From f8f9e28a99ecf788f8fff183f142b4482e26a0ae Mon Sep 17 00:00:00 2001
From: kiwixz <kiwixz@outlook.com>
Date: Mon, 16 Jan 2023 18:58:58 +0100
Subject: [PATCH] add a dash in front of MAKEFLAGS with single letter options

---
 misc/tools/all/xonotic.subr | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/misc/tools/all/xonotic.subr b/misc/tools/all/xonotic.subr
index 3acd42e5..0f65ac26 100644
--- a/misc/tools/all/xonotic.subr
+++ b/misc/tools/all/xonotic.subr
@@ -134,6 +134,8 @@ case "$cmd" in
 			if [ -n "$WE_HATE_OUR_USERS" ]; then
 				MAKEFLAGS="$MAKEFLAGS DP_MAKE_TARGET=mingw"
 			fi
+		elif echo $MAKEFLAGS | head -c1 | grep -qv -; then # MAKEFLAGS starts with a single letter option
+			MAKEFLAGS=-$(echo $MAKEFLAGS)                  # echo here and above will trim whitespaces
 		fi
 
 		if [ -n "$WE_HATE_OUR_USERS" ]; then
-- 
2.39.2