acos.s fix: use the formula acos(x) = atan2(sqrt(1-x),sqrt(1+x))
[musl] / src / thread / pthread_testcancel.c
2011-08-07 Rich Felkeruse weak aliases rather than function pointers to simpl...
2011-04-17 Rich Felkeroverhaul pthread cancellation
2011-02-12 Rich Felkerinitial check-in, version 0.5.0