Fix the default libc++ header search path to be sysrooted. Radar 9639692.
The -cxx-isystem path is not prefixed with the sysroot directory, so it's
not a good way for the driver to set the system default C++ search path.
Instead, add -stdlib as a cc1 option and teach the frontend how to find the
headers. The driver can then just pass -stdlib through to "cc1".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133547 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 41efccf..40ad2ca 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -330,6 +330,7 @@
= types::isObjC(InputType) && isObjCAutoRefCount(Args);
getToolChain().AddClangCXXStdlibIncludeArgs(Args, CmdArgs,
ObjCXXAutoRefCount);
+ Args.AddAllArgs(CmdArgs, options::OPT_stdlib_EQ);
}
// Add -Wp, and -Xassembler if using the preprocessor.