Results for spec@arb_gpu_shader5@arb_gpu_shader5-interpolateatsample-dynamically-nonuniform

Failed to compile fragment shader: ERROR: 0:9: Use of undeclared identifier 'gl_FragColor'
ERROR: 0:10: Use of undeclared identifier 'gl_FragColor'

source:
#version 150
#extension GL_ARB_gpu_shader5 : require
in vec2 pos;
uniform int sample_id;

void
main()
{
        gl_FragColor.rg = interpolateAtSample(pos, sample_id);
        gl_FragColor.ba = vec2(0.0, 1.0);
}

PIGLIT_SOURCE_DIR="/Users/vlee/workspace/piglit" PIGLIT_PLATFORM="mixed_glx_egl"