# Makefile by Branden J. Moore <bmoore@cse.nd.edu>

PROG = program
SRCDIR = .
CCODE = main.c 
INCDIRS = $(SRCDIR)
LIBDIRS = 
LIBS = 
LDFLAGS =

CC = gcc
CFLAGS = -Wall -Werror
COPT = -O3
CDEBUG = 


# Should not need to edit below this line

SHELL = /bin/sh
OS = $(shell uname -s)

CCVER = `$(CC) -v`
ifeq "$(findstring gcc,$(CCVER))" "gcc"
	DEPFLAG = -MM
else
	DEPFLAG = -M
endif

SOURCE = $(CCODE:%=$(SRCDIR)/%)
OBJECTS = $(SOURCE:.c=.o)
INCLUDES = $(INCDIRS:%=-I%)
LDLIBS = $(LIBDIRS:%=-L%) $(LIBS)
DEPENDENCIES = $(SOURCE:.c=.d)

ifeq "$(findstring debug,$(MAKECMDGOALS))" "debug"
	CFLAGS += -g -DEBUG
	COPT = -O0
endif

.PHONY: all depend debug clean distclean update

.SUFFIXES:
.SUFFIXES: .d .c .o

.DEFAULT: all

CFLAGS += $(INCLUDES) $(COPT) $(CDEBUG)

all debug:	depend $(PROG)

$(PROG): $(OBJECTS) 
	$(LINK.o) $(LDFLAGS) $^ -o $@ $(LDLIBS)

%.o : %.c
	$(CC) $(CFLAGS) -c $<

%.d : %.c
	@set -e; rm -f $@; \
		$(CC) $(DEPFLAG) $(CPPFLAGS) $(CFLAGS) $< > $@.$$$$; \
		sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
		$(RM) $@.$$$$
	@echo $@

clean:
	$(RM) $(OBJECTS)

distclean: clean
	$(RM) $(DEPENDENCIES) $(PROG)

depend: $(DEPENDENCIES)
ifeq ($(DEPDONE),1)
	$(MAKE) DEPDONE=1 $(MFLAGS) $(subst depend,,$(MAKECMDGOALS)) 
endif

update:
ifeq "$(wildcard CVS)" "CVS"
	@cvs update -dP .
else
	@echo "Not in CVS"
endif

ifneq "$(wildcard $(SRCDIR)/*.d)" ""
ifneq "$(findstring clean,$(MAKECMDGOALS))" "clean"
include $(wildcard $(SRCDIR)/*.d)
endif
endif