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build: Cherry-pick libtool.m4 support for GNU ld *_sol2 emulations

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GNU ld gained separate Solaris-specific linker emulations (*_sol2) long
ago.  Since their introduction, GCC has preferred them over their
non-*_sol2 counterparts but supported both forms.  This has changed for
GCC 16: since all supported versions of GNU ld do support the *_sol2
emulations, GCC now uses them unconditionally.

libtool has also been updated to handle this since libtool 2.4.2 back in
2011.  However, that change has only partially been backported to the
heavily patched libtool.m4 in the GCC tree: the sparcv9 part is there,
but the amd64 part is missing for some reason.  This causes problems
with some recent binutils changes.

Therefore this patch cherry-picks the libtool patch to bring
Solaris/x86_64 in sync with Solaris/sparcv9 and upstream libtool.

Bootstrapped without regressions on {amd64,i386}-pc-solaris2.11 and
{sparcv9,sparc}-sun-solaris2.11.

2025-09-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* libtool.m4: Cherry-pick libtool commit
	9196966580f6853a31187a7a3c7e7ff36ef08982.

	gcc:
	* configure: Regenerate.

	libatomic:
	* configure: Regenerate.

	libbacktrace:
	* configure: Regenerate.

	libcc1:
	* configure: Regenerate.

	libffi:
	* configure: Regenerate.

	libga68:
	* configure: Regenerate.

	libgcobol:
	* configure: Regenerate.

	libgfortran:
	* configure: Regenerate.

	libgm2:
	* configure: Regenerate.

	libgomp:
	* configure: Regenerate.

	libgrust:
	* configure: Regenerate.

	libitm:
	* configure: Regenerate.

	libobjc:
	* configure: Regenerate.

	libphobos:
	* configure: Regenerate.

	libquadmath:
	* configure: Regenerate.

	libsanitizer:
	* configure: Regenerate.

	libssp:
	* configure: Regenerate.

	libstdc++-v3:
	* configure: Regenerate.

	libvtv:
	* configure: Regenerate.

	lto-plugin:
	* configure: Regenerate.

	zlib:
	* configure: Regenerate.
This commit is contained in:
Rainer Orth
2025-12-29 12:09:35 +01:00
parent 1b99521483
commit 1bcba38291
22 changed files with 420 additions and 90 deletions
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23
libcc1/configure vendored
View File

@@ -7069,7 +7069,9 @@ $as_echo "$lt_cv_cc_needs_belf" >&6; }
CFLAGS="$SAVE_CFLAGS"
fi
;;
sparc*-*solaris*)
*-*solaris*)
# Find out what ABI is being produced by ac_compile, and set linker
# options accordingly.
# Find out which ABI we are using.
echo 'int i;' > conftest.$ac_ext
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
@@ -7080,7 +7082,20 @@ sparc*-*solaris*)
case `/usr/bin/file conftest.o` in
*64-bit*)
case $lt_cv_prog_gnu_ld in
yes*) LD="${LD-ld} -m elf64_sparc" ;;
yes*)
case $host in
i?86-*-solaris*|x86_64-*-solaris*)
LD="${LD-ld} -m elf_x86_64"
;;
sparc*-*-solaris*)
LD="${LD-ld} -m elf64_sparc"
;;
esac
# GNU ld 2.21 introduced _sol2 emulations. Use them if available.
if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
LD=${LD-ld}_sol2
fi
;;
*)
if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
LD="${LD-ld} -64"
@@ -11264,7 +11279,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11267 "configure"
#line 11282 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -11370,7 +11385,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11373 "configure"
#line 11388 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H