[LLVMdev] Installation Error

[George Baah]

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
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