2 @section @code{bsd_signal}
5 POSIX specification: @url{https://pubs.opengroup.org/onlinepubs/009695399/functions/bsd_signal.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
17 Mac OS X 10.13, FreeBSD 6.0, NetBSD 7.1, Cygwin 2.9, mingw, MSVC 14.