CC=gcc
ifeq    ($(OSTYPE),linux-gnu)
  CLIB= -lm -lpthread
else
  CLIB= -lm -lnsl -lsocket -lpthread
endif

all: clean telephone #check

telephone: telephone.c Makefile
	$(CC) telephone.c pcmu_l16.c $(CLIB) -o telephone

check: checkHeader.c Makefile
	$(CC) checkHeader.c pcmu_l16.c $(CLIB) -o checkHeader

clean:
	/bin/rm -f telephone checkHeader *.o