https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79017
--- Comment #15 from Jeffrey Walton <noloader at gmail dot com> --- (In reply to Jonathan Wakely from comment #14) > OK, thanks. I'm not going to try to add declarations like the libc++ patch > does, as it looks like that would only be correct for Snow Leopard and not > earlier. > > I'll just add more fine-grained configure checks and if they're not declared > in <math.h> then they won't be available, period. There's only so much we > can do to work around buggy C libraries on the target. Ack, thanks. The MacPorts, Brew, Fink (etc) folks thank you.