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// From the ARB_separate_shader_objects spec v.25:
//
// "To use any built-in input or output in the gl_PerVertex and
// gl_PerFragment blocks in separable program objects, shader code
// must redeclare those blocks prior to use. A separable program
// will fail to link if:
//
// * it contains multiple shaders of a single type with different
// redeclarations of these built-in input and output blocks; or
//
// * any shader uses a built-in block member not found in the
// redeclaration of that block."
[require]
GLSL >= 1.50
GL_ARB_separate_shader_objects
SEPARABLE PROGRAM ENABLED
[vertex shader]
#version 150
void main()
{
gl_PointSize = float(1.0);
}
[geometry shader]
#version 150
layout (points) in;
layout (points, max_vertices = 1) out;
out vec4 g_color;
void main()
{
g_color = vec4(gl_in[0].gl_PointSize);
EmitVertex();
}
[fragment shader]
#version 150
in vec4 g_color;
out vec4 color;
void main()
{
color = g_color;
}
[test]
link error
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