Gnulib module: extensions
Portability problems fixed by Gnulib:
- This function has an incompatible declaration on some platforms:
Solaris 11.4 (when
_POSIX_PTHREAD_SEMANTICS is not defined).
Portability problems not fixed by Gnulib:
- This function is missing on some platforms:
Minix 3.1.8, mingw, MSVC 14.
- On Linux/glibc platforms before the advent of NPTL, signals could only be
sent to one particular thread. In POSIX, signals are sent to the entire
process and executed by any thread of the process that happens to have the
particular signal currently unblocked.