From: Gabor Csardi <csardi@...>
Date: 2007-07-03T23:08:01+09:00
Subject: Re: Name clash in C extension

Alex, i'm an igraph developer, and there is an easy solution for this i 
think,
all you need is to append

#ifdef TYPE
#undef TYPE
#endif

#ifdef FUNCTION
#undef FUNCTION
#endif

to the file igraph_pmt_off.h. (This was an igraph bug, not having these 
there.) Please feel free to contact me if you need any help.

Best,
Gabor

Alex Gutteridge 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 is the best practice for dealing with name clashes like this? My
> current solution is to do a search and replace in the iGraph source
> changing TYPE to IGRAPH_TYPE and recompile the library. That works
> for now, but implies anyone else wanting to build my extension will
> have to manually hack iGraph themselves which seems a bit off. Am I
> missing some obvious solution other than emailing iGraph/Ruby core
> and asking for them to play a bit nicer with their names?
> 
> Alex Gutteridge
> 
> Bioinformatics Center
> Kyoto University


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