From: Aaron Gage <ratcrow@...>
Date: 2009-05-06T00:59:46+09:00
Subject: Re: Cross-compiling 1.9.1-p0 to bfin-uclinux

Well, I've gotten it to build.  I have not yet tested this on the target 
processor yet, but first things first.

The steps I had to follow are:

1) Get a copy of ruby-1.8.6-p368 and extract it if necessary

2) cd into the ruby-1.8.6-p368 directory and copy the attached patch 
into it

3) Apply the attached patch by doing this:
     patch -p0 < ruby-1.8.6-p368-bfin-uclinux.patch

4) configure as follows:

   ac_cv_func_getpgrp_void=no  \
   ac_cv_func_setpgrp_void=yes \
   ./configure --host=bfin-uclinux

5) make (assuming that bfin-uclinux-gcc is in the PATH and the libraries 
are installed properly)

The resulting executable is about 2.3MB which isn't too bad.  I still 
need to try to convert it to the BFLT format, but I can work on that 
next.

As for the patch, I had to remove three lines from mkconfig.rb 
($timestamp was undefined), copy in the config.sub from the 1.9.1-p0 
distribution, and set all of the extensions to build statically.

Hopefully this will be of use to someone else.

Attachments:
http://www.ruby-forum.com/attachment/3656/ruby-1.8.6-p368-bfin-uclinux.patch

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