From owner-freebsd-ports@FreeBSD.ORG  Fri Sep  3 12:43:07 2004
Return-Path: <owner-freebsd-ports@FreeBSD.ORG>
Delivered-To: freebsd-ports@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 6CC4216A4CE
	for <ports@freebsd.org>; Fri,  3 Sep 2004 12:43:07 +0000 (GMT)
Received: from sccmmhc92.asp.att.net (sccmmhc92.asp.att.net [204.127.203.212])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0B02E43D45
	for <ports@freebsd.org>; Fri,  3 Sep 2004 12:43:07 +0000 (GMT)
	(envelope-from stephen@math.missouri.edu)
Received: from [10.0.0.3] (12-216-240-169.client.mchsi.com[12.216.240.169])
          by sccmmhc92.asp.att.net (sccmmhc92) with ESMTP
          id <20040903124305m920002t9ge>; Fri, 3 Sep 2004 12:43:06 +0000
Message-ID: <413866D8.1020104@math.missouri.edu>
Date: Fri, 03 Sep 2004 07:43:04 -0500
From: Stephen Montgomery-Smith <stephen@math.missouri.edu>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20040825
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: =?ISO-8859-1?Q?Lars_K=F6ller?= <lars.koeller@uni-bielefeld.de>
References: <200409030732.i837WOw05534@rayadm.hrz.uni-bielefeld.de>
In-Reply-To: <200409030732.i837WOw05534@rayadm.hrz.uni-bielefeld.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit
cc: ports@freebsd.org
cc: lars@koellers.net
Subject: Re: single precision fftw wanted
X-BeenThere: freebsd-ports@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Porting software to FreeBSD <freebsd-ports.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ports>,
	<mailto:freebsd-ports-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ports>
List-Post: <mailto:freebsd-ports@freebsd.org>
List-Help: <mailto:freebsd-ports-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ports>,
	<mailto:freebsd-ports-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 03 Sep 2004 12:43:07 -0000

Lars Köller wrote:
> ----------
> 
> In reply to Stephen Montgomery-Smith who wrote:
>  
> 
>>Dear Lars and ports,
>>
>>I am interested in creating a port for gromacs (http://www.gromacs.org) 
>>and it requires fftw built using single precision.  The super-easy way 
>>is to create a port sfftw which is a copy of fftw with a line like
>>CONFIGURE_ARGS+=        --enable-float --enable-type-prefix
>>added in.  Or I could add some kind of option to fftw.  Anyway, since 
>>Lars is the maintainer of fftw I would like to coordinate with him about 
>>it.  And I am copying this to ports as well just in case anyone else has 
>>suggestions.
> 
> 
> Hi, I'm just back from holidays. I think if we have the requirement of 
> a single precision of another port, it is the only solution to make a 
> separate port.
> 
> However, are the libraries separated, so it is possible to have both 
> installed?
> 

Yes - if one builds fftw correctly, the only common files between single 
precision and double precision will be the docs.