libcxx: Disable llvm libunwind on ppc

It fails to build

libunwind/src/UnwindRegistersSave.S:561: Error: unrecognized opcode: `extern'

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

1 files changed, 2 insertions, 1 deletions

diff --git a/recipes-devtools/clang/libcxx_git.bb b/recipes-devtools/clang/libcxx_git.bb
index 558a0f6..256a4d2 100644
--- a/recipes-devtools/clang/libcxx_git.bb
+++ b/recipes-devtools/clang/libcxx_git.bb
@@ -17,10 +17,11 @@ BASEDEPENDS_remove_toolchain-clang_class-target = "libcxx"
 TARGET_CXXFLAGS_remove_toolchain-clang = " -stdlib=libc++ "
 
 PACKAGECONFIG ??= "unwind"
+PACKAGECONFIG_powerpc = ""
 PACKAGECONFIG_mipsarch = ""
 PACKAGECONFIG[unwind] = "-DLIBCXXABI_USE_LLVM_UNWINDER=ON -DLIBCXXABI_LIBUNWIND_INCLUDES=${S}/projects/libunwind/include, -DLIBCXXABI_USE_LLVM_UNWINDER=OFF,"
 
-PROVIDES = "${@bb.utils.contains('PACKAGECONFIG', 'unwind', 'libunwind', '', d)}"
+PROVIDES += "${@bb.utils.contains('PACKAGECONFIG', 'unwind', 'libunwind', '', d)}"
 
 LIC_FILES_CHKSUM = "file://projects/libcxx/LICENSE.TXT;md5=7b3a0e1b99822669d630011defe9bfd9; \
                     file://projects/libcxxabi/LICENSE.TXT;md5=3600117b7c18121ab04c53e4615dc36e \