diff --git a/common.mk b/common.mk
deleted file mode 100644
index d16e3f8..0000000
--- a/common.mk
+++ /dev/null
@@ -1,10 +0,0 @@
-.SUFFIXES: .c .o
-.PHONY: all clean
-
-all: $(TARGET)
-
-.c.o:
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-clean:
-	rm -f $(TARGET) *.a *.exe *.o */*.o */*/*.o ext_*