http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53350
--- Comment #10 from Marc Glisse <glisse at gcc dot gnu.org> 2012-05-17 06:11:43 UTC --- (In reply to comment #9) > The main issue is that it doesn't work in 6.4.1, which is the version provided > in Ubuntu 11.10, which means that anyone running 11.10 won't be able to > compile > programs that use this boost header. > > Should I file a bug in Launchpad to get the fix backported or something? Contacting your distributor is indeed the only way of getting the fix in your distribution (don't know what their policy is). Since you say the problem does not appear with 4.6.3, I guess we can close the bug report here. By the way, when you say the problem doesn't exist with 4.6.3, did you give it the original program or the preprocessed sources?