Compile Open Source Program Using CLANG

I have an opensource program I can successfully compile with MinGW for 32 bits and MinGW64 for 64bits using G++ compiler. I want to compile the same program with CLANG compiler for both 32bits and 64bits (I need instructions and how to). The opensource program also seems to have support for clang it has a [login to view URL] file (convert assembler macros to C preprocessor macros.) I need this today (1 day bids only) $20-30 maximum.