libcxxabi-fix-link-builtins

if LIBCXXABI_USE_COMPILER_RT=ON, add builtins to libcxxabi library
flags, otherwise add libgcc following how libunwind does the same

Gbp-Pq: Topic libcxx
Gbp-Pq: Name libcxxabi-fix-link-builtins.diff

diff --git a/libcxxabi/src/CMakeLists.txt b/libcxxabi/src/CMakeLists.txt
index 54002bafa0e2dd66a161a133651e09e6190de96d..3934c8aeeb00ea4576faf621a3f0992c37a1394f 100644 (file)
--- a/libcxxabi/src/CMakeLists.txt
+++ b/libcxxabi/src/CMakeLists.txt
@@ -77,7 +77,9 @@ else()
   add_library_flags_if(LIBCXXABI_HAS_C_LIB c)
 endif()
 
-if (NOT LIBCXXABI_USE_COMPILER_RT)
+if (LIBCXXABI_USE_COMPILER_RT)
+  add_library_flags("${LIBCXXABI_BUILTINS_LIBRARY}")
+else()
   add_library_flags_if(LIBCXXABI_HAS_GCC_LIB gcc)
 endif()
 if (NOT LIBCXXABI_USE_LLVM_UNWINDER)