From: Luis Lavena <luislavena@...>
Date: 2010-09-24T02:49:47+09:00
Subject: [ruby-core:32523] Re: [RubyInstaller] undefined reference to 'rb_encdb_declare'; ruby-1.9.2-preview3 64-bit on Windows

On Sun, Jun 27, 2010 at 5:03 PM, Chuck Remes <cremes.devlist@mac.com> wrote:
>
> Luis, thank you for the hint. None of the symbols were being exported into the dll.
>
> I am currently looking at the win32/mkexports.rb file. It is trying to open the libmsvcrt-ruby191-static.a file and read the symbols from it. When I run "strings" against that library it lists all of the rb_* names plus a few more.
>
> Working through the mkexports.rb file, the #objdump method doesn't output anything.
>
> �def each_export(objs)
> � �objdump(objs) do |l|
> � � �next if /@.*@/ =~ l
> � � �yield $2, !$1 if /\s(?:(T)|[[:upper:]])\s_((?!Init_|.*_threadptr_|DllMain@).*)$/ =~ l
> � �end
> �end
>
> I am printing out "l" in this case and see that it is a triplet of data separated by spaces.
>
> Example:
>
> 0000000000004860 T rb_ascii8bit_encindex\n
>
> That regex is not matching that data at all, so all of the lines are rejected and nothing gets exported.
>
> Luis, if you have that static library on your machine can you give me a sample of the input it is providing to this method? I can then work on crafting a new regex to filter out the unnecessary symbols.
>

Hello Chuck,

Trying to cross-compile trunk to x86_64 with latest changes from
wanabe and others, I was able to reproduce this encoding issue.

The following patch, based on trunk, solve the encoding compile issue:

http://pastie.org/1177278

Which is basically unify Mingw32 and Mingw64 (which was incorrect
architecture, but that is subject of another conversation).

See if this patch works for you and let me know

-- 
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