Install rdoc documentation if it has been generated.
treeb090da0b41bc29e76d3c2db5de316741cbeb1da7
lrwxrwxrwx 11 COPYING -> doc/COPYING
lrwxrwxrwx 11 LICENSE -> doc/LICENSE
-rw-r--r-- 602 Makefile
lrwxrwxrwx 10 README -> doc/README
-rwxr-xr-x 1651 configure
drwxr-xr-x - doc
drwxr-xr-x - lib
drwxr-xr-x - src
drwxr-xr-x - test