compiler-rt/libcxx: Use clang as compiler

(From OE-Core rev: e75b2dee39fc0a35f764caa6b72af2a0b9beb165)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/clang/compiler-rt-sanitizers_git.bb

@@ -36,6 +36,8 @@ BUILD_CXX = "${CCACHE}${HOST_PREFIX}clang++ ${BUILD_CC_ARCH}$"
 CFLAGS += "${COMPILER_RT}"
 CXXFLAGS += "${COMPILER_RT} ${LIBCPLUSPLUS}"
 
+TOOLCHAIN = "clang"
+
 DEPENDS += "ninja-native virtual/crypt compiler-rt"
 DEPENDS:append:class-native = " clang-native libxcrypt-native libcxx-native"
 DEPENDS:append:class-nativesdk = " virtual/cross-c++ clang-native clang-crosssdk-${SDK_SYS} nativesdk-libxcrypt nativesdk-gcc-runtime"

meta/recipes-devtools/clang/compiler-rt_git.bb

@@ -58,6 +58,8 @@ BUILD_CXX = "${CCACHE}clang++ ${BUILD_CC_ARCH}"
 LDFLAGS += "${COMPILER_RT} ${UNWINDLIB}"
 CXXFLAGS += "${LIBCPLUSPLUS}"
 
+TOOLCHAIN = "clang"
+
 def get_compiler_rt_arch(bb, d):
     if bb.utils.contains('TUNE_FEATURES', 'armv5 thumb dsp', True, False, d):
         return 'armv5te'

meta/recipes-devtools/clang/libcxx_git.bb

@@ -54,6 +54,8 @@ BUILD_CXX = "${CCACHE}clang++ ${BUILD_CC_ARCH}"
 LDFLAGS += "${COMPILER_RT} ${UNWINDLIB} ${LIBCPLUSPLUS}"
 CXXFLAGS += "${LIBCPLUSPLUS}"
 
+TOOLCHAIN = "clang"
+
 OECMAKE_SOURCEPATH = "${S}/llvm"
 EXTRA_OECMAKE += "\
                   -DCMAKE_BUILD_TYPE=RelWithDebInfo \