From: Francis Cianfrocca <garbagecat10@...>
Date: 2007-06-25T20:04:25+09:00
Subject: Re: Name clash in C extension

------=_Part_23126_30958079.1182769465966
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

On 6/25/07, Alex Gutteridge <alexg@kuicr.kyoto-u.ac.jp> wrote:
>
> Hi,
>
> I'm trying to write an extension interfacing with the C iGraph
> library (http://cneurocvs.rmki.kfki.hu/igraph/). Unfortunately the
> iGraph header files define a macro called TYPE which clashes with the
> TYPE macro defined in ruby.h. Both headers are obviously required to
> compile my extension.



What happens if you define a wrapper for the calls you make to the IGraph
liibrary? That way you include only the wrapper's header in the extension's
main source file (the one that includes ruby.h and defines Init_xxx). You'll
have to massage all data items between Ruby-land and C in the wrapper as
well. I took this approach in the EventMachine library (where it has an
additional benefit because the wrapper is in C, but the extension code is
all in C++, so the wrapper approach avoids exposing decorated symbols in the
compiled extension).

------=_Part_23126_30958079.1182769465966--