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From: ralsina@ultra7.unl.edu.ar (Roberto Alsina)
Newsgroups: comp.os.linux.misc,comp.os.linux.networking,comp.os.linux.setup,comp.unix.bsd.bsdi.misc,comp.unix.bsd.misc,comp.os.ms-windows.nt.advocacy,comp.os.os2.advocacy
Subject: Re: Linux vs whatever
Date: 31 Jan 1997 13:30:31 GMT
Organization: Universidad Nacional de San Luis - Argentina
Lines: 46
Message-ID: <slrn5f3sv1.snc.ralsina@ultra7.unl.edu.ar>
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In article <dickrp.854655002@wckn.dorm.clarkson.edu>, Rob wrote:
>>>On Tue, 28 Jan 1997, tethys wrote:
>>>> How? By placing it under the GPL, they ensured it will be free for
>>>> anyone to use, and port to new platforms if desired.
>
>The GPL doesn't just make software free. It makes the GPLd software
>and any software that builds upon it free.
>It's this transitive bit that many find insidious.
>
>From the GCC info file:
> b. You must cause any work that you distribute or publish, that
> in whole or in part contains or is derived from the Program
> or any part thereof, to be licensed as a whole at no charge
> to all third parties under the terms of this License.
>
>>On 28 Jan 1997 08:42:42 -0800, cjs@cynic.portal.ca (Curt Sampson)
>>wrote:
>>>Only as a separate program. It can't, for example, be integrated
>>>into WinZip or PKZIP (without forcing the author to give away full
>>>source code for WinZip or PKZIP)
>
>Alex.Butcher.DELETE.THIS@bris.ac.uk (Alex Butcher) writes:
>>Er... WinZip /DOES/ do gzip format files. I can even browse .tgz files
>>here.
>
>That doesn't necessarily mean that gzip code was integrated into WinZip.
>It means that something that has the same effect as gzip code was
>integrated into WinZip -- that the authors of WinZip re-built the wheel.
>
>-Robert Dick (dickrp@wckn.dorm.clarkson.edu)-
>
Pkzip, WinZip and gzip all use the same compression techniques. It's only
that the files generated by gzip don't have the same structure, since
gzip doesn't archive.
Try this: take any zipped archive and cat it through gzcat: you will get the
first file of the archive.
--
("\''/").__..-''"`-. . Roberto Alsina
`9_ 9 ) `-. ( ).`-._.`) ralsina@unl.edu.ar
(_Y_.)' ._ ) `._`. " -.-' Centro de Telematica
_..`-'_..-_/ /-'_.' Universidad Nacional del Litoral
(l)-'' ((i).' ((!.' Santa Fe - Argentina