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Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..0e56441 --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,129 @@ +dnl acinclude.m4 -- Extra macros needed for GNU make. +dnl +dnl Automake will incorporate this into its generated aclocal.m4. +dnl Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, +dnl 2008, 2009, 2010 Free Software Foundation, Inc. +dnl This file is part of GNU Make. +dnl +dnl GNU Make is free software; you can redistribute it and/or modify it under +dnl the terms of the GNU General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your option) +dnl any later version. +dnl +dnl GNU Make is distributed in the hope that it will be useful, but WITHOUT +dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for. +dnl more details. +dnl +dnl You should have received a copy of the GNU General Public License along +dnl with this program. If not, see <http://www.gnu.org/licenses/>. + +dnl --------------------------------------------------------------------------- +dnl Got this from the lynx 2.8 distribution. +dnl by T.E.Dickey <dickey@clark.net> +dnl and Jim Spath <jspath@mail.bcpl.lib.md.us> +dnl and Philippe De Muyter <phdm@macqel.be> +dnl +dnl Created: 1997/1/28 +dnl Updated: 1997/12/23 +dnl --------------------------------------------------------------------------- +dnl After checking for functions in the default $LIBS, make a further check +dnl for the functions that are netlib-related (these aren't always in the +dnl libc, etc., and have to be handled specially because there are conflicting +dnl and broken implementations. +dnl Common library requirements (in order): +dnl -lresolv -lsocket -lnsl +dnl -lnsl -lsocket +dnl -lsocket +dnl -lbsd +AC_DEFUN([CF_NETLIBS],[ +cf_test_netlibs=no +AC_MSG_CHECKING(for network libraries) +AC_CACHE_VAL(cf_cv_netlibs,[ +AC_MSG_RESULT(working...) +cf_cv_netlibs="" +cf_test_netlibs=yes +AC_CHECK_FUNCS(gethostname,,[ + CF_RECHECK_FUNC(gethostname,nsl,cf_cv_netlibs,[ + CF_RECHECK_FUNC(gethostname,socket,cf_cv_netlibs)])]) +# +# FIXME: sequent needs this library (i.e., -lsocket -linet -lnsl), but +# I don't know the entrypoints - 97/7/22 TD +AC_CHECK_LIB(inet,main,cf_cv_netlibs="-linet $cf_cv_netlibs") +# +if test "$ac_cv_func_lsocket" != no ; then +AC_CHECK_FUNCS(socket,,[ + CF_RECHECK_FUNC(socket,socket,cf_cv_netlibs,[ + CF_RECHECK_FUNC(socket,bsd,cf_cv_netlibs)])]) +fi +# +AC_CHECK_FUNCS(gethostbyname,,[ + CF_RECHECK_FUNC(gethostbyname,nsl,cf_cv_netlibs)]) +]) +LIBS="$LIBS $cf_cv_netlibs" +test $cf_test_netlibs = no && echo "$cf_cv_netlibs" >&AC_FD_MSG +])dnl +dnl --------------------------------------------------------------------------- +dnl Re-check on a function to see if we can pick it up by adding a library. +dnl $1 = function to check +dnl $2 = library to check in +dnl $3 = environment to update (e.g., $LIBS) +dnl $4 = what to do if this fails +dnl +dnl This uses 'unset' if the shell happens to support it, but leaves the +dnl configuration variable set to 'unknown' if not. This is a little better +dnl than the normal autoconf test, which gives misleading results if a test +dnl for the function is made (e.g., with AC_CHECK_FUNC) after this macro is +dnl used (autoconf does not distinguish between a null token and one that is +dnl set to 'no'). +AC_DEFUN([CF_RECHECK_FUNC],[ +AC_CHECK_LIB($2,$1,[ + CF_UPPER(cf_tr_func,$1) + AC_DEFINE_UNQUOTED(HAVE_$cf_tr_func,1,[Define if you have function $1]) + ac_cv_func_$1=yes + $3="-l$2 [$]$3"],[ + ac_cv_func_$1=unknown + unset ac_cv_func_$1 2>/dev/null + $4], + [[$]$3]) +])dnl +dnl --------------------------------------------------------------------------- +dnl Make an uppercase version of a variable +dnl $1=uppercase($2) +AC_DEFUN([CF_UPPER], +[ +changequote(,)dnl +$1=`echo $2 | tr '[a-z]' '[A-Z]'` +changequote([,])dnl +])dnl + + +dnl --------------------------------------------------------------------------- +dnl From Paul Eggert <eggert@twinsun.com> + +AC_DEFUN([AC_STRUCT_ST_MTIM_NSEC], + [AC_CACHE_CHECK([for nanoseconds field of struct stat.st_mtim], + ac_cv_struct_st_mtim_nsec, + [ac_save_CPPFLAGS="$CPPFLAGS" + ac_cv_struct_st_mtim_nsec=no + # tv_nsec -- the usual case + # _tv_nsec -- Solaris 2.6, if + # (defined _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED == 1 + # && !defined __EXTENSIONS__) + # st__tim.tv_nsec -- UnixWare 2.1.2 + for ac_val in tv_nsec _tv_nsec st__tim.tv_nsec; do + CPPFLAGS="$ac_save_CPPFLAGS -DST_MTIM_NSEC=$ac_val" + AC_TRY_COMPILE([#include <sys/types.h> +#include <sys/stat.h> + ], [struct stat s; s.st_mtim.ST_MTIM_NSEC;], + [ac_cv_struct_st_mtim_nsec=$ac_val; break]) + done + CPPFLAGS="$ac_save_CPPFLAGS" + ]) + + if test $ac_cv_struct_st_mtim_nsec != no; then + AC_DEFINE_UNQUOTED([ST_MTIM_NSEC], [$ac_cv_struct_st_mtim_nsec], + [Define if struct stat contains a nanoseconds field]) + fi + ] +) |