Try /usr/xpg4/bin/id (Solaris 7) if plain 'id' doesn't work.

diff --git a/tests/group-names b/tests/group-names
index ee1e5b9..94a7f79 100644 (file)
--- a/tests/group-names
+++ b/tests/group-names
@@ -2,7 +2,7 @@
 # Set `groups' to a space-separated list of at least two groups of which
 # the user is a member.
 
-groups=${FETISH_GROUPS-`id -nG 2>/dev/null`}
+groups=${FETISH_GROUPS-`(id -nG || /usr/xpg4/bin/id -nG) 2>/dev/null`}
 case "$groups" in
   *' '*) ;;
   *) cat <<EOF 1>&2