Re: mxe-octave status

[John W. Eaton]

On 10/20/2017 02:06 PM, Philip Nienhuis wrote:

> > Did you
> > use --disable-system-opengl when configuring mxe-octave?
>
> No.
>
> > Do you have
> > opengl32.dll in the bin directory alongside octave-gui.exe?
>
> No.

You have to configure with --disable-system-opengl to build and use the 
mesa version of the opengl32.dll library.

> As it isn't present in the octave bin/ subdir, I suppose the one in 
> C:\Windows\System32 is invoked.

Yes.

> I tried an mxe-octave qt5 binary from Sep. 2 (fully up-to-date at that 
> time) on my work PC and there plotting and _opengl_info__ provoked no 
> crash. So the changes provoking the crash must be from after that date.
> (I think __opengl_info__'s output indicate software rendering? I saw 
> "Microsoft GDI" and version 1.1.0 in its output and only 2 or 3 struct 
> fields)

There was a recent change to use QOpenGLWidget instead of the deprecated 
QGLWidget.  Maybe that's the reason for the crash.  It improved things 
for me on GNU systems, but maybe there is a problem with Windows 
systems, or maybe we are not using it properly.

jwe