Description of problem:
llvm was updated to 3.8.1 is f24 and f25, but clang not.
clang is currently unusable and it's not possible to rebuild mesa (with opencl support) because of this.


Version-Release number of selected component (if applicable):
3.8.0

How reproducible:
always

Steps to Reproduce:
1. build mesa src.rpm

Actual results:
in mesa build.log: llvm 3.8.1/ clang 3.8.0
checking for llvm-config... /usr/bin/llvm-config
configure: error: Could not find clang internal header stddef.h in /usr/lib/clang/3.8.1 Use --with-clang-libdir to specify the correct path to the clang libraries.
error: Bad exit status from /var/tmp/rpm-tmp.Zp6L0J (%build)

Expected results:
clang should find it's includedir

Additional info:
Please update clang to 3.8.1