Re: [Swarm-Support] Swarm on Leopard

[Bill Northcott]

Almost everything except Carbon seems to be 4 way fat (ppc, ppc64,  
i386, x86_64).  You also get all four architectures installed on PPC  
Macs.  This did not happen on Tiger.  This includes X11 and libffi.  I  
will try to build a three way fat Swarm binary - ppc, 1386, x86_64.   
This would be very much simpler if we were using Apple's runtime:- 
(  This will automagically run in 64 bit on Core 2 Duo and other 64  
bit Intel cpus, which seems to have a speed benefit c. 8%.  ppc64  
seems to be slower.  So I will leave that out.  I reason that anyone  
who wants to run rooly big models will have bought a Mac Pro some time  
ago.

There seem to be some issues with the X11 file layout which fools some  
config scripts.  The current Swarm config fails to find libXpm.  It is  
not yet clear to me why this is.  On the plus side, X11 autolaunches  
when you start an X11 app.  No more "Tk instance" errors!.

They have also made big changes to the default temporary file  
locations.  There seems to be a per user per login temp directory,  
whose location is given by TMPDIR which the system sets up.  The  
compilers create directories into which they put intermediate files.   
This causes configure scripts to spit hundreds of warnings about  
trying to delete directories in the 'rm conftest*'.  I understand this  
is fixed in the autoconf cvs.

The whole system seems much better threaded than Tiger or Win XP and  
really loads up multiple core CPUs.  It sort of needs to be with the  
Mac Pros now being 8 core.

Bill

On 10/04/2008, at 11:25 PM, Marcus G. Daniels wrote:

> Bill Northcott wrote:
> > I will make the install conditional on MacOS.
> >
> > I also plan to reinstate the -fnested-functions flag conditional on  
> > using an Apple compiler.
> Sounds good..   Oh, does Leopard have working 64 bit X11 client  
> libraries?
> I built that monster from source on Tiger, and had a working 64 bit  
> heatbugs.   Not a fun time, but comforting to know one can have  
> billion of those critters  :-)
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