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autoconf: Move export_dynamic determination to configure
Previously export_dynamic was set in src/makefiles/Makefile.$port. For solaris this required exporting with_gnu_ld. The determination of with_gnu_ld would be nontrivial to copy for meson PGXS compatibility. It's also nice to delete libtool.m4. This uses -Wl,--export-dynamic on all platforms, previously all platforms but FreeBSD used -Wl,-E. The likelihood of a name conflict seems lower with the longer spelling. Discussion: https://postgr.es/m/20221005200710.luvw5evhwf6clig6@awork3.anarazel.de
This commit is contained in:
Andres Freund
@ -468,29 +468,38 @@ AC_DEFUN([PGAC_PROG_CXX_CFLAGS_OPT],
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# PGAC_PROG_CC_LDFLAGS_OPT
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# PGAC_PROG_CC_LD_VARFLAGS_OPT
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# ------------------------
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# Given a string, check if the compiler supports the string as a
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# command-line option. If it does, add the string to LDFLAGS.
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# command-line option. If it does, add to the given variable.
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# For reasons you'd really rather not know about, this checks whether
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# you can link to a particular function, not just whether you can link.
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# In fact, we must actually check that the resulting program runs :-(
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AC_DEFUN([PGAC_PROG_CC_LDFLAGS_OPT],
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[define([Ac_cachevar], [AS_TR_SH([pgac_cv_prog_cc_ldflags_$1])])dnl
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AC_CACHE_CHECK([whether $CC supports $1], [Ac_cachevar],
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AC_DEFUN([PGAC_PROG_CC_LD_VARFLAGS_OPT],
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[define([Ac_cachevar], [AS_TR_SH([pgac_cv_prog_cc_$1_$2])])dnl
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AC_CACHE_CHECK([whether $CC supports $2, for $1], [Ac_cachevar],
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[pgac_save_LDFLAGS=$LDFLAGS
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LDFLAGS="$pgac_save_LDFLAGS $1"
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AC_RUN_IFELSE([AC_LANG_PROGRAM([extern void $2 (); void (*fptr) () = $2;],[])],
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LDFLAGS="$pgac_save_LDFLAGS $2"
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AC_RUN_IFELSE([AC_LANG_PROGRAM([extern void $3 (); void (*fptr) () = $3;],[])],
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[Ac_cachevar=yes],
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[Ac_cachevar=no],
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[Ac_cachevar="assuming no"])
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LDFLAGS="$pgac_save_LDFLAGS"])
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if test x"$Ac_cachevar" = x"yes"; then
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LDFLAGS="$LDFLAGS $1"
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$1="${$1} $2"
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fi
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undefine([Ac_cachevar])dnl
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])# PGAC_PROG_CC_LD_VARFLAGS_OPT
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# PGAC_PROG_CC_LDFLAGS_OPT
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# ------------------------
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# Convenience wrapper around PGAC_PROG_CC_LD_VARFLAGS_OPT that adds to
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# LDFLAGS.
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AC_DEFUN([PGAC_PROG_CC_LDFLAGS_OPT],
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[PGAC_PROG_CC_LD_VARFLAGS_OPT(LDFLAGS, [$1], [$2])
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])# PGAC_PROG_CC_LDFLAGS_OPT
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# PGAC_HAVE_GCC__SYNC_CHAR_TAS
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# ----------------------------
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# Check if the C compiler understands __sync_lock_test_and_set(char),
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119
config/libtool.m4
vendored
119
config/libtool.m4
vendored
@ -1,119 +0,0 @@
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## libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-
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## Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
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## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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##
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## As a special exception to the GNU General Public License, if you
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## distribute this file as part of a program that contains a
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## configuration script generated by Autoconf, you may include it under
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## the same distribution terms that you use for the rest of that program.
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# No, PostgreSQL doesn't use libtool (yet), we just borrow stuff from it.
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# This file was taken on 2000-10-20 from the multi-language branch (since
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# that is the branch that PostgreSQL would most likely adopt anyway).
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# --petere
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# ... bunch of stuff removed here ...
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# PGAC_PROG_LD - find the path to the GNU or non-GNU linker
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AC_DEFUN([PGAC_PROG_LD],
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[AC_ARG_WITH(gnu-ld,
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[ --with-gnu-ld assume the C compiler uses GNU ld [[default=no]]],
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test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
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AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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dnl ###not for PostgreSQL### AC_REQUIRE([AC_CANONICAL_BUILD])dnl
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ac_prog=ld
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if test "$GCC" = yes; then
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# Check if gcc -print-prog-name=ld gives a path.
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AC_MSG_CHECKING([for ld used by GCC])
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case $host in
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*-*-mingw*)
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# gcc leaves a trailing carriage return which upsets mingw
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ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
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*)
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ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
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esac
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case "$ac_prog" in
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# Accept absolute paths.
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changequote(,)dnl
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[\\/]* | [A-Za-z]:[\\/]*)
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re_direlt='/[^/][^/]*/\.\./'
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changequote([,])dnl
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# Canonicalize the path of ld
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ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
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while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
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ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
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done
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test -z "$LD" && LD="$ac_prog"
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;;
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"")
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# If it fails, then pretend we aren't using GCC.
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ac_prog=ld
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;;
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*)
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# If it is relative, then search for the first ld in PATH.
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with_gnu_ld=unknown
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;;
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esac
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elif test "$with_gnu_ld" = yes; then
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AC_MSG_CHECKING([for GNU ld])
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else
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AC_MSG_CHECKING([for non-GNU ld])
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fi
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AC_CACHE_VAL(ac_cv_path_LD,
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[if test -z "$LD"; then
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
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for ac_dir in $PATH; do
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test -z "$ac_dir" && ac_dir=.
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if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
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ac_cv_path_LD="$ac_dir/$ac_prog"
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# Check to see if the program is GNU ld. I'd rather use --version,
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# but apparently some GNU ld's only accept -v.
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# Break only if it was the GNU/non-GNU ld that we prefer.
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if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
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test "$with_gnu_ld" != no && break
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else
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test "$with_gnu_ld" != yes && break
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fi
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fi
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done
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IFS="$ac_save_ifs"
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else
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ac_cv_path_LD="$LD" # Let the user override the test with a path.
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fi])
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LD="$ac_cv_path_LD"
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if test -n "$LD"; then
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AC_MSG_RESULT($LD)
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else
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AC_MSG_RESULT(no)
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fi
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test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
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PGAC_PROG_LD_GNU
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])
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AC_DEFUN([PGAC_PROG_LD_GNU],
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[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
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[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
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if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
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ac_cv_prog_gnu_ld=yes
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else
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ac_cv_prog_gnu_ld=no
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fi])
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with_gnu_ld=$ac_cv_prog_gnu_ld
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])
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# ... more stuff removed ...
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