Pass -fsanitize=* and -fuse-ld=* option down to gcc

Patches are back-ported from upstream.

Resolves: rhbz#2024647
Version: 2.4.6-48

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

libtool-2.4.6-sanitize.patch

@@ -0,0 +1,37 @@
+From a5c6466528c060cc4660ad0319c00740db0e42ba Mon Sep 17 00:00:00 2001
+From: Jeremy Huddleston Sequoia <jeremyhu@macports.org>
+Date: Sun, 18 Oct 2015 21:55:39 -0700
+Subject: [PATCH] libtool: fix GCC/clang linking with -fsanitize=*
+
+References:
+https://lists.gnu.org/archive/html/libtool/2014-04/msg00026.html
+
+* build-aux/ltmain.in (func_mode_link): Pass -fsanitize=* to the
+linker to allow trivial use of the clang address sanitizer.
+
+Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@macports.org>
+Copyright-paperwork-exempt: Yes
+---
+ build-aux/ltmain.in | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
+index 1cbe875d..2a5aaadd 100644
+--- a/build-aux/ltmain.in
++++ b/build-aux/ltmain.in
+@@ -5362,10 +5362,11 @@ func_mode_link ()
+       # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+       # -specs=*             GCC specs files
+       # -stdlib=*            select c++ std lib with clang
++      # -fsanitize=*         Clang/GCC memory and address sanitizer
+       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+       -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+-      -specs=*)
++      -specs=*|-fsanitize=*)
+         func_quote_for_eval "$arg"
+ 	arg=$func_quote_for_eval_result
+         func_append compile_command " $arg"
+-- 
+2.34.1
+

libtool-2.4.6-use-ld.patch

@@ -0,0 +1,36 @@
+From f9970d99293faf908fdc153a653fa5781095fb7a Mon Sep 17 00:00:00 2001
+From: Mike Frysinger <vapier@gentoo.org>
+Date: Sat, 13 Feb 2016 02:14:29 -0500
+Subject: [PATCH] libtool: pass through -fuse-ld flags
+
+Starting with gcc-4.8, there's a -fuse-ld flag that can be used to
+select between bfd & gold.  Make sure we pass it through to the
+linking stage.
+
+* build-aux/ltmain.in (func_mode_link): Pass -fuse-ld=* flags
+through.
+Copyright-paperwork-exempt: Yes
+---
+ build-aux/ltmain.in | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
+index 40eb0297..26015641 100644
+--- a/build-aux/ltmain.in
++++ b/build-aux/ltmain.in
+@@ -5363,10 +5363,11 @@ func_mode_link ()
+       # -specs=*             GCC specs files
+       # -stdlib=*            select c++ std lib with clang
+       # -fsanitize=*         Clang/GCC memory and address sanitizer
++      # -fuse-ld=*           Linker select flags for GCC
+       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+       -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+-      -specs=*|-fsanitize=*)
++      -specs=*|-fsanitize=*|-fuse-ld=*)
+         func_quote_for_eval "$arg"
+ 	arg=$func_quote_for_eval_result
+         func_append compile_command " $arg"
+-- 
+2.34.1
+

libtool.spec

@@ -8,7 +8,7 @@
 Summary: The GNU Portable Library Tool
 Name:    libtool
 Version: 2.4.6
-Release: 47%{?dist}
+Release: 48%{?dist}
 License: GPLv2+ and LGPLv2+ and GFDL
 URL:     http://www.gnu.org/software/libtool/
 
@@ -38,6 +38,12 @@ Patch4: libtool-2.4.6-fatal-handler.patch
 # Disable LTO for link-order2 test (Related: #1988112)
 Patch5: libtool-2.4.6-disable-lto-link-order2.patch
 
+# rhbz#2024647, upstream a5c6466528c060cc4660ad0319c00740db0e42ba
+Patch6: libtool-2.4.6-sanitize.patch
+
+# rhbz#2024647, upstream f9970d99293faf908fdc153a653fa5781095fb7a
+Patch7: libtool-2.4.6-use-ld.patch
+
 %if ! 0%{?_module_build}
 Patch100: libtool-nodocs.patch
 %endif
@@ -113,6 +119,8 @@ Static libraries and header files for development with ltdl.
 %patch3 -p1 -b .ltdl-hardening
 %patch4 -p1 -b .fatal-handler
 %patch5 -p1 -b .disable-lto-link-order2
+%patch6 -p1 -b .sanitize
+%patch7 -p1 -b .use-ld
 %if ! 0%{?_module_build}
 %patch100 -p1 -b .nodocs
 %endif
@@ -190,6 +198,10 @@ rm -f %{buildroot}%{_libdir}/libltdl.{a,la}
 
 
 %changelog
+* Thu Jan 27 2022 Frederic Berat <fberat@redhat.com> - 2.4.6-48
+- Add support for "-fsanitize", rhbz#2024647
+- Add support for "-fuse-ld", rhbz#2024647
+
 * Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.6-47
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild