http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60830
--- Comment #36 from Denis Excoffier <g...@denis-excoffier.org> --- (In reply to Bernd Edlinger from comment #35) > would not using --disable-sjlj-excaptions cause any problems, > maybe a unwanted ABI-Change? I don't know really. Cygwin people usually build gcc using --disable-sjlj-exceptions and the /usr/bin/cyggcc_s-1.dll is never very far. Without --disable-sjlj-exceptions, you get a ${prefix}/bin/cyggcc_s-sjlj-1.dll, and i believe that cyggcc_s-1.dll and cyggcc_s-sjlj-1.dll are not supposed to live together very well.