@node setgroups @subsection @code{setgroups} @findex setgroups LSB specification:@* @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-setgroups-2.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/man2/setgroups.2.html,,man setgroups}. @end itemize Gnulib module: --- Portability problems fixed by Gnulib: @itemize @end itemize Portability problems not fixed by Gnulib: @itemize @item This function is missing on some platforms: AIX 5.1, mingw, MSVC 14. @item On very old systems, this function operated on an array of @samp{int}, even though that was a different size than an array of @samp{gid_t}; you can use autoconf's AC_TYPE_GETGROUPS to set @code{GETGROUPS_T} to the appropriate size (since @code{getgroups} and @code{setgroups} share the same bug). @end itemize