A C++ programmer needed to make a CUDA project to compile on gnu compiler by modifying project’s makefile.

I am able to compile this project on Visual C++ 2008. Now I would like to compile it on gnu using the projects makefile. I do not have a lot of experience on makefiles, so was struggling to do it. So I need help on this. This should be easy for those who have experience on makefiles/gnu and cuda. I really need to compile the code with CUDA flags on (OPT += -DCUDA) in the makefile and par files. I manually added nvcc to makefile to compile with CUDA but after that I am getting a lot of undeclared variables and objects . I need someone to be able to fix or to create the header file. The work will be accepted when the code compiles with CUDA without changing the code (or if you change I must agree) The file with the code will be sent after the job acceptance.