@node initgroups
@subsection @code{initgroups}
@findex initgroups

LSB specification:@* @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-initgroups-3.html}

Documentation:
@itemize
@item
@ifinfo
@ref{Setting Groups,,Setting the Group IDs,libc},
@end ifinfo
@ifnotinfo
@url{https://www.gnu.org/software/libc/manual/html_node/Setting-Groups.html},
@end ifnotinfo
@item
@uref{https://www.kernel.org/doc/man-pages/online/pages/man3/initgroups.3.html,,man initgroups}.
@end itemize

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is unsafe to call between @code{fork} and @code{exec} if
the parent process is multi-threaded.  Instead, use @code{getgroups} or
@code{getgrouplist} (or use the gnulib module @code{mgetgroups})
before forking, and @code{setgroups} in the child.
@item
This function is missing on some platforms:
mingw, MSVC 14.
@end itemize