[Octave-bug-tracker] [bug #53186] Without osmesa it is not possible to print/getframe invisible figures

[Rik]

Follow-up Comment #10, bug #53186 (project octave):

I assume this is just an incorrect warning from configure, but that actual
offscreen rendering works correctly as long as Qt > 5.1?

That would imply adjusting this section in configure.ac


## Check for OSMesa which is needed for offscreen rendering with OpenGL
## FIXME: Check for version >= 9.0.0
OCTAVE_CHECK_LIB(OSMesa, OSMesa,
  [OSMesa library not found.  Offscreen rendering with OpenGL will be
disabled.],
  [osmesa.h GL/osmesa.h], [OSMesaCreateContext])


Could be as simple as checking the variable octave_cv_qt_opengl_os_ok and
changing the message based on the result.



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