[Bug][Building script][linux] New building script for linux problems

Hi there.

In new building script on master (for linux)
we have following line in file cocos2dx/proj.linux/cocos2dx.mk

OBJECTS := $(subst $(COCOS_ROOT)/,,$(OBJECTS))

when i want to compile with this line i get errors like:

make: *** No rule to make target `obj/release/srcAppDelegate.o', needed by `bin/release/Game'.  Stop.

when i change that line for this one everything is ok so it’s a bug or what?

OBJECTS := $(subst $(COCOS_ROOT),,$(OBJECTS))