skip shader tests if OpenGL too low

Perl-GPU / OpenGL-Modern

Perl OpenGL bindings for modern OpenGL 3.1-4.x

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Closed wchristian closed 7 years ago

wchristian commented 7 years ago

I think this fixes #37. Please have a look.

devel-chm commented 7 years ago

Seems reasonable to me since we don't have GLEW_VERSION_N_M working.