git: 222210c6a822 - main - libgcc_s: add libgcc_s_asneeded.so wrapper for gcc 16

The branch main has been updated by siva:

URL: https://cgit.FreeBSD.org/src/commit/?id=222210c6a82282de78aa863c550da21471630316

commit 222210c6a82282de78aa863c550da21471630316
Author:     Siva Mahadevan <siva@FreeBSD.org>
AuthorDate: 2026-09-28 15:07:56 +0000
Commit:     Siva Mahadevan <siva@FreeBSD.org>
CommitDate: 2026-09-28 15:08:05 +0000

    libgcc_s: add libgcc_s_asneeded.so wrapper for gcc 16
    
    GCC 16[0][1] now requires a wrapper lib to handle
    `--push-state --as-needed -lgcc_s --pop-state` logic[1]
    for `gcc` invocations. `g++` will still unconditionally
    use `-lgcc_s`.
    
    This fixes buildworld with gcc16.
    
    [0] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=8a99fdb70493df1294b53406913e5ea1fc971c13
    [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123396
    
    Reviewed by:    jhb
    MFC after:      3 days
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D59511
---
 Makefile.inc1                                    |  7 ++++---
 lib/Makefile                                     |  1 +
 lib/libgcc_s_asneeded/Makefile                   | 11 +++++++++++
 lib/libgcc_s_asneeded/libgcc_s_asneeded.ldscript |  1 +
 4 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/Makefile.inc1 b/Makefile.inc1
index b683e007f0dc..b457a46febfe 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -3322,13 +3322,14 @@ _startup_libs+=	lib/libc_nonshared
 _startup_libs+=	lib/libcxxrt
 _startup_libs+=	lib/libsys
 
-_prereq_libs+=	lib/libgcc_eh lib/libgcc_s
-_startup_libs+=	lib/libgcc_eh lib/libgcc_s
+_prereq_libs+=	lib/libgcc_eh lib/libgcc_s lib/libgcc_s_asneeded
+_startup_libs+=	lib/libgcc_eh lib/libgcc_s lib/libgcc_s_asneeded
 
 lib/libc__L: lib/libsys__L
 lib/libgcc_s__L: lib/libc__L
 lib/libgcc_s__L: lib/libc_nonshared__L
-lib/libcxxrt__L: lib/libgcc_s__L
+lib/libgcc_s_asneeded__L: lib/libgcc_s__L
+lib/libcxxrt__L: lib/libgcc_s_asneeded__L
 lib/libcrypt__L: lib/libmd__L
 
 _prebuild_libs=	${_kerberos5_lib_libasn1} \
diff --git a/lib/Makefile b/lib/Makefile
index 78b48382e12e..27f757eb085c 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -61,6 +61,7 @@ SUBDIR=	${SUBDIR_BOOTSTRAP} \
 	libfetch \
 	libgcc_eh \
 	libgcc_s \
+	libgcc_s_asneeded \
 	libgeom \
 	libifconfig \
 	libipsec \
diff --git a/lib/libgcc_s_asneeded/Makefile b/lib/libgcc_s_asneeded/Makefile
new file mode 100644
index 000000000000..eb59daac50f8
--- /dev/null
+++ b/lib/libgcc_s_asneeded/Makefile
@@ -0,0 +1,11 @@
+PACKAGE=	clibs
+SHLIB_NAME=	libgcc_s_asneeded.so.1
+SHLIBDIR?=	/lib
+
+SHLIB_LDSCRIPT=	libgcc_s_asneeded.ldscript
+
+.include <bsd.opts.mk>
+
+LDFLAGS+=	-nodefaultlibs
+
+.include <bsd.lib.mk>
diff --git a/lib/libgcc_s_asneeded/libgcc_s_asneeded.ldscript b/lib/libgcc_s_asneeded/libgcc_s_asneeded.ldscript
new file mode 100644
index 000000000000..3461e92fa7ca
--- /dev/null
+++ b/lib/libgcc_s_asneeded/libgcc_s_asneeded.ldscript
@@ -0,0 +1 @@
+INPUT (AS_NEEDED(-lgcc_s))