PROGRAM = 01_glbitmap.exe
SRC = $(PROGRAM:%.exe=%.c)

ifeq ($(MSYSTEM),MINGW64)

# --------------------
# MSYS2 MINGW64

$(PROGRAM): $(SRC) image_32x32.h image_lena.h  Makefile
	gcc $< -o $@ -lglu32 -D FREEGLUT_STATIC -lfreeglut -lopengl32 -lwinmm -lgdi32 -static

else

# --------------------
# MinGW

$(PROGRAM): $(SRC) image_32x32.h image_lena.h  Makefile
	gcc $< -o $@ -lglu32 -D FREEGLUT_STATIC -lfreeglut_static -lopengl32 -lwinmm -lgdi32

endif

image_32x32.h: image_32x32.png Makefile
	python png2bits.py -i $< --label image_32x32 > $@

image_lena.h: image_lena.png Makefile
	python png2bits.py -i $< --label image_lena > $@

.PHONY: clean
clean:
	rm -f *.exe
	rm -f *.o
	rm -f image_32x32.h
	rm -f image_lena.h