Replace catkin_simple command to normal cmake command(really need help)

[zhaozhongch]

Thanks for answering questions... This is an awesome project to make the catkin code easier to compile.
However, now I want to add Cuda compilation. Normally when I compile cuda, I need to change

add_library()

to

cuda_add_library()

now it is cs_add_library()
I really don't know how to do with it. If I simply change it to cuda_add_library() of course compile will give error so I am wondering how could I just make this piece of code back to the general CMake command?

Thanks so much for help!