View default include path of C headers in Mac OS X by `gcc -v`?

Question

I tried to find the default include path of the C compiler in Mac OS X (Mavericks) by using gcc -v:

$ gcc -v
Configured with: --prefix=/Applicat         


        

Answer 1

You need to ask the preprocessor, not gcc, for telling the default include path.

You can say:

`gcc -print-prog-name=cc1` -v

In order to list default include path for both C and C++:

`gcc -print-prog-name=cc1plus` -v

(The path that you've listed above is the one that was used to configure GCC while building.)

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Another way to list the default include path would be:

gcc -x c -v -E /dev/null

gcc -x c++ -v -E /dev/null     # (for C/C++)