2 @section @code{sigwait}
5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/sigwait.html}
7 Gnulib module: extensions
9 Portability problems fixed by Gnulib:
12 This function has an incompatible declaration on some platforms:
13 Solaris 11 2010-11 (when @code{_POSIX_PTHREAD_SEMANTICS} is not defined).
16 Portability problems not fixed by Gnulib:
19 This function is missing on some platforms:
22 On Linux/glibc platforms before the advent of NPTL, signals could only be
23 sent to one particular thread. In POSIX, signals are sent to the entire
24 process and executed by any thread of the process that happens to have the
25 particular signal currently unblocked.