On Monday, September 21, 2020 at 10:32:05 PM UTC-7, John H Palmieri wrote:
>
> For openblas and readline, I suggest using homebrew's versions of those 
> packages. For symmetrica, there is an upgrade at 
> https://trac.sagemath.org/ticket/29061 which seems to fix the problem. 
> For scipy (which you probably haven't reached in your build and which will 
> probably fail when you do), there is a fix at 
> https://trac.sagemath.org/ticket/30604.
>
> If you don't use homebrew, there is a proposed fix for readline at 
> https://trac.sagemath.org/ticket/30603, although it hasn't been tested 
> very much. There are no fixes yet for openblas.
>

Actually, after running configure, you should have seen a message saying

hint: installing the following system packages is recommended and may avoid 
building some of the above SPKGs from source:
$ brew install bdw-gc gcc gsl libatomic_ops openblas openssl r readline 
suite-sparse



You should follow those directions: it will speed up the Sage build 
(especially building gcc, which can take quite a while), as well as 
avoiding some of these Xcode 12 problems.




On Monday, September 21, 2020 at 5:35:43 PM UTC-7, Kenji Iohara wrote:
>
> I have compiled it completely (not an update) on Mac OS 10.15.6 with XCode 
> 12 and execute make -k, it failed for 3 packages:
>
> openblas-0.3.9
> readline-6.3.008.p0
> symmetrica-2.0.p11
>
> . 
>

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