[PD] osx universal binaries for externals ?

[Hans-Christoph Steiner]

You can skip the lipo step, gcc will do it for you if you provide the  
right flags.  You can also include 64-bit in there.  If you want to  
do specific optimizations for each CPU, then you'll have to build  
each separately and use lipo to assemble them all into one.

CFLAGS="-arch i386 -arch ppc -arch x86_64 -arch ppc64"
LDFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch  
ppc -arch x86_64 -arch ppc64"

Pd-extended is not universal (yet?).  I think it should be, it's just  
a matter of someone doing the work.

.hc

On Nov 25, 2007, at 5:49 PM, Alexandre Quessy wrote:

> Thanks Thomas !
> Is this what is done in pd-extended ? I guess not.
>
> a
>
>
> 2007/11/25, Thomas Grill <gr at grrrr.org>:
>> Hi,
>>> On OSX, how can we build universal binaries for externals ?
>>> If not possible, both ppc and intel architecture use  
>>> the .pd_darwin suffix...
>>>
>> the easiest approach is to make separate externals for each  
>> architecture
>> (like ppc, ppc64, i386) and glue them together with lipo.
>>
>> lipo -create myext.i386.pd_darwin myext.ppc.pd_darwin -output
>> myext.pd_darwin
>>
>> The flext build system uses a slightly different approach by  
>> compiling
>> architecture-specific object files (because the compiler flags may be
>> architecture-specific), use lipo to make UB object files and then  
>> call
>> the linker with something like
>> g++ -dynamic -arch i386 -arch ppc -isysroot
>> /Developer/SDKs/MacOSX10.4u.sdk -o myext.pd_darwin  objectfiles....
>>
>>
>> greetings, Thomas
>>
>>
>
>
> -- 
> Alexandre Quessy
> http://alexandre.quessy.net
> http://www.puredata.info/Members/aalex
>
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