Please try the latest Sage prerelease (6.9.rc0, available here: 
http://files.sagemath.org/devel/index.html) should build with Xcode 7, so I 
hope it builds with OS X 10.11.

  John


On Friday, September 18, 2015 at 8:14:44 AM UTC-7, John H Palmieri wrote:
>
>
>
> On Friday, September 18, 2015 at 2:01:24 AM UTC-7, Juan Luis Varona wrote:
>>
>> Actually, xcode 7 were released yesterday. 
>>
>> I can confirm that again sage 6.8 cannot be compiled in mac os x 10.11 
>> with xcode 7. 
>>
>> Juan Luis 
>>
>
> We are tracking build issues with Xcode 7 here: 
> http://trac.sagemath.org/ticket/19232. I hope fixing those will fix the 
> problems on OS X 10.11.
>
>   John
>
>
>> > 
>> > Same problem, nobody find a solution ? If yes, please can you tell me 
>> how ! 
>> > 
>> > Charles 
>> > 
>> > Le vendredi 11 septembre 2015 04:48:25 UTC+2, François a écrit : 
>> > Hum, that symbol is in libpython2.7.dylib, operator.so is not linked to 
>> that library. 
>> > I am guessing it is supposed to be dlopen-ed from python which would 
>> supply 
>> > the symbol. I suspect python will need patching. 
>> > Can you start python from a sage shell? 
>> > 
>> > François 
>> > 
>> > > On 11/09/2015, at 14:40, Juan Luis Varona <juanlui...@gmail.com> 
>> wrote: 
>> > > 
>> > > 
>> > >> El 11 sept 2015, a las 4:24, kcrisman <kcri...@gmail.com> escribió: 
>> > >> 
>> > >> But, usually, new versions of osx can execute already compiled 
>> versions of sage, and this does not happen this time. (I like to have 
>> always the last version of osx in one of my computers, and I do not 
>> remember this problem in the past.) 
>> > >> 
>> > >> 
>> > >> Yes, good point.  Can you give us exactly what kind of problems you 
>> encounter with the 10.10 version on 10.11?  (If there are any message at 
>> all.) 
>> > >> 
>> > > 
>> > > This is what appears in the Terminal using Sage-6.8.app (compiled for 
>> osx 10.10) under osx 10.11: 
>> > > 
>> > > --------- 
>> > > 
>> > > Last login: Thu Sep 10 18:37:14 on ttys000 
>> > > AirTeXano:~ jvarona$ 
>> '/Applications/Sage-6.8.app/Contents/Resources/sage'/sage --notebook 
>> > > Traceback (most recent call last): 
>> > >  File 
>> "/Applications/Sage-6.8.app/Contents/Resources/sage/src/bin/sage-notebook", 
>> line 7, in <module> 
>> > >    import argparse 
>> > >  File 
>> "/Applications/Sage-6.8.app/Contents/Resources/sage/local/lib/python/argparse.py",
>>  
>> line 85, in <module> 
>> > >    import collections as _collections 
>> > >  File 
>> "/Applications/Sage-6.8.app/Contents/Resources/sage/local/lib/python/collections.py",
>>  
>> line 9, in <module> 
>> > >    from operator import itemgetter as _itemgetter, eq as _eq 
>> > > ImportError: 
>> dlopen(/Applications/Sage-6.8.app/Contents/Resources/sage/local/lib/python2.7/lib-dynload/operator.so,
>>  
>> 2): Symbol not found: __PyUnicodeUCS4_AsDefaultEncodedString 
>> > >  Referenced from: 
>> /Applications/Sage-6.8.app/Contents/Resources/sage/local/lib/python2.7/lib-dynload/operator.so
>>  
>>
>> > >  Expected in: flat namespace 
>> > > in 
>> /Applications/Sage-6.8.app/Contents/Resources/sage/local/lib/python2.7/lib-dynload/operator.so
>>  
>>
>> > > AirTeXano:~ jvarona$ 
>> > > 
>> > > ———— 
>> > > 
>> > > Juan Luis 
>> > > 
>> > > 
>> > > -- 
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