From: Jim Weirich <jim@...>
Date: 2005-06-01T20:50:41+09:00
Subject: Re: library versioning [WAS] Re: [ANN] parseargs-0.0.0

On Tuesday 31 May 2005 11:16 pm, Ara.T.Howard wrote:
> i use the libtool/ld versioning system:
>
> � �interface.implementation.age
>
> the first two are pretty self explanatory, the age bit need examples to
> explain.

I hadn't seen age used like that before.  Interesting.

> i'd be curious to know the rational behind other ruby project's version
> numbers and what information can be gleaned from them.

The recommended RubyGems versioning policy is summarized at 
http://docs.rubygems.org/read/chapter/7.  The main purpose of the policy is 
to allow reasonable version comparisons for dependency declarations, 
especially the use of the "approximately greater than" version operator (see 
http://docs.rubygems.org/read/chapter/16#page76)

The libtool/ld policy would work gems as well, except that RubyGems wouldn't 
know the fine distinctions provided by the age field.

-- 
-- Jim Weirich    jim@weirichhouse.org     http://onestepback.org
-----------------------------------------------------------------
"Beware of bugs in the above code; I have only proved it correct, 
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)