[PD] Re: [PD-announce] Pd compiled for imac

Hans-Christoph Steiner hans at eds.org
Sun May 28 00:34:57 CEST 2006

On May 28, 2006, at 12:22 AM, Miller Puckette wrote:

> Yep... I thought 'imac' meant 'intel-mac' but I guess it doesn't.
> Anyway, I think that if someone wants to publish an extern that works
> on either mips or i86 macs, they would have to include both  
> "dylib"s...
> unless there's a way to make a fat dylib with binaries for both  
> architectures.

Apple provides two mechanisms for this, one is fat binaries, which  
have been supported since NeXTSTEP 3.2 (Mac OS X 10.4 == NeXTSTEP  
6.4), and the other is Rosetta, which runs PPC code in emulation.   
NeXTSTEP/Apple uses gcc for everything, so building fat binaries is  
just a matter of figuring out the gcc options.

> Even so, it's easier to figure out what's what if the name reflects  
> the
> architecture so you know what targets the extern is compiled for.
> So perhaps on intel macs, it should just be "pd_macintel" (more  
> mellifluous
> than "pd_intelmac"?)

The .pd_linux extension has been working fine for 10+ architectures,  
I don't see why Mac OS X needs more than one.  If people want to  
distribute binaries for the different architectures, I think it will  
be easier to just put the files in properly labeled directories (ie.  
x86/object.pd_darwin  ppc/object.pd_darwin).

Having more file extensions will mean I will have to modify the Pd- 
extended build system quite a bit to make it work for that new  
extension.  This will take a lot of time, and probably introduce some  
bugs, and I can't see any benefit.


> cheers
> Miller
> On Sun, May 28, 2006 at 12:05:12AM +0200, Hans-Christoph Steiner  
> wrote:
>> I am guessing that you mean x86 Mac OS X when you say iMac.  If so,
>> then actually, all of Apple's new computers will be x86 based, not
>> just the iMac.  I personally don't see any benefit to having
>> different file extensions for different platforms.  .so and .a are
>> cross-platform and cross-architecture, for example.  .dll and .dylib
>> are OS-specific, but not architecture specific.
>> I think something like .pdclass for all platforms would work best.
>> Or maybe just use platform-native for each platform, like Thomas
>> suggested:
>> http://lists.puredata.info/pipermail/pd-dev/2006-01/005720.html
>> .hc
>> On May 27, 2006, at 6:53 PM, Miller Puckette wrote:
>>> I've got an experimental version of Pd compiled for imac  
>>> available on
>>> http://crca.ucsd.edu/~msp/software.html ... unfortunately, since it
>>> seemed advisable to update portaudio to the new, completely
>>> rewritten one,
>>> it would be unwise to retrofit this to Pd 0.39 (might change  
>>> latencies
>>> or other things for pre-existing platforms).
>>> I made up a new file extension for externs (pd_imac) ... we could
>>> always
>>> go to a "sensible" naming convention in the future and stay back
>>> compatible,
>>> if people think it's too ad hoc.  In the long term, the set of
>>> architectures/
>>> OSes seems set to stay at around hald a dozen active ones, so
>>> there's no
>>> big problem just making up names unsystematically.
>>> The only other policy implication is this: I'm using files from the
>>> supplied "Wish shell.app" on Imac, which seems a reasonable thing to
>>> do, but strictly speaking it's probably more correct to download a
>>> bsd-licensed wish shell or recompile it from source.  That shouldn't
>>> be too difficult to do, I hope.
>>> cheers
>>> Miller
>>> _______________________________________________
>>> PD-announce mailing list
>>> PD-announce at iem.at
>>> http://lists.puredata.info/listinfo/pd-announce
>> _____________________________________________________________________ 
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                                            - Dr. Martin Luther King,  

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