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>

1 files changed, 4 insertions, 0 deletions

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