From: Sam Roberts <sroberts@...>
Date: 2004-06-11T02:45:17+09:00
Subject: Re: #include <re.h> required for Opteron but not Pentium.

Quoteing jim@freeze.org, on Fri, Jun 11, 2004 at 02:20:12AM +0900:
> > What compiler are you using? Are you sure you have the warning levels
> > cranked high? Default build options on many compilers won't tell you
> > about this kind of stuff.
> > 
> 
> gcc
> 
> The warnings are whatever is generated by mkmf/create_makefile by default.

There's a chance that they do not include -Wall. I'd suggest always
using this flag, at least during development.

Sam