ot-br-posix: Fix Musl build error

Mistakenly removed musl-fixes.patch in previous commit.

update & Include 0001-Musl-build-fix.patch based on latest upstream of ot-br-posix

Remove CXXFLAGS:append:libc-musl:toolchain-clang = " -Wno-error=sign-compare
-Wno-error=unused-but-set-variable", as issue is not reproducible with
current SRCREV of ot-br-posix.

Signed-off-by: deepan.shivap <deepan.shivap@lge.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 28 insertions, 3 deletions

diff --git a/meta-networking/recipes-connectivity/openthread/ot-br-posix/0001-Musl-build-fix.patch b/meta-networking/recipes-connectivity/openthread/ot-br-posix/0001-Musl-build-fix.patch
new file mode 100644
index 0000000000..108ed76b30
--- /dev/null
+++ b/meta-networking/recipes-connectivity/openthread/ot-br-posix/0001-Musl-build-fix.patch
@@ -0,0 +1,27 @@
+From 502aa4ab4bbc790fb2999ff2b5f10dabd7085190 Mon Sep 17 00:00:00 2001
+From: "deepan.shivap" <deepan.shivap@lge.com>
+Date: Mon, 2 Dec 2024 23:12:17 +0900
+Subject: [PATCH] Musl build fix
+
+usage of getaddrinfo_a creates dependency on libanl, which is  specific
+to glibc.
+
+Upstream-Status: Pending
+Signed-off-by: deepan.shivap <deepan.shivap@lge.com>
+---
+ src/posix/platform/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/posix/platform/CMakeLists.txt b/src/posix/platform/CMakeLists.txt
+index b4ac241f5..7b2028e45 100644
+--- a/src/posix/platform/CMakeLists.txt
++++ b/src/posix/platform/CMakeLists.txt
+@@ -175,7 +175,7 @@ target_link_libraries(openthread-posix
+ )
+ 
+ option(OT_TARGET_OPENWRT "enable openthread posix for OpenWRT" OFF)
+-if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT OT_TARGET_OPENWRT)
++if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT OT_TARGET_OPENWRT AND NOT OT_TARGET_MUSL)
+     target_compile_definitions(ot-posix-config
+         INTERFACE "OPENTHREAD_POSIX_CONFIG_NAT64_AIL_PREFIX_ENABLE=1"
+     )
diff --git a/meta-networking/recipes-connectivity/openthread/ot-br-posix_git.bb b/meta-networking/recipes-connectivity/openthread/ot-br-posix_git.bb
index 8183f52033..f4c193a8e8 100644
--- a/meta-networking/recipes-connectivity/openthread/ot-br-posix_git.bb
+++ b/meta-networking/recipes-connectivity/openthread/ot-br-posix_git.bb
@@ -19,15 +19,13 @@ SRC_URI = "gitsm://github.com/openthread/ot-br-posix.git;protocol=https;branch=m
            file://0001-cmake-Disable-nonnull-compare-warning-on-gcc.patch \
            file://default-cxx-std.patch \
            file://0001-fix-build-on-GCC-14-for-yocto.patch;patchdir=third_party/openthread/repo \
+           file://0001-Musl-build-fix.patch;patchdir=third_party/openthread/repo \
            "
 
 S = "${WORKDIR}/git"
 SYSTEMD_SERVICE:${PN} = "otbr-agent.service"
 
 inherit pkgconfig cmake systemd
-# openthread/repo/src/cli/cli.cpp:1786:18: fatal error: variable 'i' set but not used [-Wunused-but-set-variable]
-#    for (uint8_t i = 0;; i++)
-CXXFLAGS:append:libc-musl:toolchain-clang = " -Wno-error=sign-compare -Wno-error=unused-but-set-variable"
 
 LDFLAGS:append:riscv32 = " -latomic"