Package: gcc-4.5 Version: 4.5.1-2 Severity: important Forwarded: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44802 This is upstream http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44802 In other words, as soon as you use visibility and commodity archives, you can't use LTO. Which makes it worthless for any big enough project :)