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From: Giorgos Keramidas <keramida@ceid.upatras.gr>
To: francis keyes <fkeymo@gmail.com>
References: <d64607cc0905191419p621f7e65tf5515d1d3696bfa0@mail.gmail.com>
	<20090520000137.3d46fcb2.freebsd@edvax.de>
	<4A135119.8010007@telenix.org>
	<d64607cc0905201045i36084a34g2a6c0d4e9d5f750d@mail.gmail.com>
Date: Thu, 21 May 2009 06:16:13 +0300
In-Reply-To: <d64607cc0905201045i36084a34g2a6c0d4e9d5f750d@mail.gmail.com>
	(francis keyes's message of "Wed, 20 May 2009 14:45:59 -0300")
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Cc: Polytropon <freebsd@edvax.de>, Chuck Robey <chuckr@telenix.org>,
	freebsd-questions@freebsd.org
Subject: Re: compiling FreeBSD date on Linux
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On Wed, 20 May 2009 14:45:59 -0300, francis keyes <fkeymo@gmail.com> wrote:
> Hmm... the date program looks pretty simple but I don't understand the
> Makfile:
>
> #    @(#)Makefile    8.1 (Berkeley) 5/31/93
> # $FreeBSD: src/bin/date/Makefile,v 1.11.30.1 2009/04/15 03:14:26 kensmith
> Exp $
>
> PROG=    date
> SRCS=    date.c netdate.c vary.c
> DPADD=    ${LIBUTIL}
> LDADD=    -lutil
>
> .include <bsd.prog.mk>
>
> Would it be possible to compile this without a makefile?

Yes, but you will also need bits of code from libutil.  If you have all
the necessary bits in a new file, i.e. util.c, then you should be able
to use:

    cc -o date date.c netdate.c vary.c util.c

Extracting the minimal parts of libutil and writing the new util.c file
is an interesting and amusing exercise for a budding C programmer, but
it should be both possible and relatively ``easy''.