add dependency

package/grep/Makefile

@@ -9,7 +9,7 @@ PKG_RELEASE:=		1
 PKG_MD5SUM:=		e848f07e3e79aa7899345d17c7e4115e
 PKG_DESCR:=		global search for a regular expression and print out matched lines
 PKG_SECTION:=		utils
-PKG_DEPENDS:=		libpcre
+PKG_DEPENDS:=		libpcre libiconv
 PKG_BUILDDEP:=		pcre
 PKG_URL:=		http://www.gnu.org/software/grep/
 PKG_SITES:=		ftp://ftp.gnu.org/gnu/grep/