http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51140
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-15 13:12:20 UTC --- That guard should be added to eh_tm.cc but ... don't build for i386-* because that targets the 80386 processor, which doesn't have the required atomic operations, and I *really doubt you're running on an 80386 so there's no reason to unnecessary cripple your code. you should configure for i486-pc-mingw32 or better, whatever is the lowest spec you want to be able to run the generated code on
