https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85776
--- Comment #2 from Liu Hao <lh_mouse at 126 dot com> --- (In reply to Richard Biener from comment #1) > Works for me on x86_64-linux with boost 1.54.0 > > Can you please attach preprocessed source? There is one on <https://sourceforge.net/p/mingw-w64/bugs/694/> . URL: https://sourceforge.net/p/mingw-w64/bugs/694/attachment/TestClass.ii