http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53707 --- Comment #5 from Rafał Mużyło <galtgendo at o2 dot pl> 2012-06-18 09:46:17 UTC --- The wrong code here seems to be 'n' treated as a constant - there was a bug (regarding freeciv, IIRC) of a similar case for an older gcc version. As for gcc 4.6.4, when will it be released ?