Date:	Mon, 24 Feb 1997 16:11:24 -0300
Message-Id:	<1.5.4.16.19970224122356.37ef0136@dmeasc.rc.ipt.br>
Mime-Version:	1.0
To:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>,
	George Foot <gfoot AT mc31 DOT merton DOT ox DOT ac DOT uk>
From:	Cesar Scarpini Rabak <csrabak AT dce03 DOT ipt DOT br>
Subject:	Re: makefile help
Cc:	djgpp AT delorie DOT com

At 12:05 23/02/97 +0200, Eli Zaretskii wrote:
>
[snipped]
>
>Hey, that's GNU Make we are using, remember?  It doesn't need to be
>told all these trivia, it already knows about them.  All you need is
>to tell it something it *doesn't* know.  Observe:
>
>	# Variables:
>	LINK.cc = gxx $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)
>	CXXFLAGS = -Wall -O2
>	LDLIBS = -lalleg
>
>	# Main target:
>	all: foo
             ^^^^ <- This way we generate a foo _and_ foo.exe! OTOH, GNU
make doesn't make foo.exe if one puts in the all line just foo.exe!

>
>	#Dependencies (it already knows about foo.cc):
>	foo.o: foo1.h foo2.h
>
>That's all!  The above is enough to produce exactly the same effect as
>the Makefile suggested by George.  (Warning: I didn't have time to test 
>the above Makefile, so it might include errors.)
>
>If the above is knew to you, type "make -p | less" and you will see
>the huge data-base of all the built-in rules that GNU Make knows
>about.
>
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Cesar Scarpini Rabak                      E-mail: csrabak AT ipt DOT br
DME/ASC                                   Phone: 55-11-268-3522 Ext.350
IPT - Instituto de Pesquisas Tecnologicas Fax:   55-11-268-5996
Av. Prof. Almeida Prado, 532.  Sao Paulo - SP 05508-901 BRAZIL
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