Hi Tom, in the fix for PR 22168 you deprecated #ident, in the sense that gcc now warns about it. Is that really a good idea? #ident is a reasonably widely used extension: codesearch.google.com finds "about" 110,000 uses. It's supported by other compilers--it was introduced on System V, I believe, and has been picked up by many other compilers. It's been in gcc since at least version 1.37.
I don't think there is any reason for us to actually remove #ident, so I don't see any reason for us to warn that it is deprecated. We should certainly warn about it when using -pedantic, but I don't see any reason to warn about it at any other time. I reviewed the patch, but I didn't really notice the effect on #ident. I agree that #assert and #unassert deserve warnings about deprecation. I'm on the fence about #sccs but I tend to think that we should not warn about it except with -pedantic. Ian
