Consider adding even more compiler warnings, even when they require code changes.
Some of these warnings might be worth adding, either globally or selectively, but they would require a significant amount of effort to modify our code. (I already got the easy cases with #19180 (moved), I think.)
cast-qual (4.6) Rationale: triggers everywhere, even in some pretty normal C. Would be nice to have it trigger less, but would need to blow up a bunch of API things. Bigger project. conversion (4.6) Rationale: triggers all over. Probably wrong code in some cases, but careful thought needed in most Bigger project. sign-conversion (4.6) Triggers ALL OVER. Quite possibly a bug in some cases, though. Bigger project. cast-align (3) We already do this safely. Need to re-test on a system with stronger-than-intel alignment rules, though. shadow (3) mistake; worth fixing. switch-default (3) Not sure this is a good idea; someof these look like mistakes, but some don't. assign-enum (clang) triggers all over; worth fixing. conditional-uninitialized (clang) triggers all over; not sure whether this is worth fixing.