Makefile - let objs depend on all headers

Makefile

@@ -3,6 +3,7 @@ include Makeconf
 emu-objs := $(addsuffix .o,$(modules))
 clean-objs := $(emu-objs) libemu.a vgbc vgbc.test
 test-srcs := $(wildcard tests/*.cpp)
+headers := $(wildcard */*.h)
 
 .PHONY: all test clean
 
@@ -14,8 +15,8 @@ clean:
 test: vgbc.test
 	@./$<
 
-%.o: %.cpp
-	g++ $(CXX_FLAGS) -c -o $@ $^
+%.o: %.cpp $(headers)
+	g++ $(CXX_FLAGS) -c -o $@ $<
 
 libemu.a: $(emu-objs)
 	ar -rc $@ $^