Comment 6 for bug 823185

I've applied this to master:

commit 3a693ef7d5a949796274f42c7c5e67b933d6ed8f
Author: Richard Hughes <email address hidden>
Date: Sat Aug 13 19:08:54 2011 +0200

    Add a configure argument --enable-volume-search

    This allows distros to disable the external-volume probing, which may be
    slightly more secure at the expense of some 'just-workingness'.

:100644 100644 933b7e7... 8fbfe55... M configure.ac
:100644 100644 460f08d... b3ec91f... M etc/Makefile.am
:100644 000000 6d60d29... 0000000... D etc/colord.conf
:000000 100644 0000000... 1864f8a... A etc/colord.conf.in

commit 7f3514b4e6057f678f50fe67455eecbdf6eb89d3
Author: Richard Hughes <email address hidden>
Date: Sat Aug 13 18:41:22 2011 +0200

    Add a configure argument of --enable-fd-fallback

    This defaults to true, and allows distros to disable opening of the user
    profiles from the daemon.

    This in theory is a little safer, and does not upset frameworks like SELinux.

    The downside is that testing is made much harder and all clients have to support
    FD-passing in DBus messages.

:100644 100644 257a03c... c4a7bf4... M Makefile.am
:100644 100644 fede541... 933b7e7... M configure.ac
:100644 100644 af4e86b... d747c25... M src/cd-profile.c