two builds in makefile

Makefile

@@ -1,30 +1,31 @@
-OPT=-O0 -g -Wall -Wextra -Werror 
-#OPT=-O3 -DHTTP_PARSER_STRICT=0
+OPT_DEBUG=-O0 -g -Wall -Wextra -Werror 
+OPT_FAST=-O3 -DHTTP_PARSER_STRICT=0
 
-test: http_parser.o test.c
-	gcc $(OPT) http_parser.o test.c -o $@
 
-test-run: test
-	./test
+http_parser_g.o: http_parser.c http_parser.h Makefile
+	gcc $(OPT_DEBUG) -c http_parser.c
+
+test_g: http_parser_g.o test.c
+	gcc $(OPT_DEBUG) http_parser.o test.c -o $@
+
+test-run: test_g
+	./test_g
 
-test-run-timed: test
-	time ./test > /dev/null
 
 http_parser.o: http_parser.c http_parser.h Makefile
-	gcc $(OPT) -c http_parser.c
+	gcc $(OPT_FAST) -c http_parser.c
+
+test: http_parser.o test.c
+	gcc $(OPT_FAST) http_parser.o test.c -o $@
+
+test-run-timed: test
+	while(true) do time ./test > /dev/null; done
+
 
 tags: http_parser.c http_parser.h test.c
 	ctags $^
 
 clean:
-	rm -f *.o http_parser.c test http_parser.tar
-
-package: http_parser.c
-	@rm -rf /tmp/http_parser && mkdir /tmp/http_parser && \
-	cp LICENSE README.md Makefile http_parser.c \
-		http_parser.h test.c /tmp/http_parser && \
-	cd /tmp && \
-	tar -cf http_parser.tar http_parser/
-	@echo /tmp/http_parser.tar
+	rm -f *.o http_parser.c test test_g http_parser.tar
 
 .PHONY: clean package test-run test-run-timed