support "#!/bin/busybox"-style wrappers. Needed for SELinux.
Patch by Yuichi Nakamura <ynakam@hitachisoft.jp>

diff --git a/Makefile.custom b/Makefile.custom
index a011d53..5562ba3 100644
--- a/Makefile.custom
+++ b/Makefile.custom
@@ -12,6 +12,17 @@
 ifeq ($(CONFIG_INSTALL_APPLET_HARDLINKS),y)
 INSTALL_OPTS:= --hardlinks
 endif
+ifeq ($(CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS),y)
+ifeq ($(CONFIG_INSTALL_SH_APPLET_SYMLINK),y)
+INSTALL_OPTS:= --sw-sh-sym
+endif
+ifeq ($(CONFIG_INSTALL_SH_APPLET_HARDLINK),y)
+INSTALL_OPTS:= --sw-sh-hard
+endif
+ifeq ($(CONFIG_INSTALL_SH_APPLET_SCRIPT_WRAPPER),y)
+INSTALL_OPTS:= --scriptwrapper
+endif
+endif
 install: $(srctree)/applets/install.sh busybox busybox.links
 	$(Q)DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
 		$(SHELL) $< $(CONFIG_PREFIX) $(INSTALL_OPTS)