databases/ruby-gdbm: Gemify gdbm

since gdbm is gemified in upstream after Ruby 2.5 [1]. Ruby 2.4 can also
use the gdbm gem because it is a gem!

- Add MOVED entry
- Bump PORTEPOCH because PORTVERSION goes barwards
- Update pkg-descr and WWW
- Remove unnecessary pkg-message

[1] https://bugs.ruby-lang.org/issues/5481

Update lang/ruby* ports:

- Do not build gdbm together with Ruby interpreter, but build as a rubygem

Update `databases/gdbm' to version 1.18.1, an important bugfix release
which restores compatibility with old databases (version 1.8) and some
later versions which were built without mmap(2) support.  Due to shlib
version change, bump port revisions of the consumer ports.

PR:		233059
Exp-run by:	antoine
Approved by:	maintainer (johans, numerous timeouts)

Move if statement before target name

Avoids empty target when condition is false.

Reported by:	mat

databases/ruby-gdbm: Fix build with Ruby 2.4

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

- Add LICENSE
- Remove contiguous blank lines

Support stage
Allow packaging as a user

In preparation for making libtool generate libraries with a sane name, fix all
LIB_DEPENDS in databases

Add NO_STAGE all over the place in preparation for the staging support (cat:
databases)

- Switch to FETCH_DEPENDS to fix fetch during build

Send ports@ ruby ports over ruby@
most of these were from stas@

- Return my ports back to the pool.  I was unable to make any fixes to
  my ports in the past 3 weeks while ports were broken on any 10.x
  machines, which means I'm unable to maintain them.  So let people know
  that there's no available support for them until things are back to
  normal (which also means that anyone with spare time will be able
  to fix them without getting approval).

- Bump PORTREVISION for databases/gdbm update

Discussed with: stas

- Track dependencies after databases/gdbm update

- Add ruby 1.9 support
- Implement new knobs for gems and rake (these are included in
  ruby 1.9 distribution already). Also move gem bits from
  ruby-gems/Makefile.common to bsd.ruby.mk[1]. Now to depend
  on gems or rake you should define USE_RUBYGEMS/USE_RAKE
  accordingly. Also RAKE_BIN variable is provided for
  pointing to the right rake executable.
- Rewrite RUBY_SCHEBANG in awk to eliminate build dependency
  on ruby.

Discussed with: Jonathan Weiss <jw@innerewut.de> [1] (gems maintainer)
Tested by:      ports@

- Use a static PORTEPOCH for a while. We have a problem with the variable
  initialization order.

Reported by:    many
Thanks to:      pav

- Update ruby to 1.8.6
- Synchronise portversions and portepochs in all ruby subports
- Take maintainerships of all ruby subports.

- Bump PORTEPOCH for ruby ports that gets PORTVERSION from bsd.ruby.mk

Reported by:    chkversion script

With portmgr hat on, reset maintainership of knu's ports since he has
been inactive more than 6 months.  We hope to see him back sometime.

Use PLIST_FILES (bento-tested, marcus-reviewed).

De-pkg-comment.

Unbreak packaging for ruby 1.8.

chase gdbm lib version

cd dir && command -> cd dir; command

Update ruby to the 1.6.5 release.    

Bump the PORTREVISION's of the ports which install architecture   dependent ruby
modules, due to the RUBY_ARCH change I've just   committed.    

Alter the build process for the standard libraries of Ruby.    

Use RUBY_PORTVERSION, RUBY_DISTNAME and RUBY_WRKSRC.    

Fix MD5_FILE (files/md5 -> distinfo).    

Convert category databases to new layout.  

Update to Ruby 1.6.1.  Many bugs have been fixed since 1.6.0. :)    

Now bsd.ruby.mk is automatically included by bsd.port.mk when USE_RUBY   or
USE_LIBRUBY is defined, individual ruby ports no longer need to   include it
explicitly.    

Update to Ruby 1.6.0 official release.    

Do not set MASTER_SITE_SUBDIR to an empty value, but just undefine.    

Update to 1.6.0-preview3.    

Use MASTER_SITE_RUBY.    

Add ruby-gdbm, a Ruby extension to GDBM library.