From owner-freebsd-ports@FreeBSD.ORG  Wed May 15 21:36:52 2013
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From: naddy@mips.inka.de (Christian Weisgerber)
Subject: Re: png problem with tar on 8.x
Date: Wed, 15 May 2013 21:36:44 +0000 (UTC)
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References: <20130514213049.GC9500@pcjas.obspm.fr>
 <CA+7WWScOOPb8GkkTr3LWzPsX8gMTQEiLi0GYwRwrmXtpG6htfA@mail.gmail.com>
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Kimmo Paasiala <kpaasial@gmail.com> wrote:

> > ===>  Extracting for png-1.5.15
> > => SHA256 Checksum OK for libpng-1.5.15.tar.xz.
> 
> Check what the fetched file actually contains. If you're behind a
> forced proxy that inserts a standard page for failed http requests the
> file you get will contain that page in html and the fetch(1) will
> succeed but the contents of the file will be wrong of course.

... and the SHA256 checksum will not match.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de