contrib: 'make' is now 'make using-bin' on Mac OS X/intel

Use 'make using-src' or 'make src' to build from source. Then 'make package-macosx' to generate a contrib package. This package has to be uploaded to ftp.videolan.org/pub/videolan/testing/contrib/package-macosx-ARCH-REV.tar.bz2. And update the contrib Makefile to use the new REV.

extras/contrib/Makefile

@@ -27,9 +27,20 @@ include ./config.mak
 
 BUILDDIRS = bin doc etc include info lib man sbin share vlc-lib tmp gecko-sdk
 
-all:
+ifdef HAVE_DARWIN_OS_ON_INTEL
+TARGETALL=using-bin
+else
+TARGETALL=using-src
+endif
+
+all: $(TARGETALL)
+
+using-src:
 	$(MAKE) -C src
 
+# shortcut
+src: using-src
+
 ifdef HAVE_DARWIN_OS
 
 CONTRIBREV=20080922