-OBJS=main.o init.o actions1.o actions2.o score.o misc.o
-SOURCES=$(OBJS:.o=.c) COPYING NEWS README TODO advent.text control
+CC?=gcc
+CCFLAGS=-std=c99 -O0 --coverage
+LIBS=
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S),Linux)
+ LIBS=-lrt
+endif
+
+OBJS=main.o init.o actions1.o actions2.o score.o misc.o database.o
+DOCS=COPYING NEWS README TODO advent.adoc history.adoc index.adoc hints.adoc
+SOURCES=$(OBJS:.o=.c) advent.h funcs.h adventure.text $(DOCS) control