Question

I like to compile my code with -Wall, and sometimes even -pedantic. It’s partly a style thing, and partly the fact that it does occasionally emit very, very useful warnings (such as using = rather than ==).

However, the writers of some of my headers are clearly not such sticklers. Compiling with either of the two warning levels yields a tremendous mess of output, completely defeating the purpose of compiling that way in the first place.

So how can I make my compiler ignore those warnings?

Answer 1

Alternatively to JS Bangs’ answer, you can have GCC treat them as system headers, which disables all warnings (excepting #warning directives) for those headers.

If the -isystem switch is unhelpful, you can wrap all of the offending headers with simpler headers that contain only the appropriate line:

#pragma GCC system_header