/show include equivalent option in g++

问题:

I see that VC++ includes an option called /show include to list you the hierarchy of include files in each translation unit. This seems to be a very helpful option - to optimise/improve the compilation time in a large scale project.

Question
Is there any equivalent option in GNU g++ compiler to get these (similar output)?

回答1:

There's a variety of options for controlling this.

-MD will list files, -MMD will list non-system files as side effects of compilation

-M, -MM will generate lists instead of compiling.

-MQ, -MG, -MP and -MT generate makefile target fragments. -MF allows you to specify an output filename.

回答2:

gcc -H

will print the names of header files as they are used.