# the API used to draw: compile in glutil_gl1.cpp or glutil_gl2.cpp
glxtest: $(COMMON_SRC) $(COMMON_HDR) glutil_gl1.cpp glxbackend.cpp glxbackend.h
# the API used to draw: compile in glutil_gl1.cpp or glutil_gl2.cpp
glxtest: $(COMMON_SRC) $(COMMON_HDR) glutil_gl1.cpp glxbackend.cpp glxbackend.h