[PATCH 3/7] glibc: disable automatic libatomic linking

[Hemanth.KumarMD@windriver.com]

From: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>

GCC 16 introduced -flink-libatomic which automatically injects
-latomic_asneeded into link commands via LINK_LIBATOMIC_SPEC. When glibc
is built with a GCC 16 cross-compiler, the compiler would attempt
to link against libatomic which does not exist yet at this stage.
(libatomic is built later as part of gcc-runtime)

Link: https://github.com/gcc-mirror/gcc/commit/e63cf4b130b86dd7dde1bf499d3d40faca10ea2e

Signed-off-by: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>
---
 meta/recipes-core/glibc/glibc.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-core/glibc/glibc.inc b/meta/recipes-core/glibc/glibc.inc
index 30d93bca77..ac96e640e2 100644
--- a/meta/recipes-core/glibc/glibc.inc
+++ b/meta/recipes-core/glibc/glibc.inc
@@ -49,6 +49,9 @@ EXTRA_OEMAKE += "SHELL=/bin/bash"
 # bash but it can be configured by setting KSHELL Makefile variable
 EXTRA_OEMAKE += "KSHELL=/bin/sh"
 
+TARGET_CC_ARCH += "-fno-link-libatomic"
+SDK_CC_ARCH += "-fno-link-libatomic"
+
 do_configure:prepend() {
 	sed -e "s#/bin/bash#/bin/sh#" -i ${S}/elf/ldd.bash.in
 }
-- 
2.49.0