sys-auth/thinkfinger
Support for the UPEK/SGS Thomson fingerprint reader, common in Thinkpads
USE Flags
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
pam
Global: Adds support for PAM (Pluggable Authentication Modules) - DANGEROUS to arbitrarily flip