[Help-source-highlight] build probs when maintainer mode is disabled?

[Gary Funck]

Configuration:
    OS: Fedora FC4
    source-highlight: latest git

After a default configure && make, the build failed because
various 'doc' targets that the Makefile needed were not being built.
They appeared to only be built if --enable-maintainer-mode is
enabled (this mode is disabled by default).

If it is verified that builds fail when maintainer mode
is disabled, one fix might be to remove the maintainer
mode support entirely.  Per,
http://www.gnu.org/software/hello/manual/automake/maintainer_002dmode.html
using maintainer mode is not a recommended practice.