error-on-warning default

[Mike Alexander]

--On April 28, 2014 8:58:36 AM -0400 Geert Janssens 
<gjanssens at code.gnucash.org> wrote:

> commit 06e7199bda8a901891f821f8479da24be20ed6d7
> Author: Gary Bilkus <mail at gary.bilkus.com>
> Date:   Fri Jan 17 13:23:02 2014 +0000
>
>     Win32: Fix configure.ac to cope with new gcc not understanding
> no-undefined flag
>

I think you also changed the default for error-on-warning from "yes" to 
"no" for SCM builds.  Was this intentional?  Unless it's very difficult 
to get rid of the warnings, I think leaving this on by default for SCM 
builds is a good idea.

         Mike