#pragma MSP stage(vertex)
layout(location=0) in vec4 position;
out Output
{
	vec2 texcoord;
} vs_out;
out vec4 Output;
void Output();
void main()
{
	vs_out.texcoord = position.xy*0.5+0.5;
	gl_Position = position;
}

#pragma MSP stage(geometry)
layout(triangles) in;
layout(triangle_strip, max_vertices=3) out;
in Output
{
	vec2 texcoord;
} vs_out[];
out Output
{
	vec2 texcoord;
} gs_out;
out Output
{
	vec4 color;
};
void main()
{
	for(int i=0; i<3; ++i)
	{
		gs_out.texcoord = vs_out[i].texcoord;
		gl_Position = gl_in[i].gl_Position;
		EmitVertex();
	}
}

/* Expected error:
<test>:7: Multiple definition of 'Output'
<test>:3: Previous definition is here
<test>:8: Multiple definition of 'Output'
<test>:3: Previous definition is here
<test>:26: Multiple definition of interface block 'out Output'
<test>:22: Previous definition is here
*/