tree 322d8fca89a114ca0c217ddc2e779691208caa55
parent ee273b3b312642da33dd832125206d30e07fc811
author Bob Wilson <bob.wilson@apple.com> 1308690749 +0000
committer Bob Wilson <bob.wilson@apple.com> 1308690749 +0000

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