>>> Unpacking source...
>>> Unpacking proxychains-2.1.tar.gz to /var/tmp/portage/proxychains-2.1-r2/work
 * Applying proxychains-2.1-libc-connect.patch ...                        [ ok ]
 * Applying proxychains-2.1-autotools.patch ...                           [ ok ]
FATAL ERROR: Autoconf version 2.50 or higher is required for this script
FATAL ERROR: Autoconf version 2.50 or higher is required for this script

!!! ERROR: net-misc/proxychains-2.1-r2 failed.
!!! Function src_unpack, Line 33, Exitcode 2
!!! autotools failed