id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
138	duplicated 'using toolset' with same commands and same options should not be an error	fabien.chene@…	somebody	"
duplicated 'using toolset' causes an error even if the same options are used.

the following example should not cause an error because ""default"" command lines are identical 
and there are no options.

using gcc : 4.1.2 ;
using gcc : 4.1.2 ;

The following example should cause an error, command lines are not identical:

using gcc : 4.1.2 : ccache g++ ;
using gcc : 4.1.2 ;

The following example should cause an error, options are different:

using gcc : 4.1.2 : ccache g++ <compileflags>-m64 ;
using gcc : 4.1.2 : ccache g++ ;
"	defect	new	minor		component1	2.0