GitLab

 s/ms-w32.h (POSIX_SIGNALS, struct sigaction, SIG_BLOCK)
 (SIG_SETMASK, SIG_UNBLOCK): Define.
 sysdep.c (sys_signal) [WINDOWSNT]: #ifdef away.
 (wait_for_termination) [WINDOWSNT]: Move MS-Windows specific code
 from non-POSIX_SIGNALS section to POSIX_SIGNALS section.
 w32.c (sigemptyset, sigaddset, sigfillset, sigprocmask): New stubs.