CFLAGS = $(shell pkg-config gl --cflags) $(shell pkg-config x11 --cflags)
LIBS = $(shell pkg-config gl --libs) $(shell pkg-config x11 --libs)

all: app gltest.so

gltest.so: gltest.c
	$(CC) $(CFLAGS) -fPIC -o $@ $< -shared $(LIBS)

app: app.c
	$(CC) -o $@ $< -ldl

clean:
	rm -f *.o app gltest.so