Without this patch, shellinabox is invisible in menuconfig until zlib is first selected, which likely is not what was intended.
@@ -29,7 +29,7 @@ define Package/shellinabox
SECTION:=net
CATEGORY:=Network
TITLE:=Shell In A Box
- DEPENDS:= zlib
+ DEPENDS:= +zlib
URL:=http://shellinabox.googlecode.com
endef