RUBY_SITERIDIR.
It fixes install error of textproc/ruby-redcloth when ruby18-base didn't
biild with ruby-build-ri-db option.
Noted by obache@ via private mail and approved by wiz@.
Bump PKGREVISION.
- Include options.mk before rubyversion.mk, so PLIST for ri database
should be created suitably.
- make RUBY_RIDIR and its friends relative path to ${PREFIX}.
- Fix and improve handling of ${RUBY_RIDIR} handling and should
be fixed remaining ${RUBY_RIDIR} after pkg_delete ruby18-base.
(Noted by private mail from wiz@.)
Bump PKGREVISION of ruby18-base package.
(see CHANGES.pkgsrc file).
- Merge databases/ruby-dbm, devel/ruby-zlib, security/ruby-digest and
ruby-openssl, conflicting with these packages.
- Better handling for RI directories.
- Use pkgsrc's TOOLS framework.
