[Fluxus] multitexture automatic checking

[gabor papp]

> libfluxus/src/PolyPrimitive.cpp:135: error: 'GLEW_ARB_multitexture' was
> not declared in this scope
i added the missing include file to the cpp files. now it compiles, but
crashes on my macbook:

#0  0x00000000 in ?? ()
#1  0x02690ddb in Fluxus::TexturePainter::Initialise (this=0xac4240) at
libfluxus/src/TexturePainter.cpp:45
#2  0x0268a7f3 in Fluxus::Renderer::PreRender (this=0x1016e00,
CamIndex=0, PickMode=false) at libfluxus/src/Renderer.cpp:276
#3  0x0268b964 in Fluxus::Renderer::Render (this=0x1016e00) at
libfluxus/src/Renderer.cpp:132
#4  0x02629dcb in fluxus_render (argc=0, argv=0x9e4fa8) at
modules/fluxus-engine/src/FluxusEngine.cpp:149
#5  0x034cd8fe in ?? () at iostream:76
#6  0x005fc572 in scheme_do_eval ()
#7  0x005fcb24 in _scheme_apply_multi_from_native ()
#8  0x009ae3c6 in ?? ()
#9  0x005fc572 in scheme_do_eval ()
#10 0x00600546 in eval_k ()

best,
gabor