macOS: officially upgrade to 10.9 libraries from lib/darwin.

This removes a bunch of code that is no longer needed, and running
"make update" will now automatically download the new libraries.

Differential Revision: https://developer.blender.org/D2861

GNUmakefile

@@ -419,10 +419,15 @@ icons: .FORCE
 	"$(BLENDER_DIR)/release/datafiles/prvicons_update.py"
 
 update: .FORCE
+	if [ "$(OS_NCASE)" == "darwin" ] && [ ! -d "../lib/$(OS_NCASE)" ]; then \
+		svn checkout https://svn.blender.org/svnroot/bf-blender/trunk/lib/$(OS_NCASE) ../lib/$(OS_NCASE) ; \
+	fi
 	if [ -d "../lib" ]; then \
+		svn cleanup ../lib/* ; \
 		svn update ../lib/* ; \
 	fi
-	git pull --rebase
+	git submodule update --init --recursive
+	git submodule foreach git checkout master
 	git submodule foreach git pull --rebase origin master