* Makefile.am (tarball): Depend on book1.html, not overview.html.
Don't echo needless messages. Portably copy the source tree to
dejagnu-${VERSION}. Portably copy documentation files from the
source tree to the distribution directory. Don't copy RPM-related
files -- leave that to the rpm target.
(snapshot): Remove target.
(overview.html): Rename target from this ..
(book1.htm): .. to this.
(rpm): Portably copy tar file to SOURCES directory.
(deb): Depend on book1.html, not overview.html.
(dist-hook): Depend on book1.html, not overview.html.
* Makefile.in: Rebuild.
* doc/Makefile.am (TARGETS): Depend on book1.html.
(book1.html): Depend on html/book1.html.
(overview.dvi): Remove target.
* doc/Makefile.in: Rebuild.