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...or write both gl_ClipVertex and either > + * gl_ClipDistance or gl_CullDistance. > + * > + * This does not apply to GLSL ES shaders, since GLSL ES defines neither > + * gl_ClipVertex, gl_ClipDistance or gl_CullDistance. > + */ > if (clip_vertex.variable_found() && clip_distance.variable_found()) { > linker_error(prog, "%s shader writes to both `gl_ClipVertex' " > "and `gl_ClipDistance'\n", > _mesa_shader_stage_to_string(shader->Stage)); >...

This patch series adds the needed support for this extension to the various parts of mesa to finally enable it for nvc0. Dave Airlie (1): glsl: lower cull_distance into cull_distance_mesa Tobias Klausmann (10): glapi: add GL_ARB_cull_distance mesa/main: add support for GL_ARB_cull_distance mesa/prog: Add varyings for arb_cull_distance mesa/st: add support for GL_ARB_cull_distance