Re: fltk backend and undefined gluOrtho2D

[teuobk]

John W. Eaton-3 wrote:
> 
> On 16-Jul-2009, Alexander Barth wrote:
> 
> | Hi all,
> | I try to compile a recent checkout of octave (from
> | http://www.octave.org/hg/octave). The compilation fails at:
> | 
> | ./DLD-FUNCTIONS/fltk_backend.cc: In member function �1rxvirtual void
> | OpenGL_fltk::draw_overlay()�1ry:
> | ./DLD-FUNCTIONS/fltk_backend.cc:145: error: �1rxgluOrtho2D�1ry was not
> | declared in this scope
> | 
> | I have fltk version 1.1.7. Is this version recent enough? On my system
> | gluOrtho2D is declared in /usr/include/GL/glu.h but this file is not
> | included in fltk_backend.cc.
> 
> On my system, /usr/include/GL/glu.h is part of the libglu1-mesa-dev
> package, and the version of that package is 7.0.3.  I also have
> version 1.1.9 of libfltk1.1-dev. 
> 

Ran into this problem, too.  I have fltk 1.1.9 on an Intrepid-release Ubuntu
box, and I was trying to compile Octave 3.2.0 from source.  My solution was
to edit fltk_backend.cc to #include <FL/glu.h> .  Now everything builds
fine, and all of the integrated tests pass.

Jeff Keacher
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