# Makefile for GNU make .PHONY: all 02_vertex_and_fragment_program .DEFAULT all: 02_vertex_and_fragment_program 02_vertex_and_fragment_program: $(MAKE) -f Makefile.02_vertex_and_fragment_program 02_vertex_and_fragment_program .DEFAULT: $(MAKE) -f Makefile.02_vertex_and_fragment_program $@