diff -up waf-1.8.11/docs/sphinx/wscript.orig waf-1.8.11/docs/sphinx/wscript
--- waf-1.8.11/docs/sphinx/wscript.orig	2015-06-11 18:11:04.000000000 +0200
+++ waf-1.8.11/docs/sphinx/wscript	2015-06-22 18:36:02.078701412 +0200
@@ -19,7 +19,6 @@ def configure(cfg):
 	cfg.find_program('convert', var='CONVERT')
 	cfg.load('daemon', tooldir=['../../playground/daemon/'])
 	cfg.find_program("sphinx-build", var="SPHINX_BUILD")
-	cfg.env.SPHINX_ARGS = ['-W']
 
 def build(bld):
 	bld.path.make_node('_static').mkdir()