Commit b8b7afdc8e2e8c2bb512d822d8a4b26a1a34eb8f
2011-07-08T02:24:27
pthread_sigmask: Ensure declaration in <signal.h>. * lib/signal.in.h: On MacOS X, FreeBSD, OpenBSD, OSF/1, include <pthread.h>. * doc/posix-functions/pthread_sigmask.texi: Mention the header file problem.