Domenico Andreoli wrote: > i had to downgrade libstdc++-4.4 to 4.4.2-1, which indeed was updated > today. the build of apt died during the g++ autoconf test but later > builds died elsewhere. I ran into the same issue today. Both apt and aptitude started segfaulting after upgrading libstdc++6 from 4.4.2-1 to 4.4.2-2. After downgrading that plus three related packages it all worked again. I see you filed #554574 for this. Thanks. Cheers, FJP