[Pythonmac-SIG] First experiences with the python24-fat tree.

[Ronald Oussoren]

On 4-feb-2006, at 21:26, Ronald Oussoren wrote:

>
> On 4-feb-2006, at 21:02, Ronald Oussoren wrote:
>>
>> What I don't quite understand is that the latter patch doesn't  
>> quite work: the i386 contains weak links to fstatvfs and other  
>> 10.4-only symbols, but the ppc version does not. A small test  
>> program does work correctly.
>
> I hope nobody noticed this e-mail :-(. You have to set  
> MACOSX_DEPLOYMENT_TARGET=10.4 (or any value except 10.1) before  
> building, else gcc ignores weak linking instructions for ppc  
> builds. I've solved this more permantently by adding these lines to  
> Makefile.pre.in (just after settings CONFIGURE_MACOSX_DEPLOYMENT):
>
> #
> # Ensure that the deployment target doesn't change between  
> configure and
> # build time.
> MACOSX_DEPLOYMENT_TARGET=@CONFIGURE_MACOSX_DEPLOYMENT_TARGET@

Arghh, this doesn't help. Modules/posixmodule.o gets build with weak  
linking enabled, but the creation of $(BUILDPYTHON) ignores the  
MACOSX_DEPLOYMENT_TARGET setting in the Makefile and you must once  
again set it while running make.

It must be an off night for me, it's quite obvious why this doesn't  
work: make variables are not the same as environment variables.  GNU  
make has a feature to export variables to the environment, but the  
toplevel makefile should only contain portable code. Oh well, you win  
some an you loose some.

>
> This ensures that make and distutils will use the same setting of  
> MACOSX_DEPLOYMENT_TARGET. A better fix might be to drop  
> CONFIGURE_MACOSX_DEPLOYMENT_TARGET entirely, I'll do that later.

But not unless I find a way to use the value that configure  
calculated in the makefile.

Ronald

>
> Ronald_______________________________________________
> Pythonmac-SIG maillist  -  Pythonmac-SIG at python.org
> http://mail.python.org/mailman/listinfo/pythonmac-sig

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