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From: Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Subject: Re: octave says WGL_ARB_multisample is missing
To: William Mitchell <wfmacmd AT gmail DOT com>
Cc: The Cygwin Mailing List <cygwin AT cygwin DOT com>
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Message-ID: <c43f6cfe-b7d8-7c00-3b46-5aeaa40aa213@dronecode.org.uk>
Date: Sun, 8 Jul 2018 14:36:32 +0100
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On 06/07/2018 02:16, William Mitchell wrote:
> I'm afraid that didn't help any.  Now both glxinfo and octave print nothing
> and return to the shell prompt almost immediately.  For octave, this
> includes no output when I run a .m script that usually prints quite a bit
> before starting the graphics.  xeyes still runs, though.

Hmm... this probably means that the file is damaged, not executable, or 
for the wrong architecture.

Can you try:

cp /usr/bin/cygGL-1.dll /usr/bin/cygGL-1.dll.bak
wget ftp://cygwin.com/pub/cygwinx/x86_64/libGL1.tar.xz
tar -C/ -xvf libGL1.tar.xz
glxinfo

-- 
Jon Turney
Volunteer Cygwin/X X Server maintainer

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