From: Paul Duncan <pabs@...>
Date: 2005-12-20T07:03:52+09:00
Subject: Re: Ruby and Debian

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* Hal Fulton (hal9000@hypermetrics.com) wrote:
> I don't wish to open a can of worms here. I'm not even a Debian
> user, I'm just trying to help a friend.
>=20
> Please refrain if you can from digressing into discussions of politics,
> licenses, package management, rubygems replacements, or "my distro can
> beat up your distro."
>=20
> I met with a friend at breakfast this morning. Coffee shop with killer
> pastries and wi-fi, ahhhh.
>=20
> He's a Debian guy. Our purpose in meeting was to install Ruby and rubygems
> and one other library and then play with it a little. (He doesn't know
> Ruby yet.)
>=20
> He tried an apt-get before I got there. After fiddling a bit, I suggested
> installing from source -- rubygems was complaining about zlib.
>=20
> We installed from source, got no zlib, thus rubygems crashed. Tried an
> apt-get of zlib-ruby, but no joy. Version conflict or something.

If you're installing from source, you need zlib1g-dev (in Debianese,=20
"-dev" suffix =3D=3D header files).

> Gave up, moved to a different server, did everything the "right" way.
> Wasted over an hour. Never got ruby/zlib/rubygems all installed properly
> on either box.

Depending on the version of Debian (I'm using Sid, so the way things are
for me are how they'll be for you eventually), it _should_ be this
simple:

  # install ruby and ruby development packages
  sudo apt-get install ruby1.8{,-dev} libruby1.8

  # install gems from source
  gem_url=3D'http://rubyforge.org/frs/download.php/5207/rubygems-0.8.11.tgz'
  wget $gem_url && tar zxf rubygems-0.8.11.tar.gz && \
    cd rubygems-0.8.11 && sudo ruby setup.rb
   =20
If zlib wasn't listed as a dependency for libruby1.8 on the system in
question, it is now (in the more recent versions):

  pabs@halcyon:~> ach libruby1.8 | grep Dep.*zlib
  Depends: libc6 (>=3D 2.3.5-1), libncurses5 (>=3D 5.4-5), zlib1g (>=3D
  1:1.2.1)

> Moved to a Red Hat server where it all "just worked."
>=20
> What's the magic to get this going on Debian?

--=20
Paul Duncan <pabs@pablotron.org>        pabs in #ruby-lang (OPN IRC)
http://www.pablotron.org/               OpenPGP Key ID: 0x82C29562

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