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From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net>
To: freebsd-questions@freebsd.org
Date: Wed, 20 May 2009 21:30:35 +0200
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Cc: Polytropon <freebsd@edvax.de>, francis keyes <fkeymo@gmail.com>,
	Chuck Robey <chuckr@telenix.org>
Subject: Re: compiling FreeBSD date on Linux
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On Wednesday 20 May 2009 19:45:59 francis keyes 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?

This is because the under appreciated FreeBSD make system does a *lot* of work 
for you.

- You need libutil: /usr/src/lib/libutil or (probably faster), see which 
functions from libutil date uses and re-implement them.
- Resolve header issues in the above source files
- And then it's most likely easiest to use cmake or autotools on linux to 
compile.

-- 
Mel