# for HP, I'm told that you need:
# LDLIBS = -lstr
# everybody else (that I know of) just needs:
-# LDLIBS =
+# LDLIBS =
LDLIBS =
CC = gcc
all: dccpping
-dccpping: dccpping.c
- ${CC} ${CFLAGS} ${LDLIBS} dccpping.c -odccpping
+dccpping: dccpping.c checksums.h checksums.o Makefile
+ ${CC} ${CFLAGS} ${LDLIBS} dccpping.c checksums.o -odccpping
+
+checksums.o: checksums.c checksums.h Makefile
+ ${CC} ${CFLAGS} ${LDLIBS} -c checksums.c -ochecksums.o
install: dccpping