getgroups
=========

POSIX specification: http://www.opengroup.org/onlinepubs/9699919799/functions/getgroups.html

Gnulib module: getgroups

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: mingw.

  * On Ultrix 4.3, getgroups (0, 0) always fails.  See macro AC_FUNC_GETGROUPS.

Portability problems not fixed by Gnulib: