[Paraview] Build errors due to missing OSMesa include directory

[Paul Melis]

On 08/06/13 21:58, Paul Melis wrote:
> The strange thing is that I've been using the cmake config line I 
> posted earlier on a different cluster and there it works fine.
>
And as always just after you post something you come up with the next 
step to take, ah well, it's late :)

I just compared the working build against the build missing GL/gl.h and 
the difference is that with the working build what actually gets 
included is /usr/include/GL/gl.h, not the GL/gl.h header from the OSMesa 
installation (hooray for gcc -E). On the system where the build fails 
there is no system-wide <GL/gl.h>, as it has no GPUs, no X, etc... and 
the OSMesa include dir isn't doesn't get correctly added to the search path.

Workaround: add a -I <osmesa include directory> to CMAKE_CXX_FLAGS

(which is just what you suggested while I was writing this and waiting 
(even at make -j64) for my build to finish :))

Blegh, that took better part of a day,
Paul