Hi All, I am installing llvm 3.1 and clang from the source on my Mac os x 10.5.8. I got this error in the middle of the compilation process: llvm[4]: Compiling InitHeaderSearch.cpp for Release+Asserts build /Users/georgebaah/llvm3.1/llvm-3.1.src/tools/clang/lib/Frontend/InitHeaderSearch.cpp:29:10: fatal error: 'clang/Config/config.h' file not found #include "clang/Config/config.h" // C_INCLUDE_DIRS ^ /Users/georgebaah/llvm3.1/llvm-3.1.src/tools/clang/lib/Frontend/InitHeaderSearch.cpp:237:26: error: use of undeclared identifier 'C_INCLUDE_DIRS' StringRef CIncludeDirs(C_INCLUDE_DIRS); ^ 2 errors generated. make[4]: *** [/Users/georgebaah/llvm3.1/llvm-build/tools/clang/lib/Frontend/Release+Asserts/InitHeaderSearch.o] Error 1 make[3]: *** [Frontend/.makeall] Error 2 Can someone let me know what the problem is? Thanks. George -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120614/3265c258/attachment.html>