* Don't bother patching the configure output.
* Don't patch configure.ac (which triggers an automake run that clobbers
the effects of USE_GNOME=gnomehack).
* Don't install the documentation a second time in post-install.
gnomehack now correctly takes care of pkgconfig, and htmldocdir is
overridden from MAKE_ARGS.
Reported by: Mamoru Iwaki <firstname.lastname@example.org>