Question

I have a header file, where in I have used like:

#if defined(LINUX) || defined(ANDROID)
 pthread_t gpthread;
 #endif

Now, I would like to get only the header file content after passing -DLINUX in the compilation. Is there any way to get it ? If I use:

#arm-linux-androideabi-g++ -E main.c > temp

then the output is bit confusing to me.

Answer 1

You could just ask the compiler to do the preprocessing only on the header file:

arm-linux-androideabi-g++ -DLINUX -E foo.h > temp