# $Id: Makefile 738 2008-02-09 00:55:52Z phf $
#
# Simple Makefile with a few targets, including the common
# targets "all" to build all targets in the project as well
# as "clean" to remove targets and temporary files, getting
# back a "clean slate".
#
# Note that it is *very* important to use *tabs* in lines
# that contain commands, *not* spaces! Strange file format,
# but that's what it is, no use complaining about it. :-/

CFLAGS=-ansi -pedantic -Wall -Wextra -std=c99 -O
CC=gcc

# The first target is what gets built if you just say
# "make" on the command line; it's "tradition" to call
# it "all" and build all other targets from it.
all:	cat wc functions grep arrays rpn

# You can provide an explicit command to build the target,
# but in this case you shouldn't since the default rule is
# quite good enough... :-)
cat:	cat.c
#	gcc $(CFLAGS) -o cat cat.c

functions:	functions.c

# For the RPN calculator we need to do a little more, since
# we want to build stack.o and rpn.o separately, then link.o
# Again, note the $^ special allowing us to refer to all the
# dependencies without listing them again redundantly. :-)
# Also, stack.o and rpn.o get build correctly with default
# rules, so nothing else is necassry to state explicitly.
rpn:	stack.o rpn.o
	gcc $(CFLAGS) $^ -o rpn

# for the others, we just rely on the defaults...

# Example for various indentation styles, including Peter's
# preferred style (well, not quite, but close)... :-) Note
# that this works only with GNU indent, BSD indent (OS X)
# doesn't know what -gnu or -kr is; so install GNU indent
# if you want to follow these.
indent:
	indent -gnu grep.c -o grep_gnu.c
	indent -kr grep.c -o grep_kr.c
	indent -orig grep.c -o grep_bsd.c
	indent -kr -nce -ncdw -ci2 -cli2 -i2 grep.c -o grep_phf.c

# The "clean" target doesn't produce anything, so we mark
# it "PHONY"; if you want the details, just google around.
.PHONY: clean
clean:
	rm -rf cat wc functions grep grep_*.c arrays *.o rpn