7 // From section 7.1 (Built-In Language Variables) of the GLSL 4.10
10 // It is also a compilation error to redeclare a built-in block
11 // and then use a member from that built- in block that was not
12 // included in the redeclaration.
14 // This appears to be a clarification to the behaviour established for
15 // gl_PerVertex by GLSL 1.50, therefore we test it using GLSL version
18 // In this test the variable that we attempt to use before redeclaring
19 // gl_PerVertex is not included in the redeclaration of gl_PerVertex.