xdelta requires zlib

xdelta/xdelta.spec

@@ -40,8 +40,8 @@ Source0:      http://download.sourceforge.net/xdelta/xdelta-%{version}.tar.gz
 #   build information
 Prefix:       %{l_prefix}
 BuildRoot:    %{l_buildroot}
-BuildPreReq:  OpenPKG, openpkg >= 0.9-20011025.0, glib
-PreReq:       OpenPKG, openpkg >= 0.9-20011025.0, glib
+BuildPreReq:  OpenPKG, openpkg >= 0.9-20011025.0, glib, zlib
+PreReq:       OpenPKG, openpkg >= 0.9-20011025.0, glib, zlib
 AutoReq:      no
 AutoReqProv:  no