Sam James <s...@gentoo.org> writes: > They're using > c89/gnu89 often because defaults have changed (a point > others have raised, including Arsen and Eli Schwartz) even though they > weren't intended to be compiled with newer C. > > A fair amount of other projects do explicitly ask for either c99/gnu99 > or c11/gnu11 and if they're doing that, they shouldn't be getting > something which was removed from the C standard. But if they really want > it, they can either downgrade to C89 (rather drastic), or set the > proposed -fpermissive.
Too much trouble. Let me tell you what will actually happen: people will never do what you want them to. Instead, they will simply write: extern int foo (); above the new errors. As a result, you will not have really accomplished anything other than making a lot of users angry. The declarations will continue to be as correct as they have always been.
