From: Aaron Gage <ratcrow@...>
Date: 2009-05-06T00:19:45+09:00
Subject: Re: Cross-compiling 1.9.1-p0 to bfin-uclinux

Brian Candler wrote:
> ruby 1.9 is *much* bigger than ruby 1.8, so for embedded applications, 
> I'd stick with 1.8 (pref 1.8.6) unless you really need 1.9 features.
> 
> openwrt has a working ruby 1.8.6 port. I don't know what the status is 
> of openwrt with blackfin, but a google search suggests maybe someone is 
> working on it:
> https://dev.openwrt.org/changeset/7306/trunk/tools/mkimage

Thanks for the info about 1.9.  I have gone back and tried to build a 
couple of 1.8.6 versions, but I still seem to be getting stuck.  I am 
consistently getting this error:

[blackfin@localhost ruby-1.8.6-p368]$ make
rbconfig.rb unchanged
./lib/fileutils.rb:1029:in `utime': can't convert NilClass into time 
(TypeError)
        from ./lib/fileutils.rb:1029:in `touch'
        from ./lib/fileutils.rb:1026:in `each'
        from ./lib/fileutils.rb:1026:in `touch'
        from ./mkconfig.rb:188
make: *** [.rbconfig.time] Error 1

I checked out p287 (after reading 
http://groups.google.com/group/ruby-talk-google/browse_thread/thread/26dadccab34f57bf?fwc=2) 
and it reports the same error.

Since this build machine is CentOS 5.3, I have an older version of ruby 
(1.8.5) installed.  However, I can build 1.8.6-p287 (from Subversion), 
1.8.6-p368, and 1.9.1-p0 on this machine natively without any difficulty 
(./configure && make && make test).  This tells me that the above error 
(File.utime returning nil) is not necessarily due to the system's ruby 
version being out of date (even though it is a ruby script that fails).

I will keep plugging away at it.  The link to the OpenWRT project 
doesn't give me any ideas about this particular error, but I'll see if I 
can figure out what file mkconfig.rb is failing to find.
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