use correct CFLAG and LDFLAG while build bitcode
use correct CFLAG and LDFLAG while build bitcode

Use CFLAG and LDFLAG settings as llvm_compile.py

amritamaz/LLVM-Tracer,rgly/LLVM-Tracer,amritamaz/LLVM-Tracer,amritamaz/LLVM-Tracer,rgly/LLVM-Tracer,rgly/LLVM-Tracer