From 9370ca73534408e928474c4a808eb04051e435d3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Fri, 31 Jan 2020 15:56:48 +0100
Subject: [PATCH] user.eclass: enewgroup, allow -1 as gid
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Allow using '-1' to specify 'next free GID' for enewgroup.  While
technically this can already be specified by omitting gid, allowing -1
improves consistency with enewuser.

Closes: https://bugs.gentoo.org/707508
Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
 eclass/user.eclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eclass/user.eclass b/eclass/user.eclass
index a33915e21192..b70698356a3a 100644
--- a/eclass/user.eclass
+++ b/eclass/user.eclass
@@ -252,7 +252,7 @@ enewgroup() {
 
 	# handle gid
 	local egid=$1; shift
-	if [[ ! -z ${egid} ]] ; then
+	if [[ -n ${egid} && ${egid} != -1 ]] ; then
 		if [[ ${egid} -gt 0 ]] ; then
 			if [[ -n $(egetent group ${egid}) ]] ; then
 				[[ -n ${force_gid} ]] && die "${FUNCNAME}: GID ${egid} already taken"
-- 
2.26.2