compiler-rt: Build builtins only for the default target

We were never really supposed to build for multiple target architectures in one
compiler-rt build, so let's use the feature created to do exactly that.

This also happens to fix building for ARM softfp ABI builds, where the target
architecture guessing logics ends up with:

    -- Builtin supported architectures: arm;armv6m

And later on bailing out because of duplicate ninja rules:

    ninja: error: build.ninja:56765: multiple rules generate lib/clang/14.0.0/lib/linux/libclang_rt.builtins-arm.a [-w dupbuild=err]

Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/recipes-devtools/clang/compiler-rt_git.bb b/recipes-devtools/clang/compiler-rt_git.bb
index cf4de8f..cb72b5a 100644
--- a/recipes-devtools/clang/compiler-rt_git.bb
+++ b/recipes-devtools/clang/compiler-rt_git.bb
@@ -50,7 +50,8 @@ OECMAKE_TARGET_COMPILE = "compiler-rt"
 OECMAKE_TARGET_INSTALL = "install-compiler-rt install-compiler-rt-headers"
 OECMAKE_SOURCEPATH = "${S}/llvm"
 EXTRA_OECMAKE += "-DCOMPILER_RT_STANDALONE_BUILD=OFF \
-                  -DCOMPILER_RT_DEFAULT_TARGET_TRIPLE=${HOST_ARCH}${HF}${HOST_VENDOR}-${HOST_OS} \
+                  -DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON \
+                  -DCMAKE_C_COMPILER_TARGET=${HOST_ARCH}${HF}${HOST_VENDOR}-${HOST_OS} \
                   -DCOMPILER_RT_BUILD_XRAY=OFF \
                   -DCOMPILER_RT_BUILD_SANITIZERS=OFF \
                   -DCOMPILER_RT_BUILD_MEMPROF=OFF \