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-rw-r--r--mesalib/docs/envvars.html4
1 files changed, 4 insertions, 0 deletions
diff --git a/mesalib/docs/envvars.html b/mesalib/docs/envvars.html
index 6402ec507..8c5c6abf7 100644
--- a/mesalib/docs/envvars.html
+++ b/mesalib/docs/envvars.html
@@ -62,6 +62,10 @@ This is a work-around for that.
glGetString(GL_VERSION). Valid values are point-separated version numbers,
such as "3.0". Mesa will not really implement all the features of the given
version if it's higher than what's normally reported.
+<li>MESA_GLSL_VERSION_OVERRIDE - changes the value returned by
+glGetString(GL_SHADING_LANGUAGE_VERSION). Valid values are integers, such as
+"130". Mesa will not really implement all the features of the given language version
+if it's higher than what's normally reported. (for developers only)
<li>MESA_GLSL - <a href="shading.html#envvars">shading language compiler options</a>
</ul>