On > Before make After make > GNAT 4.6.3 GNAT 4.6.3 > gcc 4.6.3 gcc 4.3.4 > > Regards > Raghavedra http://old.nabble.com/file/p34139421/config.log config.log Ooops. I think you want the ada people, who do not read the libstdc++ development list. You can either put this into gcc bugzilla and mark it as ada/gnat, or post to gcc-help@gcc.gnu.org -benjamin