Re: [Pyobjc-dev] compilation issues on Py3.5, os x 10.10.5

[Ronald O. <ron...@ma...>]

> On 30 Jul 2016, at 09:44, Ronald Oussoren <ron...@ma...> wrote:
> 
>> 
>> On 28 Jul 2016, at 15:43, Diez B. Roggisch <de...@we... <mailto:de...@we...>> wrote:
>> 
>> Hi,
>> 
>> I get the problem quoted below after trying to install pyobjc on my 10.10.5 System, Xcode version 7.2 into a vanilla Python3.5
>> 
>> Googling resulted in http://stackoverflow.com/questions/37525929/python-pyobjc-idtopythonprotocolnsurlsessionstreamdelegate-error <http://stackoverflow.com/questions/37525929/python-pyobjc-idtopythonprotocolnsurlsessionstreamdelegate-error>, which again on a vanilla Python 3.5 succeeds installing, but gives the second error below.
>> 
>> Any suggestions are welcome.
> 
> For some reason PyObjC thinks it is building with the OSX 10.10 SDK, while it is building with an older SDK. Because of this it tries to reference a symbol that isn’t present in the SDK that is used.   The “-isysroot /“ flag in the output below explains the behavior, setup.py cannot deduce the SDK used from the sysroot parameter and therefore assumes the SDK version matches the OSX version.

I just noticed some old code in the setup.py files for PyObjC that could cause this error. I’ll be testing on older OSX releases once I finish my work on 10.12 support and will try to remove or fix that old code when I do so.

Could you check if you have a file named “/usr/include/stdio.h” on your system? If so, please try building without this file (basically: move or rename it, then build PyObjC, then restore the file). 

Ronald