From 6a11370434af642913ba0d1c09ba7c8ed388c6e3 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Thu, 9 Apr 2026 11:30:33 +0100
Subject: [PATCH] Avoid BrokenPipeError errors in `qmk clean`

---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index e19f3d6bd1..fe6623fdf6 100644
--- a/Makefile
+++ b/Makefile
@@ -43,8 +43,9 @@ QMK_BIN := qmk
 
 # Try to determine userspace from qmk config, if set. Handle direct query on qmk_cli>=1.1.7
 # falling back to legacy method of only supporting user.overlay_dir config
+# sort is used to buffer 'qmk env' output and avoid BrokenPipeError errors
 export override QMK_USERSPACE := $(shell \
-    $(QMK_BIN) env | grep -q QMK_USERSPACE \
+    $(QMK_BIN) env | sort | grep -q QMK_USERSPACE \
         && $(QMK_BIN) env QMK_USERSPACE \
         || $(QMK_BIN) config -ro user.overlay_dir | cut -d= -f2 | sed -e 's@^None$$@@g')