fix portability of 'clean' mode

git-svn-id: https://insight.labri.fr/svn/trunk@873 00316523-1ed1-4fdc-9313-76483a3f41dc
don't use @code{} in node name, it confuses some versions of Texinfo


git-svn-id: https://insight.labri.fr/svn/trunk@874 00316523-1ed1-4fdc-9313-76483a3f41dc
disable compilation

git-svn-id: https://insight.labri.fr/svn/trunk@875 00316523-1ed1-4fdc-9313-76483a3f41dc