getgrouplist
------------

Documentation:

  * Setting the Group IDs (libc),

  * man getgrouplist.

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function takes int instead of gid_t parameters on some platforms: OS X 10.11.

  * This function is missing on some platforms: Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 11.0, Cygwin 1.7.9, mingw, MSVC 14.

The Gnulib module getugroups provides a similar API.