You're receiving this bug because the package in Summary has produced _FORTIFY_SOURCE related warnings indicating the presence of a sure overflow in a static buffer. Even though this is not always an indication of a security problem it might even be. So please check this out ASAP. By the way, _FORTIFY_SOURCE is disabled when you disable optimisation, so don't try finding out the cause using -O0. Thanks, Your friendly neighborhood tinderboxer
Created attachment 247527 [details] Build log
+*acpitool-0.5.1-r1 (30 Jan 2012) + + 30 Jan 2012; Samuli Suominen <ssuominen@gentoo.org> + +acpitool-0.5.1-r1.ebuild, +files/acpitool-0.5.1-ac_adapter.patch, + +files/acpitool-0.5.1-battery.patch, +files/acpitool-0.5.1-kernel3.patch, + +files/acpitool-0.5.1-wakeup.patch: + Fix compability with Linux 3.x wrt #377355 by Damien Thébault. Fix reading + of values from ac_adapters and batteries. Rewrite part of the wakeup code. + This will also close #337565 (overflow revealed by _FORTIFY_SOURCE) by Diego + Elio Pettenò. (As it appears, the Debian maintainer fixed this "while at it" in their patchset)