X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=doc%2Fposix-functions%2Fgetgroups.texi;h=0e838f77cd17473c3130030c26120c483afa473b;hb=a905b35027f406a031a844995b32b7b9291d0336;hp=a8478eb588ea7e1ad199f6a431619079e45ff3d0;hpb=1e642be936b3a09f6200d753f035ce045d9c5dac;p=gnulib.git

diff --git a/doc/posix-functions/getgroups.texi b/doc/posix-functions/getgroups.texi
index a8478eb58..0e838f77c 100644
--- a/doc/posix-functions/getgroups.texi
+++ b/doc/posix-functions/getgroups.texi
@@ -25,4 +25,10 @@ even though that was a different size than an array of @samp{gid_t}.
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+It is unspecified whether the effective group id will be included in
+the returned list, nor whether the list will be sorted in any
+particular order.  For that matter, some platforms include the
+effective group id twice, if it is also a member of the current
+supplemental group ids.
 @end itemize