Update gnulib files.

33 files changed, 600 insertions, 128 deletions

diff --git a/build-aux/snippet/_Noreturn.h b/build-aux/snippet/_Noreturn.h
index 1a7b4da..c44ad89 100644
--- a/build-aux/snippet/_Noreturn.h
+++ b/build-aux/snippet/_Noreturn.h
@@ -1,4 +1,4 @@
-#ifndef _Noreturn
+#if !defined _Noreturn && __STDC_VERSION__ < 201112
 # if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
       || 0x5110 <= __SUNPRO_C)
 #  define _Noreturn __attribute__ ((__noreturn__))
diff --git a/gl/Makefile.am b/gl/Makefile.am
index 21d349f..46e6f8f 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -469,7 +469,6 @@ stdio.h: stdio.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H)
 	      -e 's/@''GNULIB_GETCHAR''@/$(GNULIB_GETCHAR)/g' \
 	      -e 's/@''GNULIB_GETDELIM''@/$(GNULIB_GETDELIM)/g' \
 	      -e 's/@''GNULIB_GETLINE''@/$(GNULIB_GETLINE)/g' \
-	      -e 's/@''GNULIB_GETS''@/$(GNULIB_GETS)/g' \
 	      -e 's/@''GNULIB_OBSTACK_PRINTF''@/$(GNULIB_OBSTACK_PRINTF)/g' \
 	      -e 's/@''GNULIB_OBSTACK_PRINTF_POSIX''@/$(GNULIB_OBSTACK_PRINTF_POSIX)/g' \
 	      -e 's/@''GNULIB_PCLOSE''@/$(GNULIB_PCLOSE)/g' \
@@ -675,6 +674,7 @@ sys/stat.h: sys_stat.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNU
 	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
 	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
 	      -e 's|@''NEXT_SYS_STAT_H''@|$(NEXT_SYS_STAT_H)|g' \
+	      -e 's|@''WINDOWS_64_BIT_ST_SIZE''@|$(WINDOWS_64_BIT_ST_SIZE)|g' \
 	      -e 's/@''GNULIB_FCHMODAT''@/$(GNULIB_FCHMODAT)/g' \
 	      -e 's/@''GNULIB_FSTAT''@/$(GNULIB_FSTAT)/g' \
 	      -e 's/@''GNULIB_FSTATAT''@/$(GNULIB_FSTATAT)/g' \
@@ -721,6 +721,31 @@ EXTRA_DIST += sys_stat.in.h
 
 ## end   gnulib module sys_stat
 
+## begin gnulib module sys_types
+
+BUILT_SOURCES += sys/types.h
+
+# We need the following in order to create <sys/types.h> when the system
+# doesn't have one that works with the given compiler.
+sys/types.h: sys_types.in.h $(top_builddir)/config.status
+	$(AM_V_at)$(MKDIR_P) sys
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
+	      -e 's|@''NEXT_SYS_TYPES_H''@|$(NEXT_SYS_TYPES_H)|g' \
+	      -e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
+	      < $(srcdir)/sys_types.in.h; \
+	} > $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += sys/types.h sys/types.h-t
+
+EXTRA_DIST += sys_types.in.h
+
+## end   gnulib module sys_types
+
 ## begin gnulib module time
 
 BUILT_SOURCES += time.h
@@ -778,6 +803,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
 	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
 	      -e 's|@''NEXT_UNISTD_H''@|$(NEXT_UNISTD_H)|g' \
+	      -e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
 	      -e 's/@''GNULIB_CHDIR''@/$(GNULIB_CHDIR)/g' \
 	      -e 's/@''GNULIB_CHOWN''@/$(GNULIB_CHOWN)/g' \
 	      -e 's/@''GNULIB_CLOSE''@/$(GNULIB_CLOSE)/g' \
@@ -876,6 +902,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''REPLACE_DUP''@|$(REPLACE_DUP)|g' \
 	      -e 's|@''REPLACE_DUP2''@|$(REPLACE_DUP2)|g' \
 	      -e 's|@''REPLACE_FCHOWNAT''@|$(REPLACE_FCHOWNAT)|g' \
+	      -e 's|@''REPLACE_FTRUNCATE''@|$(REPLACE_FTRUNCATE)|g' \
 	      -e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \
 	      -e 's|@''REPLACE_GETDOMAINNAME''@|$(REPLACE_GETDOMAINNAME)|g' \
 	      -e 's|@''REPLACE_GETLOGIN_R''@|$(REPLACE_GETLOGIN_R)|g' \
diff --git a/gl/fstat.c b/gl/fstat.c
index 4918495..ac2b1ef 100644
--- a/gl/fstat.c
+++ b/gl/fstat.c
@@ -23,6 +23,10 @@
 /* Get the original definition of fstat.  It might be defined as a macro.  */
 #include <sys/types.h>
 #include <sys/stat.h>
+#if _GL_WINDOWS_64_BIT_ST_SIZE
+# define stat _stati64
+# define fstat _fstati64
+#endif
 #undef __need_system_sys_stat_h
 
 static inline int
diff --git a/gl/ftello.c b/gl/ftello.c
index 1beb202..1f581c5 100644
--- a/gl/ftello.c
+++ b/gl/ftello.c
@@ -31,6 +31,14 @@ ftello (FILE *fp)
 # undef ftell
 # define ftello ftell
 #endif
+#if _GL_WINDOWS_64_BIT_OFF_T
+# undef ftello
+# if HAVE__FTELLI64 /* msvc, mingw64 */
+#  define ftello _ftelli64
+# else /* mingw */
+#  define ftello ftello64
+# endif
+#endif
 {
 #if LSEEK_PIPE_BROKEN
   /* mingw gives bogus answers rather than failure on non-seekable files.  */
diff --git a/gl/lseek.c b/gl/lseek.c
index cd7e2d6..794c230 100644
--- a/gl/lseek.c
+++ b/gl/lseek.c
@@ -59,5 +59,9 @@ rpl_lseek (int fd, off_t offset, int whence)
       return -1;
     }
 #endif
+#if _GL_WINDOWS_64_BIT_OFF_T
+  return _lseeki64 (fd, offset, whence);
+#else
   return lseek (fd, offset, whence);
+#endif
 }
diff --git a/gl/m4/fseeko.m4 b/gl/m4/fseeko.m4
index be5bb35..1bb88c7 100644
--- a/gl/m4/fseeko.m4
+++ b/gl/m4/fseeko.m4
@@ -1,4 +1,4 @@
-# fseeko.m4 serial 15
+# fseeko.m4 serial 16
 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -8,6 +8,7 @@ AC_DEFUN([gl_FUNC_FSEEKO],
 [
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
   AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
+  AC_REQUIRE([gl_SYS_TYPES_H])
   AC_REQUIRE([AC_PROG_CC])
 
   dnl Persuade glibc <stdio.h> to declare fseeko().
@@ -28,6 +29,9 @@ AC_DEFUN([gl_FUNC_FSEEKO],
   if test $gl_cv_func_fseeko = no; then
     HAVE_FSEEKO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FSEEKO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FSEEKO=1
     fi
@@ -59,3 +63,11 @@ AC_DEFUN([gl_STDIN_LARGE_OFFSET],
         [gl_cv_var_stdin_large_offset=yes],
         [gl_cv_var_stdin_large_offset=no])])
 ])
+
+# Prerequisites of lib/fseeko.c.
+AC_DEFUN([gl_PREREQ_FSEEKO],
+[
+  dnl Native Windows has the function _fseeki64. mingw hides it, but mingw64
+  dnl makes it usable again.
+  AC_CHECK_FUNCS([_fseeki64])
+])
diff --git a/gl/m4/fstat.m4 b/gl/m4/fstat.m4
index e3f8f3e..3ab3297 100644
--- a/gl/m4/fstat.m4
+++ b/gl/m4/fstat.m4
@@ -1,4 +1,4 @@
-# fstat.m4 serial 1
+# fstat.m4 serial 3
 dnl Copyright (C) 2011-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -7,16 +7,27 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_FSTAT],
 [
   AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
+
   AC_REQUIRE([gl_MSVC_INVAL])
   if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
     REPLACE_FSTAT=1
   fi
+
+  AC_REQUIRE([gl_HEADER_SYS_STAT_H])
+  if test $WINDOWS_64_BIT_ST_SIZE = 1; then
+    REPLACE_FSTAT=1
+  fi
+
   dnl Replace fstat() for supporting the gnulib-defined open() on directories.
   m4_ifdef([gl_FUNC_FCHDIR], [
     gl_TEST_FCHDIR
-    if test $HAVE_FCHDIR = 0 \
-       && test "$gl_cv_func_open_directory_works" != yes; then
-      REPLACE_FSTAT=1
+    if test $HAVE_FCHDIR = 0; then
+      case "$gl_cv_func_open_directory_works" in
+        *yes) ;;
+        *)
+          REPLACE_FSTAT=1
+          ;;
+      esac
     fi
   ])
 ])
diff --git a/gl/m4/ftello.m4 b/gl/m4/ftello.m4
index 42be83e..ab7b548 100644
--- a/gl/m4/ftello.m4
+++ b/gl/m4/ftello.m4
@@ -1,4 +1,4 @@
-# ftello.m4 serial 10
+# ftello.m4 serial 11
 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,6 +9,7 @@ AC_DEFUN([gl_FUNC_FTELLO],
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
   AC_REQUIRE([AC_PROG_CC])
   AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
+  AC_REQUIRE([gl_SYS_TYPES_H])
 
   dnl Persuade glibc <stdio.h> to declare ftello().
   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
@@ -30,9 +31,13 @@ AC_DEFUN([gl_FUNC_FTELLO],
   if test $gl_cv_func_ftello = no; then
     HAVE_FTELLO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FTELLO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FTELLO=1
-    else
+    fi
+    if test $REPLACE_FTELLO = 0; then
       dnl Detect bug on Solaris.
       dnl ftell and ftello produce incorrect results after putc that followed a
       dnl getc call that reached EOF on Solaris. This is because the _IOREAD
@@ -125,3 +130,11 @@ main (void)
     fi
   fi
 ])
+
+# Prerequisites of lib/ftello.c.
+AC_DEFUN([gl_PREREQ_FTELLO],
+[
+  dnl Native Windows has the function _ftelli64. mingw hides it, but mingw64
+  dnl makes it usable again.
+  AC_CHECK_FUNCS([_ftelli64])
+])
diff --git a/gl/m4/gnulib-common.m4 b/gl/m4/gnulib-common.m4
index ae4d254..d62b767 100644
--- a/gl/m4/gnulib-common.m4
+++ b/gl/m4/gnulib-common.m4
@@ -14,7 +14,8 @@ AC_DEFUN([gl_COMMON], [
 AC_DEFUN([gl_COMMON_BODY], [
   AH_VERBATIM([_Noreturn],
 [/* The _Noreturn keyword of C11.  */
-#ifndef _Noreturn
+#if ! (defined _Noreturn \
+       || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
 # if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
       || 0x5110 <= __SUNPRO_C)
 #  define _Noreturn __attribute__ ((__noreturn__))
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index c2ed433..1b4254e 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -85,6 +85,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module stdio:
   # Code from module stdlib:
   # Code from module sys_stat:
+  # Code from module sys_types:
   # Code from module time:
   # Code from module unistd:
   # Code from module update-copyright:
@@ -125,6 +126,7 @@ gl_STDIO_MODULE_INDICATOR([ftell])
 gl_FUNC_FTELLO
 if test $HAVE_FTELLO = 0 || test $REPLACE_FTELLO = 1; then
   AC_LIBOBJ([ftello])
+  gl_PREREQ_FTELLO
 fi
 gl_STDIO_MODULE_INDICATOR([ftello])
 gl_FUNC_GETOPT_GNU
@@ -158,6 +160,7 @@ m4_if(m4_version_compare([2.61a.100],
         m4_defn([m4_PACKAGE_VERSION])), [1], [],
       [AC_CONFIG_LINKS([$GNUmakefile:$GNUmakefile], [],
         [GNUmakefile=$GNUmakefile])])
+AC_REQUIRE([gl_LARGEFILE])
 gl_FUNC_LSEEK
 if test $REPLACE_LSEEK = 1; then
   AC_LIBOBJ([lseek])
@@ -196,11 +199,12 @@ gl_STDIO_H
 gl_STDLIB_H
 gl_HEADER_SYS_STAT_H
 AC_PROG_MKDIR_P
+gl_SYS_TYPES_H
+AC_PROG_MKDIR_P
 gl_HEADER_TIME_H
 gl_UNISTD_H
 gl_VALGRIND_TESTS
 gl_VERSION_ETC
-AC_SUBST([WARN_CFLAGS])
   # End of code from modules
   m4_ifval(gl_LIBSOURCES_LIST, [
     m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
@@ -378,6 +382,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/stdio.in.h
   lib/stdlib.in.h
   lib/sys_stat.in.h
+  lib/sys_types.in.h
   lib/time.in.h
   lib/unistd.in.h
   lib/version-etc-fsf.c
@@ -403,6 +408,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/msvc-nothrow.m4
   m4/multiarch.m4
   m4/nocrash.m4
+  m4/off_t.m4
   m4/read-file.m4
   m4/realloc.m4
   m4/ssize_t.m4
@@ -412,6 +418,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/stdio_h.m4
   m4/stdlib_h.m4
   m4/sys_stat_h.m4
+  m4/sys_types_h.m4
   m4/time_h.m4
   m4/unistd_h.m4
   m4/valgrind-tests.m4
diff --git a/gl/m4/largefile.m4 b/gl/m4/largefile.m4
index 1369bbe..a159f4a 100644
--- a/gl/m4/largefile.m4
+++ b/gl/m4/largefile.m4
@@ -102,3 +102,48 @@ fi
 ])# AC_SYS_LARGEFILE
 
 ])# m4_version_prereq 2.69
+
+# Enable large files on systems where this is implemented by Gnulib, not by the
+# system headers.
+# Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib
+# overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively.
+AC_DEFUN([gl_LARGEFILE],
+[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  case "$host_os" in
+    mingw*)
+      dnl Native Windows.
+      dnl mingw64 defines off_t to a 64-bit type already, if
+      dnl _FILE_OFFSET_BITS=64, which is ensured by AC_SYS_LARGEFILE.
+      AC_CACHE_CHECK([for 64-bit off_t], [gl_cv_type_off_t_64],
+        [AC_COMPILE_IFELSE(
+           [AC_LANG_PROGRAM(
+              [[#include <sys/types.h>
+                int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1];
+              ]],
+              [[]])],
+           [gl_cv_type_off_t_64=yes], [gl_cv_type_off_t_64=no])
+        ])
+      if test $gl_cv_type_off_t_64 = no; then
+        WINDOWS_64_BIT_OFF_T=1
+      else
+        WINDOWS_64_BIT_OFF_T=0
+      fi
+      dnl But all native Windows platforms (including mingw64) have a 32-bit
+      dnl st_size member in 'struct stat'.
+      WINDOWS_64_BIT_ST_SIZE=1
+      ;;
+    *)
+      dnl Nothing to do on gnulib's side.
+      dnl A 64-bit off_t is
+      dnl   - already the default on MacOS X, FreeBSD, NetBSD, OpenBSD, IRIX,
+      dnl     OSF/1, Cygwin,
+      dnl   - enabled by _FILE_OFFSET_BITS=64 (ensured by AC_SYS_LARGEFILE) on
+      dnl     glibc, HP-UX, Solaris,
+      dnl   - enabled by _LARGE_FILES=1 (ensured by AC_SYS_LARGEFILE) on AIX,
+      dnl   - impossible to achieve on Minix 3.1.8.
+      WINDOWS_64_BIT_OFF_T=0
+      WINDOWS_64_BIT_ST_SIZE=0
+      ;;
+  esac
+])
diff --git a/gl/m4/lseek.m4 b/gl/m4/lseek.m4
index 86db59e..bdda7f6 100644
--- a/gl/m4/lseek.m4
+++ b/gl/m4/lseek.m4
@@ -1,4 +1,4 @@
-# lseek.m4 serial 8
+# lseek.m4 serial 10
 dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -7,11 +7,24 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_LSEEK],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+  AC_REQUIRE([AC_CANONICAL_HOST])
   AC_REQUIRE([AC_PROG_CC])
   AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe],
-    [if test $cross_compiling = no; then
-       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+    [case "$host_os" in
+       mingw*)
+         dnl Native Windows.
+         dnl The result of lseek (fd, (off_t)0, SEEK_CUR) or
+         dnl SetFilePointer(handle, 0, NULL, FILE_CURRENT)
+         dnl for a pipe depends on the environment: In a Cygwin 1.5
+         dnl environment it succeeds (wrong); in a Cygwin 1.7 environment
+         dnl it fails with a wrong errno value.
+         gl_cv_func_lseek_pipe=no
+         ;;
+       *)
+         if test $cross_compiling = no; then
+           AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h> /* for off_t */
 #include <stdio.h> /* for SEEK_CUR */
 #if HAVE_UNISTD_H
@@ -23,26 +36,36 @@ AC_DEFUN([gl_FUNC_LSEEK],
   /* Exit with success only if stdin is seekable.  */
   return lseek (0, (off_t)0, SEEK_CUR) < 0;
 ]])],
-         [if test -s conftest$ac_exeext \
-             && ./conftest$ac_exeext < conftest.$ac_ext \
-             && test 1 = "`echo hi \
-               | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then
-            gl_cv_func_lseek_pipe=yes
-          else
-            gl_cv_func_lseek_pipe=no
-          fi],
-         [gl_cv_func_lseek_pipe=no])
-     else
-       AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) || defined __BEOS__
-/* mingw and BeOS mistakenly return 0 when trying to seek on pipes.  */
+             [if test -s conftest$ac_exeext \
+                 && ./conftest$ac_exeext < conftest.$ac_ext \
+                 && test 1 = "`echo hi \
+                   | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then
+                gl_cv_func_lseek_pipe=yes
+              else
+                gl_cv_func_lseek_pipe=no
+              fi
+             ],
+             [gl_cv_func_lseek_pipe=no])
+         else
+           AC_COMPILE_IFELSE(
+             [AC_LANG_SOURCE([[
+#if defined __BEOS__
+/* BeOS mistakenly return 0 when trying to seek on pipes.  */
   Choke me.
 #endif]])],
-         [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
-     fi])
+             [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
+         fi
+         ;;
+     esac
+    ])
   if test $gl_cv_func_lseek_pipe = no; then
     REPLACE_LSEEK=1
     AC_DEFINE([LSEEK_PIPE_BROKEN], [1],
       [Define to 1 if lseek does not detect pipes.])
   fi
+
+  AC_REQUIRE([gl_SYS_TYPES_H])
+  if test $WINDOWS_64_BIT_OFF_T = 1; then
+    REPLACE_LSEEK=1
+  fi
 ])
diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4
index d3c39f5..8fa48e9 100644
--- a/gl/m4/malloc.m4
+++ b/gl/m4/malloc.m4
@@ -1,9 +1,47 @@
-# malloc.m4 serial 13
+# malloc.m4 serial 14
 dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
+m4_version_prereq([2.70], [] ,[
+
+# This is taken from the following Autoconf patch:
+# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
+AC_DEFUN([_AC_FUNC_MALLOC_IF],
+[
+  AC_REQUIRE([AC_HEADER_STDC])dnl
+  AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+  AC_CHECK_HEADERS([stdlib.h])
+  AC_CACHE_CHECK([for GNU libc compatible malloc],
+    [ac_cv_func_malloc_0_nonnull],
+    [AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+            # include <stdlib.h>
+            #else
+            char *malloc ();
+            #endif
+          ]],
+          [[return ! malloc (0);]])
+       ],
+       [ac_cv_func_malloc_0_nonnull=yes],
+       [ac_cv_func_malloc_0_nonnull=no],
+       [case "$host_os" in
+          # Guess yes on platforms where we know the result.
+          *-gnu* | freebsd* | netbsd* | openbsd* \
+          | hpux* | solaris* | cygwin* | mingw*)
+            ac_cv_func_malloc_0_nonnull=yes ;;
+          # If we don't know, assume the worst.
+          *) ac_cv_func_malloc_0_nonnull=no ;;
+        esac
+       ])
+    ])
+  AS_IF([test $ac_cv_func_malloc_0_nonnull = yes], [$1], [$2])
+])# _AC_FUNC_MALLOC_IF
+
+])
+
 # gl_FUNC_MALLOC_GNU
 # ------------------
 # Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if
diff --git a/gl/m4/manywarnings.m4 b/gl/m4/manywarnings.m4
index fd0e372..864fc85 100644
--- a/gl/m4/manywarnings.m4
+++ b/gl/m4/manywarnings.m4
@@ -1,4 +1,4 @@
-# manywarnings.m4 serial 3
+# manywarnings.m4 serial 4
 dnl Copyright (C) 2008-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -143,7 +143,6 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
   for gl_manywarn_item in \
     -Wattributes \
     -Wcoverage-mismatch \
-    -Wmultichar \
     -Wunused-macros \
     ; do
     gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
diff --git a/gl/m4/off_t.m4 b/gl/m4/off_t.m4
new file mode 100644
index 0000000..dfca2df
--- /dev/null
+++ b/gl/m4/off_t.m4
@@ -0,0 +1,18 @@
+# off_t.m4 serial 1
+dnl Copyright (C) 2012 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Check whether to override the 'off_t' type.
+dnl Set WINDOWS_64_BIT_OFF_T.
+
+AC_DEFUN([gl_TYPE_OFF_T],
+[
+  m4_ifdef([gl_LARGEFILE], [
+    AC_REQUIRE([gl_LARGEFILE])
+  ], [
+    WINDOWS_64_BIT_OFF_T=0
+  ])
+  AC_SUBST([WINDOWS_64_BIT_OFF_T])
+])
diff --git a/gl/m4/realloc.m4 b/gl/m4/realloc.m4
index 039ed19..954c2f0 100644
--- a/gl/m4/realloc.m4
+++ b/gl/m4/realloc.m4
@@ -1,9 +1,47 @@
-# realloc.m4 serial 12
+# realloc.m4 serial 13
 dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
+m4_version_prereq([2.70], [] ,[
+
+# This is taken from the following Autoconf patch:
+# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
+AC_DEFUN([_AC_FUNC_REALLOC_IF],
+[
+  AC_REQUIRE([AC_HEADER_STDC])dnl
+  AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+  AC_CHECK_HEADERS([stdlib.h])
+  AC_CACHE_CHECK([for GNU libc compatible realloc],
+    [ac_cv_func_realloc_0_nonnull],
+    [AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+            # include <stdlib.h>
+            #else
+            char *realloc ();
+            #endif
+          ]],
+          [[return ! realloc (0, 0);]])
+       ],
+       [ac_cv_func_realloc_0_nonnull=yes],
+       [ac_cv_func_realloc_0_nonnull=no],
+       [case "$host_os" in
+          # Guess yes on platforms where we know the result.
+          *-gnu* | freebsd* | netbsd* | openbsd* \
+          | hpux* | solaris* | cygwin* | mingw*)
+            ac_cv_func_realloc_0_nonnull=yes ;;
+          # If we don't know, assume the worst.
+          *) ac_cv_func_realloc_0_nonnull=no ;;
+        esac
+       ])
+    ])
+  AS_IF([test $ac_cv_func_realloc_0_nonnull = yes], [$1], [$2])
+])# AC_FUNC_REALLOC
+
+])
+
 # gl_FUNC_REALLOC_GNU
 # -------------------
 # Test whether 'realloc (0, 0)' is handled like in GNU libc, and replace
diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4
index 1973e8d..b03393b 100644
--- a/gl/m4/stdio_h.m4
+++ b/gl/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 40
+# stdio_h.m4 serial 41
 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -18,7 +18,6 @@ AC_DEFUN([gl_STDIO_H],
   GNULIB_GETC=1
   GNULIB_GETCHAR=1
   GNULIB_FGETS=1
-  GNULIB_GETS=1
   GNULIB_FREAD=1
   dnl This ifdef is necessary to avoid an error "missing file lib/stdio-read.c"
   dnl "expected source file, required through AC_LIBSOURCES, not found". It is
@@ -72,10 +71,10 @@ AC_DEFUN([gl_STDIO_H],
 
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use, and which is not
-  dnl guaranteed by C89.
+  dnl guaranteed by both C89 and C11.
   gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
-    ]], [dprintf fpurge fseeko ftello getdelim getline pclose popen renameat
-    snprintf tmpfile vdprintf vsnprintf])
+    ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen
+    renameat snprintf tmpfile vdprintf vsnprintf])
 ])
 
 AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
@@ -113,7 +112,6 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   GNULIB_GETCHAR=0;              AC_SUBST([GNULIB_GETCHAR])
   GNULIB_GETDELIM=0;             AC_SUBST([GNULIB_GETDELIM])
   GNULIB_GETLINE=0;              AC_SUBST([GNULIB_GETLINE])
-  GNULIB_GETS=0;                 AC_SUBST([GNULIB_GETS])
   GNULIB_OBSTACK_PRINTF=0;       AC_SUBST([GNULIB_OBSTACK_PRINTF])
   GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
   GNULIB_PCLOSE=0;               AC_SUBST([GNULIB_PCLOSE])
diff --git a/gl/m4/sys_stat_h.m4 b/gl/m4/sys_stat_h.m4
index a0b96bc..f45dee1 100644
--- a/gl/m4/sys_stat_h.m4
+++ b/gl/m4/sys_stat_h.m4
@@ -1,4 +1,4 @@
-# sys_stat_h.m4 serial 26   -*- Autoconf -*-
+# sys_stat_h.m4 serial 27   -*- Autoconf -*-
 dnl Copyright (C) 2006-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -22,6 +22,19 @@ AC_DEFUN([gl_HEADER_SYS_STAT_H],
   dnl Ensure the type mode_t gets defined.
   AC_REQUIRE([AC_TYPE_MODE_T])
 
+  dnl Whether to override 'struct stat'.
+  m4_ifdef([gl_LARGEFILE], [
+    AC_REQUIRE([gl_LARGEFILE])
+  ], [
+    WINDOWS_64_BIT_ST_SIZE=0
+  ])
+  AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
+  if test $WINDOWS_64_BIT_ST_SIZE = 1; then
+    AC_DEFINE([_GL_WINDOWS_64_BIT_ST_SIZE], [1],
+      [Define to 1 if Gnulib overrides 'struct stat' on Windows so that
+       struct stat.st_size becomes 64-bit.])
+  fi
+
   dnl Define types that are supposed to be defined in <sys/types.h> or
   dnl <sys/stat.h>.
   AC_CHECK_TYPE([nlink_t], [],
diff --git a/gl/m4/sys_types_h.m4 b/gl/m4/sys_types_h.m4
new file mode 100644
index 0000000..f11eef2
--- /dev/null
+++ b/gl/m4/sys_types_h.m4
@@ -0,0 +1,24 @@
+# sys_types_h.m4 serial 4
+dnl Copyright (C) 2011-2012 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_SYS_TYPES_H],
+[
+  AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
+  gl_NEXT_HEADERS([sys/types.h])
+
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
+  dnl Ensure the type mode_t gets defined.
+  AC_REQUIRE([AC_TYPE_MODE_T])
+
+  dnl Whether to override the 'off_t' type.
+  AC_REQUIRE([gl_TYPE_OFF_T])
+])
+
+AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
+[
+])
diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4
index 7595534..7e7651b 100644
--- a/gl/m4/unistd_h.m4
+++ b/gl/m4/unistd_h.m4
@@ -1,4 +1,4 @@
-# unistd_h.m4 serial 63
+# unistd_h.m4 serial 65
 dnl Copyright (C) 2006-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -24,6 +24,9 @@ AC_DEFUN([gl_UNISTD_H],
   dnl Ensure the type pid_t gets defined.
   AC_REQUIRE([AC_TYPE_PID_T])
 
+  dnl Determine WINDOWS_64_BIT_OFF_T.
+  AC_REQUIRE([gl_TYPE_OFF_T])
+
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[
@@ -155,6 +158,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
   REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
+  REPLACE_FTRUNCATE=0;    AC_SUBST([REPLACE_FTRUNCATE])
   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
   REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
   REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
diff --git a/gl/m4/warn-on-use.m4 b/gl/m4/warn-on-use.m4
index 03b113c..a77802e 100644
--- a/gl/m4/warn-on-use.m4
+++ b/gl/m4/warn-on-use.m4
@@ -1,4 +1,4 @@
-# warn-on-use.m4 serial 4
+# warn-on-use.m4 serial 5
 dnl Copyright (C) 2010-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -18,8 +18,8 @@ dnl with or without modifications, as long as this notice is preserved.
 # some systems declare functions in the wrong header, then INCLUDES
 # should do likewise.
 #
-# If you assume C89, then it is generally safe to assume declarations
-# for functions declared in that standard (such as gets) without
+# It is generally safe to assume declarations for functions declared
+# in the intersection of C89 and C11 (such as printf) without
 # needing gl_WARN_ON_USE_PREPARE.
 AC_DEFUN([gl_WARN_ON_USE_PREPARE],
 [
diff --git a/gl/m4/warnings.m4 b/gl/m4/warnings.m4
index 69d05a6..28b8294 100644
--- a/gl/m4/warnings.m4
+++ b/gl/m4/warnings.m4
@@ -1,4 +1,4 @@
-# warnings.m4 serial 5
+# warnings.m4 serial 7
 dnl Copyright (C) 2008-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -14,24 +14,48 @@ m4_ifdef([AS_VAR_APPEND],
 [m4_define([gl_AS_VAR_APPEND],
 [AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])])
 
-# gl_WARN_ADD(PARAMETER, [VARIABLE = WARN_CFLAGS])
-# ------------------------------------------------
-# Adds parameter to WARN_CFLAGS if the compiler supports it.  For example,
-# gl_WARN_ADD([-Wparentheses]).
-AC_DEFUN([gl_WARN_ADD],
-dnl FIXME: gl_Warn must be used unquoted until we can assume
-dnl autoconf 2.64 or newer.
-[AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_$1])dnl
-AC_CACHE_CHECK([whether compiler handles $1], m4_defn([gl_Warn]), [
-  gl_save_CPPFLAGS="$CPPFLAGS"
-  CPPFLAGS="${CPPFLAGS} $1"
-  AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
+
+# gl_COMPILER_OPTION_IF(OPTION, [IF-SUPPORTED], [IF-NOT-SUPPORTED],
+#                       [PROGRAM = AC_LANG_PROGRAM()])
+# -----------------------------------------------------------------
+# Check if the compiler supports OPTION when compiling PROGRAM.
+#
+# FIXME: gl_Warn must be used unquoted until we can assume Autoconf
+# 2.64 or newer.
+AC_DEFUN([gl_COMPILER_OPTION_IF],
+[AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_[]_AC_LANG_ABBREV[]_$1])dnl
+AS_VAR_PUSHDEF([gl_Flags], [_AC_LANG_PREFIX[]FLAGS])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler handles $1], m4_defn([gl_Warn]), [
+  gl_save_compiler_FLAGS="$gl_Flags"
+  gl_AS_VAR_APPEND(m4_defn([gl_Flags]), [" $1"])
+  AC_COMPILE_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([])])],
                     [AS_VAR_SET(gl_Warn, [yes])],
                     [AS_VAR_SET(gl_Warn, [no])])
-  CPPFLAGS="$gl_save_CPPFLAGS"
+  gl_Flags="$gl_save_compiler_FLAGS"
 ])
-AS_VAR_IF(gl_Warn, [yes],
-  [gl_AS_VAR_APPEND(m4_if([$2], [], [[WARN_CFLAGS]], [[$2]]), [" $1"])])
+AS_VAR_IF(gl_Warn, [yes], [$2], [$3])
+AS_VAR_POPDEF([gl_Flags])dnl
 AS_VAR_POPDEF([gl_Warn])dnl
-m4_ifval([$2], [AS_LITERAL_IF([$2], [AC_SUBST([$2])], [])])dnl
 ])
+
+
+# gl_WARN_ADD(OPTION, [VARIABLE = WARN_CFLAGS],
+#             [PROGRAM = AC_LANG_PROGRAM()])
+# ---------------------------------------------
+# Adds parameter to WARN_CFLAGS if the compiler supports it when
+# compiling PROGRAM.  For example, gl_WARN_ADD([-Wparentheses]).
+#
+# If VARIABLE is a variable name, AC_SUBST it.
+AC_DEFUN([gl_WARN_ADD],
+[gl_COMPILER_OPTION_IF([$1],
+  [gl_AS_VAR_APPEND(m4_if([$2], [], [[WARN_CFLAGS]], [[$2]]), [" $1"])],
+  [],
+  [$3])
+m4_ifval([$2],
+         [AS_LITERAL_IF([$2], [AC_SUBST([$2])])],
+         [AC_SUBST([WARN_CFLAGS])])dnl
+])
+
+# Local Variables:
+# mode: autoconf
+# End:
diff --git a/gl/stdint.in.h b/gl/stdint.in.h
index 8e4c822..59c00d5 100644
--- a/gl/stdint.in.h
+++ b/gl/stdint.in.h
@@ -90,7 +90,8 @@
 # include <sys/types.h>
 #endif
 
-/* Get LONG_MIN, LONG_MAX, ULONG_MAX.  */
+/* Get SCHAR_MIN, SCHAR_MAX, UCHAR_MAX, INT_MIN, INT_MAX,
+   LONG_MIN, LONG_MAX, ULONG_MAX.  */
 #include <limits.h>
 
 #if @HAVE_INTTYPES_H@
@@ -246,8 +247,9 @@ typedef unsigned long long int gl_uint64_t;
 
 /* Here we assume a standard architecture where the hardware integer
    types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
-   are taken from the same list of types.  Assume that 'long int'
-   is fast enough for all narrower integers.  */
+   are taken from the same list of types.  The following code normally
+   uses types consistent with glibc, as that lessens the chance of
+   incompatibility with older GNU hosts.  */
 
 #undef int_fast8_t
 #undef uint_fast8_t
@@ -257,12 +259,21 @@ typedef unsigned long long int gl_uint64_t;
 #undef uint_fast32_t
 #undef int_fast64_t
 #undef uint_fast64_t
-typedef long int gl_int_fast8_t;
-typedef unsigned long int gl_uint_fast8_t;
-typedef long int gl_int_fast16_t;
-typedef unsigned long int gl_uint_fast16_t;
+typedef signed char gl_int_fast8_t;
+typedef unsigned char gl_uint_fast8_t;
+
+#ifdef __sun
+/* Define types compatible with SunOS 5.10, so that code compiled under
+   earlier SunOS versions works with code compiled under SunOS 5.10.  */
+typedef int gl_int_fast32_t;
+typedef unsigned int gl_uint_fast32_t;
+#else
 typedef long int gl_int_fast32_t;
 typedef unsigned long int gl_uint_fast32_t;
+#endif
+typedef gl_int_fast32_t gl_int_fast16_t;
+typedef gl_uint_fast32_t gl_uint_fast16_t;
+
 #define int_fast8_t gl_int_fast8_t
 #define uint_fast8_t gl_uint_fast8_t
 #define int_fast16_t gl_int_fast16_t
@@ -418,23 +429,29 @@ typedef int _verify_intmax_size[sizeof (intmax_t) == sizeof (uintmax_t)
 #undef INT_FAST8_MIN
 #undef INT_FAST8_MAX
 #undef UINT_FAST8_MAX
-#define INT_FAST8_MIN  LONG_MIN
-#define INT_FAST8_MAX  LONG_MAX
-#define UINT_FAST8_MAX  ULONG_MAX
+#define INT_FAST8_MIN  SCHAR_MIN
+#define INT_FAST8_MAX  SCHAR_MAX
+#define UINT_FAST8_MAX  UCHAR_MAX
 
 #undef INT_FAST16_MIN
 #undef INT_FAST16_MAX
 #undef UINT_FAST16_MAX
-#define INT_FAST16_MIN  LONG_MIN
-#define INT_FAST16_MAX  LONG_MAX
-#define UINT_FAST16_MAX  ULONG_MAX
+#define INT_FAST16_MIN  INT_FAST32_MIN
+#define INT_FAST16_MAX  INT_FAST32_MAX
+#define UINT_FAST16_MAX  UINT_FAST32_MAX
 
 #undef INT_FAST32_MIN
 #undef INT_FAST32_MAX
 #undef UINT_FAST32_MAX
-#define INT_FAST32_MIN  LONG_MIN
-#define INT_FAST32_MAX  LONG_MAX
-#define UINT_FAST32_MAX  ULONG_MAX
+#ifdef __sun
+# define INT_FAST32_MIN  INT_MIN
+# define INT_FAST32_MAX  INT_MAX
+# define UINT_FAST32_MAX  UINT_MAX
+#else
+# define INT_FAST32_MIN  LONG_MIN
+# define INT_FAST32_MAX  LONG_MAX
+# define UINT_FAST32_MAX  ULONG_MAX
+#endif
 
 #undef INT_FAST64_MIN
 #undef INT_FAST64_MAX
diff --git a/gl/stdio.in.h b/gl/stdio.in.h
index 9dc7c4a..b1b543d 100644
--- a/gl/stdio.in.h
+++ b/gl/stdio.in.h
@@ -52,7 +52,8 @@
 #include <stddef.h>
 
 /* Get off_t and ssize_t.  Needed on many systems, including glibc 2.8
-   and eglibc 2.11.2.  */
+   and eglibc 2.11.2.
+   May also define off_t to a 64-bit type on native Windows.  */
 #include <sys/types.h>
 
 /* The __attribute__ feature is available in gcc versions 2.5 and later.
@@ -698,22 +699,11 @@ _GL_WARN_ON_USE (getline, "getline is unportable - "
 # endif
 #endif
 
-#if @GNULIB_GETS@
-# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef gets
-#   define gets rpl_gets
-#  endif
-_GL_FUNCDECL_RPL (gets, char *, (char *s) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (gets, char *, (char *s));
-# else
-_GL_CXXALIAS_SYS (gets, char *, (char *s));
-#  undef gets
-# endif
-_GL_CXXALIASWARN (gets);
 /* It is very rare that the developer ever has full control of stdin,
-   so any use of gets warrants an unconditional warning.  Assume it is
-   always declared, since it is required by C89.  */
+   so any use of gets warrants an unconditional warning; besides, C11
+   removed it.  */
+#undef gets
+#if HAVE_RAW_DECL_GETS
 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
 #endif
 
@@ -1053,9 +1043,9 @@ _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
 # endif
 #endif
 
-/* Some people would argue that sprintf should be handled like gets
-   (for example, OpenBSD issues a link warning for both functions),
-   since both can cause security holes due to buffer overruns.
+/* Some people would argue that all sprintf uses should be warned about
+   (for example, OpenBSD issues a link warning for it),
+   since it can cause security holes due to buffer overruns.
    However, we believe that sprintf can be used safely, and is more
    efficient than snprintf in those safe cases; and as proof of our
    belief, we use sprintf in several gnulib modules.  So this header
diff --git a/gl/stdlib.in.h b/gl/stdlib.in.h
index e92a614..b546133 100644
--- a/gl/stdlib.in.h
+++ b/gl/stdlib.in.h
@@ -94,6 +94,14 @@ struct random_data
 # include <unistd.h>
 #endif
 
+/* The __attribute__ feature is available in gcc versions 2.5 and later.
+   The attribute __pure__ was added in gcc 2.96.  */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
+#else
+# define _GL_ATTRIBUTE_PURE /* empty */
+#endif
+
 /* The definition of _Noreturn is copied here.  */
 
 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
@@ -138,7 +146,9 @@ _GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
 /* Parse a signed decimal integer.
    Returns the value of the integer.  Errors are not detected.  */
 # if !@HAVE_ATOLL@
-_GL_FUNCDECL_SYS (atoll, long long, (const char *string) _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_SYS (atoll, long long, (const char *string)
+                                    _GL_ATTRIBUTE_PURE
+                                    _GL_ARG_NONNULL ((1)));
 # endif
 _GL_CXXALIAS_SYS (atoll, long long, (const char *string));
 _GL_CXXALIASWARN (atoll);
diff --git a/gl/sys_stat.in.h b/gl/sys_stat.in.h
index e4331c7..2efc1e9 100644
--- a/gl/sys_stat.in.h
+++ b/gl/sys_stat.in.h
@@ -35,7 +35,8 @@
 
 #ifndef _@GUARD_PREFIX@_SYS_STAT_H
 
-/* Get nlink_t.  */
+/* Get nlink_t.
+   May also define off_t to a 64-bit type on native Windows.  */
 #include <sys/types.h>
 
 /* Get struct timespec.  */
@@ -66,6 +67,11 @@
 # include <io.h>
 #endif
 
+/* Large File Support on native Windows.  */
+#if @WINDOWS_64_BIT_ST_SIZE@
+# define stat _stati64
+#endif
+
 #ifndef S_IFIFO
 # ifdef _S_IFIFO
 #  define S_IFIFO _S_IFIFO
@@ -335,6 +341,9 @@ _GL_CXXALIAS_RPL (fstat, int, (int fd, struct stat *buf));
 _GL_CXXALIAS_SYS (fstat, int, (int fd, struct stat *buf));
 # endif
 _GL_CXXALIASWARN (fstat);
+#elif @WINDOWS_64_BIT_ST_SIZE@
+/* Above, we define stat to _stati64.  */
+# define fstat _fstati64
 #elif defined GNULIB_POSIXCHECK
 # undef fstat
 # if HAVE_RAW_DECL_FSTAT
@@ -620,6 +629,28 @@ _GL_WARN_ON_USE (mknodat, "mknodat is not portable - "
        so we have to replace stat64() instead of stat(). */
 #   undef stat64
 #   define stat64(name, st) rpl_stat (name, st)
+#  elif @WINDOWS_64_BIT_ST_SIZE@
+    /* Above, we define stat to _stati64.  */
+#   if defined __MINGW32__ && defined _stati64
+#    ifndef _USE_32BIT_TIME_T
+      /* The system headers define _stati64 to _stat64.  */
+#     undef _stat64
+#     define _stat64(name, st) rpl_stat (name, st)
+#    endif
+#   elif defined _MSC_VER && defined _stati64
+#    ifdef _USE_32BIT_TIME_T
+      /* The system headers define _stati64 to _stat32i64.  */
+#     undef _stat32i64
+#     define _stat32i64(name, st) rpl_stat (name, st)
+#    else
+      /* The system headers define _stati64 to _stat64.  */
+#     undef _stat64
+#     define _stat64(name, st) rpl_stat (name, st)
+#    endif
+#   else
+#    undef _stati64
+#    define _stati64(name, st) rpl_stat (name, st)
+#   endif
 #  elif defined __MINGW32__ && defined stat
 #   ifdef _USE_32BIT_TIME_T
      /* The system headers define stat to _stat32i64.  */
diff --git a/gl/sys_types.in.h b/gl/sys_types.in.h
new file mode 100644
index 0000000..8139d98
--- /dev/null
+++ b/gl/sys_types.in.h
@@ -0,0 +1,51 @@
+/* Provide a more complete sys/types.h.
+
+   Copyright (C) 2011-2012 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+@PRAGMA_COLUMNS@
+
+#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_SYS_TYPES_H@
+
+#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
+#define _@GUARD_PREFIX@_SYS_TYPES_H
+
+/* Override off_t if Large File Support is requested on native Windows.  */
+#if @WINDOWS_64_BIT_OFF_T@
+/* Same as int64_t in <stdint.h>.  */
+# if defined _MSC_VER
+#  define off_t __int64
+# else
+#  define off_t long long int
+# endif
+/* Indicator, for gnulib internal purposes.  */
+# define _GL_WINDOWS_64_BIT_OFF_T 1
+#endif
+
+/* MSVC 9 defines size_t in <stddef.h>, not in <sys/types.h>.  */
+/* But avoid namespace pollution on glibc systems.  */
+#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) \
+    && ! defined __GLIBC__
+# include <stddef.h>
+#endif
+
+#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
+#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
diff --git a/gl/unistd.in.h b/gl/unistd.in.h
index 1b26c09..9115486 100644
--- a/gl/unistd.in.h
+++ b/gl/unistd.in.h
@@ -107,8 +107,9 @@
 # include <netdb.h>
 #endif
 
-/* MSVC defines off_t in <sys/types.h>.  */
-#if !@HAVE_UNISTD_H@
+/* MSVC defines off_t in <sys/types.h>.
+   May also define off_t to a 64-bit type on native Windows.  */
+#if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
 /* Get off_t.  */
 # include <sys/types.h>
 #endif
@@ -562,10 +563,19 @@ _GL_WARN_ON_USE (fsync, "fsync is unportable - "
    Return 0 if successful, otherwise -1 and errno set.
    See the POSIX:2008 specification
    <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */
-# if !@HAVE_FTRUNCATE@
+# if @REPLACE_FTRUNCATE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef ftruncate
+#   define ftruncate rpl_ftruncate
+#  endif
+_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
+_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
+# else
+#  if !@HAVE_FTRUNCATE@
 _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
-# endif
+#  endif
 _GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
+# endif
 _GL_CXXALIASWARN (ftruncate);
 #elif defined GNULIB_POSIXCHECK
 # undef ftruncate
diff --git a/lib/gllib/stdint.in.h b/lib/gllib/stdint.in.h
index de38072..3475dbe 100644
--- a/lib/gllib/stdint.in.h
+++ b/lib/gllib/stdint.in.h
@@ -90,7 +90,8 @@
 # include <sys/types.h>
 #endif
 
-/* Get LONG_MIN, LONG_MAX, ULONG_MAX.  */
+/* Get SCHAR_MIN, SCHAR_MAX, UCHAR_MAX, INT_MIN, INT_MAX,
+   LONG_MIN, LONG_MAX, ULONG_MAX.  */
 #include <limits.h>
 
 #if @HAVE_INTTYPES_H@
@@ -246,8 +247,9 @@ typedef unsigned long long int gl_uint64_t;
 
 /* Here we assume a standard architecture where the hardware integer
    types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
-   are taken from the same list of types.  Assume that 'long int'
-   is fast enough for all narrower integers.  */
+   are taken from the same list of types.  The following code normally
+   uses types consistent with glibc, as that lessens the chance of
+   incompatibility with older GNU hosts.  */
 
 #undef int_fast8_t
 #undef uint_fast8_t
@@ -257,12 +259,21 @@ typedef unsigned long long int gl_uint64_t;
 #undef uint_fast32_t
 #undef int_fast64_t
 #undef uint_fast64_t
-typedef long int gl_int_fast8_t;
-typedef unsigned long int gl_uint_fast8_t;
-typedef long int gl_int_fast16_t;
-typedef unsigned long int gl_uint_fast16_t;
+typedef signed char gl_int_fast8_t;
+typedef unsigned char gl_uint_fast8_t;
+
+#ifdef __sun
+/* Define types compatible with SunOS 5.10, so that code compiled under
+   earlier SunOS versions works with code compiled under SunOS 5.10.  */
+typedef int gl_int_fast32_t;
+typedef unsigned int gl_uint_fast32_t;
+#else
 typedef long int gl_int_fast32_t;
 typedef unsigned long int gl_uint_fast32_t;
+#endif
+typedef gl_int_fast32_t gl_int_fast16_t;
+typedef gl_uint_fast32_t gl_uint_fast16_t;
+
 #define int_fast8_t gl_int_fast8_t
 #define uint_fast8_t gl_uint_fast8_t
 #define int_fast16_t gl_int_fast16_t
@@ -418,23 +429,29 @@ typedef int _verify_intmax_size[sizeof (intmax_t) == sizeof (uintmax_t)
 #undef INT_FAST8_MIN
 #undef INT_FAST8_MAX
 #undef UINT_FAST8_MAX
-#define INT_FAST8_MIN  LONG_MIN
-#define INT_FAST8_MAX  LONG_MAX
-#define UINT_FAST8_MAX  ULONG_MAX
+#define INT_FAST8_MIN  SCHAR_MIN
+#define INT_FAST8_MAX  SCHAR_MAX
+#define UINT_FAST8_MAX  UCHAR_MAX
 
 #undef INT_FAST16_MIN
 #undef INT_FAST16_MAX
 #undef UINT_FAST16_MAX
-#define INT_FAST16_MIN  LONG_MIN
-#define INT_FAST16_MAX  LONG_MAX
-#define UINT_FAST16_MAX  ULONG_MAX
+#define INT_FAST16_MIN  INT_FAST32_MIN
+#define INT_FAST16_MAX  INT_FAST32_MAX
+#define UINT_FAST16_MAX  UINT_FAST32_MAX
 
 #undef INT_FAST32_MIN
 #undef INT_FAST32_MAX
 #undef UINT_FAST32_MAX
-#define INT_FAST32_MIN  LONG_MIN
-#define INT_FAST32_MAX  LONG_MAX
-#define UINT_FAST32_MAX  ULONG_MAX
+#ifdef __sun
+# define INT_FAST32_MIN  INT_MIN
+# define INT_FAST32_MAX  INT_MAX
+# define UINT_FAST32_MAX  UINT_MAX
+#else
+# define INT_FAST32_MIN  LONG_MIN
+# define INT_FAST32_MAX  LONG_MAX
+# define UINT_FAST32_MAX  ULONG_MAX
+#endif
 
 #undef INT_FAST64_MIN
 #undef INT_FAST64_MAX
diff --git a/lib/gllib/string.in.h b/lib/gllib/string.in.h
index 26652d3..ed187c9 100644
--- a/lib/gllib/string.in.h
+++ b/lib/gllib/string.in.h
@@ -724,10 +724,14 @@ _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define mbslen rpl_mbslen
 #  endif
-_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string)
+                                  _GL_ATTRIBUTE_PURE
+                                  _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string));
 # else
-_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string)
+                                  _GL_ATTRIBUTE_PURE
+                                  _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string));
 # endif
 _GL_CXXALIASWARN (mbslen);
@@ -737,6 +741,7 @@ _GL_CXXALIASWARN (mbslen);
 /* Return the number of multibyte characters in the character string starting
    at STRING and ending at STRING + LEN.  */
 _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1));
 #endif
 
@@ -750,10 +755,12 @@ _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
 #   define mbschr rpl_mbschr /* avoid collision with HP-UX function */
 #  endif
 _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c)
+                                  _GL_ATTRIBUTE_PURE
                                   _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c));
 # else
 _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c)
+                                  _GL_ATTRIBUTE_PURE
                                   _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c));
 # endif
@@ -770,10 +777,12 @@ _GL_CXXALIASWARN (mbschr);
 #   define mbsrchr rpl_mbsrchr /* avoid collision with system function */
 #  endif
 _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c)
+                                   _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c));
 # else
 _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c)
+                                   _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c));
 # endif
@@ -786,6 +795,7 @@ _GL_CXXALIASWARN (mbsrchr);
    Unlike strstr(), this function works correctly in multibyte locales with
    encodings different from UTF-8.  */
 _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -797,6 +807,7 @@ _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
    different lengths!
    Unlike strcasecmp(), this function works correctly in multibyte locales.  */
 _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -811,6 +822,7 @@ _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2)
    Unlike strncasecmp(), this function works correctly in multibyte locales.
    But beware that N is not a byte count but a character count!  */
 _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -824,6 +836,7 @@ _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
    Unlike strncasecmp(), this function works correctly in multibyte
    locales.  */
 _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -834,6 +847,7 @@ _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
    strlen (haystack) < strlen (needle) !
    Unlike strcasestr(), this function works correctly in multibyte locales.  */
 _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -844,6 +858,7 @@ _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
    if none exists.
    Unlike strcspn(), this function works correctly in multibyte locales.  */
 _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -857,10 +872,12 @@ _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept)
 #   define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
 #  endif
 _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept)
+                                   _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1, 2)));
 _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept));
 # else
 _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept)
+                                   _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1, 2)));
 _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept));
 # endif
@@ -874,6 +891,7 @@ _GL_CXXALIASWARN (mbspbrk);
    if none exists.
    Unlike strspn(), this function works correctly in multibyte locales.  */
 _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject)
+     _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
 #endif
 
@@ -993,6 +1011,7 @@ _GL_WARN_ON_USE (strsignal, "strsignal is unportable - "
 #if @GNULIB_STRVERSCMP@
 # if !@HAVE_STRVERSCMP@
 _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *)
+                                   _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1, 2)));
 # endif
 _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *));
diff --git a/lib/glm4/gnulib-common.m4 b/lib/glm4/gnulib-common.m4
index ae4d254..d62b767 100644
--- a/lib/glm4/gnulib-common.m4
+++ b/lib/glm4/gnulib-common.m4
@@ -14,7 +14,8 @@ AC_DEFUN([gl_COMMON], [
 AC_DEFUN([gl_COMMON_BODY], [
   AH_VERBATIM([_Noreturn],
 [/* The _Noreturn keyword of C11.  */
-#ifndef _Noreturn
+#if ! (defined _Noreturn \
+       || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
 # if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
       || 0x5110 <= __SUNPRO_C)
 #  define _Noreturn __attribute__ ((__noreturn__))
diff --git a/lib/glm4/warn-on-use.m4 b/lib/glm4/warn-on-use.m4
index 03b113c..a77802e 100644
--- a/lib/glm4/warn-on-use.m4
+++ b/lib/glm4/warn-on-use.m4
@@ -1,4 +1,4 @@
-# warn-on-use.m4 serial 4
+# warn-on-use.m4 serial 5
 dnl Copyright (C) 2010-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -18,8 +18,8 @@ dnl with or without modifications, as long as this notice is preserved.
 # some systems declare functions in the wrong header, then INCLUDES
 # should do likewise.
 #
-# If you assume C89, then it is generally safe to assume declarations
-# for functions declared in that standard (such as gets) without
+# It is generally safe to assume declarations for functions declared
+# in the intersection of C89 and C11 (such as printf) without
 # needing gl_WARN_ON_USE_PREPARE.
 AC_DEFUN([gl_WARN_ON_USE_PREPARE],
 [
diff --git a/maint.mk b/maint.mk
index 951b358..11cb6a6 100644
--- a/maint.mk
+++ b/maint.mk
@@ -279,7 +279,7 @@ define _sc_search_regexp
    if test -n "$$files"; then						\
      if test -n "$$prohibit"; then					\
        grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" $$files \
-         | grep -vE "$${exclude-^$$}"					\
+         | grep -vE "$${exclude:-^$$}"					\
          && { msg="$$halt" $(_sc_say_and_exit) } || :;			\
      else								\
        grep $$with_grep_options $(_ignore_case) -LE "$$require" $$files \
@@ -332,6 +332,14 @@ sc_prohibit_strcmp:
 	halt='$(ME): replace strcmp calls above with STREQ/STRNEQ'	\
 	  $(_sc_search_regexp)
 
+# Really.  You don't want to use this function.
+# It may fail to NUL-terminate the destination,
+# and always NUL-pads out to the specified length.
+sc_prohibit_strncpy:
+	@prohibit='\<strncpy *\('					\
+	halt='do not use strncpy, period'				\
+	  $(_sc_search_regexp)
+
 # Pass EXIT_*, not number, to usage, exit, and error (when exiting)
 # Convert all uses automatically, via these two commands:
 # git grep -l '\<exit *(1)' \
@@ -932,8 +940,15 @@ sc_prohibit_doubled_word:
 # A regular expression matching undesirable combinations of words like
 # "can not"; this matches them even when the two words appear on different
 # lines, but not when there is an intervening delimiter like "#" or "*".
+# Similarly undesirable, "See @xref{...}", since an @xref should start
+# a sentence.  Explicitly prohibit any prefix of "see" or "also".
+# Also prohibit a prefix matching "\w+ +".
+# @pxref gets the same see/also treatment and should be parenthesized;
+# presume it must *not* start a sentence.
+bad_xref_re_ ?= (?:[\w,:;] +|(?:see|also)\s+)\@xref\{
+bad_pxref_re_ ?= (?:[.!?]|(?:see|also))\s+\@pxref\{
 prohibit_undesirable_word_seq_RE_ ?=					\
-  /\bcan\s+not\b/gims
+  /(?:\bcan\s+not\b|$(bad_xref_re_)|$(bad_pxref_re_))/gims
 prohibit_undesirable_word_seq_ =					\
     -e 'while ($(prohibit_undesirable_word_seq_RE_))'			\
     $(perl_filename_lineno_text_)
@@ -1227,7 +1242,7 @@ bootstrap-tools ?= autoconf,automake,gnulib
 gpg_key_ID ?= \
   $$(git cat-file tag v$(VERSION) \
      | gpgv --status-fd 1 --keyring /dev/null - - 2>/dev/null \
-     | sed -n '/^\[GNUPG:\] ERRSIG /{s///;s/ .*//p;q}')
+     | awk '/^\[GNUPG:\] ERRSIG / {print $3; exit}')
 
 translation_project_ ?= coordinator@translationproject.org
 
@@ -1407,7 +1422,7 @@ refresh-po:
 	wget --no-verbose --directory-prefix $(PODIR) --no-directories --recursive --level 1 --accept .po --accept .po.1 $(POURL) && \
 	echo 'en@boldquot' > $(PODIR)/LINGUAS && \
 	echo 'en@quot' >> $(PODIR)/LINGUAS && \
-	ls $(PODIR)/*.po | sed 's/\.po//' | sed 's,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS
+	ls $(PODIR)/*.po | sed 's/\.po//;s,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS
 
  # Running indent once is not idempotent, but running it twice is.
 INDENT_SOURCES ?= $(C_SOURCES)