From: Luis Lavena <luislavena@...>
Date: 2010-07-22T01:05:27+09:00
Subject: [ruby-core:31409] Re: --export-all revisited

On Wed, Jul 21, 2010 at 12:55 PM, Roger Pack <rogerdpack2@gmail.com> wrote:
>>> However this requires *all* authors who want their gems to compile on
>>> windows to add this rather ugly, non-intuitive block:
>>
>> Instead .def file should be used. �Isn't it created?
>
> I am unfamiliar with .def files.
>

definition files, contains the whitelist of functions to be exported from a DLL.

> C:\dev\PIG-2.3>gem install rjb
> Building native extensions. �This could take a while...
>
>>> require 'rjb'
> LoadError: 127: The specified procedure could not be found. � - Init_rjbcore
> c:/ruby19/lib/ruby/gems/1.9.1/gems/rjb-1.2.5/lib/rjbcore.so
> � � � �from c:/ruby19/lib/ruby/site_ruby/1.9.1/faster_rubygems/prelude_cached_load.rb:6:in
> `require'
>
> (Init_rjbcore was not exported...).
> It occurs with some gems and not with others.
>

Please provide a simple example, a simple extension, and include the
specific ruby version (ruby -v) so we can reproduce.

My testing with different version:

http://gist.github.com/484676

C:\Users\Luis\Projects\_sandbox\ext-test>ruby -I. -ve "require 'testing'"
ruby 1.8.7 (2010-06-23 patchlevel 299) [i386-mingw32]
testing loaded

C:\Users\Luis\Projects\_sandbox\ext-test>ruby -I. -ve "require 'testing'"
ruby 1.9.1p429 (2010-07-02 revision 28523) [i386-mingw32]
testing loaded

There is no def file... exported symbols are correct.

C:\Users\Luis\Projects\_sandbox\ext-test>ruby -I. -ve "require 'testing'"
ruby 1.9.2dev (2010-07-02) [i386-mingw32]
testing loaded

C:\Users\Luis\Projects\_sandbox\ext-test>cat testing-i386-mingw32.def
EXPORTS
Init_testing

Seems that simple scenarios work, but not all the time.

-- 
Luis Lavena
AREA 17
-
Perfection in design is achieved not when there is nothing more to add,
but rather when there is nothing more to take away.
Antoine de Saint-Exup�ry