From 415d33de1692a65c60730da961ad3d787346b375 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 30 May 2010 23:32:08 -0700
Subject: [PATCH] Bug #322049 - Make use_with() and use_enable() handling of
 empty 3rd argument conditional on EAPI in order to ensure backward
 compatibility. This reverts the behavior change from commit
 a05bba76435d94407fd25549d0552902962baf62 for EAPI 0, 1, 2, and 3.

---
 bin/ebuild.sh | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index b46d14a63..9784298c4 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -230,7 +230,11 @@ use_with() {
 		return 1
 	fi
 
-	local UW_SUFFIX=${3+=$3}
+	if ! has "${EAPI:-0}" 0 1 2 3 ; then
+		local UW_SUFFIX=${3+=$3}
+	else
+		local UW_SUFFIX=${3:+=$3}
+	fi
 	local UWORD=${2:-$1}
 
 	if useq $1; then
@@ -248,7 +252,11 @@ use_enable() {
 		return 1
 	fi
 
-	local UE_SUFFIX=${3+=$3}
+	if ! has "${EAPI:-0}" 0 1 2 3 ; then
+		local UE_SUFFIX=${3+=$3}
+	else
+		local UE_SUFFIX=${3:+=$3}
+	fi
 	local UWORD=${2:-$1}
 
 	if useq $1; then
-- 
2.26.2