[vtkusers] Fix Ubuntu 14.04 VTK 6.1 compiling issue

[Cory Quammen]

Severin,

Can you try Christian's solution of uncommenting the GLX_GLXEXT_LEGACY
definition to see if it works on your system?

Thanks,
Cory

On Tue, Sep 2, 2014 at 5:05 AM, Christian Askeland
<christian.askeland at gmail.com> wrote:
> Hi,
>
> I had the same issue today, on both VTK 6.1 and the current git HEAD. I use
> the NVidia driver version 343 (gl headers dated august 2014). However, a
> colleague of mine compiles VTK fine when using an older driver (331 /
> january 2014).
>
> I looked into the GL headers (/usr/include/GL/) and found that GLintptr now
> is in use in glxext.h, this was not the case in the previous version.
>
> My solution was to uncomment the define GLXEXT like this:
>
> // define GLX_GLXEXT_LEGACY to prevent glx.h to include glxext.h provided by
> // the system
> #define GLX_GLXEXT_LEGACY
> #include "GL/glx.h"
>
> #include "vtkgl.h"
>
> in file
>
> vtkXOpenGLRenderWindow.cpp
>
> which causes glext.h to be included in glxext.h, thus providing the missing
> type GLintptr.
>
> This seems like a better solution than including vtkgl.h before GL/glx.h,
> but I don't have the full picture here.
>
>
>
> Best Regards
>
> Christian Askeland
> SINTEF Medical Technology
>
>
>
>
> On Fri, Aug 29, 2014 at 9:49 AM, Severin Holzer-Graf <sholzergr at gmail.com>
> wrote:
>>
>> Hi,
>>
>> I faced the same compiling issue on Ubuntu 14.04 as mathew here:
>> http://www.vtk.org/pipermail/vtkusers/2014-August/084877.html
>> Compiling fails, because "GLsizeiptr has not been declared".
>>
>> The issue is that "vtkgl.h" is included *after* "GL/glx.h" which needs
>> the typedefs for the datatypes from "vtkgl.h".
>> I simply swapped the two lines and VTK compiles. Appended a patch that
>> shows the change.
>>
>> Interestingly on my ArchLinux system compiling VTK 6.1 works out of
>> the box and this was not necessary. I didn't further investigate that,
>> so I'm not sure if swapping the two lines is actually the correct fix.
>>
>> Best
>> Severin
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>