http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47753
--- Comment #5 from Dongsheng Song <dongsheng.song at gmail dot com> 2011-02-15 15:14:27 UTC --- (In reply to comment #3) > Note that since 2010-12-16, when 4.5.2 has been released, only *very small* > changes went into the 4_5-branch libstdc++ code: either the problem already > existed at least *two months* earlier the date you indicated, or is a much > more > general build issue not specifically related to libstdc++ details... or the > binutils you are using, I don't know. > > Please provide further details. I don't know which details you want, I think it's good if someone like mingw-w64 folks try building themselves. I suspect that binutils maybe the largest in charge.