--- cfe-3.8.1.src/lib/Driver/CMakeLists.txt.orig 2015-07-02 04:45:27.000000000 +0000+++ cfe-3.8.1.src/lib/Driver/CMakeLists.txt 2017-01-19 19:22:36.869663323 +0000@@ -3,6 +3,8 @@ Support ) +add_definitions(-DLLVM_PREFIX="${LLVM_PREFIX}")+ add_clang_library(clangDriver Action.cpp Compilation.cpp