zero@ozzie powertop % sudo ACCEPT_KEYWORDS="~amd64" emerge hidclient -1 --jobs=1

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild   R    ] net-wireless/hidclient-20120728::maintainer-zero  0 kB

Total: 1 package (1 reinstall), Size of downloads: 0 kB


>>> Verifying ebuild manifests

>>> Emerging (1 of 1) net-wireless/hidclient-20120728 from maintainer-zero
 * hidclient-20120728.tar.bz2 SHA256 SHA512 WHIRLPOOL size ;-) ...                                                                                                                            [ ok ]
>>> Unpacking source...
>>> Unpacking hidclient-20120728.tar.bz2 to /var/tmp/portage/net-wireless/hidclient-20120728/work
>>> Source unpacked in /var/tmp/portage/net-wireless/hidclient-20120728/work
>>> Preparing source in /var/tmp/portage/net-wireless/hidclient-20120728/work ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/net-wireless/hidclient-20120728/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/net-wireless/hidclient-20120728/work ...
make -j4 -l4 hidclient 
cc -o hidclient hidclient.c -Os -pipe -march=native -frecord-gcc-switches -ggdb -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -lbluetooth -Wall
>>> Source compiled.
>>> Test phase [not enabled]: net-wireless/hidclient-20120728

>>> Install hidclient-20120728 into /var/tmp/portage/net-wireless/hidclient-20120728/image/ category net-wireless
>>> Completed installing hidclient-20120728 into /var/tmp/portage/net-wireless/hidclient-20120728/image/

strip: x86_64-pc-linux-gnu-strip --strip-unneeded -R .comment -R .GCC.command.line -R .note.gnu.gold-version
   usr/sbin/hidclient
ecompressdir: bzip2 -9 /usr/share/doc
./
./usr/
./usr/lib/
./usr/lib/debug/
./usr/lib/debug/usr/
./usr/lib/debug/usr/sbin/
./usr/lib/debug/usr/sbin/hidclient.debug
./usr/sbin/
./usr/sbin/hidclient
./usr/share/
./usr/share/doc/
./usr/share/doc/hidclient-20120728/
./usr/share/doc/hidclient-20120728/README.bz2
>>> Done.

>>> Installing (1 of 1) net-wireless/hidclient-20120728
 * checking 3 files for package collisions
>>> Merging net-wireless/hidclient-20120728 to /
--- /usr/
--- /usr/share/
--- /usr/share/doc/
--- /usr/share/doc/hidclient-20120728/
>>> /usr/share/doc/hidclient-20120728/README.bz2
--- /usr/sbin/
>>> /usr/sbin/hidclient
--- /usr/lib/
--- /usr/lib/debug/
--- /usr/lib/debug/usr/
--- /usr/lib/debug/usr/sbin/
>>> /usr/lib/debug/usr/sbin/hidclient.debug
>>> Safely unmerging already-installed instance...
No package files given... Grabbing a set.
--- replaced obj /usr/share/doc/hidclient-20120728/README.bz2
--- replaced dir /usr/share/doc/hidclient-20120728
--- replaced dir /usr/share/doc
--- replaced dir /usr/share
--- replaced obj /usr/sbin/hidclient
--- replaced dir /usr/sbin
--- replaced obj /usr/lib/debug/usr/sbin/hidclient.debug
--- replaced dir /usr/lib/debug/usr/sbin
--- replaced dir /usr/lib/debug/usr
--- replaced dir /usr/lib/debug
--- cfgpro   dir /usr/lib
--- replaced dir /usr
>>> Regenerating /etc/ld.so.cache...
>>> Original instance of package unmerged safely.
>>> net-wireless/hidclient-20120728 merged.
>>> Auto-cleaning packages...

>>> No outdated packages were found on your system.

 * GNU info directory index is up-to-date.