http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49084 --- Comment #18 from Kai Tietz <ktietz at gcc dot gnu.org> 2011-12-13 09:18:55 UTC --- Hmm, other way to solve this might be to add to structure the optional attribute gcc_struct. At least I used that to fix libquadmath for 32-bit IA Windows.