12.4.0: add, clone of 12.3.0 with ada patch

Signed-off-by: Sam James <sam@gentoo.org>

33 files changed, 1404 insertions, 0 deletions

diff --git a/12.4.0/gentoo/01_all_default-fortify-source.patch b/12.4.0/gentoo/01_all_default-fortify-source.patch
new file mode 100644
index 0000000..4cdf5f6
--- /dev/null
+++ b/12.4.0/gentoo/01_all_default-fortify-source.patch
@@ -0,0 +1,26 @@
+Taken Debian's patch and removed docs matches:
+    https://salsa.debian.org/toolchain-team/gcc.git
+Also see https://bugs.gentoo.org/621036 where
+initially Gentoo used too complicated macro.
+
+# DP: Turn on -D_FORTIFY_SOURCE=2 by default for C, C++, ObjC, ObjC++,
+# DP: if the optimization level is > 0
+--- a/gcc/c-family/c-cppbuiltin.cc
++++ b/gcc/c-family/c-cppbuiltin.cc
+@@ -1510,6 +1510,16 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
++#if !defined(ACCEL_COMPILER)
++  #ifndef GENTOO_FORTIFY_SOURCE_LEVEL
++    #define GENTOO_FORTIFY_SOURCE_LEVEL 2
++  #endif
++
++  /* F_S enabled by default for optimization levels > 0, except for ASAN: https://github.com/google/sanitizers/issues/247 */
++  if (optimize && ! (flag_sanitize & SANITIZE_ADDRESS))
++    builtin_define_with_int_value ("_FORTIFY_SOURCE", GENTOO_FORTIFY_SOURCE_LEVEL);
++#endif
++
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
diff --git a/12.4.0/gentoo/02_all_default-warn-format-security.patch b/12.4.0/gentoo/02_all_default-warn-format-security.patch
new file mode 100644
index 0000000..9723a1c
--- /dev/null
+++ b/12.4.0/gentoo/02_all_default-warn-format-security.patch
@@ -0,0 +1,22 @@
+Enable -Wformat and -Wformat-security by default.
+
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -696,7 +696,7 @@ Warn about function calls with format strings that write past the end
+ of the destination region.  Same as -Wformat-overflow=1.
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
++C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions.
+ 
+ Wformat-signedness
+@@ -717,7 +717,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats.
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
++C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+ Warn about printf/scanf/strftime/strfmon format string anomalies.
+ 
+ Wformat-overflow=
diff --git a/12.4.0/gentoo/03_all_default-warn-trampolines.patch b/12.4.0/gentoo/03_all_default-warn-trampolines.patch
new file mode 100644
index 0000000..fb6d8bc
--- /dev/null
+++ b/12.4.0/gentoo/03_all_default-warn-trampolines.patch
@@ -0,0 +1,13 @@
+Enable -Wtrampolines by default.
+
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -798,7 +798,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers.
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
++Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated.
+ 
+ Wtrivial-auto-var-init
diff --git a/12.4.0/gentoo/04_all_nossp-on-nostdlib.patch b/12.4.0/gentoo/04_all_nossp-on-nostdlib.patch
new file mode 100644
index 0000000..b633d7f
--- /dev/null
+++ b/12.4.0/gentoo/04_all_nossp-on-nostdlib.patch
@@ -0,0 +1,27 @@
+Disable ssp on -nostdlib, -nodefaultlibs and -ffreestanding 
+
+https://bugs.gentoo.org/484714
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -984,6 +984,12 @@ proper position among the other output files.  */
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+ #endif
+ 
++#ifdef ENABLE_DEFAULT_SSP
++#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} "
++#else
++#define NO_SSP_SPEC ""
++#endif
++
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1280,7 +1286,7 @@ static const char *cc1_options =
+  %{-version:--version}\
+  %{-help=*:--help=%*}\
+  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
+- %{fsyntax-only:-o %j} %{-param*}\
++ %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\
+  %{coverage:-fprofile-arcs -ftest-coverage}\
+  %{fprofile-arcs|fprofile-generate*|coverage:\
+    %{!fprofile-update=single:\
diff --git a/12.4.0/gentoo/05_all_alpha-mieee-default.patch b/12.4.0/gentoo/05_all_alpha-mieee-default.patch
new file mode 100644
index 0000000..fd1de71
--- /dev/null
+++ b/12.4.0/gentoo/05_all_alpha-mieee-default.patch
@@ -0,0 +1,39 @@
+Set the default behavior on alpha to use -mieee since the large majority of
+time we want this (bad/weird things can happen with packages built without
+it).
+
+To satisfy those people who may not want -mieee forced on them all the time,
+we also provide -mno-ieee.
+
+Patch by Mike Frysinger <vapier@gentoo.org>
+
+Note: upstream doesn't want to take this due to long standing behavior, and
+because it'd make behavior across OS's inconsistent:
+	https://gcc.gnu.org/ml/gcc-patches/2003-07/msg02144.html
+
+This makes sense for upstream, but Gentoo is more concerned about packages
+behaving the same across arches under Linux.
+
+--- a/gcc/config/alpha/alpha.h
++++ b/gcc/config/alpha/alpha.h
+@@ -94,6 +94,8 @@ along with GCC; see the file COPYING3.  If not see
+   while (0)
+ #endif
+ 
++#define CPP_SPEC "%{!no-ieee:-mieee}"
++
+ /* Run-time compilation parameters selecting different hardware subsets.  */
+ 
+ /* Which processor to schedule for. The cpu attribute defines a list that
+--- a/gcc/config/alpha/alpha.opt
++++ b/gcc/config/alpha/alpha.opt
+@@ -35,7 +35,7 @@
+ Request IEEE-conformant math library routines (OSF/1).
+ 
+ mieee
+-Target RejectNegative Mask(IEEE)
++Target Mask(IEEE)
+ Emit IEEE-conformant code, without inexact exceptions.
+ 
+ mieee-with-inexact
+
diff --git a/12.4.0/gentoo/06_all_ia64_note.GNU-stack.patch b/12.4.0/gentoo/06_all_ia64_note.GNU-stack.patch
new file mode 100644
index 0000000..7a1d4c6
--- /dev/null
+++ b/12.4.0/gentoo/06_all_ia64_note.GNU-stack.patch
@@ -0,0 +1,92 @@
+http://gcc.gnu.org/PR21098
+
+
+2004-09-20  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/rs6000/ppc-asm.h: Add .note.GNU-stack section also
+	on ppc64-linux.
+
+	* config/ia64/lib1funcs.asm: Add .note.GNU-stack section on
+	ia64-linux.
+	* config/ia64/crtbegin.asm: Likewise.
+	* config/ia64/crtend.asm: Likewise.
+	* config/ia64/crti.asm: Likewise.
+	* config/ia64/crtn.asm: Likewise.
+
+2004-05-14  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/ia64/linux.h (TARGET_ASM_FILE_END): Define.
+
+
+--- a/gcc/config/ia64/linux.h
++++ b/gcc/config/ia64/linux.h
+@@ -23,6 +23,8 @@ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ <http://www.gnu.org/licenses/>.  */
+ 
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ /* This is for -profile to use -lc_p instead of -lc.  */
+ #undef CC1_SPEC
+ #define CC1_SPEC "%{profile:-p} %{G*}"
+--- a/gcc/config/rs6000/ppc-asm.h
++++ b/gcc/config/rs6000/ppc-asm.h
+@@ -384,7 +384,7 @@ GLUE(.L,name): \
+ #endif
+ #endif
+ 
+-#if defined __linux__ && !defined __powerpc64__
++#if defined __linux__
+ 	.section .note.GNU-stack
+ 	.previous
+ #endif
+--- a/libgcc/config/ia64/crtbegin.S
++++ b/libgcc/config/ia64/crtbegin.S
+@@ -185,3 +185,7 @@ __do_jv_register_classes:
+ .weak __cxa_finalize
+ #endif
+ .weak _Jv_RegisterClasses
++
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+--- a/libgcc/config/ia64/crtend.S
++++ b/libgcc/config/ia64/crtend.S
+@@ -114,3 +114,6 @@ __do_global_ctors_aux:
+ 
+ 	br.ret.sptk.many rp
+ 	.endp __do_global_ctors_aux
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+--- a/libgcc/config/ia64/crti.S
++++ b/libgcc/config/ia64/crti.S
+@@ -49,5 +49,8 @@ _fini:
+ 	.save rp, r33
+ 	mov	r33 = b0
+ 	.body
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+ 
+ # end of crti.S
+--- a/libgcc/config/ia64/crtn.S
++++ b/libgcc/config/ia64/crtn.S
+@@ -39,5 +39,8 @@
+ 	.restore sp
+ 	mov	r12 = r35
+ 	br.ret.sptk.many b0
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+ 
+ # end of crtn.S
+--- a/libgcc/config/ia64/lib1funcs.S
++++ b/libgcc/config/ia64/lib1funcs.S
+@@ -793,3 +793,6 @@ __floattitf:
+ 	.endp __floattitf
+ #endif
+ #endif
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
diff --git a/12.4.0/gentoo/07_all_libiberty-asprintf.patch b/12.4.0/gentoo/07_all_libiberty-asprintf.patch
new file mode 100644
index 0000000..1ed2ba3
--- /dev/null
+++ b/12.4.0/gentoo/07_all_libiberty-asprintf.patch
@@ -0,0 +1,18 @@
+2008-07-25  Magnus Granberg  <zorry@ume.nu>
+
+	* include/libiberty.h (asprintf): Don't declare if defined as a macro
+
+--- a/include/libiberty.h
++++ b/include/libiberty.h
+@@ -652,8 +652,11 @@ extern void *bsearch_r (const void *, const void *,
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
++/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
++#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
++#endif
+ 
+ /* Like asprintf but allocates memory without fail. This works like
+    xmalloc.  */
diff --git a/12.4.0/gentoo/08_all_libiberty-pic.patch b/12.4.0/gentoo/08_all_libiberty-pic.patch
new file mode 100644
index 0000000..3f0bae1
--- /dev/null
+++ b/12.4.0/gentoo/08_all_libiberty-pic.patch
@@ -0,0 +1,10 @@
+--- a/libiberty/Makefile.in
++++ b/libiberty/Makefile.in
+@@ -265,6 +265,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
++	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
diff --git a/12.4.0/gentoo/09_all_nopie-all-flags.patch b/12.4.0/gentoo/09_all_nopie-all-flags.patch
new file mode 100644
index 0000000..fe1cd80
--- /dev/null
+++ b/12.4.0/gentoo/09_all_nopie-all-flags.patch
@@ -0,0 +1,18 @@
+We need to pass NO_PIE_CFLAGS to ALL_* so gcc don't fail when
+we compile it with older gcc and pie.
+
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -1054,10 +1054,10 @@ ALL_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@)
+ ALL_CPPFLAGS = $(INCLUDES) $(CPPFLAGS)
+ 
+ # This is the variable to use when using $(COMPILER).
+-ALL_COMPILERFLAGS = $(ALL_CXXFLAGS)
++ALL_COMPILERFLAGS = $(NO_PIE_CFLAGS) $(ALL_CXXFLAGS)
+ 
+ # This is the variable to use when using $(LINKER).
+-ALL_LINKERFLAGS = $(ALL_CXXFLAGS)
++ALL_LINKERFLAGS = $(NO_PIE_CFLAGS) $(ALL_CXXFLAGS)
+ 
+ # Build and host support libraries.
+ 
diff --git a/12.4.0/gentoo/10_all_sh-drop-sysroot-suffix.patch b/12.4.0/gentoo/10_all_sh-drop-sysroot-suffix.patch
new file mode 100644
index 0000000..e778f81
--- /dev/null
+++ b/12.4.0/gentoo/10_all_sh-drop-sysroot-suffix.patch
@@ -0,0 +1,26 @@
+From 5eeeff19bb4978a8d3c0d53bc81744bc25d82993 Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyfox@gentoo.org>
+Date: Sat, 14 Apr 2018 13:07:39 +0100
+Subject: [PATCH] gcc/config.gcc: sh-*: Disable sysroot-suffix (PR42947)
+
+sh-* is a multilib target. It is also one of 2 sysroot-prefix targets.
+Unfortunately two options do not mix well. Attempt to use default
+multilib flavour always prepends sysroot-prefix.
+
+Bug: https://bugs.gentoo.org/511548
+Bug: https://gcc.gnu.org/PR42947
+Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -3328,8 +3328,6 @@ sh-*-elf* | sh[12346l]*-*-elf* | \
+ 	if test x${enable_incomplete_targets} = xyes ; then
+ 		tm_defines="$tm_defines SUPPORT_SH1=1 SUPPORT_SH2E=1 SUPPORT_SH4=1 SUPPORT_SH4_SINGLE=1 SUPPORT_SH2A=1 SUPPORT_SH2A_SINGLE=1"
+ 	fi
+-	tm_file="$tm_file ./sysroot-suffix.h"
+-	tmake_file="$tmake_file t-sysroot-suffix"
+ 	;;
+ sh-*-rtems*)
+ 	tmake_file="${tmake_file} sh/t-sh sh/t-rtems"
+-- 
+2.17.0
+
diff --git a/12.4.0/gentoo/11_all_ia64-TEXTREL.patch b/12.4.0/gentoo/11_all_ia64-TEXTREL.patch
new file mode 100644
index 0000000..f5d0a99
--- /dev/null
+++ b/12.4.0/gentoo/11_all_ia64-TEXTREL.patch
@@ -0,0 +1,22 @@
+Fix textrels on -rdynamic binaries:
+Bug: https://gcc.gnu.org/PR84553
+Bug: https://bugs.gentoo.org/566118
+--- a/gcc/config/ia64/ia64.cc
++++ b/gcc/config/ia64/ia64.cc
+@@ -10840,12 +10840,14 @@ ia64_hpux_reloc_rw_mask (void)
+ 
+ /* For others, relax this so that relocations to local data goes in
+    read-only segments, but we still cannot allow global relocations
+-   in read-only segments.  */
++   in read-only segments.  Except that use of -rdynamic at link time
++   may make any local data global, so we can't allow local data in
++   read-only segments either.  */
+ 
+ static int
+ ia64_reloc_rw_mask (void)
+ {
+-  return flag_pic ? 3 : 2;
++  return flag_pic ? 3 : 3;
+ }
+ 
+ /* Return the section to use for X.  The only special thing we do here
diff --git a/12.4.0/gentoo/12_all_disable-systemtap-switch.patch b/12.4.0/gentoo/12_all_disable-systemtap-switch.patch
new file mode 100644
index 0000000..989036c
--- /dev/null
+++ b/12.4.0/gentoo/12_all_disable-systemtap-switch.patch
@@ -0,0 +1,115 @@
+From bb510ed7ea82093c924b027489db6f92250a85b3 Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyfox@gentoo.org>
+Date: Sat, 12 May 2018 12:56:46 +0100
+Subject: [PATCH] gcc/configure.ac: add --disable-systemtap switch
+
+Before the change systemtap probes were enabled
+if target headers had sys/sdt.h at ./configure time.
+
+After the change explicitly ask to enable or disable
+for probe support and not rely on automagic dependency
+discovery.
+
+Bug: https://bugs.gentoo.org/654748
+Bug: https://gcc.gnu.org/bugzilla/PR61257
+Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -1015,6 +1015,7 @@ enable_gnu_unique_object
+ enable_linker_build_id
+ enable_libssp
+ enable_default_ssp
++enable_systemtap
+ with_long_double_128
+ with_long_double_format
+ with_gc
+@@ -1773,6 +1774,7 @@ Optional Features:
+                           compiler will always pass --build-id to linker
+   --enable-libssp         enable linking against libssp
+   --enable-default-ssp    enable Stack Smashing Protection as default
++  --disable-systemtap     enable systemtap static probe points [default=auto]
+   --enable-maintainer-mode
+                           enable make rules and dependencies not useful (and
+                           sometimes confusing) to the casual installer
+@@ -31387,17 +31389,33 @@ fi
+ 
+ # Test for <sys/sdt.h> on the target.
+ 
+-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sys/sdt.h in the target C library" >&5
++
++# Check whether --enable-systemtap was given.
++if test "${enable_systemtap+set}" = set; then :
++  enableval=$enable_systemtap; enable_systemtap=$enableval
++else
++  enable_systemtap=auto
++fi
++
++
++if test x$enable_systemtap != xno; then
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking sys/sdt.h in the target C library" >&5
+ $as_echo_n "checking sys/sdt.h in the target C library... " >&6; }
+-have_sys_sdt_h=no
+-if test -f $target_header_dir/sys/sdt.h; then
+-  have_sys_sdt_h=yes
++  have_sys_sdt_h=no
++  if test -f $target_header_dir/sys/sdt.h ; then
++    have_sys_sdt_h=yes
+ 
+ $as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
+ 
+-fi
+-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_sys_sdt_h" >&5
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_sys_sdt_h" >&5
+ $as_echo "$have_sys_sdt_h" >&6; }
++  if test x$enable_systemtap = xyes ; then
++    if test x$have_sys_sdt_h = xno ; then
++      as_fn_error $? "sys/sdt.h was not found" "$LINENO" 5
++    fi
++  fi
++fi
+ 
+ # Check if TFmode long double should be used by default or not.
+ # Some glibc targets used DFmode long double, but with glibc 2.4
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -6904,14 +6904,28 @@ AC_SUBST([enable_default_ssp])
+ 
+ # Test for <sys/sdt.h> on the target.
+ GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
+-AC_MSG_CHECKING(sys/sdt.h in the target C library)
+-have_sys_sdt_h=no
+-if test -f $target_header_dir/sys/sdt.h; then
+-  have_sys_sdt_h=yes
+-  AC_DEFINE(HAVE_SYS_SDT_H, 1,
+-            [Define if your target C library provides sys/sdt.h])
+-fi
+-AC_MSG_RESULT($have_sys_sdt_h)
++
++AC_ARG_ENABLE(systemtap,
++[AS_HELP_STRING([--disable-systemtap],
++  [enable systemtap static probe points [default=auto]])],
++      enable_systemtap=$enableval,
++      enable_systemtap=auto)
++
++if test x$enable_systemtap != xno; then
++  AC_MSG_CHECKING(sys/sdt.h in the target C library)
++  have_sys_sdt_h=no
++  if test -f $target_header_dir/sys/sdt.h ; then
++    have_sys_sdt_h=yes
++    AC_DEFINE(HAVE_SYS_SDT_H, 1,
++              [Define if your target C library provides sys/sdt.h])
++  fi
++  AC_MSG_RESULT($have_sys_sdt_h)
++  if test x$enable_systemtap = xyes ; then
++    if test x$have_sys_sdt_h = xno ; then
++      AC_MSG_ERROR([sys/sdt.h was not found])
++    fi
++  fi
++fi
+ 
+ # Check if TFmode long double should be used by default or not.
+ # Some glibc targets used DFmode long double, but with glibc 2.4
+-- 
+2.17.0
+
diff --git a/12.4.0/gentoo/14_all_respect-build-cxxflags.patch b/12.4.0/gentoo/14_all_respect-build-cxxflags.patch
new file mode 100644
index 0000000..1f9a774
--- /dev/null
+++ b/12.4.0/gentoo/14_all_respect-build-cxxflags.patch
@@ -0,0 +1,39 @@
+Pass CXXFLAGS as CXXFLAGS_FOR_BUILD to stage1.
+
+Fixes build failure when CXXFLAGS contains
+TARGET-specific flags.
+
+Tested on x86_64-pc-linux-gnu host as:
+    # CFLAGS='-O2 -mfpu=neon-vfpv4' CXXFLAGS='-O2 -mfpu=neon-vfpv4' \
+        armv7a-unknown-linux-gnueabihf-emerge -v1 sys-devel/gcc --quiet-build=n
+
+Fix by Peter Levine.
+https://bugs.gentoo.org/581406
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -176,6 +176,7 @@
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
++	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
+@@ -842,6 +843,7 @@
+ 	"CC_FOR_BUILD=$(CC_FOR_BUILD)" \
+ 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
+ 	"CXX_FOR_BUILD=$(CXX_FOR_BUILD)" \
++	"CXXFLAGS_FOR_BUILD=$(CXXFLAGS_FOR_BUILD)" \
+ 	"EXPECT=$(EXPECT)" \
+ 	"FLEX=$(FLEX)" \
+ 	"INSTALL=$(INSTALL)" \
+--- a/Makefile.tpl
++++ b/Makefile.tpl
+@@ -179,6 +179,7 @@
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
++	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
diff --git a/12.4.0/gentoo/15_all_DEF_GENTOO_GLIBCXX_ASSERTIONS.patch b/12.4.0/gentoo/15_all_DEF_GENTOO_GLIBCXX_ASSERTIONS.patch
new file mode 100644
index 0000000..2daf73b
--- /dev/null
+++ b/12.4.0/gentoo/15_all_DEF_GENTOO_GLIBCXX_ASSERTIONS.patch
@@ -0,0 +1,14 @@
+https://bugs.gentoo.org/876895
+--- a/gcc/c-family/c-cppbuiltin.cc
++++ b/gcc/c-family/c-cppbuiltin.cc
+@@ -957,6 +957,10 @@ c_cpp_builtins (cpp_reader *pfile)
+ 	  cpp_define (pfile, "__cpp_rtti=199711L");
+ 	}
+ 
++      #ifdef DEF_GENTOO_GLIBCXX_ASSERTIONS
++	  cpp_define (pfile, "_GLIBCXX_ASSERTIONS");
++      #endif
++
+       if (cxx_dialect >= cxx11)
+         cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
+ 
diff --git a/12.4.0/gentoo/20_all_libstdcxx-no-vtv.patch b/12.4.0/gentoo/20_all_libstdcxx-no-vtv.patch
new file mode 100644
index 0000000..2719e2d
--- /dev/null
+++ b/12.4.0/gentoo/20_all_libstdcxx-no-vtv.patch
@@ -0,0 +1,61 @@
+Final libstdc++.so should not contain rpath to make libvtv usable.
+It's up to final binaries to link against proper libvtv.
+
+Bug: https://bugs.gentoo.org/582524
+Bug: https://gcc.gnu.org/PR85884
+--- a/libstdc++-v3/src/Makefile.am
++++ b/libstdc++-v3/src/Makefile.am
+@@ -277,7 +277,6 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) \
+ 	$(LTLDFLAGS) $(LTLIBICONV) \
+ 	-o $@
+--- a/libstdc++-v3/src/Makefile.in
++++ b/libstdc++-v3/src/Makefile.in
+@@ -642,7 +642,6 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) \
+ 	$(LTLDFLAGS) $(LTLIBICONV) \
+ 	-o $@
+--- a/libstdc++-v3/src/c++11/Makefile.am
++++ b/libstdc++-v3/src/c++11/Makefile.am
+@@ -214,5 +214,4 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX --tag disable-shared \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
+--- a/libstdc++-v3/src/c++11/Makefile.in
++++ b/libstdc++-v3/src/c++11/Makefile.in
+@@ -588,7 +588,6 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX --tag disable-shared \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
+ 
+ all: all-am
+--- a/libstdc++-v3/src/c++98/Makefile.am
++++ b/libstdc++-v3/src/c++98/Makefile.am
+@@ -268,5 +268,4 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX --tag disable-shared \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
+--- a/libstdc++-v3/src/c++98/Makefile.in
++++ b/libstdc++-v3/src/c++98/Makefile.in
+@@ -590,7 +590,6 @@ CXXLINK = \
+ 	$(LIBTOOL) --tag CXX --tag disable-shared \
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ 	--mode=link $(CXX) \
+-	$(VTV_CXXLINKFLAGS) \
+ 	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
+ 
+ all: all-am
diff --git a/12.4.0/gentoo/22_all_default_ssp-buffer-size.patch b/12.4.0/gentoo/22_all_default_ssp-buffer-size.patch
new file mode 100644
index 0000000..0e0dd42
--- /dev/null
+++ b/12.4.0/gentoo/22_all_default_ssp-buffer-size.patch
@@ -0,0 +1,14 @@
+Change the minimal SSP buffer size.
+
+https://bugs.gentoo.org/484714
+--- a/gcc/params.opt
++++ b/gcc/params.opt
+@@ -1012,7 +1012,7 @@ Common Joined UInteger Var(param_ssa_name_def_chain_limit) Init(512) Param Optim
+ The maximum number of SSA_NAME assignments to follow in determining a value.
+ 
+ -param=ssp-buffer-size=
+-Common Joined UInteger Var(param_ssp_buffer_size) Init(8) IntegerRange(1, 65536) Param Optimization
++Common Joined UInteger Var(param_ssp_buffer_size) Init(4) IntegerRange(1, 65536) Param Optimization
+ The lower bound for a buffer to be considered for stack smashing protection.
+ 
+ -param=stack-clash-protection-guard-size=
diff --git a/12.4.0/gentoo/23_all_DEF_GENTOO_ZNOW-z-now.patch b/12.4.0/gentoo/23_all_DEF_GENTOO_ZNOW-z-now.patch
new file mode 100644
index 0000000..2ed7968
--- /dev/null
+++ b/12.4.0/gentoo/23_all_DEF_GENTOO_ZNOW-z-now.patch
@@ -0,0 +1,26 @@
+If requested we add -z now
+
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -1001,6 +1001,12 @@ proper position among the other output files.  */
+ #endif
+ #endif
+ 
++#ifdef DEF_GENTOO_ZNOW
++#define LINK_NOW_SPEC "%{!nonow:-z now} "
++#else
++#define LINK_NOW_SPEC ""
++#endif
++
+ #ifdef ENABLE_DEFAULT_PIE
+ #define PIE_SPEC		"!no-pie"
+ #define NO_FPIE1_SPEC		"fno-pie"
+@@ -1161,7 +1167,7 @@ proper position among the other output files.  */
+     %(linker) " \
+     LINK_PLUGIN_SPEC \
+    "%{flto|flto=*:%<fcompare-debug*} \
+-    %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
++    %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC LINK_NOW_SPEC \
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
diff --git a/12.4.0/gentoo/24_all_DEF_GENTOO_SCP-fstack-clash-protection.patch b/12.4.0/gentoo/24_all_DEF_GENTOO_SCP-fstack-clash-protection.patch
new file mode 100644
index 0000000..b13215d
--- /dev/null
+++ b/12.4.0/gentoo/24_all_DEF_GENTOO_SCP-fstack-clash-protection.patch
@@ -0,0 +1,65 @@
+We add -fstack-clash-protection if requested
+
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -2698,7 +2698,7 @@ Common Alias(fstack-check=, specific, no
+ Insert stack checking code into the program.  Same as -fstack-check=specific.
+ 
+ fstack-clash-protection
+-Common Var(flag_stack_clash_protection) Optimization
++Common Var(flag_stack_clash_protection) Optimization Init(-1)
+ Insert code to probe each page of stack space as it is allocated to protect
+ from stack-clash style attacks.
+ 
+--- a/gcc/defaults.h
++++ b/gcc/defaults.h
+@@ -1425,6 +1425,15 @@ see the files COPYING3 and COPYING.RUNTI
+ #define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
+ #endif
+ 
++/* Default value for flag_clash_protector when flag_clash_protector is
++   initialized to -1.  */
++#ifdef DEF_GENTOO_SCP
++#define DEFAULT_FLAG_SCP 1
++#endif
++#ifndef DEFAULT_FLAG_SCP
++#define DEFAULT_FLAG_SCP 0
++#endif
++
+ /* By default, the C++ compiler will use function addresses in the
+    vtable entries.  Setting this nonzero tells the compiler to use
+    function descriptors instead.  The value of this macro says how
+--- a/gcc/toplev.cc
++++ b/gcc/toplev.cc
+@@ -1610,6 +1610,10 @@ process_options (void)
+ 
+   /* -fstack-clash-protection is not currently supported on targets
+      where the stack grows up.  */
++  if (flag_stack_clash_protection == -1)
++    {
++      flag_stack_clash_protection = DEFAULT_FLAG_SCP;
++    }
+   if (flag_stack_clash_protection && !STACK_GROWS_DOWNWARD)
+     {
+       warning_at (UNKNOWN_LOCATION, 0,
+
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -246,7 +246,7 @@ endif
+ LIBGCC2_DEBUG_CFLAGS = -g
+ LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(HOST_LIBGCC2_CFLAGS) \
+ 		 $(LIBGCC2_DEBUG_CFLAGS) -DIN_LIBGCC2 \
+-		 -fbuilding-libgcc -fno-stack-protector \
++		 -fbuilding-libgcc -fno-stack-protector -fno-stack-clash-protection \
+ 		 $(INHIBIT_LIBC_CFLAGS)
+ 
+ # Additional options to use when compiling libgcc2.a.
+@@ -302,7 +302,7 @@ INTERNAL_CFLAGS = $(CFLAGS) $(LIBGCC2_CF
+   $(NO_PIE_CFLAGS) -finhibit-size-directive -fno-inline -fno-exceptions \
+   -fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
+   -fbuilding-libgcc -fno-stack-protector $(FORCE_EXPLICIT_EH_REGISTRY) \
+-  $(INHIBIT_LIBC_CFLAGS) $(USE_TM_CLONE_REGISTRY)
++  -fno-stack-clash-protection $(INHIBIT_LIBC_CFLAGS) $(USE_TM_CLONE_REGISTRY)
+ 
+ # Extra flags to use when compiling crt{begin,end}.o.
+ CRTSTUFF_T_CFLAGS =
diff --git a/12.4.0/gentoo/25_all_lto-intl-workaround-PR95194.patch b/12.4.0/gentoo/25_all_lto-intl-workaround-PR95194.patch
new file mode 100644
index 0000000..9613216
--- /dev/null
+++ b/12.4.0/gentoo/25_all_lto-intl-workaround-PR95194.patch
@@ -0,0 +1,20 @@
+Trick libintl not to use '_INTL_REDIRECT_ASM' mode as it's
+incompatible with LTO builds.
+
+glibc does not normally use libintl implementations and uses
+it's own primitives. But musl ond others do fall back to libintl.
+
+Reported-by: Andrew Savchenko
+Bug: https://bugs.gentoo.org/723370
+Bug: https://gcc.gnu.org/PR95194
+--- a/intl/libgnuintl.h
++++ b/intl/libgnuintl.h
+@@ -93,7 +93,7 @@ extern "C" {
+    If he doesn't, we choose the method.  A third possible method is
+    _INTL_REDIRECT_ASM, supported only by GCC.  */
+ #if !(defined _INTL_REDIRECT_INLINE || defined _INTL_REDIRECT_MACROS)
+-# if __GNUC__ >= 2 && !defined __APPLE_CC__ && (defined __STDC__ || defined __cplusplus)
++# if __GNUC__ >= 2 && !defined __APPLE_CC__ && (defined __STDC__ || defined __cplusplus) && USE_ASM_ALIASES_THAT_BREAK_LTO
+ #  define _INTL_REDIRECT_ASM
+ # else
+ #  ifdef __cplusplus
diff --git a/12.4.0/gentoo/26_all_enable-cet.patch b/12.4.0/gentoo/26_all_enable-cet.patch
new file mode 100644
index 0000000..1d0c04f
--- /dev/null
+++ b/12.4.0/gentoo/26_all_enable-cet.patch
@@ -0,0 +1,206 @@
+https://bugs.gentoo.org/822036
+https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff
+
+From: Sam James <sam@gentoo.org>
+Subject: [PATCH] Enable CET (-fcf-protection=full) by default
+
+Needs:
+- CET to be enabled for GCC
+- -DEXTRA_OPTIONS_CF to be passed during build (via toolchain.eclass).
+
+  Only supported on amd64.
+--- a/gcc/cp/lang-specs.h
++++ b/gcc/cp/lang-specs.h
+@@ -51,7 +51,7 @@ along with GCC; see the file COPYING3.  If not see
+       " 	   %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}"
+       "  %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}"
+       "  %{fmodules-ts:-fmodule-header %{fpreprocessed:-fdirectives-only}}"
+-      "  %(cc1_options) %2"
++      "  %(cc1_options) %(default_flag_cf_spec) %2"
+       "  %{!fsyntax-only:"
+       "    %{!S:-o %g.s%V}"
+       "    %{!fmodule-*:%{!fmodules-*:%{!fdump-ada-spec*:"
+@@ -72,7 +72,7 @@ along with GCC; see the file COPYING3.  If not see
+       "  %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}"
+       "  %{fmodules-ts:-fmodule-header=system"
+       "    %{fpreprocessed:-fdirectives-only}}"
+-      "  %(cc1_options) %2"
++      "  %(cc1_options) %(default_flag_cf_spec) %2"
+       "  %{!fsyntax-only:"
+       "    %{!S:-o %g.s%V}"
+       "    %{!fmodule-*:%{!fmodules-*:%{!fdump-ada-spec*:"
+@@ -92,7 +92,7 @@ along with GCC; see the file COPYING3.  If not see
+       " 	   %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}"
+       "  %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}"
+       "  %{fmodules-ts:-fmodule-header=user %{fpreprocessed:-fdirectives-only}}"
+-      "  %(cc1_options) %2"
++      "  %(cc1_options) %(default_flag_cf_spec) %2"
+       "  %{!fsyntax-only:"
+       "    %{!S:-o %g.s%V}"
+       "    %{!fmodule-*:%{!fmodules-*:%{!fdump-ada-spec*:"
+@@ -107,7 +107,7 @@ along with GCC; see the file COPYING3.  If not see
+       "  cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed"
+       " 	   %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}"
+       "  %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}"
+-      "  %(cc1_options) %2"
++      "  %(cc1_options) %(default_flag_cf_spec) %2"
+       "  %{!fsyntax-only:"
+       "    %{fmodule-only:%{!S:-o %g.s%V}}"
+       "    %{!fmodule-only:%(invoke_as)}}"
+@@ -116,7 +116,7 @@ along with GCC; see the file COPYING3.  If not see
+   {".ii", "@c++-cpp-output", 0, 0, 0},
+   {"@c++-cpp-output",
+       "%{!E:%{!M:%{!MM:"
+-      "  cc1plus -fpreprocessed %i %(cc1_options) %2"
++      "  cc1plus -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %2"
+       "  %{!fsyntax-only:"
+       "    %{fmodule-only:%{!S:-o %g.s%V}}"
+       "    %{!fmodule-only:%{!fmodule-header*:%(invoke_as)}}}"
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -1007,6 +1007,18 @@ proper position among the other output files.  */
+ #define LINK_NOW_SPEC ""
+ #endif
+ 
++/* Default value for flag_cf_protection when flag_cf_protection is
++   initialized to CF_FULL.
++
++   We use a new option (EXTRA_OPTIONS_CF) here to avoid turning
++   this on accidentally for other arches. */
++#ifdef EXTRA_OPTIONS_CF
++#define DEFAULT_FLAG_CF_SPEC " %{!m16:%{!m32:%{!fcf-protection*:%{!fno-cf-protection:-fcf-protection}}}}"
++#endif
++#ifndef DEFAULT_FLAG_CF_SPEC
++#define DEFAULT_FLAG_CF_SPEC ""
++#endif
++
+ #ifdef ENABLE_DEFAULT_PIE
+ #define PIE_SPEC		"!no-pie"
+ #define NO_FPIE1_SPEC		"fno-pie"
+@@ -1209,6 +1221,7 @@ static const char *cpp_spec = CPP_SPEC;
+ static const char *cc1_spec = CC1_SPEC;
+ static const char *cc1plus_spec = CC1PLUS_SPEC;
+ static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
++static const char *default_flag_cf_spec = DEFAULT_FLAG_CF_SPEC;
+ static const char *link_ssp_spec = LINK_SSP_SPEC;
+ static const char *asm_spec = ASM_SPEC;
+ static const char *asm_final_spec = ASM_FINAL_SPEC;
+@@ -1267,7 +1280,7 @@ static const char *cpp_options =
+ "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
+  %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
+  %{!fno-working-directory:-fworking-directory}}} %{O*}\
+- %{undef} %{save-temps*:-fpch-preprocess}";
++ %{undef} %{save-temps*:-fpch-preprocess} %(default_flag_cf_spec)";
+ 
+ /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
+ 
+@@ -1456,9 +1469,9 @@ static const struct compiler default_compilers[] =
+       %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ 	  %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ 	    cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+-	  %(cc1_options)}\
++	  %(cc1_options)%(default_flag_cf_spec)}\
+       %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+-	  cc1 %(cpp_unique_options) %(cc1_options)}}}\
++	  cc1 %(cpp_unique_options) %(cc1_options) %(default_flag_cf_spec)}}}\
+       %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
+   {"-",
+    "%{!E:%e-E or -x required when input is from standard input}\
+@@ -1472,18 +1485,18 @@ static const struct compiler default_compilers[] =
+ 	  %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ 		%(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ 		    cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+-			%(cc1_options)\
++			%(cc1_options) %(default_flag_cf_spec)\
+ 			%{!fsyntax-only:%{!S:-o %g.s} \
+ 			    %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
+ 					       %W{o*:--output-pch=%*}}%V}}\
+ 	  %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+-		cc1 %(cpp_unique_options) %(cc1_options)\
++		cc1 %(cpp_unique_options) %(cc1_options) %(default_flag_cf_spec)\
+ 		    %{!fsyntax-only:%{!S:-o %g.s} \
+ 		        %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
+ 					   %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
+   {".i", "@cpp-output", 0, 0, 0},
+   {"@cpp-output",
+-   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
++   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {".s", "@assembler", 0, 0, 0},
+   {"@assembler",
+    "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
+@@ -1715,6 +1728,7 @@ static struct spec_list static_specs[] =
+   INIT_STATIC_SPEC ("cc1_options",		&cc1_options),
+   INIT_STATIC_SPEC ("cc1plus",			&cc1plus_spec),
+   INIT_STATIC_SPEC ("link_gcc_c_sequence",	&link_gcc_c_sequence_spec),
++  INIT_STATIC_SPEC ("default_flag_cf_spec",     &default_flag_cf_spec),
+   INIT_STATIC_SPEC ("link_ssp",			&link_ssp_spec),
+   INIT_STATIC_SPEC ("endfile",			&endfile_spec),
+   INIT_STATIC_SPEC ("link",			&link_spec),
+--- a/gcc/objc/lang-specs.h
++++ b/gcc/objc/lang-specs.h
+@@ -29,9 +29,9 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}\
++	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}}}\
+         %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objective-c-header",
+      "%{E|M|MM:cc1obj -E %{traditional|traditional-cpp:-traditional-cpp}\
+@@ -40,18 +40,18 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %b.mi %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj -fpreprocessed %b.mi %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}}}}}", 0, 0, 0},
+   {".mi", "@objective-c-cpp-output", 0, 0, 0},
+   {"@objective-c-cpp-output",
+-     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc-cpp-output",
+       "%nobjc-cpp-output is deprecated; please use objective-c-cpp-output instead\n\
+-       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+--- a/gcc/objcp/lang-specs.h
++++ b/gcc/objcp/lang-specs.h
+@@ -36,7 +36,7 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(default_flag_cf_spec) %2\
+         -o %g.s %{!o*:--output-pch=%i.gch} %W{o*:--output-pch=%*}%V}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {"@objective-c++",
+@@ -46,16 +46,16 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(default_flag_cf_spec) %2\
+        %{!fsyntax-only:%(invoke_as)}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {".mii", "@objective-c++-cpp-output", 0, 0, 0},
+   {"@objective-c++-cpp-output",
+    "%{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc++-cpp-output",
+    "%nobjc++-cpp-output is deprecated; please use objective-c++-cpp-output instead\n\
+     %{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(default_flag_cf_spec) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
diff --git a/12.4.0/gentoo/27_all_plugin-objdump.patch b/12.4.0/gentoo/27_all_plugin-objdump.patch
new file mode 100644
index 0000000..059bca5
--- /dev/null
+++ b/12.4.0/gentoo/27_all_plugin-objdump.patch
@@ -0,0 +1,34 @@
+https://gcc.gnu.org/PR95648
+--- a/config/gcc-plugin.m4
++++ b/config/gcc-plugin.m4
+@@ -45,7 +45,7 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
+      ;;
+      *)
+        if test x$build = x$host; then
+-	 export_sym_check="objdump${exeext} -T"
++	 export_sym_check="$ac_cv_prog_OBJDUMP -T"
+        elif test x$host = x$target; then
+ 	 export_sym_check="$gcc_cv_objdump -T"
+        else
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -32075,7 +32075,7 @@ fi
+      ;;
+      *)
+        if test x$build = x$host; then
+-	 export_sym_check="objdump${exeext} -T"
++	 export_sym_check="$ac_cv_prog_OBJDUMP -T"
+        elif test x$host = x$target; then
+ 	 export_sym_check="$gcc_cv_objdump -T"
+        else
+--- a/libcc1/configure
++++ b/libcc1/configure
+@@ -15034,7 +15034,7 @@ fi
+      ;;
+      *)
+        if test x$build = x$host; then
+-	 export_sym_check="objdump${exeext} -T"
++	 export_sym_check="$ac_cv_prog_OBJDUMP -T"
+        elif test x$host = x$target; then
+ 	 export_sym_check="$gcc_cv_objdump -T"
+        else
diff --git a/12.4.0/gentoo/28_all_drop_CFLAGS_sed.patch b/12.4.0/gentoo/28_all_drop_CFLAGS_sed.patch
new file mode 100644
index 0000000..764f34c
--- /dev/null
+++ b/12.4.0/gentoo/28_all_drop_CFLAGS_sed.patch
@@ -0,0 +1,35 @@
+https://bugs.gentoo.org/849722
+https://github.com/InBetweenNames/gentooLTO/issues/846
+https://github.com/vaeth/portage-bashrc-mv/issues/11
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -5388,13 +5388,6 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
+ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+ 
+ 
+-# Remove the -O2: for historical reasons, unless bootstrapping we prefer
+-# optimizations to be activated explicitly by the toplevel.
+-case "$CC" in
+-  */prev-gcc/xgcc*) ;;
+-  *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[ 	]//" -e "s/-O[gs][ 	]//" -e "s/-O[0-9]*[ 	]//" `
+-     CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[ 	]//" -e "s/-O[gs][ 	]//" -e "s/-O[0-9]*[ 	]//" ` ;;
+-esac
+ 
+ 
+ 
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -440,13 +440,6 @@ ACX_PROG_GDC([-I"$srcdir"/d])
+ # Do configure tests with the C++ compiler, since that's what we build with.
+ AC_LANG(C++)
+ 
+-# Remove the -O2: for historical reasons, unless bootstrapping we prefer
+-# optimizations to be activated explicitly by the toplevel.
+-case "$CC" in
+-  */prev-gcc/xgcc*) ;;
+-  *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ 	]]//" -e "s/-O[[gs]][[ 	]]//" -e "s/-O[[0-9]]*[[ 	]]//" `
+-     CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[[ 	]]//" -e "s/-O[[gs]][[ 	]]//" -e "s/-O[[0-9]]*[[ 	]]//" ` ;;
+-esac
+ AC_SUBST(CFLAGS)
+ AC_SUBST(CXXFLAGS)
+ AC_SUBST(GDCFLAGS)
diff --git a/12.4.0/gentoo/29_all_msgfmt-libstdc++-link.patch b/12.4.0/gentoo/29_all_msgfmt-libstdc++-link.patch
new file mode 100644
index 0000000..0d2f113
--- /dev/null
+++ b/12.4.0/gentoo/29_all_msgfmt-libstdc++-link.patch
@@ -0,0 +1,39 @@
+Ensure that msgfmt doesn't encounter problems during gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+https://bugs.gentoo.org/843119
+--- a/libstdc++-v3/po/Makefile.am
++++ b/libstdc++-v3/po/Makefile.am
+@@ -39,6 +39,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+--- a/libstdc++-v3/po/Makefile.in
++++ b/libstdc++-v3/po/Makefile.in
+@@ -419,6 +419,7 @@ uninstall-am: uninstall-info-am
+ 
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
diff --git a/12.4.0/gentoo/30_all_tar_libstdc++-link.patch b/12.4.0/gentoo/30_all_tar_libstdc++-link.patch
new file mode 100644
index 0000000..149d614
--- /dev/null
+++ b/12.4.0/gentoo/30_all_tar_libstdc++-link.patch
@@ -0,0 +1,57 @@
+From eae11e896edef4199a128bf6720b5bd4e5edc2f9 Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Sat, 17 Dec 2022 02:42:59 +0000
+Subject: [PATCH] Fix calling libarchive's tar
+
+https://bugs.gentoo.org/886447
+
+Very similar to 33_all_msgfmt-libstdc++-link.patch, whose description is:
+"""
+Ensure that msgfmt doesn't encounter problems during gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+https://bugs.gentoo.org/843119
+"""
+
+Signed-off-by: Sam James <sam@gentoo.org>
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -3934,10 +3934,10 @@ install-headers-tar: stmp-int-hdrs install-include-dir
+ # Unless a full pathname is provided, some shells would print the new CWD,
+ # found in CDPATH, corrupting the output.  We could just redirect the
+ # output of `cd', but some shells lose on redirection within `()'s
+-	(cd `${PWD_COMMAND}`/include ; \
+-	 tar -cf - .; exit 0) | (cd $(DESTDIR)$(libsubdir)/include; tar xpf - )
+-	(cd `${PWD_COMMAND}`/include-fixed ; \
+-	 tar -cf - .; exit 0) | (cd $(DESTDIR)$(libsubdir)/include-fixed; tar xpf - )
++	(unset LD_LIBRARY_PATH ; cd `${PWD_COMMAND}`/include ; \
++	 tar -cf - .; exit 0) | (unset LD_LIBRARY_PATH ; cd $(DESTDIR)$(libsubdir)/include; tar xpf - )
++	(unset LD_LIBRARY_PATH ; cd `${PWD_COMMAND}`/include-fixed ; \
++	 tar -cf - .; exit 0) | (unset LD_LIBRARY_PATH ; cd $(DESTDIR)$(libsubdir)/include-fixed; tar xpf - )
+ # /bin/sh on some systems returns the status of the first tar,
+ # and that can lose with GNU tar which always writes a full block.
+ # So use `exit 0' to ignore its exit status.
+@@ -3958,7 +3958,7 @@ install-headers-cp: stmp-int-hdrs install-include-dir
+ # Targets without dependencies, for use in prev-gcc during bootstrap.
+ real-install-headers-tar:
+ 	(cd `${PWD_COMMAND}`/include-fixed ; \
+-	 tar -cf - .; exit 0) | (cd $(DESTDIR)$(libsubdir)/include-fixed; tar xpf - )
++	 unset LD_LIBRARY_PATH; tar -cf - .; exit 0) | (cd $(DESTDIR)$(libsubdir)/include-fixed; unset LD_LIBRARY_PATH; tar xpf - )
+ 
+ real-install-headers-cpio:
+ 	cd `${PWD_COMMAND}`/include-fixed ; \
diff --git a/12.4.0/gentoo/75_all_go_posix_shell_arithmetic_nonbash.patch b/12.4.0/gentoo/75_all_go_posix_shell_arithmetic_nonbash.patch
new file mode 100644
index 0000000..57e9060
--- /dev/null
+++ b/12.4.0/gentoo/75_all_go_posix_shell_arithmetic_nonbash.patch
@@ -0,0 +1,40 @@
+https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=cf1725610526fe347d2530455b32affc033fd7fc
+
+From cf1725610526fe347d2530455b32affc033fd7fc Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Fri, 22 Jul 2022 11:38:20 -0700
+Subject: [PATCH] libgo: use POSIX shell arithmetic expansion
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf8
+Content-Transfer-Encoding: 8bit
+
+Avoid bash-specific ((expression)) syntax.  As the bash syntax
+converts a non-zero value to a zero status (and a zero value to a 1
+status), and POSIX arithmetic expansion does not, we have to negate
+the result.
+
+Based on patch by Sören Tempel.
+
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/419154
+--- a/libgo/match.sh
++++ b/libgo/match.sh
+@@ -111,7 +111,7 @@ gobuild() {
+     if test "$goarch" != "386"; then
+ 	line=$(echo "$line" | sed -e "s/\\(${wrap}\\)386\\(${wrap}\\)/\10\2/g")
+     fi
+-    (($line))
++    return $((!($line)))
+ }
+ 
+ matched=
+--- a/libgo/testsuite/gotest
++++ b/libgo/testsuite/gotest
+@@ -302,7 +302,7 @@ gobuild() {
+     if test "$goarch" != "386"; then
+ 	line=$(echo "$line" | sed -e "s/\\(${wrap}\\)386\\(${wrap}\\)/\10\2/g")
+     fi
+-    (($line))
++    return $((!($line)))
+ }
+ 
+ case "x$gofiles" in
diff --git a/12.4.0/gentoo/76_all_all_PR107087_12_Wstringop-overread-libstdc++-cow-empty.patch b/12.4.0/gentoo/76_all_all_PR107087_12_Wstringop-overread-libstdc++-cow-empty.patch
new file mode 100644
index 0000000..15241fe
--- /dev/null
+++ b/12.4.0/gentoo/76_all_all_PR107087_12_Wstringop-overread-libstdc++-cow-empty.patch
@@ -0,0 +1,63 @@
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107087
+https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=4969dcd2b7a94ce6c0d07225b21b5f3c040a4902
+
+From 4969dcd2b7a94ce6c0d07225b21b5f3c040a4902 Mon Sep 17 00:00:00 2001
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Fri, 31 Mar 2023 13:44:04 +0100
+Subject: [PATCH] libstdc++: Teach optimizer that empty COW strings are empty
+ [PR107087]
+
+The compiler doesn't know about the invariant that the _S_empty_rep()
+object is immutable and so _M_length and _M_refcount are always zero.
+This means that we get warnings about writing possibly-non-zero length
+strings into buffers that can't hold them. If we teach the compiler that
+the empty rep is always zero length, it knows it can be copied into any
+buffer.
+
+For Stage 1 we might want to also consider adding this to capacity():
+
+	if (_S_empty_rep()._M_capacity != 0)
+	  __builtin_unreachable();
+
+And this to _Rep::_M_is_leaked() and _Rep::_M_is_shared():
+
+	  if (_S_empty_rep()._M_refcount != 0)
+	    __builtin_unreachable();
+
+libstdc++-v3/ChangeLog:
+
+	PR tree-optimization/107087
+	* include/bits/cow_string.h (basic_string::size()): Add
+	optimizer hint that _S_empty_rep()._M_length is always zero.
+	(basic_string::length()): Call size().
+--- a/libstdc++-v3/include/bits/cow_string.h
++++ b/libstdc++-v3/include/bits/cow_string.h
+@@ -907,17 +907,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+     public:
+       // Capacity:
++
+       ///  Returns the number of characters in the string, not including any
+       ///  null-termination.
+       size_type
+       size() const _GLIBCXX_NOEXCEPT
+-      { return _M_rep()->_M_length; }
++      {
++#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0 && __OPTIMIZE__
++	if (_S_empty_rep()._M_length != 0)
++	  __builtin_unreachable();
++#endif
++	return _M_rep()->_M_length;
++      }
+ 
+       ///  Returns the number of characters in the string, not including any
+       ///  null-termination.
+       size_type
+       length() const _GLIBCXX_NOEXCEPT
+-      { return _M_rep()->_M_length; }
++      { return size(); }
+ 
+       ///  Returns the size() of the largest possible %string.
+       size_type
+-- 
+2.31.1
diff --git a/12.4.0/gentoo/77_all_riscv_PR106271-multilib-bootstrap.patch b/12.4.0/gentoo/77_all_riscv_PR106271-multilib-bootstrap.patch
new file mode 100644
index 0000000..a333dc8
--- /dev/null
+++ b/12.4.0/gentoo/77_all_riscv_PR106271-multilib-bootstrap.patch
@@ -0,0 +1,36 @@
+https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=47f95bc4be4eb14730ab3eaaaf8f6e71fda47690
+https://gcc.gnu.org/PR106271
+https://bugs.gentoo.org/890636
+
+From 7cb2eddfcd84d6e4a1bc1b19fa7ace0927db6bbc Mon Sep 17 00:00:00 2001
+From: Raphael Moreira Zinsly <rzinsly@ventanamicro.com>
+Date: Tue, 22 Aug 2023 11:37:04 -0600
+Subject: [PATCH] RISC-V: Add multiarch support on riscv-linux-gnu
+
+This adds multiarch support to the RISC-V port so that bootstraps work with
+Debian out-of-the-box.  Without this patch the stage1 compiler is unable to
+find headers/libraries when building the stage1 runtime.
+
+This is functionally (and possibly textually) equivalent to Debian's fix for
+the same problem.
+
+gcc/
+	* config/riscv/t-linux: Add MULTIARCH_DIRNAME.
+
+(cherry picked from commit 47f95bc4be4eb14730ab3eaaaf8f6e71fda47690)
+---
+ gcc/config/riscv/t-linux | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/config/riscv/t-linux b/gcc/config/riscv/t-linux
+index 216d2776a183..a6f64f88d25c 100644
+--- a/gcc/config/riscv/t-linux
++++ b/gcc/config/riscv/t-linux
+@@ -1,3 +1,5 @@
+ # Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
+ MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
+ MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
++
++MULTIARCH_DIRNAME := $(call if_multiarch,$(firstword $(subst -, ,$(target)))-linux-gnu)
+-- 
+2.44.0
diff --git a/12.4.0/gentoo/78_all_PR115917-ada-lto.patch b/12.4.0/gentoo/78_all_PR115917-ada-lto.patch
new file mode 100644
index 0000000..2e25ddf
--- /dev/null
+++ b/12.4.0/gentoo/78_all_PR115917-ada-lto.patch
@@ -0,0 +1,52 @@
+From dd97dff998c9fc35e36397fc647f7360e1cadf70 Mon Sep 17 00:00:00 2001
+Message-ID: <dd97dff998c9fc35e36397fc647f7360e1cadf70.1727635310.git.sam@gentoo.org>
+From: =?UTF-8?q?Arsen=20Arsenovi=C4=87?= <arsen@aarsen.me>
+Date: Thu, 15 Aug 2024 19:17:41 +0200
+Subject: [PATCH] gnat: fix lto-type-mismatch between C_Version_String and
+ gnat_version_string [PR115917]
+
+gcc/ada/ChangeLog:
+
+	PR ada/115917
+	* gnatvsn.ads: Add note about the duplication of this value in
+	version.c.
+	* version.c (VER_LEN_MAX): Define to the same value as
+	Gnatvsn.Ver_Len_Max.
+	(gnat_version_string): Use VER_LEN_MAX as bound.
+
+(cherry picked from commit 9cbcf8d1de159e6113fafb5dc2feb4a7e467a302)
+---
+ gcc/ada/gnatvsn.ads | 3 ++-
+ gcc/ada/version.c   | 5 ++++-
+ 2 files changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/ada/gnatvsn.ads b/gcc/ada/gnatvsn.ads
+index 47a06b96c3cf..99d06c7e5aa4 100644
+--- a/gcc/ada/gnatvsn.ads
++++ b/gcc/ada/gnatvsn.ads
+@@ -83,7 +83,8 @@ package Gnatvsn is
+    --  space to store any possible version string value for checks. This
+    --  value should never be decreased in the future, but it would be
+    --  OK to increase it if absolutely necessary. If it is increased,
+-   --  be sure to increase GNAT.Compiler.Version.Ver_Len_Max as well.
++   --  be sure to increase GNAT.Compiler.Version.Ver_Len_Max, and to update
++   --  the VER_LEN_MAX define in version.c as well.
+ 
+    Ver_Prefix : constant String := "GNAT Version: ";
+    --  Prefix generated by binder. If it is changed, be sure to change
+diff --git a/gcc/ada/version.c b/gcc/ada/version.c
+index 5e64edd0b17d..2fa9b8c2c859 100644
+--- a/gcc/ada/version.c
++++ b/gcc/ada/version.c
+@@ -31,4 +31,7 @@
+ 
+ #include "version.h"
+ 
+-char gnat_version_string[] = version_string;
++/* Logically a reference to Gnatvsn.Ver_Len_Max.  Please keep in sync.  */
++#define VER_LEN_MAX 256
++
++char gnat_version_string[VER_LEN_MAX] = version_string;
+-- 
+2.46.2
+
diff --git a/12.4.0/gentoo/README.history b/12.4.0/gentoo/README.history
new file mode 100644
index 0000000..adc0133
--- /dev/null
+++ b/12.4.0/gentoo/README.history
@@ -0,0 +1,30 @@
+1	29 Sept 2024
+
+	+ 01_all_default-fortify-source.patch
+	+ 02_all_default-warn-format-security.patch
+	+ 03_all_default-warn-trampolines.patch
+	+ 04_all_nossp-on-nostdlib.patch
+	+ 05_all_alpha-mieee-default.patch
+	+ 06_all_ia64_note.GNU-stack.patch
+	+ 07_all_libiberty-asprintf.patch
+	+ 08_all_libiberty-pic.patch
+	+ 09_all_nopie-all-flags.patch
+	+ 10_all_sh-drop-sysroot-suffix.patch
+	+ 11_all_ia64-TEXTREL.patch
+	+ 12_all_disable-systemtap-switch.patch
+	+ 14_all_respect-build-cxxflags.patch
+	+ 15_all_DEF_GENTOO_GLIBCXX_ASSERTIONS.patch
+	+ 20_all_libstdcxx-no-vtv.patch
+	+ 22_all_default_ssp-buffer-size.patch
+	+ 23_all_DEF_GENTOO_ZNOW-z-now.patch
+	+ 24_all_DEF_GENTOO_SCP-fstack-clash-protection.patch
+	+ 25_all_lto-intl-workaround-PR95194.patch
+	+ 26_all_enable-cet.patch
+	+ 27_all_plugin-objdump.patch
+	+ 28_all_drop_CFLAGS_sed.patch
+	+ 29_all_msgfmt-libstdc++-link.patch
+	+ 30_all_tar_libstdc++-link.patch
+	+ 75_all_go_posix_shell_arithmetic_nonbash.patch
+	+ 76_all_all_PR107087_12_Wstringop-overread-libstdc++-cow-empty.patch
+	+ 77_all_riscv_PR106271-multilib-bootstrap.patch
+	+ 78_all_PR115917-ada-lto.patch
diff --git a/12.4.0/musl/25_all_multilib_pure64.patch b/12.4.0/musl/25_all_multilib_pure64.patch
new file mode 100644
index 0000000..d55c04c
--- /dev/null
+++ b/12.4.0/musl/25_all_multilib_pure64.patch
@@ -0,0 +1,83 @@
+https://bugs.gentoo.org/675954
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90077
+
+--- a/gcc/config/aarch64/t-aarch64-linux
++++ b/gcc/config/aarch64/t-aarch64-linux
+@@ -22,7 +22,7 @@
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+ AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
++MULTILIB_OSDIRNAMES = mabi.lp64=../lib
+ MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+ MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
+--- a/gcc/config/i386/t-linux64
++++ b/gcc/config/i386/t-linux64
+@@ -33,6 +33,6 @@
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+ MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+-MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
++MULTILIB_OSDIRNAMES = m64=../lib
++MULTILIB_OSDIRNAMES+= m32=../lib32
++MULTILIB_OSDIRNAMES+= mx32=../libx32
+--- a/gcc/config/rs6000/t-linux
++++ b/gcc/config/rs6000/t-linux
+@@ -2,7 +2,8 @@
+ # or soft-float.
+ ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
+ ifneq (,$(findstring powerpc64,$(target)))
+-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ else
+ MULTIARCH_DIRNAME := $(call if_multiarch,powerpc-linux-gnu)
+ endif
+@@ -10,7 +11,8 @@
+ MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME))
+ endif
+ ifneq (,$(findstring powerpc64le,$(target)))
+-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ endif
+ endif
+ 
+--- a/gcc/config/rs6000/t-linux64
++++ b/gcc/config/rs6000/t-linux64
+@@ -28,8 +28,8 @@
+ MULTILIB_OPTIONS    := m64/m32
+ MULTILIB_DIRNAMES   := 64 32
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.c
+ 	$(COMPILE) $<
+--- a/gcc/config/rs6000/t-linux64bele
++++ b/gcc/config/rs6000/t-linux64bele
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mlittle
+ MULTILIB_DIRNAMES   += le
+-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES)))
++MULTILIB_OSDIRNAMES = m64=../lib
++MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+--- a/gcc/config/rs6000/t-linux64lebe
++++ b/gcc/config/rs6000/t-linux64lebe
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mbig
+ MULTILIB_DIRNAMES   += be
+-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES)))
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
diff --git a/12.4.0/musl/50_all_libssp_unconditionally.patch b/12.4.0/musl/50_all_libssp_unconditionally.patch
new file mode 100644
index 0000000..a3b5984
--- /dev/null
+++ b/12.4.0/musl/50_all_libssp_unconditionally.patch
@@ -0,0 +1,24 @@
+https://bugs.gentoo.org/706210
+https://bugs.gentoo.org/747346
+
+Author: Timo Teräs <timo.teras@iki.fi>
+
+"Alpine musl package provides libssp_nonshared.a. We link to it unconditionally,
+as otherwise we get link failures if some objects are -fstack-protector built
+and final link happens with -fno-stack-protector. This seems to be the common
+case when bootstrapping gcc, the piepatches do not seem to fully fix the
+crosstoolchain and  bootstrap sequence wrt. stack-protector flag usage."
+
+(We do the same in Gentoo.)
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -870,8 +870,7 @@
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+-		       "|fstack-protector-strong|fstack-protector-explicit:}"
++#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit" \
diff --git a/12.4.0/musl/50_all_posix_memalign.patch b/12.4.0/musl/50_all_posix_memalign.patch
new file mode 100644
index 0000000..dd75a93
--- /dev/null
+++ b/12.4.0/musl/50_all_posix_memalign.patch
@@ -0,0 +1,28 @@
+--- a/gcc/config/i386/pmm_malloc.h
++++ b/gcc/config/i386/pmm_malloc.h
+@@ -27,12 +27,13 @@
+ #include <stdlib.h>
+ 
+ /* We can't depend on <stdlib.h> since the prototype of posix_memalign
+-   may not be visible.  */
++   may not be visible and we can't pollute the namespace either.  */
+ #ifndef __cplusplus
+-extern int posix_memalign (void **, size_t, size_t);
++extern int __gcc_posix_memalign (void **, size_t, size_t)
+ #else
+-extern "C" int posix_memalign (void **, size_t, size_t) throw ();
++extern "C" int __gcc_posix_memalign (void **, size_t, size_t) throw ()
+ #endif
++__asm__("posix_memalign");
+ 
+ static __inline void *
+ _mm_malloc (size_t __size, size_t __alignment)
+@@ -42,7 +43,7 @@
+     return malloc (__size);
+   if (__alignment == 2 || (sizeof (void *) == 8 && __alignment == 4))
+     __alignment = sizeof (void *);
+-  if (posix_memalign (&__ptr, __alignment, __size) == 0)
++  if (__gcc_posix_memalign (&__ptr, __alignment, __size) == 0)
+     return __ptr;
+   else
+     return NULL;
diff --git a/12.4.0/musl/README.history b/12.4.0/musl/README.history
new file mode 100644
index 0000000..06330d5
--- /dev/null
+++ b/12.4.0/musl/README.history
@@ -0,0 +1,10 @@
+2	????
+
+	- 50_all_cpu_indicator.patch
+
+1	28 Apr 2023
+
+	+ 25_all_multilib_pure64.patch
+	+ 50_all_cpu_indicator.patch
+	+ 50_all_libssp_unconditionally.patch
+	+ 50_all_posix_memalign.patch