Index: llvm/trunk/docs/conf.py
===================================================================
--- llvm/trunk/docs/conf.py
+++ llvm/trunk/docs/conf.py
@@ -251,3 +251,7 @@
 
 # FIXME: Define intersphinx configuration.
 intersphinx_mapping = {}
+
+# Pygment lexer are sometimes out of date (when parsing LLVM for example) or
+# wrong. Suppress the warning so the build doesn't abort.
+suppress_warnings = [ 'misc.highlighting_failure' ]