No documentation is installed. The doc is in mirall-1.5.4/doc/*.rst and i guess manpages (and maybe other formats) are supposed to be generated.. .? For reference, the debian package does install those files, it may help find out how it's done. It seems they need to patch the cmakelists.txt otherwise it's not installed : http://anonscm.debian.org/gitweb/?p=pkg-owncloud/owncloud-client.git;a=blob;f=debian/patches/0002-create-manpage.patch
Thanks for the report! The behaviour as man pages (and documentation) require sphinx framework and full texlive suite (including texlive-latexextra), so these dependencies and doc install are handled by USE=doc I added a postinstallation note when doc USE flag is not enabled (to keep these dependencies optional), though I'm open to any ideas of course :)
Marking fixed with the postinstall note, don't hesitate to reopen if you have another suggestion!
