[gecode-users] compiling for 32bits on snow leopard

[Guido Tack]

Hi Denys,

Denys Duchier wrote:
> A colleague of mine has been having quite a bit of difficulty trying  
> to
> install Gecode on her brand new Mac.  When compiling from sources for
> 32bits: I added -m32 to CFLAGS and CXXFLAGS, but it turns out that's  
> not
> sufficient.  I had to tweak the Makefile and add -m32 also to  
> DLLFLAGS.
>
> Maybe there's a better way, but I thought I'd pass on the info.   
> Perhaps
> you can tweak configure to make this easier.  Me, I don't know macs  
> from
> a hole in the ground, so I won't try.

I don't think m32 or m64 should be necessary on Mac OS.  Did she use  
the configure option -with-architectures=i386 in order to select 32- 
bit mode?  That's the recommended way, and in my experience that's all  
that is needed.  You can give any architecture there, e.g. for the  
binary packages I use -with-architectures=i386,x86_64,ppc in order to  
get a "universal binary".

Cheers,
	Guido