diff --git a/src/.waf-1.7.11-bbc5cd6dca9f655c3704b49a62d00211/waflib/Tools/bison.py b/src/.waf-1.7.11-bbc5cd6dca9f655c3704b49a62d00211/waflib/Tools/bison.py
new file mode 100644
index 0000000..6ae7898
--- /dev/null
+++ b/src/.waf-1.7.11-bbc5cd6dca9f655c3704b49a62d00211/waflib/Tools/bison.py
@@ -0,0 +1,28 @@
+#! /usr/bin/env python
+# encoding: utf-8
+# WARNING! Do not edit! http://waf.googlecode.com/git/docs/wafbook/single.html#_obtaining_the_waf_file
+
+from waflib import Task
+from waflib.TaskGen import extension
+class bison(Task.Task):
+	color='BLUE'
+	run_str='${BISON} ${BISONFLAGS} ${SRC[0].abspath()} -o ${TGT[0].name}'
+	ext_out=['.h']
+@extension('.y','.yc','.yy')
+def big_bison(self,node):
+	has_h='-d'in self.env['BISONFLAGS']
+	outs=[]
+	if node.name.endswith('.yc'):
+		outs.append(node.change_ext('.tab.cc'))
+		if has_h:
+			outs.append(node.change_ext('.tab.hh'))
+	else:
+		outs.append(node.change_ext('.tab.c'))
+		if has_h:
+			outs.append(node.change_ext('.tab.h'))
+	tsk=self.create_task('bison',node,outs)
+	tsk.cwd=node.parent.get_bld().abspath()
+	self.source.append(outs[0])
+def configure(conf):
+	conf.find_program('bison',var='BISON')
+	conf.env.BISONFLAGS=['-d']