[compiler-rt] Don't build builtins beyond macOS 10.7

It's not supported anyways, and now Clang complains about it since
we didn't support -stdlib=libc++ back then.

diff --git a/compiler-rt/cmake/builtin-config-ix.cmake b/compiler-rt/cmake/builtin-config-ix.cmake
index 9cbadf3..5aa2114 100644 (file)
--- a/compiler-rt/cmake/builtin-config-ix.cmake
+++ b/compiler-rt/cmake/builtin-config-ix.cmake
@@ -97,7 +97,7 @@ if(APPLE)
   endfunction()
 
   set(DARWIN_EMBEDDED_PLATFORMS)
-  set(DARWIN_osx_BUILTIN_MIN_VER 10.5)
+  set(DARWIN_osx_BUILTIN_MIN_VER 10.7)
   set(DARWIN_osx_BUILTIN_MIN_VER_FLAG
       -mmacosx-version-min=${DARWIN_osx_BUILTIN_MIN_VER})
   set(DARWIN_osx_BUILTIN_ALL_POSSIBLE_ARCHS ${X86} ${X86_64})