id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3329	Boost::Statechart: Shadow Variables Cause Warnings/Errors When Headers Are Not in System Path	gerickson@…	Andreas Huber	"I've recently added Boost 1.39.0 to an Xcode 3.1.3 project with the following warnings enabled in GCC/G++ 4.0.1:

-Werror -Wreturn-type -Wunused-function -Wunused-label -Wunused-variable -Wshadow

Unfortunately, when boost is not installed in a ""system"" path--as is the case here--unused and shadow variable warnings cause the build to fail when warnings are treated as errors.

The included header is:

boost/statechart/result.hpp

To test and fix, I isolated with:

printf ""#include <${BoostHeader}>\nint main(void) { return 0; }"" | /Developer/usr/bin/gcc-4.0 -x c++ -Wall -Wshadow -Werror -o test -I${BoostRoot}/boost/include -

The patch to address this is attached.

Because this problem seems to come up frequently in all Boost subsystems, perhaps there is a way -Wshadow and -Wall can be forced for all unit tests?"	Bugs	closed	Boost 1.43.0	statechart	Boost 1.39.0	Problem	fixed