I wrote: > Peter Eisentraut <peter_e@gmx.net> writes: >> These warnings also happen with older versions of clang. Now idea how >> to fix yet. I'm thinking that clang should be fixed, because these >> warnings are stupid.
> Yeah, they're utterly stupid; whoever put them in obviously doesn't > have a clue about typical Makefile construction. I wonder if next > we'll see complaints about unnecessary -D or -I switches.
> Having said that, I did look awhile ago about how we might get rid of > them, and it seems not easy; for starters we would need to drop the > assumption that CFLAGS can always be included when linking. Also, > AFAICT -pthread sometimes *is* required when linking; so it's > not even very obvious when to suppress the switch, even if we could > do so without wholesale rearrangement of our FLAGS handling.
On the other hand, there's often more than one way to skin a cat. It occurred to me that maybe we could just turn off this class of warning, and after some experimentation I found out that "-Wno-unused-command-line-argument" does that, at least in the version of clang that Apple's currently shipping.