Comment 24 for bug 1246802

I think you can probably simply add at the beginning of the new tests:

// { dg-require-cstdint "" }

and then the new include doesn't require any change. But please double check, we don't want new Bugzillas: say, damage check_v3_target_cstdint to artificially return false on your machine and double check that the new testcases are simply skipped.