fix to applet_source_list rule so Debian package continues to build
diff --git a/Makefile b/Makefile
index 66a951f..76e5022 100644
--- a/Makefile
+++ b/Makefile
@@ -274,7 +274,7 @@
 	@if [ ! -L sh.c ] ; then ln -s lash.c sh.c ; fi
 
 applet_source_list: sh_link busybox.sh Config.h
-	@(echo -n "APPLET_SOURCES := "; $(SHELL) busybox.sh Config.h $(BB_SRC_DIR)) > $@
+	(echo -n "APPLET_SOURCES := "; $(SHELL) $(filter-out sh_link, $^) $(BB_SRC_DIR)) > $@
 
 doc: olddoc