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I have built a make file for my project, and it works (everything compiles) but it gives these irritating error messages: make: Circular zpr.c <- zpr.o dependency dropped. gcc -Wall -c -o zpr.o zpr.c make: Circular readjpeg.c <- readjpeg.o dependency dropped. gcc -Wall -c -o readjpeg.o readjpeg.c make: Circular readppm.c <- readppm.o dependency dropped. gcc -Wall -c -o readppm.o readppm.c make: Circular SceneNode.cpp <- SceneNode.o dependency dropped. g++ -c -o SceneNode.o SceneNode.cpp make: Circular BoundingBoxNode.cpp <- BoundingBoxNode.o dependency dropped. g++ -c -o BoundingBoxNode.o BoundingBoxNode.cpp make: Circular GeometryNode.cpp <- GeometryNode.o dependency dropped. g++ -c -o GeometryNode.o GeometryNode.cpp make: Circular SceneGraph.cpp <- SceneGraph.o dependency dropped. g++ -c -o SceneGraph.o SceneGraph.cpp make: Circular testgraph.cpp <- testgraph.o dependency dropped. g++ -c -o testgraph.o testgraph.cpp My makefile is not complicated at all so hopefully someone can spot the error. GXX=g++ CC=gcc CFLAGS=-Wall LIBS=-lGL -lglut -ljpeg OBJS=helpers.o loadobj.o zpr.o readjpeg.o readppm.o SceneNode.o BoundingBoxNode.o GeometryNode.o SceneGraph.o testgraph.o OBJS2=testgraph.o SceneGraph.o GeometryNode.o BoundingBox.o SceneNode.o readppm.o readjpeg.o zpr.o loadobj.o helpers.o SRCS=testgraph.cpp SceneGraph.cpp SceneNode.cpp .o.cpp: $(GXX) $(CFLAGS) -c $< .o.c: $(CC) $(CFLAGS) -c $< testgraph: $(OBJS) $(GXX) $(LIBS) $(OBJS) -o testgraph clean: rm *.o

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