC_VERS_NUM = 110
-!ELSEIF "$(_NMAKE_VER)" == "12.00.21005.1"
-CC_VERS_NUM = 120
-!ELSEIF "$(_NMAKE_VER)" == "14.00.23026.0"
-CC_VERS_NUM = 140
-!ELSE
-!  MESSAGE Unknown value for _NMAKE_VER macro: "$(_NMAKE_VER)"
-!  MESSAGE Please, report this condition on the c-ares development
-!  MESSAGE mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
-!  ERROR   See previous message.
-!ENDIF
-
-CC_VERS_STR = msvc$(CC_VERS_NUM)
+# --------------------------------------------------------
+# Detect compiler version.
+# --------------------------------------------------------
+!INCLUDE .\msvc_ver.inc
 
 # ----------------------------------------------------
 # Verify that current subdir is the c-ares source one
diff --git a/Makefile.netware b/Makefile.netware
index 653efb0..fa8f831 100644
--- a/Makefile.netware
+++ b/Makefile.netware
@@ -306,7 +306,6 @@ ifeq ($(LIBARCH),CLIB)
 	@echo $(DL)#define SEND_TYPE_ARG3 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV int$(DL) >> $@
-	@echo $(DL)#define SIZEOF_SIZE_T 4$(DL) >> $@
 else
 	@echo $(DL)#define OS "i586-pc-libc-NetWare"$(DL) >> $@
 	@echo $(DL)#define HAVE_DLFCN_H 1$(DL) >> $@
@@ -349,8 +348,6 @@ else
 	@echo $(DL)#define SEND_TYPE_ARG3 size_t$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV ssize_t$(DL) >> $@
-	@echo $(DL)#define SIZEOF_SIZE_T 8$(DL) >> $@
-	@echo $(DL)#define SIZEOF_STRUCT_IN6_ADDR 16$(DL) >> $@
 endif
 	@echo $(DL)#define HAVE_ARPA_INET_H 1$(DL) >> $@
 	@echo $(DL)#define HAVE_ASSERT_H 1$(DL) >> $@
@@ -397,9 +394,6 @@ endif
 	@echo $(DL)#define HAVE_UTIME_H 1$(DL) >> $@
 	@echo $(DL)#define HAVE_WRITEV 1$(DL) >> $@
 	@echo $(DL)#define RETSIGTYPE void$(DL) >> $@
-	@echo $(DL)#define SIZEOF_INT 4$(DL) >> $@
-	@echo $(DL)#define SIZEOF_SHORT 2$(DL) >> $@
-	@echo $(DL)#define SIZEOF_STRUCT_IN_ADDR 4$(DL) >> $@
 	@echo $(DL)#define STDC_HEADERS 1$(DL) >> $@
 	@echo $(DL)#define TIME_WITH_SYS_TIME 1$(DL) >> $@
 ifdef NW_WINSOCK
@@ -431,11 +425,8 @@ ares_build.h: Makefile.netware FORCE
 	@echo $(DL)#define __CARES_BUILD_H$(DL) >> $@
 ifeq ($(LIBARCH),CLIB)
 	@echo $(DL)#define CARES_TYPEOF_ARES_SOCKLEN_T int$(DL) >> $@
-	@echo $(DL)#define CARES_SIZEOF_ARES_SOCKLEN_T 4$(DL) >> $@
 else
 	@echo $(DL)#define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int$(DL) >> $@
-	@echo $(DL)#define CARES_SIZEOF_ARES_SOCKLEN_T 4$(DL) >> $@
 endif
-	@echo $(DL)#define CARES_SIZEOF_LONG 4$(DL) >> $@
 	@echo $(DL)typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;$(DL) >> $@
 	@echo $(DL)#endif /* __CARES_BUILD_H */$(DL) >> $@
diff --git a/README.cares b/README.cares
index 817f130..4dee46e 100644
--- a/README.cares
+++ b/README.cares
@@ -12,4 +12,4 @@ compatible with ares: a new name makes that more obvious to the public.
 The original libares was distributed at
 ftp://athena-dist.mit.edu:pub/ATHENA/ares (which seems to not be alive
 anymore).  A local copy of the original ares package is kept here:
-http://c-ares.haxx.se/download/ares-1.1.1.tar.gz
+https://c-ares.haxx.se/download/ares-1.1.1.tar.gz
diff --git a/README.md b/README.md
index cd35a8f..fdf3a71 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ c-ares
 [![Build Status](https://travis-ci.org/c-ares/c-ares.svg?branch=master)](https://travis-ci.org/c-ares/c-ares)
 [![Windows Build Status](https://ci.appveyor.com/api/projects/status/03i7151772eq3wn3/branch/master?svg=true)](https://ci.appveyor.com/project/c-ares/c-ares)
 [![Coverage Status](https://coveralls.io/repos/c-ares/c-ares/badge.svg?branch=master&service=github)](https://coveralls.io/github/c-ares/c-ares?branch=master)
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/291/badge)](https://bestpractices.coreinfrastructure.org/projects/291)
 
 This is c-ares, an asynchronous resolver library.  It is intended for
 applications which need to perform DNS queries without blocking, or need to
@@ -22,7 +23,7 @@ c-ares is of course distributed under the same MIT-style license as the
 original ares.
 
 You'll find all c-ares details and news here:
-        http://c-ares.haxx.se/
+        https://c-ares.haxx.se/
 
 
 Notes for c-ares hackers
diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index da8b7d5..dffb023 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -1,71 +1,46 @@
-c-ares version 1.11.0
+c-ares version 1.12.0
 
 Changes:
 
- o Add a unit test suite
- o Allow builds with code converage with --enable-code-coverage configure option
- o Allow library-wide override of malloc/free
- o Allow multiple -s options to the ahost command
- o api: Expose the ares_library_initialized() function
- o api: Add ares_set_sortlist(3) entrypoint
- o api: Add entrypoints to allow use of per-server ports
- o api: introduce `ares_parse_txt_reply_ext`
- o api: Add ares_set_socket_configure_callback()
-
+ o api: add ARES_OPT_NOROTATE optmask value
+ 
 Bug fixes:
 
- o timeadd: make static
- o timeoffset: made static and private
- o nowarn: use <limits.h> instead of configure for size of long
- o single_domain: Invalid memory access for empty string input
- o ares_build.h: fix building on 64-bit powerpc
- o Allow specification of search domain in ahost
- o Don't override explicitly specified search domains
- o ares_parse_soa_reply: Do not leak rr_name on allocation failure
- o Update ahost man page to describe -s option
- o host_callback: Fall back to AF_INET on searching with AF_UNSPEC
- o Add -t u option to ahost
- o CONTRIBUTING: added
- o ares_set_servers_csv: fix NULL dereference
- o Fix integer shift overflow if both tcp_socket and udp_socket are set
- o fix acountry memory leak
- o lookup_service: prevent tmpbuf from overrunning
- o ares_getnameinfo.3: there is no ares_getaddrinfo
- o init_by_defaults: Continue loop if space for hostname not large enough
- o Destroy options if ares_save_options fails
- o ares__read_line: free buf on realloc failure
- o added define for visual studio 2013
- o windows: fix slow DNS lookup issue
- o Use libresolv to initialize cares on iPhone targets
- o buildconf: remove check for libtool, it only requires libtoolize
- o init_by_resolv_conf: Don't exit loop early leaving uninitialized entries
- o ahost: check the select() return code
- o configure_socket: explicitly ignore return code
- o read_tcp_data: don't try to use NULL pointer after malloc failure
- o Distribute all man pages
- o ares_expand_name: check for valid bits in label length
- o ares__read_line: clear buf pointer on realloc failure
- o process_answer: fix things up correctly when removing EDNS option
- o ares_parse_txt_reply: propagate errors from per-substring loop
- o ares_gethostbyname: don't leak valid-but-empty hostent
- o ares_init_options: don't lose init failure
- o ares_dup: clear new channel on failure
- o config_sortlist: free any existing sortlist on (re)alloc failure
- o ares_striendstr: fix so non-NULL return can happen
- o bitncmp: update comment to match code behaviour
- o ares_set_servers_csv.3: make return type match code
- o init_by_resolv_conf: ignore `fopen` errors to use default values
- o Use "resolve" as synonym of "dns" in nsswitch.conf
- o ares_win32_init: make LoadLibrary work when using UNICODE too
- o dist: Distribute README.md
- o configure: build silently by default
- o ares_dup.3: remove mention of nonexistent function
-
+ o CVE-2016-5180: ares_create_query single byte out of buffer write [4]
+ o configure: acknowledge --disable-tests [1]
+ o man pages: fix typos detected by Lintian
+ o test: add missing #includes for dns-proto.cc
+ o test: avoid in6addr_* constants
+ o test: Build with MinGW on AppVeyor
+ o Makefile.m32: add support for extra flags
+ o Makefile.m32: add support for CROSSPREFIX
+ o configure: check if tests can get built before enabled
+ o ares_library_cleanup: reset ares_realloc too
+ o ahost.c: add cast to fix C++ compile
+ o test: Only pass unused args to GoogleTest
+ o build: commonize MSVC version detection
+ o msvc_ver.inc: support Visual Studio 2015 Update 1, 2, 3
+ o test: for AF_UNSPEC, return CNAME only for AAAA, but valid A record
+ o ares_getnameinfo: explicitly clear struct servent before use
+ o test: Update fuzzing function prototype
+ o init: fix nsort initialization
+ o test: add fuzzing check script to tests
+ o web: http => https
+ o read_tcp_data: remove superfluous NULL check
+ o LICENSE.md: add a stand-alone license file
+ o SECURITY.md: suggested "security process" for the project
+ o ares_init_options: only propagate init failures from options [2]
+ o headers: remove checks for and defines of variable sizes
+ o test: fix gMock to work with gcc >= 6.x [3]
+ 
 Thanks go to these friendly people for their efforts and contributions:
 
-  Andrew Andkjar, Andrew Ayer, Daniel Stenberg, David Drysdale,
-  Doug Kwan, Fedor Indutny, Frederic Germain, Gisle Vanem, Gregor Jasny,
-  Guenter Knauf, Jakub Hrozek, Lei Shi, Nicolas "Pixel" Noble,
-  Svante Karlsson, Tor Arntsen, Yang Tse
+  Alexander Drachevskiy, Brad House, Chris Araman, Daniel Stenberg,
+  David Drysdale, Gregor Jasny, Svante Karlsson, Viktor Szakats
+
+References to bug reports and discussions on issues:
 
-Have fun!
+ [1] = https://github.com/c-ares/c-ares/issues/44
+ [2] = https://github.com/c-ares/c-ares/issues/60
+ [3] = https://github.com/google/googletest/issues/705#issuecomment-235067917
+ [4] = https://c-ares.haxx.se/adv_20160929.html
diff --git a/aclocal.m4 b/aclocal.m4
index 5465c47..a35aab8 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1187,6 +1187,7 @@ AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
 m4_include([m4/ax_code_coverage.m4])
+m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
 m4_include([m4/cares-compilers.m4])
 m4_include([m4/cares-confopts.m4])
 m4_include([m4/cares-functions.m4])
diff --git a/acountry.c b/acountry.c
index e157702..aea22c8 100644
--- a/acountry.c
+++ b/acountry.c
@@ -15,7 +15,7 @@
  *
  * Ref: http://countries.nerd.dk/more.html
  *
- * Written by G. Vanem <gvanem@broadpark.no> 2006, 2007
+ * Written by G. Vanem <gvanem@yahoo.no> 2006, 2007
  *
  * NB! This program may not be big-endian aware.
  *
diff --git a/ahost.c b/ahost.c
index dec66a9..7fbfd64 100644
--- a/ahost.c
+++ b/ahost.c
@@ -88,8 +88,8 @@ int main(int argc, char **argv)
         case 's':
           optmask |= ARES_OPT_DOMAINS;
           options.ndomains++;
-          options.domains = realloc(options.domains,
-                                    options.ndomains * sizeof(char *));
+          options.domains = (char **)realloc(options.domains,
+                                             options.ndomains * sizeof(char *));
           options.domains[options.ndomains - 1] = strdup(optarg);
           break;
         case 't':
diff --git a/ares.h b/ares.h
index cd94d4f..cbd30f6 100644
--- a/ares.h
+++ b/ares.h
@@ -158,6 +158,7 @@ extern "C" {
 #define ARES_OPT_TIMEOUTMS      (1 << 13)
 #define ARES_OPT_ROTATE         (1 << 14)
 #define ARES_OPT_EDNSPSZ        (1 << 15)
+#define ARES_OPT_NOROTATE       (1 << 16)
 
 /* Nameinfo flag values */
 #define ARES_NI_NOFQDN                  (1 << 0)
diff --git a/ares_build.h b/ares_build.h
index 7d69f1e..9a865e3 100644
--- a/ares_build.h
+++ b/ares_build.h
@@ -83,148 +83,88 @@
 /*  DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE  */
 /* ================================================================ */
 
-#ifdef CARES_SIZEOF_LONG
-#  error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
-   Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
-#endif
-
 #ifdef CARES_TYPEOF_ARES_SOCKLEN_T
 #  error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
    Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
 #endif
 
-#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
-#  error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
-   Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
-#endif
-
 /* ================================================================ */
 /*    EXTERNAL INTERFACE SETTINGS FOR NON-CONFIGURE SYSTEMS ONLY    */
 /* ================================================================ */
 
 #if defined(__DJGPP__) || defined(__GO32__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__SALFORDC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__BORLANDC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__TURBOC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__WATCOMC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__POCC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__LCC__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__SYMBIAN32__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__MWERKS__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(_WIN32_WCE)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__MINGW32__)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__VMS)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 #elif defined(__OS400__)
 #  if defined(__ILEC400__)
-#    define CARES_SIZEOF_LONG           4
 #    define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-#    define CARES_SIZEOF_ARES_SOCKLEN_T 4
 #    define CARES_PULL_SYS_TYPES_H      1
 #    define CARES_PULL_SYS_SOCKET_H     1
 #  endif
 
 #elif defined(__MVS__)
 #  if defined(__IBMC__) || defined(__IBMCPP__)
-#    if defined(_ILP32)
-#      define CARES_SIZEOF_LONG           4
-#    elif defined(_LP64)
-#      define CARES_SIZEOF_LONG           8
-#    endif
 #    define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-#    define CARES_SIZEOF_ARES_SOCKLEN_T 4
 #    define CARES_PULL_SYS_TYPES_H      1
 #    define CARES_PULL_SYS_SOCKET_H     1
 #  endif
 
 #elif defined(__370__)
 #  if defined(__IBMC__) || defined(__IBMCPP__)
-#    if defined(_ILP32)
-#      define CARES_SIZEOF_LONG           4
-#    elif defined(_LP64)
-#      define CARES_SIZEOF_LONG           8
-#    endif
 #    define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-#    define CARES_SIZEOF_ARES_SOCKLEN_T 4
 #    define CARES_PULL_SYS_TYPES_H      1
 #    define CARES_PULL_SYS_SOCKET_H     1
 #  endif
 
 #elif defined(TPF)
-#  define CARES_SIZEOF_LONG           8
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 /* ===================================== */
 /*    KEEP MSVC THE PENULTIMATE ENTRY    */
 /* ===================================== */
 
 #elif defined(_MSC_VER)
-#  define CARES_SIZEOF_LONG           4
 #  define CARES_TYPEOF_ARES_SOCKLEN_T int
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 
 /* ===================================== */
 /*    KEEP GENERIC GCC THE LAST ENTRY    */
 /* ===================================== */
 
 #elif defined(__GNUC__)
-#  if defined(__LP64__) || \
-        defined(__x86_64__) || defined(__ppc64__)
-#    define CARES_SIZEOF_LONG           8
-#  elif defined(__ILP32__) || \
-      defined(__i386__) || defined(__ppc__) || defined(__arm__)
-#    define CARES_SIZEOF_LONG           4
-#  endif
 #  define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-#  define CARES_SIZEOF_ARES_SOCKLEN_T 4
 #  define CARES_PULL_SYS_TYPES_H      1
 #  define CARES_PULL_SYS_SOCKET_H     1
 
diff --git a/ares_build.h.in b/ares_build.h.in
index 227782c..e582523 100644
--- a/ares_build.h.in
+++ b/ares_build.h.in
@@ -50,21 +50,11 @@
 /*  DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE  */
 /* ================================================================ */
 
-#ifdef CARES_SIZEOF_LONG
-#  error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
-   Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
-#endif
-
 #ifdef CARES_TYPEOF_ARES_SOCKLEN_T
 #  error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
    Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
 #endif
 
-#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
-#  error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
-   Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
-#endif
-
 /* ================================================================ */
 /*  EXTERNAL INTERFACE SETTINGS FOR CONFIGURE CAPABLE SYSTEMS ONLY  */
 /* ================================================================ */
@@ -95,15 +85,9 @@
 #  include <sys/socket.h>
 #endif
 
-/* The size of `long', as computed by sizeof. */
-#undef CARES_SIZEOF_LONG
-
 /* Integral data type used for ares_socklen_t. */
 #undef CARES_TYPEOF_ARES_SOCKLEN_T
 
-/* The size of `ares_socklen_t', as computed by sizeof. */
-#undef CARES_SIZEOF_ARES_SOCKLEN_T
-
 /* Data type definition of ares_socklen_t. */
 typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
 
diff --git a/ares_cancel.3 b/ares_cancel.3
index 0bf6281..e534e3f 100644
--- a/ares_cancel.3
+++ b/ares_cancel.3
@@ -23,14 +23,15 @@ ares_cancel \- Cancel a resolve
 .B void ares_cancel(ares_channel \fIchannel\fP)
 .fi
 .SH DESCRIPTION
-The \fBares_cancel\fP function cancels all lookups/requests made on the the
-name service channel identified by \fIchannel\fP.  \fBares_cancel\fP invokes
-the callbacks for each pending query on the channel, passing a status of
+The \fBares_cancel(3)\fP function cancels all lookups/requests made on the the
+name service channel identified by \fIchannel\fP.  \fBares_cancel(3)\fP
+invokes the callbacks for each pending query on the channel, passing a status
+of
 .BR ARES_ECANCELLED .
-These calls give the callbacks a chance to clean up any state which
-might have been stored in their arguments. If such a callback invocation adds
-a new request to the channel, that request will \fInot\fP be cancelled by the
-current invocation of \fBares_cancel\fP.
+These calls give the callbacks a chance to clean up any state which might have
+been stored in their arguments. If such a callback invocation adds a new
+request to the channel, that request will \fInot\fP be cancelled by the
+current invocation of \fBares_cancel(3)\fP.
 .SH SEE ALSO
 .BR ares_init (3)
 .BR ares_destroy (3)
diff --git a/ares_cancel.pdf b/ares_cancel.pdf
index cacc630..783b2d6 100644
--- a/ares_cancel.pdf
+++ b/ares_cancel.pdf
diff --git a/ares_config.h.in b/ares_config.h.in
index 3dbc68c..721ee45 100644
--- a/ares_config.h.in
+++ b/ares_config.h.in
@@ -81,6 +81,9 @@
 /* Define to 1 if you have the connect function. */
 #undef HAVE_CONNECT
 
+/* define if the compiler supports basic C++11 syntax */
+#undef HAVE_CXX11
+
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
@@ -442,27 +445,6 @@
 /* Define to the function return type for send. */
 #undef SEND_TYPE_RETV
 
-/* The size of `int', as computed by sizeof. */
-#undef SIZEOF_INT
-
-/* The size of `long', as computed by sizeof. */
-#undef SIZEOF_LONG
-
-/* The size of `short', as computed by sizeof. */
-#undef SIZEOF_SHORT
-
-/* The size of `size_t', as computed by sizeof. */
-#undef SIZEOF_SIZE_T
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#undef SIZEOF_STRUCT_IN6_ADDR
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#undef SIZEOF_STRUCT_IN_ADDR
-
-/* The size of `time_t', as computed by sizeof. */
-#undef SIZEOF_TIME_T
-
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
diff --git a/ares_create_query.3 b/ares_create_query.3
index 5fd94fc..59af0f0 100644
--- a/ares_create_query.3
+++ b/ares_create_query.3
@@ -18,45 +18,39 @@
 ares_create_query \- Compose a single-question DNS query buffer
 .SH SYNOPSIS
 .nf
-.B #include <ares.h>
-.PP
-.B int ares_create_query(const char *\fIname\fP, int \fIdnsclass\fP,\
-                         int \fItype\fP,
-.B		                   unsigned short \fIid\fP, int \fIrd\fP,\
-                         unsigned char **\fIbuf\fP,
-.B		                   int *\fIbuflen\fP, int \fImax_udp_size\fP)
+#include <ares.h>
+
+int ares_create_query(const char *\fIname\fP,
+                      int \fIdnsclass\fP,
+                      int \fItype\fP,
+                      unsigned short \fIid\fP,
+                      int \fIrd\fP,
+                      unsigned char **\fIbuf\fP,
+                      int *\fIbuflen\fP,
+                      int \fImax_udp_size\fP)
 .fi
 .SH DESCRIPTION
-The
-.B ares_create_query
-function composes a DNS query with a single question.
-The parameter
-.I name
-gives the query name as a NUL-terminated C string of period-separated
-labels optionally ending with a period; periods and backslashes within
-a label must be escaped with a backlash.  The parameters
-.I dnsclass
-and
-.I type
-give the class and type of the query using the values defined in
-.BR <arpa/nameser.h> .
-The parameter
-.I id
-gives a 16-bit identifier for the query.  The parameter
-.I rd
-should be nonzero if recursion is desired, zero if not.  The query
-will be placed in an allocated buffer, a pointer to which will be
-stored in the variable pointed to by
-.IR buf ,
-and the length of which will be stored in the variable pointed to by
-.IR buflen .
+The \fIares_create_query(3)\fP function composes a DNS query with a single
+question.  The parameter \fIname\fP gives the query name as a NUL-terminated C
+string of period-separated labels optionally ending with a period; periods and
+backslashes within a label must be escaped with a backlash.
+
+The parameters \fIdnsclass\fP and \fItype\fP give the class and type of the
+query using the values defined in \fB<arpa/nameser.h>\fP.
+
+The parameter \fIid\fP gives a 16-bit identifier for the query.
+
+The parameter \fIrd\fP should be nonzero if recursion is desired, zero if not.
+
+The query will be placed in an allocated buffer, a pointer to which will be
+stored in the variable pointed to by \fIbuf\fP, and the length of which will
+be stored in the variable pointed to by \fIbuflen\fP.
+
 It is the caller's responsibility to free this buffer using
-\fIares_free_string(3)\fP when it is no longer needed.
-The parameter
-.I max_udp_size
-should be nonzero to activate EDNS. Usage of \fIares_create_query(3)\fP\ with
-.I max_udp_size
-set to zero is equivalent to \fIares_mkquery(3)\fP.
+\fIares_free_string(3)\fP when it is no longer needed.  The parameter
+\fImax_udp_size\fP should be nonzero to activate EDNS. Usage of
+\fIares_create_query(3)\fP\ with \fImax_udp_size\fP set to zero is equivalent
+to using \fIares_mkquery(3)\fP.
 .SH RETURN VALUES
 .B ares_create_query
 can return any of the following values:
@@ -77,5 +71,6 @@ Memory was exhausted.
 Added in c-ares 1.10.0
 .SH SEE ALSO
 .BR ares_expand_name (3),
-.BR ares_free_string (3)
+.BR ares_free_string (3),
+.BR ares_mkquery (3)
 .SH AUTHOR
diff --git a/ares_create_query.c b/ares_create_query.c
index a34dda7..7f4c52d 100644
--- a/ares_create_query.c
+++ b/ares_create_query.c
@@ -85,57 +85,31 @@
  */
 
 int ares_create_query(const char *name, int dnsclass, int type,
-                      unsigned short id, int rd, unsigned char **buf,
-                      int *buflen, int max_udp_size)
+                      unsigned short id, int rd, unsigned char **bufp,
+                      int *buflenp, int max_udp_size)
 {
-  int len;
+  size_t len;
   unsigned char *q;
   const char *p;
+  size_t buflen;
+  unsigned char *buf;
 
   /* Set our results early, in case we bail out early with an error. */
-  *buflen = 0;
-  *buf = NULL;
+  *buflenp = 0;
+  *bufp = NULL;
 
-  /* Compute the length of the encoded name so we can check buflen.
-   * Start counting at 1 for the zero-length label at the end. */
-  len = 1;
-  for (p = name; *p; p++)
-    {
-      if (*p == '\\' && *(p + 1) != 0)
-        p++;
-      len++;
-    }
-  /* If there are n periods in the name, there are n + 1 labels, and
-   * thus n + 1 length fields, unless the name is empty or ends with a
-   * period.  So add 1 unless name is empty or ends with a period.
+  /* Allocate a memory area for the maximum size this packet might need. +2
+   * is for the length byte and zero termination if no dots or ecscaping is
+   * used.
    */
-  if (*name && *(p - 1) != '.')
-    len++;
-
-  /* Immediately reject names that are longer than the maximum of 255
-   * bytes that's specified in RFC 1035 ("To simplify implementations,
-   * the total length of a domain name (i.e., label octets and label
-   * length octets) is restricted to 255 octets or less."). We aren't
-   * doing this just to be a stickler about RFCs. For names that are
-   * too long, 'dnscache' closes its TCP connection to us immediately
-   * (when using TCP) and ignores the request when using UDP, and
-   * BIND's named returns ServFail (TCP or UDP). Sending a request
-   * that we know will cause 'dnscache' to close the TCP connection is
-   * painful, since that makes any other outstanding requests on that
-   * connection fail. And sending a UDP request that we know
-   * 'dnscache' will ignore is bad because resources will be tied up
-   * until we time-out the request.
-   */
-  if (len > MAXCDNAME)
-    return ARES_EBADNAME;
-
-  *buflen = len + HFIXEDSZ + QFIXEDSZ + (max_udp_size ? EDNSFIXEDSZ : 0);
-  *buf = ares_malloc(*buflen);
-  if (!*buf)
-      return ARES_ENOMEM;
+  len = strlen(name) + 2 + HFIXEDSZ + QFIXEDSZ +
+    (max_udp_size ? EDNSFIXEDSZ : 0);
+  buf = ares_malloc(len);
+  if (!buf)
+    return ARES_ENOMEM;
 
   /* Set up the header. */
-  q = *buf;
+  q = buf;
   memset(q, 0, HFIXEDSZ);
   DNS_HEADER_SET_QID(q, id);
   DNS_HEADER_SET_OPCODE(q, QUERY);
@@ -159,8 +133,10 @@ int ares_create_query(const char *name, int dnsclass, int type,
   q += HFIXEDSZ;
   while (*name)
     {
-      if (*name == '.')
+      if (*name == '.') {
+        free (buf);
         return ARES_EBADNAME;
+      }
 
       /* Count the number of bytes in this label. */
       len = 0;
@@ -170,8 +146,10 @@ int ares_create_query(const char *name, int dnsclass, int type,
             p++;
           len++;
         }
-      if (len > MAXLABEL)
+      if (len > MAXLABEL) {
+        free (buf);
         return ARES_EBADNAME;
+      }
 
       /* Encode the length and copy the data. */
       *q++ = (unsigned char)len;
@@ -195,14 +173,30 @@ int ares_create_query(const char *name, int dnsclass, int type,
   DNS_QUESTION_SET_TYPE(q, type);
   DNS_QUESTION_SET_CLASS(q, dnsclass);
 
+  q += QFIXEDSZ;
   if (max_udp_size)
   {
-      q += QFIXEDSZ;
       memset(q, 0, EDNSFIXEDSZ);
       q++;
       DNS_RR_SET_TYPE(q, T_OPT);
       DNS_RR_SET_CLASS(q, max_udp_size);
+      q += (EDNSFIXEDSZ-1);
+  }
+  buflen = (q - buf);
+
+  /* Reject names that are longer than the maximum of 255 bytes that's
+   * specified in RFC 1035 ("To simplify implementations, the total length of
+   * a domain name (i.e., label octets and label length octets) is restricted
+   * to 255 octets or less."). */
+  if (buflen > (MAXCDNAME + HFIXEDSZ + QFIXEDSZ +
+                (max_udp_size ? EDNSFIXEDSZ : 0))) {
+    free (buf);
+    return ARES_EBADNAME;
   }
 
+  /* we know this fits in an int at this point */
+  *buflenp = (int) buflen;
+  *bufp = buf;
+
   return ARES_SUCCESS;
 }
diff --git a/ares_create_query.pdf b/ares_create_query.pdf
index 9bb7869..9f5fe02 100644
--- a/ares_create_query.pdf
+++ b/ares_create_query.pdf
diff --git a/ares_destroy.3 b/ares_destroy.3
index 3724df1..7af7fe3 100644
--- a/ares_destroy.3
+++ b/ares_destroy.3
@@ -23,18 +23,14 @@ ares_destroy \- Destroy a resolver channel
 .B void ares_destroy(ares_channel \fIchannel\fP)
 .fi
 .SH DESCRIPTION
-The
-.B ares_destroy
-function destroys the name service channel identified by
-.IR channel ,
-freeing all memory and closing all sockets used by the channel.
-.B ares_destroy
-invokes the callbacks for each pending query on the channel, passing a
-status of
-.BR ARES_EDESTRUCTION .
-These calls give the callbacks a chance to clean up any state which
-might have been stored in their arguments. A callback must not add new
-requests to a channel being destroyed.
+The \fBares_destroy(3)\fP function destroys the name service channel
+identified by \fIchannel\fP, freeing all memory and closing all sockets used
+by the channel.
+
+\fBares_destroy(3)\fP invokes the callbacks for each pending query on the
+channel, passing a status of \IARES_EDESTRUCTION\fP. These calls give the
+callbacks a chance to clean up any state which might have been stored in their
+arguments. A callback must not add new requests to a channel being destroyed.
 .SH SEE ALSO
 .BR ares_init (3),
 .BR ares_cancel (3)
diff --git a/ares_destroy.pdf b/ares_destroy.pdf
index b14c24b..53035e7 100644
--- a/ares_destroy.pdf
+++ b/ares_destroy.pdf
diff --git a/ares_destroy_options.3 b/ares_destroy_options.3
index 3e564b2..31e346b 100644
--- a/ares_destroy_options.3
+++ b/ares_destroy_options.3
@@ -23,12 +23,9 @@ ares_destroy_options \- Destroy options initialized with ares_save_options
 .B void ares_destroy_options(struct ares_options *\fIoptions\fP)
 .fi
 .SH DESCRIPTION
-The
-.B ares_destroy_options
-function destroys the options struct identified by
-.IR options ,
-freeing all memory allocated by ares_save_options.
-
+The \fBares_destroy_options(3)\fP function destroys the options struct
+identified by \Ioptions\fP, freeing all memory allocated by
+\fBares_save_options(3)\fP.
 .SH SEE ALSO
 .BR ares_save_options (3),
 .BR ares_init_options (3)
diff --git a/ares_destroy_options.pdf b/ares_destroy_options.pdf
index 2de9437..cebd0a7 100644
--- a/ares_destroy_options.pdf
+++ b/ares_destroy_options.pdf
diff --git a/ares_dup.3 b/ares_dup.3
index 87bf209..e64c104 100644
--- a/ares_dup.3
+++ b/ares_dup.3
@@ -33,7 +33,7 @@ handle when the channel is no longer needed.
 .BR ares_init(3),
 .BR ares_library_init(3)
 .SH AVAILABILITY
-ares_dup(3) was added in c-ares 1.6.0
+\fIares_dup(3)\fP was added in c-ares 1.6.0
 .SH AUTHOR
 Daniel Stenberg
 
diff --git a/ares_dup.pdf b/ares_dup.pdf
index c7be99b..bc376a5 100644
--- a/ares_dup.pdf
+++ b/ares_dup.pdf
diff --git a/ares_expand_name.pdf b/ares_expand_name.pdf
index 9d8a693..332812a 100644
--- a/ares_expand_name.pdf
+++ b/ares_expand_name.pdf
diff --git a/ares_expand_string.pdf b/ares_expand_string.pdf
index 5769ebc..94fa2fd 100644
--- a/ares_expand_string.pdf
+++ b/ares_expand_string.pdf
diff --git a/ares_fds.pdf b/ares_fds.pdf
index f8dde89..dc7f2d2 100644
--- a/ares_fds.pdf
+++ b/ares_fds.pdf
diff --git a/ares_free_data.pdf b/ares_free_data.pdf
index c65e51a..0a940b1 100644
--- a/ares_free_data.pdf
+++ b/ares_free_data.pdf
diff --git a/ares_free_hostent.pdf b/ares_free_hostent.pdf
index b334c00..b6dc6a2 100644
--- a/ares_free_hostent.pdf
+++ b/ares_free_hostent.pdf
diff --git a/ares_free_string.3 b/ares_free_string.3
index 55af7d2..61d88aa 100644
--- a/ares_free_string.3
+++ b/ares_free_string.3
@@ -23,9 +23,8 @@ ares_free_string \- Free strings allocated by ares functions
 .B void ares_free_string(void *\fIstr\fP)
 .fi
 .SH DESCRIPTION
-The
-.I ares_free_string
-function frees a string allocated by an ares function.
+The \fIares_free_string(3)\fP function frees a string allocated by an ares
+function.
 .SH SEE ALSO
 .BR ares_mkquery (3)
 .BR ares_expand_string (3)
diff --git a/ares_free_string.pdf b/ares_free_string.pdf
index 7b2bffa..e9c0985 100644
--- a/ares_free_string.pdf
+++ b/ares_free_string.pdf
diff --git a/ares_get_servers.3 b/ares_get_servers.3
index 7752845..d606428 100644
--- a/ares_get_servers.3
+++ b/ares_get_servers.3
@@ -56,7 +56,7 @@ IPv4-only name server usage.
 This function may return any of the following values:
 .TP 15
 .B ARES_SUCCESS
-The name servers configuration was successfuly retrieved
+The name servers configuration was successfully retrieved
 .TP 15
 .B ARES_ENOMEM
 The memory was exhausted
diff --git a/ares_get_servers.pdf b/ares_get_servers.pdf
index a47f545..f4f5796 100644
--- a/ares_get_servers.pdf
+++ b/ares_get_servers.pdf
diff --git a/ares_get_servers_ports.pdf b/ares_get_servers_ports.pdf
index 83076bd..ec7f05f 100644
--- a/ares_get_servers_ports.pdf
+++ b/ares_get_servers_ports.pdf
diff --git a/ares_gethostbyaddr.pdf b/ares_gethostbyaddr.pdf
index 86ddc29..96d0b15 100644
--- a/ares_gethostbyaddr.pdf
+++ b/ares_gethostbyaddr.pdf
diff --git a/ares_gethostbyname.pdf b/ares_gethostbyname.pdf
index 0da4edc..c6608d3 100644
--- a/ares_gethostbyname.pdf
+++ b/ares_gethostbyname.pdf
diff --git a/ares_gethostbyname_file.pdf b/ares_gethostbyname_file.pdf
index 2737a50..e4c53c3 100644
--- a/ares_gethostbyname_file.pdf
+++ b/ares_gethostbyname_file.pdf
diff --git a/ares_getnameinfo.c b/ares_getnameinfo.c
index d5571a7..4516112 100644
--- a/ares_getnameinfo.c
+++ b/ares_getnameinfo.c
@@ -299,6 +299,7 @@ static char *lookup_service(unsigned short port, int flags,
           else
             proto = "tcp";
 #ifdef HAVE_GETSERVBYPORT_R
+          memset(&se, 0, sizeof(se));
           sep = &se;
           memset(tmpbuf, 0, sizeof(tmpbuf));
 #if GETSERVBYPORT_R_ARGS == 6
diff --git a/ares_getnameinfo.pdf b/ares_getnameinfo.pdf
index 16ba7f8..faa29a1 100644
--- a/ares_getnameinfo.pdf
+++ b/ares_getnameinfo.pdf
diff --git a/ares_getsock.pdf b/ares_getsock.pdf
index b21440f..eaea9a3 100644
--- a/ares_getsock.pdf
+++ b/ares_getsock.pdf
diff --git a/ares_inet_ntop.pdf b/ares_inet_ntop.pdf
index 87af924..8bf5cbb 100644
--- a/ares_inet_ntop.pdf
+++ b/ares_inet_ntop.pdf
diff --git a/ares_inet_pton.pdf b/ares_inet_pton.pdf
index dd26a4a..86d43c1 100644
--- a/ares_inet_pton.pdf
+++ b/ares_inet_pton.pdf
diff --git a/ares_init.3 b/ares_init.3
index c3e40cf..0baf4b7 100644
--- a/ares_init.3
+++ b/ares_init.3
@@ -16,167 +16,24 @@
 .\"
 .TH ARES_INIT 3 "5 March 2010"
 .SH NAME
-ares_init, ares_init_options \- Initialize a resolver channel
+ares_init \- Initialize a resolver channel
 .SH SYNOPSIS
 .nf
-.B #include <ares.h>
-.PP
-.B int ares_init(ares_channel *\fIchannelptr\fP)
-.B int ares_init_options(ares_channel *\fIchannelptr\fP,
-.B 	struct ares_options *\fIoptions\fP, int \fIoptmask\fP)
-.PP
-.B cc file.c -lcares
+#include <ares.h>
+
+int ares_init(ares_channel *\fIchannelptr\fP)
 .fi
 .SH DESCRIPTION
-The \fBares_init\fP function initializes a communications channel for name
-service lookups.  If it returns successfully, \fBares_init\fP will set the
+The \fBares_init(3)\fP function initializes a communications channel for name
+service lookups.  If it returns successfully, \fBares_init(3)\fP will set the
 variable pointed to by \fIchannelptr\fP to a handle used to identify the name
-service channel.  The caller should invoke
-.BR ares_destroy (3)
-on the handle when the channel is no longer needed.
-.PP
-The \fBares_init_options\fP function also initializes a name service channel,
-with additional options useful for applications requiring more control over
-name service configuration. The \fIoptmask\fP parameter specifies which fields
-in the structure pointed to by \fIoptions\fP are set, as follows:
-.TP 18
-.B ARES_OPT_FLAGS
-.B int \fIflags\fP;
-.br
-Flags controlling the behavior of the resolver.  See below for a
-description of possible flag values.
-.TP 18
-.B ARES_OPT_TIMEOUT
-.B int \fItimeout\fP;
-.br
-The number of seconds each name server is given to respond to a query on the
-first try.  (After the first try, the timeout algorithm becomes more
-complicated, but scales linearly with the value of \fItimeout\fP.)  The
-default is five seconds. This option is being deprecated by
-\fIARES_OPT_TIMEOUTMS\fP starting in c-ares 1.5.2.
-.TP 18
-.B ARES_OPT_TIMEOUTMS
-.B int \fItimeout\fP;
-.br
-The number of milliseconds each name server is given to respond to a query on
-the first try.  (After the first try, the timeout algorithm becomes more
-complicated, but scales linearly with the value of \fItimeout\fP.)  The
-default is five seconds. Note that this option is specified with the same
-struct field as the former \fIARES_OPT_TIMEOUT\fP, it is but the option bits
-that tell c-ares how to interpret the number. This option was added in c-ares
-1.5.2.
-.TP 18
-.B ARES_OPT_TRIES
-.B int \fItries\fP;
-.br
-The number of tries the resolver will try contacting each name server
-before giving up.  The default is four tries.
-.TP 18
-.B ARES_OPT_NDOTS
-.B int \fIndots\fP;
-.br
-The number of dots which must be present in a domain name for it to be
-queried for "as is" prior to querying for it with the default domain
-extensions appended.  The default value is 1 unless set otherwise by
-resolv.conf or the RES_OPTIONS environment variable.
-.TP 18
-.B ARES_OPT_PORT
-.B unsigned short \fIport\fP;
-.br
-The port to use for queries (both TCP and UDP), in network byte order.
-The default value is 53 (in network byte order), the standard name
-service port.
-.TP 18
-.B ARES_OPT_SERVERS
-.B struct in_addr *\fIservers\fP;
-.br
-.B int \fInservers\fP;
-.br
-The list of IPv4 servers to contact, instead of the servers specified in
-resolv.conf or the local named. In order to allow specification of either
-IPv4 or IPv6 name servers, the
-.BR ares_set_servers(3)
-function must be used instead.
-.TP 18
-.B ARES_OPT_DOMAINS
-.B char **\fIdomains\fP;
-.br
-.B int \fIndomains\fP;
-.br
-The domains to search, instead of the domains specified in resolv.conf
-or the domain derived from the kernel hostname variable.
-.TP 18
-.B ARES_OPT_LOOKUPS
-.B char *\fIlookups\fP;
-.br
-The lookups to perform for host queries.
-.I lookups
-should be set to a string of the characters "b" or "f", where "b"
-indicates a DNS lookup and "f" indicates a lookup in the hosts file.
-.TP 18
-.B ARES_OPT_SOCK_STATE_CB
-.B void (*\fIsock_state_cb\fP)(void *data, int s, int read, int write);
-.br
-.B void *\fIsock_state_cb_data\fP;
-.br
-A callback function to be invoked when a socket changes state.
-.I s
-will be passed the socket whose state has changed;
-.I read
-will be set to true if the socket should listen for read events, and
-.I write
-will be set to true if the socket should listen for write events.
-The value of
-.I sock_state_cb_data
-will be passed as the
-.I data
-argument.
-.PP
-The
-.I flags
-field should be the bitwise or of some subset of the following values:
-.TP 23
-.B ARES_FLAG_USEVC
-Always use TCP queries (the "virtual circuit") instead of UDP
-queries.  Normally, TCP is only used if a UDP query yields a truncated
-result.
-.TP 23
-.B ARES_FLAG_PRIMARY
-Only query the first server in the list of servers to query.
-.TP 23
-.B ARES_FLAG_IGNTC
-If a truncated response to a UDP query is received, do not fall back
-to TCP; simply continue on with the truncated response.
-.TP 23
-.B ARES_FLAG_NORECURSE
-Do not set the "recursion desired" bit on outgoing queries, so that the name
-server being contacted will not try to fetch the answer from other servers if
-it doesn't know the answer locally. Be aware that ares will not do the
-recursion for you.  Recursion must be handled by the application calling ares
-if \fIARES_FLAG_NORECURSE\fP is set.
-.TP 23
-.B ARES_FLAG_STAYOPEN
-Do not close communications sockets when the number of active queries
-drops to zero.
-.TP 23
-.B ARES_FLAG_NOSEARCH
-Do not use the default search domains; only query hostnames as-is or
-as aliases.
-.TP 23
-.B ARES_FLAG_NOALIASES
-Do not honor the HOSTALIASES environment variable, which normally
-specifies a file of hostname translations.
-.TP 23
-.B ARES_FLAG_NOCHECKRESP
-Do not discard responses with the SERVFAIL, NOTIMP, or REFUSED
-response code or responses whose questions don't match the questions
-in the request.  Primarily useful for writing clients which might be
-used to test or debug name servers.
+service channel.  The caller should invoke \fIares_destroy(3)\fP on the handle
+when the channel is no longer needed.
+
+The \fIares_init_options(3)\fP function is provide to offer more init
+alternatives.
 .SH RETURN VALUES
-.I ares_init
-or
-.I ares_init_options
-can return any of the following values:
+\fIares_init(3)\fP can return any of the following values:
 .TP 14
 .B ARES_SUCCESS
 Initialization succeeded.
@@ -211,6 +68,7 @@ please see the
 .BR resolv.conf (5)
 manual page.
 .SH SEE ALSO
+.BR ares_init_options(3),
 .BR ares_destroy(3),
 .BR ares_dup(3),
 .BR ares_library_init(3),
diff --git a/ares_init.c b/ares_init.c
index 55d9327..f557947 100644
--- a/ares_init.c
+++ b/ares_init.c
@@ -112,7 +112,6 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options,
   ares_channel channel;
   int i;
   int status = ARES_SUCCESS;
-  int status2;
   struct timeval now;
 
 #ifdef CURLDEBUG
@@ -190,18 +189,17 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options,
    * precedence to lowest.
    */
 
-  if (status == ARES_SUCCESS) {
-    status = init_by_options(channel, options, optmask);
-    if (status != ARES_SUCCESS)
-      DEBUGF(fprintf(stderr, "Error: init_by_options failed: %s\n",
-                     ares_strerror(status)));
-  }
-  if (status == ARES_SUCCESS) {
-    status = init_by_environment(channel);
-    if (status != ARES_SUCCESS)
-      DEBUGF(fprintf(stderr, "Error: init_by_environment failed: %s\n",
-                     ares_strerror(status)));
+  status = init_by_options(channel, options, optmask);
+  if (status != ARES_SUCCESS) {
+    DEBUGF(fprintf(stderr, "Error: init_by_options failed: %s\n",
+                   ares_strerror(status)));
+    /* If we fail to apply user-specified options, fail the whole init process */
+    goto done;
   }
+  status = init_by_environment(channel);
+  if (status != ARES_SUCCESS)
+    DEBUGF(fprintf(stderr, "Error: init_by_environment failed: %s\n",
+                   ares_strerror(status)));
   if (status == ARES_SUCCESS) {
     status = init_by_resolv_conf(channel);
     if (status != ARES_SUCCESS)
@@ -213,13 +211,10 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options,
    * No matter what failed or succeeded, seed defaults to provide
    * useful behavior for things that we missed.
    */
-  status2 = init_by_defaults(channel);
-  if (status2 != ARES_SUCCESS) {
+  status = init_by_defaults(channel);
+  if (status != ARES_SUCCESS)
     DEBUGF(fprintf(stderr, "Error: init_by_defaults failed: %s\n",
                    ares_strerror(status)));
-    if (status == ARES_SUCCESS)
-      status = status2;
-  }
 
   /* Generate random key */
 
@@ -232,6 +227,7 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options,
                      ares_strerror(status)));
   }
 
+done:
   if (status != ARES_SUCCESS)
     {
       /* Something failed; clean up memory we may have allocated. */
@@ -350,8 +346,8 @@ int ares_save_options(ares_channel channel, struct ares_options *options,
   (*optmask) = (ARES_OPT_FLAGS|ARES_OPT_TRIES|ARES_OPT_NDOTS|
                 ARES_OPT_UDP_PORT|ARES_OPT_TCP_PORT|ARES_OPT_SOCK_STATE_CB|
                 ARES_OPT_SERVERS|ARES_OPT_DOMAINS|ARES_OPT_LOOKUPS|
-                ARES_OPT_SORTLIST|ARES_OPT_TIMEOUTMS) |
-    (channel->optmask & ARES_OPT_ROTATE);
+                ARES_OPT_SORTLIST|ARES_OPT_TIMEOUTMS);
+  (*optmask) |= (channel->rotate ? ARES_OPT_ROTATE : ARES_OPT_NOROTATE);
 
   /* Copy easy stuff */
   options->flags   = channel->flags;
@@ -447,6 +443,8 @@ static int init_by_options(ares_channel channel,
     channel->ndots = options->ndots;
   if ((optmask & ARES_OPT_ROTATE) && channel->rotate == -1)
     channel->rotate = 1;
+  if ((optmask & ARES_OPT_NOROTATE) && channel->rotate == -1)
+    channel->rotate = 0;
   if ((optmask & ARES_OPT_UDP_PORT) && channel->udp_port == -1)
     channel->udp_port = htons(options->udp_port);
   if ((optmask & ARES_OPT_TCP_PORT) && channel->tcp_port == -1)
@@ -520,13 +518,14 @@ static int init_by_options(ares_channel channel,
     }
 
   /* copy sortlist */
-  if ((optmask & ARES_OPT_SORTLIST) && (channel->nsort == -1) &&
-      (options->nsort>0)) {
-    channel->sortlist = ares_malloc(options->nsort * sizeof(struct apattern));
-    if (!channel->sortlist)
-      return ARES_ENOMEM;
-    for (i = 0; i < options->nsort; i++)
-      channel->sortlist[i] = options->sortlist[i];
+  if ((optmask & ARES_OPT_SORTLIST) && (channel->nsort == -1)) {
+    if (options->nsort > 0) {
+      channel->sortlist = ares_malloc(options->nsort * sizeof(struct apattern));
+      if (!channel->sortlist)
+        return ARES_ENOMEM;
+      for (i = 0; i < options->nsort; i++)
+        channel->sortlist[i] = options->sortlist[i];
+    }
     channel->nsort = options->nsort;
   }
 
@@ -1623,7 +1622,7 @@ static int config_lookup(ares_channel channel, const char *str,
   channel->lookups = ares_strdup(lookups);
   return (channel->lookups) ? ARES_SUCCESS : ARES_ENOMEM;
 }
-#endif  /* !WIN32 & !WATT32 & !ANDROID & !__ANDROID__ */
+#endif  /* !WIN32 & !WATT32 & !ANDROID & !__ANDROID__ & !CARES_USE_LIBRESOLV */
 
 #ifndef WATT32
 static int config_nameserver(struct server_state **servers, int *nservers,
diff --git a/ares_init.pdf b/ares_init.pdf
index 4542f9d..c0e9268 100644
--- a/ares_init.pdf
+++ b/ares_init.pdf
diff --git a/ares_init_options.3 b/ares_init_options.3
index 27b149b..ff677c9 100644
--- a/ares_init_options.3
+++ b/ares_init_options.3
@@ -1 +1,262 @@
-.so man3/ares_init.3
+.\"
+.\" Copyright 1998 by the Massachusetts Institute of Technology.
+.\" Copyright (C) 2004-2010 by Daniel Stenberg
+.\"
+.\" Permission to use, copy, modify, and distribute this
+.\" software and its documentation for any purpose and without
+.\" fee is hereby granted, provided that the above copyright
+.\" notice appear in all copies and that both that copyright
+.\" notice and this permission notice appear in supporting
+.\" documentation, and that the name of M.I.T. not be used in
+.\" advertising or publicity pertaining to distribution of the
+.\" software without specific, written prior permission.
+.\" M.I.T. makes no representations about the suitability of
+.\" this software for any purpose.  It is provided "as is"
+.\" without express or implied warranty.
+.\"
+.TH ARES_INIT 3 "5 March 2010"
+.SH NAME
+ares_init_options \- Initialize a resolver channel
+.SH SYNOPSIS
+.nf
+#include <ares.h>
+
+int ares_init_options(ares_channel *\fIchannelptr\fP,
+                      struct ares_options *\fIoptions\fP,
+                      int \fIoptmask\fP)
+.fi
+.SH DESCRIPTION
+The \fBares_init_options(3)\fP function initializes a communications channel
+for name service lookups.  If it returns successfully,
+\fBares_init_options(3)\fP will set the variable pointed to by
+\fIchannelptr\fP to a handle used to identify the name service channel.  The
+caller should invoke \fIares_destroy(3)\fP on the handle when the channel is
+no longer needed.
+
+The \fIoptmask\fP parameter generally specifies which fields in the structure pointed to
+by \fIoptions\fP are set, as follows:
+.TP 18
+.B ARES_OPT_FLAGS
+.B int \fIflags\fP;
+.br
+Flags controlling the behavior of the resolver.  See below for a
+description of possible flag values.
+.TP 18
+.B ARES_OPT_TIMEOUT
+.B int \fItimeout\fP;
+.br
+The number of seconds each name server is given to respond to a query on the
+first try.  (After the first try, the timeout algorithm becomes more
+complicated, but scales linearly with the value of \fItimeout\fP.)  The
+default is five seconds. This option is being deprecated by
+\fIARES_OPT_TIMEOUTMS\fP starting in c-ares 1.5.2.
+.TP 18
+.B ARES_OPT_TIMEOUTMS
+.B int \fItimeout\fP;
+.br
+The number of milliseconds each name server is given to respond to a query on
+the first try.  (After the first try, the timeout algorithm becomes more
+complicated, but scales linearly with the value of \fItimeout\fP.)  The
+default is five seconds. Note that this option is specified with the same
+struct field as the former \fIARES_OPT_TIMEOUT\fP, it is but the option bits
+that tell c-ares how to interpret the number. This option was added in c-ares
+1.5.2.
+.TP 18
+.B ARES_OPT_TRIES
+.B int \fItries\fP;
+.br
+The number of tries the resolver will try contacting each name server
+before giving up.  The default is four tries.
+.TP 18
+.B ARES_OPT_NDOTS
+.B int \fIndots\fP;
+.br
+The number of dots which must be present in a domain name for it to be
+queried for "as is" prior to querying for it with the default domain
+extensions appended.  The default value is 1 unless set otherwise by
+resolv.conf or the RES_OPTIONS environment variable.
+.TP 18
+.B ARES_OPT_UDP_PORT
+.B unsigned short \fIudp_port\fP;
+.br
+The port to use for queries over UDP, in network byte order.
+The default value is 53 (in network byte order), the standard name
+service port.
+.TP 18
+.B ARES_OPT_TCP_PORT
+.B unsigned short \fItcp_port\fP;
+.br
+The port to use for queries over TCP, in network byte order.
+The default value is 53 (in network byte order), the standard name
+service port.
+.TP 18
+.B ARES_OPT_SERVERS
+.B struct in_addr *\fIservers\fP;
+.br
+.B int \fInservers\fP;
+.br
+The list of IPv4 servers to contact, instead of the servers specified in
+resolv.conf or the local named. In order to allow specification of either
+IPv4 or IPv6 name servers, the
+.BR ares_set_servers(3)
+function must be used instead.
+.TP 18
+.B ARES_OPT_DOMAINS
+.B char **\fIdomains\fP;
+.br
+.B int \fIndomains\fP;
+.br
+The domains to search, instead of the domains specified in resolv.conf
+or the domain derived from the kernel hostname variable.
+.TP 18
+.B ARES_OPT_LOOKUPS
+.B char *\fIlookups\fP;
+.br
+The lookups to perform for host queries.
+.I lookups
+should be set to a string of the characters "b" or "f", where "b"
+indicates a DNS lookup and "f" indicates a lookup in the hosts file.
+.TP 18
+.B ARES_OPT_SOCK_STATE_CB
+.B void (*\fIsock_state_cb\fP)(void *data, int s, int read, int write);
+.br
+.B void *\fIsock_state_cb_data\fP;
+.br
+A callback function to be invoked when a socket changes state.
+.I s
+will be passed the socket whose state has changed;
+.I read
+will be set to true if the socket should listen for read events, and
+.I write
+will be set to true if the socket should listen for write events.
+The value of
+.I sock_state_cb_data
+will be passed as the
+.I data
+argument.
+.TP 18
+.B ARES_OPT_SORTLIST
+.B struct apattern *\fIsortlist\fP;
+.br
+.B int \fInsort\fP;
+.br
+A list of IP address ranges that specifies the order of preference that
+results from \fIares_gethostbyname\fP should be returned in.  Note that
+this can only be used with a sortlist retrieved via
+\fBares_save_options(3)\fP (because
+.B struct apattern
+is opaque); to set a fresh sort list, use \fBares_set_sortlist(3)\fP.
+.TP 18
+.B ARES_OPT_SOCK_SNDBUF
+.B int \fIsocket_send_buffer_size\fP;
+.br
+The send buffer size to set for the socket.
+.TP 18
+.B ARES_OPT_SOCK_RCVBUF
+.B int \fIsocket_receive_buffer_size\fP;
+.br
+The receive buffer size to set for the socket.
+.TP 18
+.B ARES_OPT_EDNSPSZ
+.B int \fIednspsz\fP;
+.br
+The message size to be advertized in EDNS; only takes effect if the
+.B ARES_FLAG_EDNS
+flag is set.
+.br
+.PP
+The \fIoptmask\fP parameter also includes options without a corresponding
+field in the
+.B ares_options
+structure, as follows:
+.TP 23
+.B ARES_OPT_ROTATE
+Perform round-robin selection of the nameservers configured for the channel
+for each resolution.
+.TP 23
+.B ARES_OPT_NOROTATE
+Do not perform round-robin nameserver selection; always use the list of
+nameservers in the same order.
+.PP
+The
+.I flags
+field should be the bitwise or of some subset of the following values:
+.TP 23
+.B ARES_FLAG_USEVC
+Always use TCP queries (the "virtual circuit") instead of UDP
+queries.  Normally, TCP is only used if a UDP query yields a truncated
+result.
+.TP 23
+.B ARES_FLAG_PRIMARY
+Only query the first server in the list of servers to query.
+.TP 23
+.B ARES_FLAG_IGNTC
+If a truncated response to a UDP query is received, do not fall back
+to TCP; simply continue on with the truncated response.
+.TP 23
+.B ARES_FLAG_NORECURSE
+Do not set the "recursion desired" bit on outgoing queries, so that the name
+server being contacted will not try to fetch the answer from other servers if
+it doesn't know the answer locally. Be aware that ares will not do the
+recursion for you.  Recursion must be handled by the application calling ares
+if \fIARES_FLAG_NORECURSE\fP is set.
+.TP 23
+.B ARES_FLAG_STAYOPEN
+Do not close communications sockets when the number of active queries
+drops to zero.
+.TP 23
+.B ARES_FLAG_NOSEARCH
+Do not use the default search domains; only query hostnames as-is or
+as aliases.
+.TP 23
+.B ARES_FLAG_NOALIASES
+Do not honor the HOSTALIASES environment variable, which normally
+specifies a file of hostname translations.
+.TP 23
+.B ARES_FLAG_NOCHECKRESP
+Do not discard responses with the SERVFAIL, NOTIMP, or REFUSED
+response code or responses whose questions don't match the questions
+in the request.  Primarily useful for writing clients which might be
+used to test or debug name servers.
+.TP 23
+.B ARES_FLAG_EDNS
+Include an EDNS pseudo-resource record (RFC 2671) in generated requests.
+.SH RETURN VALUES
+\fBares_init_options(3)\fP can return any of the following values:
+.TP 14
+.B ARES_SUCCESS
+Initialization succeeded.
+.TP 14
+.B ARES_EFILE
+A configuration file could not be read.
+.TP 14
+.B ARES_ENOMEM
+The process's available memory was exhausted.
+.TP 14
+.B ARES_ENOTINITIALIZED
+c-ares library initialization not yet performed.
+.SH NOTES
+When initializing from
+.B /etc/resolv.conf,
+\fBares_init_options(3)\fP reads the \fIdomain\fP and \fIsearch\fP directives
+to allow lookups of short names relative to the domains specified. The
+\fIdomain\fP and \fIsearch\fP directives override one another. If more that
+one instance of either \fIdomain\fP or \fIsearch\fP directives is specified,
+the last occurrence wins. For more information, please see the
+.BR resolv.conf (5)
+manual page.
+.SH SEE ALSO
+.BR ares_init(3),
+.BR ares_destroy(3),
+.BR ares_dup(3),
+.BR ares_library_init(3),
+.BR ares_save_options(3),
+.BR ares_set_servers(3),
+.BR ares_set_sortlist(3)
+.SH AUTHOR
+Greg Hudson, MIT Information Systems
+.br
+Copyright 1998 by the Massachusetts Institute of Technology.
+.br
+Copyright (C) 2004-2010 by Daniel Stenberg.
+
diff --git a/ares_init_options.pdf b/ares_init_options.pdf
index c9f47e9..0e6065d 100644
--- a/ares_init_options.pdf
+++ b/ares_init_options.pdf
diff --git a/ares_ipv6.h b/ares_ipv6.h
index 1830076..b0017f1 100644
--- a/ares_ipv6.h
+++ b/ares_ipv6.h
@@ -47,16 +47,16 @@ struct addrinfo
 #endif
 
 #ifndef NS_IN6ADDRSZ
-#if SIZEOF_STRUCT_IN6_ADDR == 0
+#ifndef HAVE_STRUCT_IN6_ADDR
 /* We cannot have it set to zero, so we pick a fixed value here */
 #define NS_IN6ADDRSZ 16
 #else
-#define NS_IN6ADDRSZ SIZEOF_STRUCT_IN6_ADDR
+#define NS_IN6ADDRSZ sizeof(struct in6_addr)
 #endif
 #endif
 
 #ifndef NS_INADDRSZ
-#define NS_INADDRSZ SIZEOF_STRUCT_IN_ADDR
+#define NS_INADDRSZ sizeof(struct in_addr)
 #endif
 
 #ifndef NS_INT16SZ
diff --git a/ares_library_cleanup.pdf b/ares_library_cleanup.pdf
index e99b386..eb1ba3d 100644
--- a/ares_library_cleanup.pdf
+++ b/ares_library_cleanup.pdf
diff --git a/ares_library_init.3 b/ares_library_init.3
index 8959a80..4734f92 100644
--- a/ares_library_init.3
+++ b/ares_library_init.3
@@ -19,12 +19,14 @@
 ares_library_init \- c-ares library initialization
 .SH SYNOPSIS
 .nf
-.B #include <ares.h>
-.PP
-.B int ares_library_init(int \fIflags\fP)
-.B int ares_library_init_mem(int \fIflags\fP, void *(*\fIamalloc\fP)(size_t), void (*\fIafree\fP)(void *))
-.PP
-.B cc file.c -lcares
+#include <ares.h>
+
+int ares_library_init(int \fIflags\fP)
+
+int ares_library_init_mem(int \fIflags\fP,
+                          void *(*\fIamalloc\fP)(size_t),
+                          void (*\fIafree\fP)(void *ptr),
+                          void (*\fIarealloc\fP)(void *ptr, size_t size))
 .fi
 .SH DESCRIPTION
 .PP
@@ -54,9 +56,9 @@ familiar with it and trying to control some internal c-ares feature.
 .PP
 The
 .B ares_library_init_mem
-function allows the caller to provide memory management
-functions that the c-ares library will be use instead of \fImalloc(3)\fP and
-\fIfree(3)\fP.
+function allows the caller to provide memory management functions that the
+c-ares library will be use instead of \fImalloc(3)\fP, \fIfree(3)\fP and
+\fIrealloc(3)\fP.
 .PP
 .B This function is not thread safe.
 You have to call it once the program has started, but this call must be done
diff --git a/ares_library_init.c b/ares_library_init.c
index c2bfb09..c885a16 100644
--- a/ares_library_init.c
+++ b/ares_library_init.c
@@ -152,6 +152,7 @@ void ares_library_cleanup(void)
 
   ares_init_flags = ARES_LIB_INIT_NONE;
   ares_malloc = malloc;
+  ares_realloc = realloc;
   ares_free = free;
 }
 
@@ -164,5 +165,3 @@ int ares_library_initialized(void)
 #endif
   return ARES_SUCCESS;
 }
-
-
diff --git a/ares_library_init.pdf b/ares_library_init.pdf
index 57f714b..057b569 100644
--- a/ares_library_init.pdf
+++ b/ares_library_init.pdf
diff --git a/ares_mkquery.pdf b/ares_mkquery.pdf
index 06e51b0..3909a28 100644
--- a/ares_mkquery.pdf
+++ b/ares_mkquery.pdf
diff --git a/ares_nowarn.c b/ares_nowarn.c
index d4bd272..7f9035c 100644
--- a/ares_nowarn.c
+++ b/ares_nowarn.c
@@ -40,42 +40,22 @@
 
 #include "ares_nowarn.h"
 
-#if (SIZEOF_SHORT == 2)
+#ifndef HAVE_LIMITS_H
+/* systems without <limits.h> we guess have 16 bit shorts, 32bit ints and
+   32bit longs */
 #  define CARES_MASK_SSHORT  0x7FFF
 #  define CARES_MASK_USHORT  0xFFFF
-#elif (SIZEOF_SHORT == 4)
-#  define CARES_MASK_SSHORT  0x7FFFFFFF
-#  define CARES_MASK_USHORT  0xFFFFFFFF
-#elif (SIZEOF_SHORT == 8)
-#  define CARES_MASK_SSHORT  0x7FFFFFFFFFFFFFFF
-#  define CARES_MASK_USHORT  0xFFFFFFFFFFFFFFFF
-#else
-#  error "SIZEOF_SHORT not defined"
-#endif
-
-#if (SIZEOF_INT == 2)
-#  define CARES_MASK_SINT  0x7FFF
-#  define CARES_MASK_UINT  0xFFFF
-#elif (SIZEOF_INT == 4)
-#  define CARES_MASK_SINT  0x7FFFFFFF
-#  define CARES_MASK_UINT  0xFFFFFFFF
-#elif (SIZEOF_INT == 8)
-#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFF
-#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFF
-#elif (SIZEOF_INT == 16)
-#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
-#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
-#else
-#  error "SIZEOF_INT not defined"
-#endif
-
-#ifndef HAVE_LIMITS_H
-/* systems without <limits.h> we guess have 32 bit longs */
-#define CARES_MASK_SLONG  0x7FFFFFFFL
-#define CARES_MASK_ULONG  0xFFFFFFFFUL
+#  define CARES_MASK_SINT    0x7FFFFFFF
+#  define CARES_MASK_UINT    0xFFFFFFFF
+#  define CARES_MASK_SLONG   0x7FFFFFFFL
+#  define CARES_MASK_ULONG   0xFFFFFFFFUL
 #else
-#define CARES_MASK_ULONG  ULONG_MAX
-#define CARES_MASK_SLONG  LONG_MAX
+#  define CARES_MASK_SSHORT  SHRT_MAX
+#  define CARES_MASK_USHORT  USHRT_MAX
+#  define CARES_MASK_SINT    INT_MAX
+#  define CARES_MASK_UINT    UINT_MAX
+#  define CARES_MASK_SLONG   LONG_MAX
+#  define CARES_MASK_ULONG   ULONG_MAX
 #endif
 
 /*
diff --git a/ares_parse_a_reply.pdf b/ares_parse_a_reply.pdf
index 5241fab..71937c7 100644
--- a/ares_parse_a_reply.pdf
+++ b/ares_parse_a_reply.pdf
diff --git a/ares_parse_aaaa_reply.pdf b/ares_parse_aaaa_reply.pdf
index 2b053ac..b436426 100644
--- a/ares_parse_aaaa_reply.pdf
+++ b/ares_parse_aaaa_reply.pdf
diff --git a/ares_parse_mx_reply.pdf b/ares_parse_mx_reply.pdf
index df815d9..83945ed 100644
--- a/ares_parse_mx_reply.pdf
+++ b/ares_parse_mx_reply.pdf
diff --git a/ares_parse_ns_reply.pdf b/ares_parse_ns_reply.pdf
index 0b52194..0cb2fdb 100644
--- a/ares_parse_ns_reply.pdf
+++ b/ares_parse_ns_reply.pdf
diff --git a/ares_parse_ptr_reply.pdf b/ares_parse_ptr_reply.pdf
index 6e6d974..7b919a4 100644
--- a/ares_parse_ptr_reply.pdf
+++ b/ares_parse_ptr_reply.pdf
diff --git a/ares_parse_soa_reply.pdf b/ares_parse_soa_reply.pdf
index 416f210..8e573dc 100644
--- a/ares_parse_soa_reply.pdf
+++ b/ares_parse_soa_reply.pdf
diff --git a/ares_parse_srv_reply.pdf b/ares_parse_srv_reply.pdf
index 01822ef..5bab37b 100644
--- a/ares_parse_srv_reply.pdf
+++ b/ares_parse_srv_reply.pdf
diff --git a/ares_parse_txt_reply.pdf b/ares_parse_txt_reply.pdf
index a81ff25..670257b 100644
--- a/ares_parse_txt_reply.pdf
+++ b/ares_parse_txt_reply.pdf
diff --git a/ares_process.c b/ares_process.c
index 0325f51..1d1e7b8 100644
--- a/ares_process.c
+++ b/ares_process.c
@@ -391,8 +391,7 @@ static void read_tcp_data(ares_channel channel, fd_set *read_fds,
                */
               process_answer(channel, server->tcp_buffer, server->tcp_length,
                              i, 1, now);
-              if (server->tcp_buffer)
-                ares_free(server->tcp_buffer);
+              ares_free(server->tcp_buffer);
               server->tcp_buffer = NULL;
               server->tcp_lenbuf_pos = 0;
               server->tcp_buffer_pos = 0;
diff --git a/ares_process.pdf b/ares_process.pdf
index c1b65f0..0620ea3 100644
--- a/ares_process.pdf
+++ b/ares_process.pdf
diff --git a/ares_query.pdf b/ares_query.pdf
index 2d0ae6f..410a178 100644
--- a/ares_query.pdf
+++ b/ares_query.pdf
diff --git a/ares_rules.h b/ares_rules.h
index 44f08f8..e617fdc 100644
--- a/ares_rules.h
+++ b/ares_rules.h
@@ -73,11 +73,6 @@
    Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_is_missing
 #endif
 
-#ifndef CARES_SIZEOF_ARES_SOCKLEN_T
-#  error "CARES_SIZEOF_ARES_SOCKLEN_T definition is missing!"
-   Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_is_missing
-#endif
-
 /*
  * Macros private to this header file.
  */
@@ -94,7 +89,7 @@
 
 typedef char
   __cares_rule_02__
-    [CareschkszEQ(ares_socklen_t, CARES_SIZEOF_ARES_SOCKLEN_T)];
+    [CareschkszEQ(ares_socklen_t, sizeof(CARES_TYPEOF_ARES_SOCKLEN_T))];
 
 /*
  * Verify at compile time that the size of ares_socklen_t as reported
diff --git a/ares_save_options.3 b/ares_save_options.3
index db4055c..bddae04 100644
--- a/ares_save_options.3
+++ b/ares_save_options.3
@@ -40,7 +40,7 @@ to free any associated memory.
 can return any of the following values:
 .TP 15
 .B ARES_SUCCESS
-The channel data was successfuly stored
+The channel data was successfully stored
 .TP 15
 .B ARES_ENOMEM
 The memory was exhausted
diff --git a/ares_save_options.pdf b/ares_save_options.pdf
index d373063..d95cdd8 100644
--- a/ares_save_options.pdf
+++ b/ares_save_options.pdf
diff --git a/ares_search.pdf b/ares_search.pdf
index c0d23e2..43258e6 100644
--- a/ares_search.pdf
+++ b/ares_search.pdf
diff --git a/ares_send.pdf b/ares_send.pdf
index 06d27f6..222353b 100644
--- a/ares_send.pdf
+++ b/ares_send.pdf
diff --git a/ares_set_local_dev.pdf b/ares_set_local_dev.pdf
index 5073f99..afbd794 100644
--- a/ares_set_local_dev.pdf
+++ b/ares_set_local_dev.pdf
diff --git a/ares_set_local_ip4.pdf b/ares_set_local_ip4.pdf
index ec7101d..02452fb 100644
--- a/ares_set_local_ip4.pdf
+++ b/ares_set_local_ip4.pdf
diff --git a/ares_set_local_ip6.pdf b/ares_set_local_ip6.pdf
index 5dcead0..fe8aa2c 100644
--- a/ares_set_local_ip6.pdf
+++ b/ares_set_local_ip6.pdf
diff --git a/ares_set_servers.3 b/ares_set_servers.3
index 4948f4e..a48c11c 100644
--- a/ares_set_servers.3
+++ b/ares_set_servers.3
@@ -60,7 +60,7 @@ IPv4-only name server usage.
 may return any of the following values:
 .TP 15
 .B ARES_SUCCESS
-The name servers configuration was successfuly initialized.
+The name servers configuration was successfully initialized.
 .TP 15
 .B ARES_ENOMEM
 The process's available memory was exhausted.
diff --git a/ares_set_servers.pdf b/ares_set_servers.pdf
index 03b33a0..3849f0f 100644
--- a/ares_set_servers.pdf
+++ b/ares_set_servers.pdf
diff --git a/ares_set_servers_csv.3 b/ares_set_servers_csv.3
index 5c16efb..8fd2511 100644
--- a/ares_set_servers_csv.3
+++ b/ares_set_servers_csv.3
@@ -43,7 +43,7 @@ particular nameserver.
 This function may return any of the following values:
 .TP 15
 .B ARES_SUCCESS
-The name servers configuration was successfuly initialized.
+The name servers configuration was successfully initialized.
 .TP 15
 .B ARES_ENOMEM
 The process's available memory was exhausted.
diff --git a/ares_set_servers_csv.pdf b/ares_set_servers_csv.pdf
index 7cfb60b..8e64a79 100644
--- a/ares_set_servers_csv.pdf
+++ b/ares_set_servers_csv.pdf
diff --git a/ares_set_servers_ports.pdf b/ares_set_servers_ports.pdf
index 8138575..dbba9ea 100644
--- a/ares_set_servers_ports.pdf
+++ b/ares_set_servers_ports.pdf
diff --git a/ares_set_servers_ports_csv.pdf b/ares_set_servers_ports_csv.pdf
index 6ce6fec..e872c38 100644
--- a/ares_set_servers_ports_csv.pdf
+++ b/ares_set_servers_ports_csv.pdf
diff --git a/ares_set_socket_callback.pdf b/ares_set_socket_callback.pdf
index 5261388..53fcad6 100644
--- a/ares_set_socket_callback.pdf
+++ b/ares_set_socket_callback.pdf
diff --git a/ares_set_socket_configure_callback.pdf b/ares_set_socket_configure_callback.pdf
index f2e0b42..9df47b1 100644
--- a/ares_set_socket_configure_callback.pdf
+++ b/ares_set_socket_configure_callback.pdf
diff --git a/ares_set_sortlist.3 b/ares_set_sortlist.3
index 3180df0..24a9790 100644
--- a/ares_set_sortlist.3
+++ b/ares_set_sortlist.3
@@ -39,7 +39,7 @@ with the ones given in the configuration string.
 may return any of the following values:
 .TP 15
 .B ARES_SUCCESS
-The sortlist configuration was successfuly initialized.
+The sortlist configuration was successfully initialized.
 .TP 15
 .B ARES_ENOMEM
 The process's available memory was exhausted.
diff --git a/ares_set_sortlist.pdf b/ares_set_sortlist.pdf
index 31cd723..d46439b 100644
--- a/ares_set_sortlist.pdf
+++ b/ares_set_sortlist.pdf
diff --git a/ares_strerror.pdf b/ares_strerror.pdf
index ae8df1b..f55fc80 100644
--- a/ares_strerror.pdf
+++ b/ares_strerror.pdf
diff --git a/ares_timeout.pdf b/ares_timeout.pdf
index 169a958..1d1e43f 100644
--- a/ares_timeout.pdf
+++ b/ares_timeout.pdf
diff --git a/ares_version.h b/ares_version.h
index 38e9e0d..92c8584 100644
--- a/ares_version.h
+++ b/ares_version.h
@@ -3,15 +3,15 @@
 #define ARES__VERSION_H
 
 /* This is the global package copyright */
-#define ARES_COPYRIGHT "2004 - 2013 Daniel Stenberg, <daniel@haxx.se>."
+#define ARES_COPYRIGHT "2004 - 2016 Daniel Stenberg, <daniel@haxx.se>."
 
 #define ARES_VERSION_MAJOR 1
-#define ARES_VERSION_MINOR 11
+#define ARES_VERSION_MINOR 12
 #define ARES_VERSION_PATCH 0
 #define ARES_VERSION ((ARES_VERSION_MAJOR<<16)|\
                        (ARES_VERSION_MINOR<<8)|\
                        (ARES_VERSION_PATCH))
-#define ARES_VERSION_STR "1.11.0"
+#define ARES_VERSION_STR "1.12.0"
 
 #if (ARES_VERSION >= 0x010700)
 #  define CARES_HAVE_ARES_LIBRARY_INIT 1
diff --git a/ares_version.pdf b/ares_version.pdf
index 3054e2d..a4b1461 100644
--- a/ares_version.pdf
+++ b/ares_version.pdf
diff --git a/cares.rc b/cares.rc
index 50a5e8e..76ec06c 100644
--- a/cares.rc
+++ b/cares.rc
@@ -1,5 +1,5 @@
 
-/* Copyright (C) 2009 by Daniel Stenberg
+/* Copyright (C) 2009-2016 by Daniel Stenberg
  *
  * Permission to use, copy, modify, and distribute this
  * software and its documentation for any purpose and without
@@ -39,7 +39,7 @@ BEGIN
   BEGIN
     BLOCK "040904b0"
     BEGIN
-      VALUE "CompanyName",      "The c-ares library, http://c-ares.haxx.se/\0"
+      VALUE "CompanyName",      "The c-ares library, https://c-ares.haxx.se/\0"
 #if defined(DEBUGBUILD) || defined(_DEBUG)
       VALUE "FileDescription",  "c-ares Debug Shared Library\0"
       VALUE "FileVersion",      ARES_VERSION_STR "\0"
@@ -54,7 +54,7 @@ BEGIN
       VALUE "ProductName",      "The c-ares library\0"
       VALUE "ProductVersion",   ARES_VERSION_STR "\0"
       VALUE "LegalCopyright",   "© " ARES_COPYRIGHT "\0"
-      VALUE "License",          "http://c-ares.haxx.se/license.html\0"
+      VALUE "License",          "https://c-ares.haxx.se/license.html\0"
     END
   END
 
diff --git a/config-dos.h b/config-dos.h
index f80ca2c..b895987 100644
--- a/config-dos.h
+++ b/config-dos.h
@@ -32,9 +32,6 @@
 #define NEED_MALLOC_H          1
 
 #define RETSIGTYPE             void
-#define SIZEOF_INT             4
-#define SIZEOF_SHORT           2
-#define SIZEOF_SIZE_T          4
 #define TIME_WITH_SYS_TIME     1
 
 /* Qualifiers for send(), recv(), recvfrom() and getnameinfo(). */
diff --git a/config-win32.h b/config-win32.h
index 374cd9a..dd95525 100644
--- a/config-win32.h
+++ b/config-win32.h
@@ -234,19 +234,6 @@
 /*                            TYPE SIZES                            */
 /* ---------------------------------------------------------------- */
 
-/* Define to the size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* Define to the size of `short', as computed by sizeof. */
-#define SIZEOF_SHORT 2
-
-/* Define to the size of `size_t', as computed by sizeof. */
-#if defined(_WIN64)
-#  define SIZEOF_SIZE_T 8
-#else
-#  define SIZEOF_SIZE_T 4
-#endif
-
 /* ---------------------------------------------------------------- */
 /*                          STRUCT RELATED                          */
 /* ---------------------------------------------------------------- */
diff --git a/configure b/configure
index 96aa0c0..6aa90cf 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for c-ares 1.11.0.
+# Generated by GNU Autoconf 2.69 for c-ares 1.12.0.
 #
 # Report bugs to <c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares>.
 #
@@ -824,8 +824,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='c-ares'
 PACKAGE_TARNAME='c-ares'
-PACKAGE_VERSION='1.11.0'
-PACKAGE_STRING='c-ares 1.11.0'
+PACKAGE_VERSION='1.12.0'
+PACKAGE_STRING='c-ares 1.12.0'
 PACKAGE_BUGREPORT='c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares'
 PACKAGE_URL=''
 
@@ -891,6 +891,7 @@ CARES_LT_SHLIB_USE_NO_UNDEFINED_FALSE
 CARES_LT_SHLIB_USE_NO_UNDEFINED_TRUE
 CARES_LT_SHLIB_USE_VERSION_INFO_FALSE
 CARES_LT_SHLIB_USE_VERSION_INFO_TRUE
+CXXCPP
 LT_SYS_LIBRARY_PATH
 OTOOL64
 OTOOL
@@ -910,6 +911,9 @@ LIBTOOL
 OBJDUMP
 DLLTOOL
 AS
+am__fastdepCXX_FALSE
+am__fastdepCXX_TRUE
+CXXDEPMODE
 am__fastdepCC_FALSE
 am__fastdepCC_TRUE
 CCDEPMODE
@@ -940,6 +944,10 @@ VERSION
 PACKAGE
 CYGPATH_W
 am__isrc
+HAVE_CXX11
+ac_ct_CXX
+CXXFLAGS
+CXX
 CPP
 OBJEXT
 EXEEXT
@@ -1045,6 +1053,7 @@ enable_libtool_lock
 enable_libgcc
 with_random
 enable_nonblocking
+enable_tests
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1055,7 +1064,11 @@ LDFLAGS
 LIBS
 CPPFLAGS
 CPP
-LT_SYS_LIBRARY_PATH'
+CXX
+CXXFLAGS
+CCC
+LT_SYS_LIBRARY_PATH
+CXXCPP'
 ac_subdirs_all='test'
 
 # Initialize some variables set by options.
@@ -1606,7 +1619,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures c-ares 1.11.0 to adapt to many kinds of systems.
+\`configure' configures c-ares 1.12.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1677,7 +1690,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of c-ares 1.11.0:";;
+     short | recursive ) echo "Configuration of c-ares 1.12.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1721,6 +1734,7 @@ Optional Features:
   --enable-libgcc         use libgcc when linking
   --enable-nonblocking    Enable non-blocking communications
   --disable-nonblocking   Disable non-blocking communications
+  --enable-tests          build test suite
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1745,8 +1759,11 @@ Some influential environment variables:
   CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
   CPP         C preprocessor
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
   LT_SYS_LIBRARY_PATH
               User-defined run-time library search path.
+  CXXCPP      C++ preprocessor
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -1814,7 +1831,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-c-ares configure 1.11.0
+c-ares configure 1.12.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1903,6 +1920,44 @@ fi
 
 } # ac_fn_c_try_cpp
 
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -2073,6 +2128,89 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_func
 
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
 # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
 # -------------------------------------------------------
 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
@@ -2216,183 +2354,6 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_type
 
-# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
-# --------------------------------------------
-# Tries to find the compile-time value of EXPR in a program that includes
-# INCLUDES, setting VAR accordingly. Returns whether the value could be
-# computed
-ac_fn_c_compute_int ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if test "$cross_compiling" = yes; then
-    # Depending upon the size, compute the lo and hi bounds.
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int main (void)
-{
-static int test_array [1 - 2 * !(($2) >= 0)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_lo=0 ac_mid=0
-  while :; do
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int main (void)
-{
-static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=$ac_mid; break
-else
-  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
-			if test $ac_lo -le $ac_mid; then
-			  ac_lo= ac_hi=
-			  break
-			fi
-			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int main (void)
-{
-static int test_array [1 - 2 * !(($2) < 0)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=-1 ac_mid=-1
-  while :; do
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int main (void)
-{
-static int test_array [1 - 2 * !(($2) >= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_lo=$ac_mid; break
-else
-  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
-			if test $ac_mid -le $ac_hi; then
-			  ac_lo= ac_hi=
-			  break
-			fi
-			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-else
-  ac_lo= ac_hi=
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-# Binary search between lo and hi bounds.
-while test "x$ac_lo" != "x$ac_hi"; do
-  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int main (void)
-{
-static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=$ac_mid
-else
-  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-done
-case $ac_lo in #((
-?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
-'') ac_retval=1 ;;
-esac
-  else
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-static long int longval () { return $2; }
-static unsigned long int ulongval () { return $2; }
-#include <stdio.h>
-#include <stdlib.h>
-int main (void)
-{
-
-  FILE *f = fopen ("conftest.val", "w");
-  if (! f)
-    return 1;
-  if (($2) < 0)
-    {
-      long int i = longval ();
-      if (i != ($2))
-	return 1;
-      fprintf (f, "%ld", i);
-    }
-  else
-    {
-      unsigned long int i = ulongval ();
-      if (i != ($2))
-	return 1;
-      fprintf (f, "%lu", i);
-    }
-  /* Do not output a trailing newline, as this causes \r\n confusion
-     on some platforms.  */
-  return ferror (f) || fclose (f) != 0;
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
-else
-  ac_retval=1
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-rm -f conftest.val
-
-  fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_compute_int
-
 # ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
 # ----------------------------------------------------
 # Tries to find if the field MEMBER exists in type AGGR, after including
@@ -2451,7 +2412,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by c-ares $as_me 1.11.0, which was
+It was created by c-ares $as_me 1.12.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -5126,6 +5087,444 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+    ax_cxx_compile_cxx11_required=false
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+  ac_success=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features by default" >&5
+$as_echo_n "checking whether $CXX supports C++11 features by default... " >&6; }
+if ${ax_cv_cxx_compile_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+    struct Base {
+    virtual void f() {}
+    };
+    struct Child : public Base {
+    virtual void f() override {}
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);
+
+    auto d = a;
+    auto l = [](){};
+
+    // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
+    // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function because of this
+    namespace test_template_alias_sfinae {
+        struct foo {};
+
+        template<typename T>
+        using member = typename T::member_type;
+
+        template<typename T>
+        void func(...) {}
+
+        template<typename T>
+        void func(member<T>*) {}
+
+        void test();
+
+        void test() {
+            func<foo>(0);
+        }
+    }
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ax_cv_cxx_compile_cxx11=yes
+else
+  ax_cv_cxx_compile_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cxx_compile_cxx11" >&5
+$as_echo "$ax_cv_cxx_compile_cxx11" >&6; }
+  if test x$ax_cv_cxx_compile_cxx11 = xyes; then
+    ac_success=yes
+  fi
+
+
+
+    if test x$ac_success = xno; then
+    for switch in -std=c++11 -std=c++0x; do
+      cachevar=`$as_echo "ax_cv_cxx_compile_cxx11_$switch" | $as_tr_sh`
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features with $switch" >&5
+$as_echo_n "checking whether $CXX supports C++11 features with $switch... " >&6; }
+if eval \${$cachevar+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_CXXFLAGS="$CXXFLAGS"
+         CXXFLAGS="$CXXFLAGS $switch"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+    struct Base {
+    virtual void f() {}
+    };
+    struct Child : public Base {
+    virtual void f() override {}
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);
+
+    auto d = a;
+    auto l = [](){};
+
+    // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
+    // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function because of this
+    namespace test_template_alias_sfinae {
+        struct foo {};
+
+        template<typename T>
+        using member = typename T::member_type;
+
+        template<typename T>
+        void func(...) {}
+
+        template<typename T>
+        void func(member<T>*) {}
+
+        void test();
+
+        void test() {
+            func<foo>(0);
+        }
+    }
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval $cachevar=yes
+else
+  eval $cachevar=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+         CXXFLAGS="$ac_save_CXXFLAGS"
+fi
+eval ac_res=\$$cachevar
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+      if eval test x\$$cachevar = xyes; then
+        CXXFLAGS="$CXXFLAGS $switch"
+        ac_success=yes
+        break
+      fi
+    done
+  fi
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  if test x$ax_cxx_compile_cxx11_required = xtrue; then
+    if test x$ac_success = xno; then
+      as_fn_error $? "*** A compiler with support for C++11 language features is required." "$LINENO" 5
+    fi
+  else
+    if test x$ac_success = xno; then
+      HAVE_CXX11=0
+      { $as_echo "$as_me:${as_lineno-$LINENO}: No compiler with C++11 support was found" >&5
+$as_echo "$as_me: No compiler with C++11 support was found" >&6;}
+    else
+      HAVE_CXX11=1
+
+$as_echo "#define HAVE_CXX11 1" >>confdefs.h
+
+    fi
+
+
+  fi
+
 
 am__api_version='1.15'
 
@@ -5545,7 +5944,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='c-ares'
- VERSION='1.11.0'
+ VERSION='1.12.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -5723,6 +6122,134 @@ else
 fi
 
 
+depcc="$CXX"  am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CXX_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+  am__fastdepCXX_TRUE=
+  am__fastdepCXX_FALSE='#'
+else
+  am__fastdepCXX_TRUE='#'
+  am__fastdepCXX_FALSE=
+fi
+
+
 
 # POSIX will say in a future version that running "rm -f" with no argument
 # is OK; and we want to be able to make that assumption in our Makefile
@@ -10534,6 +11061,16 @@ fi
 
 done
 
+
+
+func_stripname_cnf ()
+{
+  case $2 in
+  .*) func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%\\\\$2\$%%"`;;
+  *)  func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%$2\$%%"`;;
+  esac
+} # func_stripname_cnf
+
 # ------------------------------------ #
 #  Determine libtool default behavior  #
 # ------------------------------------ #
@@ -15215,6 +15752,3325 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 CC=$lt_save_CC
 
+      if test -n "$CXX" && ( test no != "$CXX" &&
+    ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+    (test g++ != "$CXX"))); then
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+  # save warnings/boilerplate of simple test code
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  compiler_CXX=$CC
+  func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test yes = "$GXX"; then
+      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+    else
+      lt_prog_compiler_no_builtin_flag_CXX=
+    fi
+
+    if test yes = "$GXX"; then
+      # Set up default GNU C++ configuration
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test no != "$with_gnu_ld" && break
+	;;
+      *)
+	test yes != "$with_gnu_ld" && break
+	;;
+      esac
+    fi
+  done
+  IFS=$lt_save_ifs
+else
+  lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi
+fi
+
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test yes = "$with_gnu_ld"; then
+        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+        export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='$wl'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+        else
+          whole_archive_flag_spec_CXX=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+    ld_shlibs_CXX=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+      aix[4-9]*)
+        if test ia64 = "$host_cpu"; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # have runtime linking enabled, and use it for executables.
+          # For shared libraries, we enable/disable runtime linking
+          # depending on the kind of the shared library created -
+          # when "with_aix_soname,aix_use_runtimelinking" is:
+          # "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "aix,yes"  lib.so          shared, rtl:yes, for executables
+          #            lib.a           static archive
+          # "both,no"  lib.so.V(shr.o) shared, rtl:yes
+          #            lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a(lib.so.V) shared, rtl:no
+          # "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a           static archive
+          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	      # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	      # so we don't have lib.a shared libs to link our executables.
+	      # We have to force runtime linking in this case.
+	      aix_use_runtimelinking=yes
+	      LDFLAGS="$LDFLAGS -Wl,-brtl"
+	    fi
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        archive_cmds_CXX=''
+        hardcode_direct_CXX=yes
+        hardcode_direct_absolute_CXX=yes
+        hardcode_libdir_separator_CXX=':'
+        link_all_deplibs_CXX=yes
+        file_list_spec_CXX='$wl-f,'
+        case $with_aix_soname,$aix_use_runtimelinking in
+        aix,*) ;;	# no import file
+        svr4,* | *,yes) # use import file
+          # The Import File defines what to hardcode.
+          hardcode_direct_CXX=no
+          hardcode_direct_absolute_CXX=no
+          ;;
+        esac
+
+        if test yes = "$GXX"; then
+          case $host_os in aix4.[012]|aix4.[012].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    hardcode_direct_CXX=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    hardcode_minus_L_CXX=yes
+	    hardcode_libdir_flag_spec_CXX='-L$libdir'
+	    hardcode_libdir_separator_CXX=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag=$shared_flag' $wl-G'
+	  fi
+	  # Need to ensure runtime linking is disabled for the traditional
+	  # shared library, or the linker may eventually find shared libraries
+	  # /with/ Import File - we do not want to mix them.
+	  shared_flag_aix='-shared'
+	  shared_flag_svr4='-shared $wl-G'
+        else
+          # not using gcc
+          if test ia64 = "$host_cpu"; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test yes = "$aix_use_runtimelinking"; then
+	      shared_flag='$wl-G'
+	    else
+	      shared_flag='$wl-bM:SRE'
+	    fi
+	    shared_flag_aix='$wl-bM:SRE'
+	    shared_flag_svr4='$wl-G'
+          fi
+        fi
+
+        export_dynamic_flag_spec_CXX='$wl-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        always_export_symbols_CXX=yes
+	if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          # The "-G" linker flag allows undefined symbols.
+          no_undefined_flag_CXX='-bernotok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+          hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+
+          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+        else
+          if test ia64 = "$host_cpu"; then
+	    hardcode_libdir_flag_spec_CXX='$wl-R $libdir:/usr/lib:/lib'
+	    allow_undefined_flag_CXX="-z nodefs"
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+	    hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    no_undefined_flag_CXX=' $wl-bernotok'
+	    allow_undefined_flag_CXX=' $wl-berok'
+	    if test yes = "$with_gnu_ld"; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      whole_archive_flag_spec_CXX='$convenience'
+	    fi
+	    archive_cmds_need_lc_CXX=yes
+	    archive_expsym_cmds_CXX='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	    # -brtl affects multiple linker settings, -berok does not and is overridden later
+	    compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+	    if test svr4 != "$with_aix_soname"; then
+	      # This is similar to how AIX traditionally builds its shared
+	      # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	    fi
+	    if test aix != "$with_aix_soname"; then
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	    else
+	      # used by -dlpreopen to get the symbols
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	    fi
+	    archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$RM -r $output_objdir/$realname.d'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  allow_undefined_flag_CXX=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  ld_shlibs_CXX=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX=' '
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=yes
+	  file_list_spec_CXX='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=.dll
+	  # FIXME: Setting linknames here is a bad hack.
+	  archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	  archive_expsym_cmds_CXX='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+              cp "$export_symbols" "$output_objdir/$soname.def";
+              echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+            else
+              $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+            fi~
+            $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+            linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
+	  enable_shared_with_static_runtimes_CXX=yes
+	  # Don't use ranlib
+	  old_postinstall_cmds_CXX='chmod 644 $oldlib'
+	  postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
+            lt_tool_outputfile="@TOOL_OUTPUT@"~
+            case $lt_outputfile in
+              *.exe|*.EXE) ;;
+              *)
+                lt_outputfile=$lt_outputfile.exe
+                lt_tool_outputfile=$lt_tool_outputfile.exe
+                ;;
+            esac~
+            func_to_tool_file "$lt_outputfile"~
+            if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+              $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+              $RM "$lt_outputfile.manifest";
+            fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX='-L$libdir'
+	  export_dynamic_flag_spec_CXX='$wl--export-all-symbols'
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=no
+	  enable_shared_with_static_runtimes_CXX=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file, use it as
+	    # is; otherwise, prepend EXPORTS...
+	    archive_expsym_cmds_CXX='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+              cp $export_symbols $output_objdir/$soname.def;
+            else
+              echo EXPORTS > $output_objdir/$soname.def;
+              cat $export_symbols >> $output_objdir/$soname.def;
+            fi~
+            $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    ld_shlibs_CXX=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc_CXX=no
+  hardcode_direct_CXX=no
+  hardcode_automatic_CXX=yes
+  hardcode_shlibpath_var_CXX=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec_CXX=''
+  fi
+  link_all_deplibs_CXX=yes
+  allow_undefined_flag_CXX=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    module_expsym_cmds_CXX="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+       if test yes != "$lt_cv_apple_cc_single_mod"; then
+      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+      archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+    fi
+
+  else
+  ld_shlibs_CXX=no
+  fi
+
+	;;
+
+      os2*)
+	hardcode_libdir_flag_spec_CXX='-L$libdir'
+	hardcode_minus_L_CXX=yes
+	allow_undefined_flag_CXX=unsupported
+	shrext_cmds=.dll
+	archive_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	archive_expsym_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  prefix_cmds="$SED"~
+	  if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	    prefix_cmds="$prefix_cmds -e 1d";
+	  fi~
+	  prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	  cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	old_archive_From_new_cmds_CXX='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+	enable_shared_with_static_runtimes_CXX=yes
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        ld_shlibs_CXX=no
+        ;;
+
+      freebsd-elf*)
+        archive_cmds_need_lc_CXX=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        ld_shlibs_CXX=yes
+        ;;
+
+      haiku*)
+        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+        link_all_deplibs_CXX=yes
+        ;;
+
+      hpux9*)
+        hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+        hardcode_libdir_separator_CXX=:
+        export_dynamic_flag_spec_CXX='$wl-E'
+        hardcode_direct_CXX=yes
+        hardcode_minus_L_CXX=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            ld_shlibs_CXX=no
+            ;;
+          aCC*)
+            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv -f $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test yes = "$GXX"; then
+              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv -f $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              ld_shlibs_CXX=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test no = "$with_gnu_ld"; then
+	  hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+	  hardcode_libdir_separator_CXX=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      export_dynamic_flag_spec_CXX='$wl-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct_CXX=no
+            hardcode_shlibpath_var_CXX=no
+            ;;
+          *)
+            hardcode_direct_CXX=yes
+            hardcode_direct_absolute_CXX=yes
+            hardcode_minus_L_CXX=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        case $host_cpu in
+	          hppa*64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[3-9]*)
+	hardcode_direct_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	export_dynamic_flag_spec_CXX='$wl-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	archive_expsym_cmds_CXX='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	      else
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+	      fi
+	    fi
+	    link_all_deplibs_CXX=yes
+	    ;;
+        esac
+        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+        hardcode_libdir_separator_CXX=:
+        inherit_rpath_CXX=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv -f \$templib $lib'
+	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv -f \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    archive_cmds_need_lc_CXX=no
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+	      prelink_cmds_CXX='tpldir=Template.dir~
+               rm -rf $tpldir~
+               $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+               compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      old_archive_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+                $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+                $RANLIB $oldlib'
+	      archive_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      archive_expsym_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    hardcode_libdir_flag_spec_CXX='$wl--rpath $wl$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    whole_archive_flag_spec_CXX='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    if test yes = "$supports_anon_versioning"; then
+	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+                cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+                echo "local: *; };" >> $output_objdir/$libname.ver~
+                $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      no_undefined_flag_CXX=' -zdefs'
+	      archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+	      hardcode_libdir_flag_spec_CXX='-R$libdir'
+	      whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	      compiler_needs_object_CXX=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	ld_shlibs_CXX=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  hardcode_libdir_flag_spec_CXX='-R$libdir'
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        ld_shlibs_CXX=yes
+	;;
+
+      openbsd* | bitrig*)
+	if test -f /usr/libexec/ld.so; then
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	  hardcode_direct_absolute_CXX=yes
+	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+	    export_dynamic_flag_spec_CXX='$wl-E'
+	    whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv -f \$templib $lib'
+
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+	        archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+		;;
+	      *)
+	        allow_undefined_flag_CXX=' -expect_unresolved \*'
+	        archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+                  echo "-hidden">> $lib.exp~
+                  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+                  $RM $lib.exp'
+	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+		;;
+	    esac
+
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+	      case $host in
+	        osf3*)
+	          archive_cmds_CXX='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	        *)
+	          archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+	      hardcode_libdir_separator_CXX=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            archive_cmds_need_lc_CXX=yes
+	    no_undefined_flag_CXX=' -zdefs'
+	    archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+              $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    hardcode_libdir_flag_spec_CXX='-R$libdir'
+	    hardcode_shlibpath_var_CXX=no
+	    case $host_os in
+	      solaris2.[0-5] | solaris2.[0-5].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands '-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    link_all_deplibs_CXX=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      no_undefined_flag_CXX=' $wl-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require '-G' NOT '-shared' on this
+	        # platform.
+	        archive_cmds_CXX='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      hardcode_libdir_flag_spec_CXX='$wl-R $wl$libdir'
+	      case $host_os in
+		solaris2.[0-5] | solaris2.[0-5].*) ;;
+		*)
+		  whole_archive_flag_spec_CXX='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag_CXX='$wl-z,text'
+      archive_cmds_need_lc_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We CANNOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	no_undefined_flag_CXX='$wl-z,text'
+	allow_undefined_flag_CXX='$wl-z,nodefs'
+	archive_cmds_need_lc_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='$wl-R,$libdir'
+	hardcode_libdir_separator_CXX=':'
+	link_all_deplibs_CXX=yes
+	export_dynamic_flag_spec_CXX='$wl-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+              '"$old_archive_cmds_CXX"
+	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+              '"$reload_cmds_CXX"
+	    ;;
+	  *)
+	    archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+    test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+    GCC_CXX=$GXX
+    LD_CXX=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case $prev$p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test x-L = "$p" ||
+          test x-R = "$p"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test no = "$pre_test_object_deps_done"; then
+	 case $prev in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$compiler_lib_search_path_CXX"; then
+	     compiler_lib_search_path_CXX=$prev$p
+	   else
+	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} $prev$p"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$postdeps_CXX"; then
+	   postdeps_CXX=$prev$p
+	 else
+	   postdeps_CXX="${postdeps_CXX} $prev$p"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test no = "$pre_test_object_deps_done"; then
+	 if test -z "$predep_objects_CXX"; then
+	   predep_objects_CXX=$p
+	 else
+	   predep_objects_CXX="$predep_objects_CXX $p"
+	 fi
+       else
+	 if test -z "$postdep_objects_CXX"; then
+	   postdep_objects_CXX=$p
+	 else
+	   postdep_objects_CXX="$postdep_objects_CXX $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  predep_objects_CXX=
+  postdep_objects_CXX=
+  postdeps_CXX=
+  ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test yes = "$GXX"; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic_CXX='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static_CXX='$wl-static'
+	;;
+      esac
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static_CXX=
+      ;;
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	lt_prog_compiler_pic_CXX='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic_CXX='-fPIC -shared'
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[4-9]*)
+	# All AIX code is PIC.
+	if test ia64 = "$host_cpu"; then
+	  # AIX 5 now supports IA64 processor
+	  lt_prog_compiler_static_CXX='-Bstatic'
+	else
+	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+	    if test ia64 != "$host_cpu"; then
+	      lt_prog_compiler_pic_CXX='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      lt_prog_compiler_pic_CXX='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64, which still supported -KPIC.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fpic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-qpic'
+	    lt_prog_compiler_static_CXX='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      lt_prog_compiler_pic_CXX='-KPIC'
+	      lt_prog_compiler_static_CXX='-Bstatic'
+	      lt_prog_compiler_wl_CXX='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    lt_prog_compiler_pic_CXX='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd* | netbsdelf*-gnu)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        lt_prog_compiler_pic_CXX='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    lt_prog_compiler_wl_CXX='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    lt_prog_compiler_pic_CXX='-pic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	lt_prog_compiler_can_build_shared_CXX=no
+	;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
+lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works_CXX=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works_CXX"; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works_CXX=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works_CXX=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works_CXX=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works_CXX"; then
+    :
+else
+    lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o_CXX" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test no = "$hard_links"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  case $host_os in
+  aix[4-9]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+    # Without the "-l" option, or with the "-B" option, AIX nm treats
+    # weak defined symbols like other global defined symbols, whereas
+    # GNU nm marks them as "W".
+    # While the 'weak' keyword is ignored in the Export File, we need
+    # it in the Import File for the 'aix-soname' feature, so we have
+    # to replace the "-B" option with "-P" for AIX nm.
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX=$ltdll_cmds
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      exclude_expsyms_CXX='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+      ;;
+    esac
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    link_all_deplibs_CXX=no
+    ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl_CXX
+	  pic_flag=$lt_prog_compiler_pic_CXX
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+	  allow_undefined_flag_CXX=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc_CXX=no
+	  else
+	    lt_cv_archive_cmds_need_lc_CXX=yes
+	  fi
+	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a(lib.so.V)'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  hardcode_libdir_flag_spec_CXX='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsdelf*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='NetBSD ld.elf_so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+   test -n "$runpath_var_CXX" ||
+   test yes = "$hardcode_automatic_CXX"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$hardcode_direct_CXX" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" &&
+     test no != "$hardcode_minus_L_CXX"; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test relink = "$hardcode_action_CXX" ||
+   test yes = "$inherit_rpath_CXX"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 
 
 
@@ -19889,172 +23745,6 @@ _ACEOF
   esac
 
 
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5
-$as_echo_n "checking size of size_t... " >&6; }
-if ${ac_cv_sizeof_size_t+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (size_t))" "ac_cv_sizeof_size_t"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_size_t" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (size_t)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_size_t=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5
-$as_echo "$ac_cv_sizeof_size_t" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_SIZE_T $ac_cv_sizeof_size_t
-_ACEOF
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
-$as_echo_n "checking size of long... " >&6; }
-if ${ac_cv_sizeof_long+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_long" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (long)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_long=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
-$as_echo "$ac_cv_sizeof_long" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_LONG $ac_cv_sizeof_long
-_ACEOF
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
-$as_echo_n "checking size of int... " >&6; }
-if ${ac_cv_sizeof_int+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_int" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (int)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_int=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
-$as_echo "$ac_cv_sizeof_int" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_INT $ac_cv_sizeof_int
-_ACEOF
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of short" >&5
-$as_echo_n "checking size of short... " >&6; }
-if ${ac_cv_sizeof_short+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_short" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (short)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_short=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5
-$as_echo "$ac_cv_sizeof_short" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_SHORT $ac_cv_sizeof_short
-_ACEOF
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of time_t" >&5
-$as_echo_n "checking size of time_t... " >&6; }
-if ${ac_cv_sizeof_time_t+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (time_t))" "ac_cv_sizeof_time_t"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_time_t" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (time_t)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_time_t=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_time_t" >&5
-$as_echo "$ac_cv_sizeof_time_t" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_TIME_T $ac_cv_sizeof_time_t
-_ACEOF
-
-
-
 ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = xyes; then :
 
@@ -27318,127 +31008,6 @@ done
 
 
 
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of struct in6_addr" >&5
-$as_echo_n "checking size of struct in6_addr... " >&6; }
-if ${ac_cv_sizeof_struct_in6_addr+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct in6_addr))" "ac_cv_sizeof_struct_in6_addr"        "
-#undef inline
-#ifdef HAVE_WINDOWS_H
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-#endif
-#else
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#endif
-
-
-"; then :
-
-else
-  if test "$ac_cv_type_struct_in6_addr" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (struct in6_addr)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_struct_in6_addr=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_in6_addr" >&5
-$as_echo "$ac_cv_sizeof_struct_in6_addr" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_STRUCT_IN6_ADDR $ac_cv_sizeof_struct_in6_addr
-_ACEOF
-
-
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of struct in_addr" >&5
-$as_echo_n "checking size of struct in_addr... " >&6; }
-if ${ac_cv_sizeof_struct_in_addr+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (struct in_addr))" "ac_cv_sizeof_struct_in_addr"        "
-#undef inline
-#ifdef HAVE_WINDOWS_H
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-#endif
-#else
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#endif
-
-
-"; then :
-
-else
-  if test "$ac_cv_type_struct_in_addr" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (struct in_addr)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_struct_in_addr=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_in_addr" >&5
-$as_echo "$ac_cv_sizeof_struct_in_addr" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_STRUCT_IN_ADDR $ac_cv_sizeof_struct_in_addr
-_ACEOF
-
-
-
-
 
     for ac_header in sys/types.h sys/socket.h netdb.h
 do :
@@ -28302,7 +31871,34 @@ $as_echo "$as_me: WARNING: Continuing even with errors mentioned immediately abo
   fi
 
 
-if test "x$cross_compiling" = "xno"; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build tests" >&5
+$as_echo_n "checking whether to build tests... " >&6; }
+# Check whether --enable-tests was given.
+if test "${enable_tests+set}" = set; then :
+  enableval=$enable_tests;  build_tests="$enableval"
+else
+   if test "x$HAVE_CXX11" = "x1" && test "x$cross_compiling" = "xno" ; then
+	    build_tests="yes"
+	  else
+	    build_tests="no"
+	  fi
+
+
+fi
+
+
+if test "x$build_tests" = "xyes" ; then
+	if test "x$HAVE_CXX11" = "0" ; then
+		as_fn_error $? "*** Building tests requires a CXX11 compiler" "$LINENO" 5
+	fi
+	if test "x$cross_compiling" = "xyes" ; then
+		as_fn_error $? "*** Tests not supported when cross compiling" "$LINENO" 5
+	fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $build_tests" >&5
+$as_echo "$build_tests" >&6; }
+
+if test "x$build_tests" = "xyes" ; then
 
 
 subdirs="$subdirs test"
@@ -28444,6 +32040,10 @@ if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
   as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
  if test -n "$EXEEXT"; then
   am__EXEEXT_TRUE=
   am__EXEEXT_FALSE='#'
@@ -28870,7 +32470,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by c-ares $as_me 1.11.0, which was
+This file was extended by c-ares $as_me 1.12.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -28936,7 +32536,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-c-ares config.status 1.11.0
+c-ares config.status 1.12.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
@@ -29201,6 +32801,60 @@ enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_sub
 enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
 old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
 striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
 
 LTCC='$LTCC'
 LTCFLAGS='$LTCFLAGS'
@@ -29283,7 +32937,38 @@ soname_spec \
 install_override_mode \
 finish_eval \
 old_striplib \
-striplib; do
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_separator_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
     case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
     *[\\\\\\\`\\"\\\$]*)
       eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
@@ -29314,7 +32999,18 @@ postuninstall_cmds \
 finish_cmds \
 sys_lib_search_path_spec \
 configure_time_dlsearch_path \
-configure_time_lt_sys_library_path; do
+configure_time_lt_sys_library_path \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX \
+postlink_cmds_CXX; do
     case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
     *[\\\\\\\`\\"\\\$]*)
       eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
@@ -29342,6 +33038,8 @@ fi
 
 
 
+
+
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
@@ -30089,7 +33787,7 @@ $as_echo X"$file" |
 
 
 # The names of the tagged configurations supported by this script.
-available_tags=''
+available_tags='CXX '
 
 # Configured defaults for sys_lib_dlsearch_path munging.
 : \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
@@ -30497,6 +34195,20 @@ file_list_spec=$lt_file_list_spec
 # How to hardcode a shared library path into an executable.
 hardcode_action=$hardcode_action
 
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
 # ### END LIBTOOL CONFIG
 
 _LT_EOF
@@ -30589,6 +34301,159 @@ ltmain=$ac_aux_dir/ltmain.sh
     (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
   chmod +x "$ofile"
 
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
  ;;
 
   esac
diff --git a/configure.ac b/configure.ac
index 84285c8..b89ce35 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 AC_PREREQ(2.57)
 
 dnl Version not hardcoded here. Fetched later from ares_version.h
-AC_INIT([c-ares], [1.11.0],
+AC_INIT([c-ares], [1.12.0],
   [c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares])
 
 XC_OVR_ZZ50
@@ -82,6 +82,7 @@ dnl Get system canonical name
 AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS])
 
 XC_CHECK_PROG_CC
+AX_CXX_COMPILE_STDCXX_11([noext],[optional])
 
 XC_AUTOMAKE
 
@@ -481,12 +482,6 @@ AC_TYPE_SIZE_T
 AC_HEADER_TIME
 CURL_CHECK_STRUCT_TIMEVAL
 
-AC_CHECK_SIZEOF(size_t)
-AC_CHECK_SIZEOF(long)
-AC_CHECK_SIZEOF(int)
-AC_CHECK_SIZEOF(short)
-AC_CHECK_SIZEOF(time_t)
-
 AC_CHECK_TYPE(long long,
    [AC_DEFINE(HAVE_LONGLONG, 1,
      [Define to 1 if the compiler supports the 'long long' data type.])]
@@ -759,63 +754,6 @@ AC_CHECK_FUNCS([bitncmp \
 ])
 
 
-AC_CHECK_SIZEOF(struct in6_addr, ,
-[
-#undef inline
-#ifdef HAVE_WINDOWS_H
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-#endif
-#else
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#endif
-]
-)
-
-AC_CHECK_SIZEOF(struct in_addr, ,
-[
-#undef inline
-#ifdef HAVE_WINDOWS_H
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-#endif
-#else
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#endif
-]
-)
-
-
 dnl Check if the getnameinfo function is available
 dnl and get the types of five of its arguments.
 CURL_CHECK_FUNC_GETNAMEINFO
@@ -877,7 +815,29 @@ squeeze CARES_PRIVATE_LIBS
 
 XC_CHECK_BUILD_FLAGS
 
-if test "x$cross_compiling" = "xno"; then
+AC_MSG_CHECKING([whether to build tests])
+AC_ARG_ENABLE(tests,
+	AC_HELP_STRING([--enable-tests], [build test suite]),
+	[ build_tests="$enableval" ],
+	[ if test "x$HAVE_CXX11" = "x1" && test "x$cross_compiling" = "xno" ; then
+	    build_tests="yes"
+	  else
+	    build_tests="no"
+	  fi
+	]
+)
+
+if test "x$build_tests" = "xyes" ; then
+	if test "x$HAVE_CXX11" = "0" ; then
+		AC_MSG_ERROR([*** Building tests requires a CXX11 compiler])
+	fi
+	if test "x$cross_compiling" = "xyes" ; then
+		AC_MSG_ERROR([*** Tests not supported when cross compiling])
+	fi
+fi
+AC_MSG_RESULT([$build_tests])
+
+if test "x$build_tests" = "xyes" ; then
   AC_CONFIG_SUBDIRS([test])
 fi
 
diff --git a/test/Makefile.am b/test/Makefile.am
index 4809b51..da771ab 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -13,9 +13,9 @@ CXXFLAGS += -Wall $(PTHREAD_CFLAGS)
 # Makefile.inc provides the TESTSOURCES, TESTHEADERS and FUZZSOURCES defines
 include Makefile.inc
 
-TESTS = arestest
+TESTS = arestest fuzzcheck.sh
 
-noinst_PROGRAMS = arestest aresfuzz
+noinst_PROGRAMS = arestest aresfuzz dnsdump
 arestest_SOURCES = $(TESTSOURCES) $(TESTHEADERS)
 arestest_LDADD = libgmock.la libgtest.la $(ARES_BLD_DIR)/libcares.la $(PTHREAD_LIBS)
 
@@ -33,4 +33,7 @@ libgtest_la_CPPFLAGS = -isystem $(GTEST_DIR)/include -I$(GTEST_DIR) -isystem $(G
 aresfuzz_SOURCES = $(FUZZSOURCES)
 aresfuzz_LDADD = $(ARES_BLD_DIR)/libcares.la
 
+dnsdump_SOURCES = $(DUMPSOURCES)
+dnsdump_LDADD = $(ARES_BLD_DIR)/libcares.la
+
 test: check
diff --git a/test/Makefile.in b/test/Makefile.in
index 0bebc91..f558f0c 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -89,8 +89,8 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
-TESTS = arestest$(EXEEXT)
-noinst_PROGRAMS = arestest$(EXEEXT) aresfuzz$(EXEEXT)
+TESTS = arestest$(EXEEXT) fuzzcheck.sh
+noinst_PROGRAMS = arestest$(EXEEXT) aresfuzz$(EXEEXT) dnsdump$(EXEEXT)
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../m4/ax_check_user_namespace.m4 \
@@ -148,6 +148,10 @@ arestest_DEPENDENCIES = libgmock.la libgtest.la \
 arestest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
 	$(CXXFLAGS) $(arestest_LDFLAGS) $(LDFLAGS) -o $@
+am__objects_4 = dns-proto.$(OBJEXT) dns-dump.$(OBJEXT)
+am_dnsdump_OBJECTS = $(am__objects_4)
+dnsdump_OBJECTS = $(am_dnsdump_OBJECTS)
+dnsdump_DEPENDENCIES = $(ARES_BLD_DIR)/libcares.la
 AM_V_P = $(am__v_P_@AM_V@)
 am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
 am__v_P_0 = false
@@ -164,24 +168,6 @@ DEFAULT_INCLUDES = -I.@am__isrc@
 depcomp = $(SHELL) $(top_srcdir)/../depcomp
 am__depfiles_maybe = depfiles
 am__mv = mv -f
-CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
-	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
-LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
-	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
-	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
-	$(AM_CXXFLAGS) $(CXXFLAGS)
-AM_V_CXX = $(am__v_CXX_@AM_V@)
-am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
-am__v_CXX_0 = @echo "  CXX     " $@;
-am__v_CXX_1 = 
-CXXLD = $(CXX)
-CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
-	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
-	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
-AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
-am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
-am__v_CXXLD_0 = @echo "  CXXLD   " $@;
-am__v_CXXLD_1 = 
 COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
 	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
@@ -200,10 +186,28 @@ AM_V_CCLD = $(am__v_CCLD_@AM_V@)
 am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
 am__v_CCLD_0 = @echo "  CCLD    " $@;
 am__v_CCLD_1 = 
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
 SOURCES = $(libgmock_la_SOURCES) $(libgtest_la_SOURCES) \
-	$(aresfuzz_SOURCES) $(arestest_SOURCES)
+	$(aresfuzz_SOURCES) $(arestest_SOURCES) $(dnsdump_SOURCES)
 DIST_SOURCES = $(libgmock_la_SOURCES) $(libgtest_la_SOURCES) \
-	$(aresfuzz_SOURCES) $(arestest_SOURCES)
+	$(aresfuzz_SOURCES) $(arestest_SOURCES) $(dnsdump_SOURCES)
 am__can_run_installinfo = \
   case $$AM_UPDATE_INFO_DIR in \
     n|no|NO) false;; \
@@ -625,8 +629,11 @@ TESTSOURCES = ares-test-main.cc	\
 TESTHEADERS = ares-test.h		\
   dns-proto.h
 
-FUZZSOURCES = ares-test-fuzz.cc	\
-  ares-fuzz.cc
+FUZZSOURCES = ares-test-fuzz.c		\
+  ares-fuzz.c
+
+DUMPSOURCES = dns-proto.cc		\
+  dns-dump.cc
 
 arestest_SOURCES = $(TESTSOURCES) $(TESTHEADERS)
 arestest_LDADD = libgmock.la libgtest.la $(ARES_BLD_DIR)/libcares.la $(PTHREAD_LIBS)
@@ -638,11 +645,13 @@ libgtest_la_SOURCES = $(GTEST_DIR)/src/gtest-all.cc
 libgtest_la_CPPFLAGS = -isystem $(GTEST_DIR)/include -I$(GTEST_DIR) -isystem $(GMOCK_DIR)/include -I$(GMOCK_DIR)
 aresfuzz_SOURCES = $(FUZZSOURCES)
 aresfuzz_LDADD = $(ARES_BLD_DIR)/libcares.la
+dnsdump_SOURCES = $(DUMPSOURCES)
+dnsdump_LDADD = $(ARES_BLD_DIR)/libcares.la
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
 
 .SUFFIXES:
-.SUFFIXES: .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+.SUFFIXES: .c .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
 am--refresh: Makefile
 	@:
 $(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(srcdir)/Makefile.inc $(am__configure_deps)
@@ -721,12 +730,16 @@ clean-noinstPROGRAMS:
 
 aresfuzz$(EXEEXT): $(aresfuzz_OBJECTS) $(aresfuzz_DEPENDENCIES) $(EXTRA_aresfuzz_DEPENDENCIES) 
 	@rm -f aresfuzz$(EXEEXT)
-	$(AM_V_CXXLD)$(CXXLINK) $(aresfuzz_OBJECTS) $(aresfuzz_LDADD) $(LIBS)
+	$(AM_V_CCLD)$(LINK) $(aresfuzz_OBJECTS) $(aresfuzz_LDADD) $(LIBS)
 
 arestest$(EXEEXT): $(arestest_OBJECTS) $(arestest_DEPENDENCIES) $(EXTRA_arestest_DEPENDENCIES) 
 	@rm -f arestest$(EXEEXT)
 	$(AM_V_CXXLD)$(arestest_LINK) $(arestest_OBJECTS) $(arestest_LDADD) $(LIBS)
 
+dnsdump$(EXEEXT): $(dnsdump_OBJECTS) $(dnsdump_DEPENDENCIES) $(EXTRA_dnsdump_DEPENDENCIES) 
+	@rm -f dnsdump$(EXEEXT)
+	$(AM_V_CXXLD)$(CXXLINK) $(dnsdump_OBJECTS) $(dnsdump_LDADD) $(LIBS)
+
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
 
@@ -753,11 +766,33 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ares-test-parse-txt.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ares-test-parse.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ares-test.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dns-dump.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dns-proto-test.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dns-proto.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libgmock_la-gmock-all.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libgtest_la-gtest-all.Plo@am__quote@
 
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
 .cc.o:
 @am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
 @am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
@@ -1009,6 +1044,13 @@ arestest.log: arestest$(EXEEXT)
 	--log-file $$b.log --trs-file $$b.trs \
 	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
 	"$$tst" $(AM_TESTS_FD_REDIRECT)
+fuzzcheck.sh.log: fuzzcheck.sh
+	@p='fuzzcheck.sh'; \
+	b='fuzzcheck.sh'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
 .test.log:
 	@p='$<'; \
 	$(am__set_b); \
diff --git a/test/Makefile.inc b/test/Makefile.inc
index 54e424b..2fa98b1 100644
--- a/test/Makefile.inc
+++ b/test/Makefile.inc
@@ -22,5 +22,8 @@ TESTSOURCES = ares-test-main.cc	\
 TESTHEADERS = ares-test.h		\
   dns-proto.h
 
-FUZZSOURCES = ares-test-fuzz.cc	\
-  ares-fuzz.cc
+FUZZSOURCES = ares-test-fuzz.c		\
+  ares-fuzz.c
+
+DUMPSOURCES = dns-proto.cc		\
+  dns-dump.cc
diff --git a/test/ares-fuzz.c b/test/ares-fuzz.c
new file mode 100644
index 0000000..9276128
--- /dev/null
+++ b/test/ares-fuzz.c
@@ -0,0 +1,58 @@
+/*
+ * General driver to allow command-line fuzzer (i.e. afl) to
+ * exercise the libFuzzer entrypoint.
+ */
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define kMaxAflInputSize (1 << 20)
+static unsigned char afl_buffer[kMaxAflInputSize];
+
+#ifdef __AFL_LOOP
+/* If we are built with afl-clang-fast, use persistent mode */
+#define KEEP_FUZZING(count)  __AFL_LOOP(1000)
+#else
+/* If we are built with afl-clang, execute each input once */
+#define KEEP_FUZZING(count) ((count) < 1)
+#endif
+
+/* In ares-test-fuzz.c: */
+int LLVMFuzzerTestOneInput(const unsigned char *data, unsigned long size);
+
+static void ProcessFile(int fd) {
+  ssize_t count = read(fd, afl_buffer, kMaxAflInputSize);
+  /*
+   * Make a copy of the data so that it's not part of a larger
+   * buffer (where buffer overflows would go unnoticed).
+   */
+  unsigned char *copied_data = (unsigned char *)malloc(count);
+  LLVMFuzzerTestOneInput(copied_data, count);
+  free(copied_data);
+}
+
+int main(int argc, char *argv[]) {
+  if (argc == 1) {
+    int count = 0;
+    while (KEEP_FUZZING(count)) {
+      ProcessFile(fileno(stdin));
+      count++;
+    }
+  } else {
+    int ii;
+    for (ii = 1; ii < argc; ++ii) {
+      int fd = open(argv[ii], O_RDONLY);
+      if (fd < 0) {
+        fprintf(stderr, "Failed to open '%s'\n", argv[ii]);
+        continue;
+      }
+      ProcessFile(fd);
+      close(fd);
+    }
+  }
+  return 0;
+}
diff --git a/test/ares-fuzz.cc b/test/ares-fuzz.cc
deleted file mode 100644
index 4680b72..0000000
--- a/test/ares-fuzz.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// General driver to allow command-line fuzzer (i.e. afl) to
-// fuzz the libfuzzer entrypoint.
-#include <stdio.h>
-#include <unistd.h>
-
-#include <vector>
-
-extern "C" void LLVMFuzzerTestOneInput(const unsigned char *data,
-                                       unsigned long size);
-int main() {
-  std::vector<unsigned char> input;
-  while (true) {
-    unsigned char buffer[1024];
-    int len = read(fileno(stdin), buffer, sizeof(buffer));
-    if (len <= 0) break;
-    input.insert(input.end(), buffer, buffer + len);
-  }
-  LLVMFuzzerTestOneInput(input.data(), input.size());
-  return 0;
-}
diff --git a/test/ares-test-fuzz.cc b/test/ares-test-fuzz.c
index 49d844c..528e76c 100644
--- a/test/ares-test-fuzz.cc
+++ b/test/ares-test-fuzz.c
@@ -1,44 +1,46 @@
-#include "ares-test.h"
-#include <vector>
+#include <stddef.h>
+
+#include "ares.h"
 
 // Entrypoint for Clang's libfuzzer
-extern "C" void LLVMFuzzerTestOneInput(const unsigned char *data,
-                                       unsigned long size) {
+int LLVMFuzzerTestOneInput(const unsigned char *data,
+                                      unsigned long size) {
   // Feed the data into each of the ares_parse_*_reply functions.
-  struct hostent *host = nullptr;
+  struct hostent *host = NULL;
   struct ares_addrttl info[5];
   int count = 5;
   ares_parse_a_reply(data, size, &host, info, &count);
   if (host) ares_free_hostent(host);
 
-  host = nullptr;
+  host = NULL;
   struct ares_addr6ttl info6[5];
   count = 5;
   ares_parse_aaaa_reply(data, size, &host, info6, &count);
   if (host) ares_free_hostent(host);
 
-  host = nullptr;
-  ares::byte addrv4[4] = {0x10, 0x20, 0x30, 0x40};
+  host = NULL;
+  unsigned char addrv4[4] = {0x10, 0x20, 0x30, 0x40};
   ares_parse_ptr_reply(data, size, addrv4, sizeof(addrv4), AF_INET, &host);
   if (host) ares_free_hostent(host);
 
-  host = nullptr;
+  host = NULL;
   ares_parse_ns_reply(data, size, &host);
   if (host) ares_free_hostent(host);
 
-  struct ares_srv_reply* srv = nullptr;
+  struct ares_srv_reply* srv = NULL;
   ares_parse_srv_reply(data, size, &srv);
   if (srv) ares_free_data(srv);
 
-  struct ares_mx_reply* mx = nullptr;
+  struct ares_mx_reply* mx = NULL;
   ares_parse_mx_reply(data, size, &mx);
   if (mx) ares_free_data(mx);
 
-  struct ares_txt_reply* txt = nullptr;
+  struct ares_txt_reply* txt = NULL;
   ares_parse_txt_reply(data, size, &txt);
   if (txt) ares_free_data(txt);
 
-  struct ares_soa_reply* soa = nullptr;
+  struct ares_soa_reply* soa = NULL;
   ares_parse_soa_reply(data, size, &soa);
   if (soa) ares_free_data(soa);
+  return 0;
 }
diff --git a/test/ares-test-init.cc b/test/ares-test-init.cc
index c9c6089..66570ac 100644
--- a/test/ares-test-init.cc
+++ b/test/ares-test-init.cc
@@ -354,6 +354,26 @@ CONTAINED_TEST_F(LibraryTest, ContainerChannelInit,
   return HasFailure();
 }
 
+CONTAINED_TEST_F(LibraryTest, ContainerSortlistOptionInit,
+                 "myhostname", "mydomainname.org", filelist) {
+  ares_channel channel = nullptr;
+  struct ares_options opts = {0};
+  int optmask = 0;
+  optmask |= ARES_OPT_SORTLIST;
+  opts.nsort = 0;
+  // Explicitly specifying an empty sortlist in the options should override the
+  // environment.
+  EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask));
+  ares_save_options(channel, &opts, &optmask);
+  EXPECT_EQ(0, opts.nsort);
+  EXPECT_EQ(nullptr, opts.sortlist);
+  EXPECT_EQ(ARES_OPT_SORTLIST, (optmask & ARES_OPT_SORTLIST));
+  ares_destroy_options(&opts);
+
+  ares_destroy(channel);
+  return HasFailure();
+}
+
 NameContentList fullresolv = {
   {"/etc/resolv.conf", " nameserver   1.2.3.4 \n"
                        "search   first.com second.com\n"
@@ -431,8 +451,8 @@ CONTAINED_TEST_F(LibraryTest, ContainerResolvConfNotReadable,
                  "myhostname", "mydomainname.org", filelist) {
   ares_channel channel = nullptr;
   MakeUnreadable hide("/etc/resolv.conf");
-  // Unavailable /etc/resolv.conf fails initialization.
-  EXPECT_EQ(ARES_EFILE, ares_init(&channel));
+  // Unavailable /etc/resolv.conf falls back to defaults
+  EXPECT_EQ(ARES_SUCCESS, ares_init(&channel));
   return HasFailure();
 }
 CONTAINED_TEST_F(LibraryTest, ContainerNsswitchConfNotReadable,
@@ -470,6 +490,41 @@ CONTAINED_TEST_F(LibraryTest, ContainerSvcConfNotReadable,
   return HasFailure();
 }
 
+NameContentList rotateenv = {
+  {"/etc/resolv.conf", "nameserver 1.2.3.4\n"
+                       "search first.com second.com\n"
+                       "options rotate\n"}};
+CONTAINED_TEST_F(LibraryTest, ContainerRotateInit,
+                 "myhostname", "mydomainname.org", rotateenv) {
+  ares_channel channel = nullptr;
+  EXPECT_EQ(ARES_SUCCESS, ares_init(&channel));
+
+  struct ares_options opts;
+  int optmask = 0;
+  ares_save_options(channel, &opts, &optmask);
+  EXPECT_EQ(ARES_OPT_ROTATE, (optmask & ARES_OPT_ROTATE));
+  ares_destroy_options(&opts);
+
+  ares_destroy(channel);
+  return HasFailure();
+}
+
+CONTAINED_TEST_F(LibraryTest, ContainerRotateOverride,
+                 "myhostname", "mydomainname.org", rotateenv) {
+  ares_channel channel = nullptr;
+  struct ares_options opts = {0};
+  int optmask = ARES_OPT_NOROTATE;
+  EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask));
+
+  optmask = 0;
+  ares_save_options(channel, &opts, &optmask);
+  EXPECT_EQ(ARES_OPT_NOROTATE, (optmask & ARES_OPT_NOROTATE));
+  ares_destroy_options(&opts);
+
+  ares_destroy(channel);
+  return HasFailure();
+}
+
 NameContentList multiresolv = {
   {"/etc/resolv.conf", " nameserver 1::2 ;  ;;\n"
                        " domain first.com\n"},
diff --git a/test/ares-test-live.cc b/test/ares-test-live.cc
index bbf9b4e..b8ff8eb 100644
--- a/test/ares-test-live.cc
+++ b/test/ares-test-live.cc
@@ -157,7 +157,9 @@ TEST_P(DefaultChannelModeTest, LiveGetLocalhostByAddrV4) {
 
 TEST_P(DefaultChannelModeTest, LiveGetLocalhostByAddrV6) {
   HostResult result;
-  struct in6_addr addr = in6addr_loopback;
+  struct in6_addr addr;
+  memset(&addr, 0, sizeof(addr));
+  addr.s6_addr[15] = 1;  // in6addr_loopback
   ares_gethostbyaddr(channel_, &addr, sizeof(addr), AF_INET6, HostCallback, &result);
   Process();
   EXPECT_TRUE(result.done_);
@@ -203,7 +205,7 @@ INSTANTIATE_TEST_CASE_P(Modes, DefaultChannelModeTest,
 
 TEST_F(DefaultChannelTest, LiveSearchA) {
   SearchResult result;
-  ares_search(channel_, "www.facebook.com.", ns_c_in, ns_t_a,
+  ares_search(channel_, "www.youtube.com.", ns_c_in, ns_t_a,
               SearchCallback, &result);
   Process();
   EXPECT_TRUE(result.done_);
diff --git a/test/ares-test-main.cc b/test/ares-test-main.cc
index 329d34d..f7e90cb 100644
--- a/test/ares-test-main.cc
+++ b/test/ares-test-main.cc
@@ -4,15 +4,20 @@
 #include "ares-test.h"
 
 int main(int argc, char* argv[]) {
-  ::testing::InitGoogleTest(&argc, argv);
+  std::vector<char*> gtest_argv = {argv[0]};
   for (int ii = 1; ii < argc; ii++) {
     if (strcmp(argv[ii], "-v") == 0) {
       ares::test::verbose = true;
     } else if ((strcmp(argv[ii], "-p") == 0) && (ii + 1 < argc)) {
       ii++;
       ares::test::mock_port = atoi(argv[ii]);
+    } else {
+      gtest_argv.push_back(argv[ii]);
     }
   }
+  int gtest_argc = gtest_argv.size();
+  gtest_argv.push_back(nullptr);
+  ::testing::InitGoogleTest(&gtest_argc, gtest_argv.data());
 
 #ifdef WIN32
   WORD wVersionRequested = MAKEWORD(2, 2);
diff --git a/test/ares-test-misc.cc b/test/ares-test-misc.cc
index bde4678..5e5bc0b 100644
--- a/test/ares-test-misc.cc
+++ b/test/ares-test-misc.cc
@@ -193,6 +193,19 @@ TEST_F(LibraryTest, CreateQuery) {
   EXPECT_EQ(expected, actual);
 }
 
+TEST_F(LibraryTest, CreateQueryTrailingEscapedDot) {
+  byte* p;
+  int len;
+  EXPECT_EQ(ARES_SUCCESS,
+            ares_create_query("example.com\\.", ns_c_in, ns_t_a, 0x1234, 0,
+                              &p, &len, 0));
+  std::vector<byte> data(p, p + len);
+  ares_free_string(p);
+
+  std::string actual = PacketToString(data);
+  EXPECT_EQ("REQ QRY  Q:{'example.com\\.' IN A}", actual);
+}
+
 TEST_F(LibraryTest, CreateQueryFailures) {
   byte* p;
   int len;
diff --git a/test/ares-test-mock.cc b/test/ares-test-mock.cc
index 29b77b1..2cbe6b4 100644
--- a/test/ares-test-mock.cc
+++ b/test/ares-test-mock.cc
@@ -647,17 +647,17 @@ TEST_P(MockChannelTest, UnspecifiedFamilyV6) {
 }
 
 TEST_P(MockChannelTest, UnspecifiedFamilyV4) {
+  DNSPacket rsp6;
+  rsp6.set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", ns_t_aaaa));
+  ON_CALL(server_, OnRequest("example.com", ns_t_aaaa))
+    .WillByDefault(SetReply(&server_, &rsp6));
   DNSPacket rsp4;
   rsp4.set_response().set_aa()
     .add_question(new DNSQuestion("example.com", ns_t_a))
     .add_answer(new DNSARR("example.com", 100, {2, 3, 4, 5}));
   ON_CALL(server_, OnRequest("example.com", ns_t_a))
     .WillByDefault(SetReply(&server_, &rsp4));
-  DNSPacket rsp6;
-  rsp6.set_response().set_aa()
-    .add_question(new DNSQuestion("example.com", ns_t_aaaa));
-  ON_CALL(server_, OnRequest("example.com", ns_t_aaaa))
-    .WillByDefault(SetReply(&server_, &rsp6));
 
   HostResult result;
   ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result);
@@ -669,17 +669,40 @@ TEST_P(MockChannelTest, UnspecifiedFamilyV4) {
 }
 
 TEST_P(MockChannelTest, UnspecifiedFamilyNoData) {
+  DNSPacket rsp6;
+  rsp6.set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", ns_t_aaaa))
+    .add_answer(new DNSCnameRR("example.com", 100, "elsewhere.com"));
+  ON_CALL(server_, OnRequest("example.com", ns_t_aaaa))
+    .WillByDefault(SetReply(&server_, &rsp6));
   DNSPacket rsp4;
   rsp4.set_response().set_aa()
     .add_question(new DNSQuestion("example.com", ns_t_a));
   ON_CALL(server_, OnRequest("example.com", ns_t_a))
     .WillByDefault(SetReply(&server_, &rsp4));
+
+  HostResult result;
+  ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result);
+  Process();
+  EXPECT_TRUE(result.done_);
+  std::stringstream ss;
+  ss << result.host_;
+  EXPECT_EQ("{'' aliases=[] addrs=[]}", ss.str());
+}
+
+TEST_P(MockChannelTest, UnspecifiedFamilyCname6A4) {
   DNSPacket rsp6;
   rsp6.set_response().set_aa()
     .add_question(new DNSQuestion("example.com", ns_t_aaaa))
     .add_answer(new DNSCnameRR("example.com", 100, "elsewhere.com"));
   ON_CALL(server_, OnRequest("example.com", ns_t_aaaa))
     .WillByDefault(SetReply(&server_, &rsp6));
+  DNSPacket rsp4;
+  rsp4.set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", ns_t_a))
+    .add_answer(new DNSARR("example.com", 100, {1, 2, 3, 4}));
+  ON_CALL(server_, OnRequest("example.com", ns_t_a))
+    .WillByDefault(SetReply(&server_, &rsp4));
 
   HostResult result;
   ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result);
@@ -687,7 +710,7 @@ TEST_P(MockChannelTest, UnspecifiedFamilyNoData) {
   EXPECT_TRUE(result.done_);
   std::stringstream ss;
   ss << result.host_;
-  EXPECT_EQ("{'' aliases=[] addrs=[]}", ss.str());
+  EXPECT_EQ("{'example.com' aliases=[] addrs=[1.2.3.4]}", ss.str());
 }
 
 TEST_P(MockChannelTest, ExplicitIP) {
diff --git a/test/ares-test.cc b/test/ares-test.cc
index 96c80b9..b86cba4 100644
--- a/test/ares-test.cc
+++ b/test/ares-test.cc
@@ -180,7 +180,7 @@ MockServer::MockServer(int family, int port, int tcpport)
     struct sockaddr_in6 addr;
     memset(&addr, 0, sizeof(addr));
     addr.sin6_family = AF_INET6;
-    addr.sin6_addr = in6addr_any;
+    memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr));  // in6addr_any
     addr.sin6_port = htons(tcpport_);
     int tcprc = bind(tcpfd_, (struct sockaddr*)&addr, sizeof(addr));
     EXPECT_EQ(0, tcprc) << "Failed to bind AF_INET6 to TCP port " << tcpport_;
diff --git a/test/dns-dump.cc b/test/dns-dump.cc
new file mode 100644
index 0000000..023de36
--- /dev/null
+++ b/test/dns-dump.cc
@@ -0,0 +1,35 @@
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <iostream>
+#include <vector>
+
+#include "dns-proto.h"
+
+namespace ares {
+
+static void ShowFile(const char* filename) {
+  int fd = open(filename, O_RDONLY);
+  if (fd < 0) {
+    std::cerr << "Failed to open '" << filename << "'" << std::endl;
+    return;
+  }
+  std::vector<unsigned char> contents;
+  while (true) {
+    unsigned char buffer[1024];
+    int len = read(fd, buffer, sizeof(buffer));
+    if (len <= 0) break;
+    contents.insert(contents.end(), buffer, buffer + len);
+  }
+  std::cout << PacketToString(contents) << std::endl;
+}
+
+}  // namespace ares
+
+int main(int argc, char* argv[]) {
+  for (int ii = 1; ii < argc; ++ii) {
+    ares::ShowFile(argv[ii]);
+  }
+}
+
diff --git a/test/dns-proto.cc b/test/dns-proto.cc
index 8814d28..8eb7f2e 100644
--- a/test/dns-proto.cc
+++ b/test/dns-proto.cc
@@ -4,6 +4,9 @@
 #include "ares.h"
 #include "ares_dns.h"
 
+#include <stdio.h>
+#include <stdlib.h>
+
 #include <sstream>
 
 namespace ares {