Update REQUIRES so that we do not accidentally build using the system headers of jpeg,zlib,png,mng when we are supposed to be building using the Mozilla copies of these libraries.

Bug #97386 r=mcafee a=dbaron

modules/libjar/standalone/Makefile.in

@@ -30,7 +30,7 @@ include $(srcdir)/../objs.mk
 
 MODULE		= jar
 LIBRARY_NAME	= jar$(VERSION_NUMBER)_s
-REQUIRES	= xpcom string caps
+REQUIRES	= xpcom string caps $(ZLIB_REQUIRES)
 
 #DEP_XPIDLSRCS	= $(MODULES_LIBJAR_XPIDLSRCS)
 #EXPORTS		= $(MODULES_LIBJAR_LEXPORTS)