added blocks.def.h to act as default blocks file so that changes made in

the future will not affect csutom blocks.h files.

Makefile

@@ -1,7 +1,11 @@
 PREFIX ?= /usr/local
-CC ?= cc
-output: dwmblocks.c blocks.h
-	${CC} dwmblocks.c `pkg-config --cflags x11` `pkg-config --libs x11` -o dwmblocks
+
+output: dwmblocks.c blocks.def.h blocks.h
+	cc `pkg-config --cflags x11` `pkg-config --libs x11` dwmblocks.c -o dwmblocks
+blocks.h:
+	cp blocks.def.h $@
+
+
 clean:
 	rm -f *.o *.gch dwmblocks
 install: output