octave-3.1.50.tar.bz2 misses gl-render.cc

[John W. Eaton]

On 20-Jul-2008, Michael Goffioul wrote:

| Can anybody confirm?

Instead of using

  GL_RENDER_SRC = @GL_RENDER_SRC@
  FLTK_BACKEND_SRC = @FLTK_BACKEND_SRC@

in src/Makefile.in, and completely omitting these files from the build
process when the prerequisites aren't available, I'd suggest modifying
them so they can always be compiled.  Then the files can simply be
listed in the Makefile.in and problems like this won't occur.

The DEFUNs should also be modified to print errors like

  error: __init_fltk__: FLTK functions are not available in this version of 
Octave

or similar.

Thanks,

jwe