Mesa will only consider the shader a compat shader if it has an explicit "compatibility" token in the version. Without this, we don't get gl_TexCoord, used by the test.
f9f66e836 tex-miplevel-selection: force compatibility when using 430 shader
tests/texturing/tex-miplevel-selection.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)