From 1db8aa2b594a7b4b95ebcaebbc0bfd12363809e9 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Sat, 24 Jan 2026 23:14:33 +0100
Subject: ash: code shrink

function                                             old     new   delta
fg_bgcmd                                             294     296      +2
killpg                                                43       -     -43
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/0 up/down: 2/-43)             Total: -41 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
 shell/ash.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'shell')

diff --git a/shell/ash.c b/shell/ash.c
index 841ffe880..ff7f42609 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -201,6 +201,10 @@
 #include <sys/times.h>
 #include <sys/utsname.h> /* for setting $HOSTNAME */
 #include "busybox.h" /* for applet_names */
+/* smaller code: avoid linking killpg() from libc */
+#undef  killpg
+#define killpg(pgrp,sig) kill(-(pgrp),sig)
+
 #if ENABLE_FEATURE_SH_EMBEDDED_SCRIPTS
 # include "embedded_scripts.h"
 #else
-- 
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