group declarations "Declarations"

	case redeclare_gl_FragColor
		version 130
		expect compile_fail
		vertex ""
			#version 130
			${VERTEX_DECLARATIONS}
			void main()
			{
				${VERTEX_OUTPUT}
			}
		""
		fragment ""
			#version 130
			out vec4 gl_FragColor;
			void main()
			{
				gl_FragColor = vec4(1.0);
			}
		""
	end

	case redeclare_gl_FragData
		version 130
		expect compile_fail
		vertex ""
			#version 130
			${VERTEX_DECLARATIONS}
			void main()
			{
				${VERTEX_OUTPUT}
			}
		""
		fragment ""
			#version 130
			out vec4 gl_FragData[];
			void main()
			{
				gl_FragData[0] = vec4(1.0, 1.0, 1.0, 1.0);
			}
		""
	end

end # invalid_declarations