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Date:	Mon, 6 Jun 2005 10:40:46 -0400 (EDT)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	Alireza Ghasemi <ali DOT foolad AT gmail DOT com>
cc:	cygwin AT cygwin DOT com
Subject:	Re: Mysterious problem
In-Reply-To:	<000301c56a9b$5d90e820$8b2fb5d5@keloasc60pobkb>
Message-ID:	<Pine.GSO.4.61.0506061032580.15703@slinky.cs.nyu.edu>
References:	<000301c56a9b$5d90e820$8b2fb5d5 AT keloasc60pobkb>
MIME-Version:	1.0

On Mon, 6 Jun 2005, Alireza Ghasemi wrote:

> Hello,
> I have some eccentric problem with building source packages in cygwin.It
> began from tar-1.13.18.it compiled correctly and exe was built.but when
> operating,all produced .tar files were empty!!Whereas binary tar package in
> cygwin mirror had no problem.

Which source are you using to build tar?  It can't be the Cygwin package
one, as the current Cygwin version is 1.3.25.

> Another one was grep.I built v2.4.2 and installed it with no problem.but
> when operating,some source packages were not configured and said "grep:lseek
> not found".I changed grep into one in cygwin mirror and problem was solved.

Ditto for grep (it's 2.5 for Cygwin).

> Now I don't know what to say.Do you do magic things when porting packages?!
> Thanks.

Yes.  Magic things do need to be done to port packages.  Cygwin is a
different platform, so some packages won't work OOTB.  That's why it's
called "porting" rather than "compiling".  Do you think the Cygwin package
maintainers simply downloaded the source and compiled it and released this
as a package?  Though some did, most didn't -- the packages needed porting
(in some cases very heavy and invasive porting).

You can learn a lot about the idiosyncracies of Cygwin by looking at the
patches the maintainers made to the packages (in the Cygwin source
packages).
	Igor
P.S. Your spacebar key still doesn't seem to do the right thing after
punctuation...  I *know* it's not a Gmail problem.
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"The Sun will pass between the Earth and the Moon tonight for a total
Lunar eclipse..." -- WCBS Radio Newsbrief, Oct 27 2004, 12:01 pm EDT

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