[LLVMdev] Help Required for LLVM

[ambika]

Sir/Ma'am,

I am a MTech student at IIT Bombay, doing my thesis in compiler 
optimization.
I am working on "Profile Based Pointer Analysis to Perform 
Optimization", and would like to implement the optimization in llvm for 
performing experiments.

When I was trying to build and install the compiler after configuring 
llvm-gcc I got the following error:
gcc: gengtype-lex.c: No such file or directory

Where can I find this file. Or am I missing something else.
Please reply as soon as possible, I will be highly obliged.

Thanks and Regards,
Ambika Agarwal
08305037
CSE, MTech
IIT Bombay