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autoconf: Move export_dynamic determination to configure

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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
2022-12-06 18:55:28 -08:00
parent 8018ffbf58
commit 9db49fc5bf
12 changed files with 108 additions and 276 deletions
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25
config/c-compiler.m4
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@ -468,29 +468,38 @@ AC_DEFUN([PGAC_PROG_CXX_CFLAGS_OPT],
# PGAC_PROG_CC_LDFLAGS_OPT
# PGAC_PROG_CC_LD_VARFLAGS_OPT
# ------------------------
# Given a string, check if the compiler supports the string as a
# command-line option. If it does, add the string to LDFLAGS.
# command-line option. If it does, add to the given variable.
# For reasons you'd really rather not know about, this checks whether
# you can link to a particular function, not just whether you can link.
# In fact, we must actually check that the resulting program runs :-(
AC_DEFUN([PGAC_PROG_CC_LDFLAGS_OPT],
[define([Ac_cachevar], [AS_TR_SH([pgac_cv_prog_cc_ldflags_$1])])dnl
AC_CACHE_CHECK([whether $CC supports $1], [Ac_cachevar],
AC_DEFUN([PGAC_PROG_CC_LD_VARFLAGS_OPT],
[define([Ac_cachevar], [AS_TR_SH([pgac_cv_prog_cc_$1_$2])])dnl
AC_CACHE_CHECK([whether $CC supports $2, for $1], [Ac_cachevar],
[pgac_save_LDFLAGS=$LDFLAGS
LDFLAGS="$pgac_save_LDFLAGS $1"
AC_RUN_IFELSE([AC_LANG_PROGRAM([extern void $2 (); void (*fptr) () = $2;],[])],
LDFLAGS="$pgac_save_LDFLAGS $2"
AC_RUN_IFELSE([AC_LANG_PROGRAM([extern void $3 (); void (*fptr) () = $3;],[])],
[Ac_cachevar=yes],
[Ac_cachevar=no],
[Ac_cachevar="assuming no"])
LDFLAGS="$pgac_save_LDFLAGS"])
if test x"$Ac_cachevar" = x"yes"; then
LDFLAGS="$LDFLAGS $1"
$1="${$1} $2"
fi
undefine([Ac_cachevar])dnl
])# PGAC_PROG_CC_LD_VARFLAGS_OPT
# PGAC_PROG_CC_LDFLAGS_OPT
# ------------------------
# Convenience wrapper around PGAC_PROG_CC_LD_VARFLAGS_OPT that adds to
# LDFLAGS.
AC_DEFUN([PGAC_PROG_CC_LDFLAGS_OPT],
[PGAC_PROG_CC_LD_VARFLAGS_OPT(LDFLAGS, [$1], [$2])
])# PGAC_PROG_CC_LDFLAGS_OPT
# PGAC_HAVE_GCC__SYNC_CHAR_TAS
# ----------------------------
# Check if the C compiler understands __sync_lock_test_and_set(char),