id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5935	ambiguios loaded operator	zyzhang@…	Joel de Guzman	"Hello, 

I got the following error when building boost with cmake:
/home/zzhang/boost/src/boost/spirit/home/karma/nonterminal/rule.hpp:231: error: call of overloaded `pre_transform(const expression_ast&)' is ambiguous

Thanks, 
Zhiyong"	Bugs	closed	To Be Determined	spirit	Boost Release Branch	Problem	invalid