see #26713
tldr;

open 
/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

On Fri, Dec 14, 2018 at 11:56 PM John H Palmieri <jhpalmier...@gmail.com> wrote:
>
> Fails to build from scratch on some OS X Mojave machines. I think the issue 
> is that on the affected machine, there is no directory /usr/include. What 
> happens is that due to a configure check (from #26286), zlib is not built, 
> but then Python cannot find zlib and so builds without zlib support. Without 
> zlib support, pip won't build. Previous versions of Sage, at least as of 
> 8.5.beta4, build on this machine, so I think #26286 is the issue. (It's 
> perhaps a rare case, so no blame to the authors and reviewers there.)
>
> I've opened up https://trac.sagemath.org/ticket/26899 for this.
>
>   John
>
>
>
> On Monday, December 10, 2018 at 5:34:30 AM UTC-8, Volker Braun wrote:
>>
>> As always, you can get the latest beta version from the "develop" git 
>> branch. Alternatively, the self-contained source tarball is at 
>> http://www.sagemath.org/download-latest.html
>>
>> ad38820571 (tag: 8.5.rc0, trac/develop) Updated SageMath version to 8.5.rc0
>> c11e5621cd Trac #26850: Small fix for unicode_art of IndexedFreeModuleElement
>> 9b66525de2 Trac #26845: py3: tiny fix for Lie algebras
>> ccf60f743e Trac #26842: Index error in FreeAbelianMonoid constructor
>> ad3ad8869c Trac #26838: some fixes for SymmetricGroup as Coxeter group
>> 4b5470a0be Trac #26837: py3: Fix combinat.designs module for python3 (final)
>> 909f29df61 Trac #26836: some enhancements to cluster quiver interact
>> d8b51a0c5d Trac #26833: avoid using .vertices() in vertex_separation.pyx
>> f38d38e35e Trac #26830: avoid .vertices() and .edges() in graph_products.pyx
>> ab9a5f673c Trac #26826: improve method _path_length
>> 9545967031 Trac #26824: pep8 in wiener_index and average_distance
>> 57a7f584a7 Trac #26813: improve cluster_triangles
>> 6f10a9d4dc Trac #26804: more lazy imports in combinat.all
>> 4765156ae6 Trac #26799: py3: some care for abelian groups
>> 356623e6ad Trac #26798: remove deprecated stuff in sage_object
>> 7cef452345 Trac #26779: py3: fix graph_input.py and hypergraph_generators.py
>> 6658fb5268 Trac #26675: clean generic_graph.py (part 11) - substructures
>> 20a9ec025f Trac #26634: clean generic_graph.py (part 5)
>> a6a3b410f1 Trac #26808: fix bug in RandomChordalGraph
>> beab5eab28 Trac #26782: boost 1.66 does not compile
>> f42b040b25 Trac #26812: py3: fix doctest in graph_generators.py
>> 8bf20825c9 Trac #26806: Memory leak _is_relaxation()
>> 3c5ea6b1b2 Trac #26803: Error message in szeged_index()
>> 4620b11bd9 Trac #26801: py3: change sorting of neighbors labels in 
>> static_sparse_graph.pyx
>> 990a82ec4a Trac #26795: Some memory leaks
>> a1c955faba Trac #26756: py3: some care for integer.pyx
>> 9776a83faf Trac #26725: Upgrade to PARI-2.11.1
>> b0e09fd547 Trac #26680: clean generic_graph.py (part 14) - visualization
>> 18e5d9b979 Trac #26663: clean generic_graph.py (part 8) - connectivity
>> 168e9236c6 Trac #26619: py3: one fix in bdd_height.py
>> 06a51a5a18 Trac #26546: matrix_gfpn_dense: refactor field_to_int()
>> 5205bbcc09 Trac #26360: Upgrade arb to 2.15.1
>> 7d625bebc0 Trac #26286: more system package checks
>> 35bf869f3b Trac #26796: memory leaks in IndependentSets
>> df4aab6c50 Trac #26776: MonoDict/TripleDict: optimize use of KeyedRef
>> a1426983a2 Trac #26657: Adapt unitary burau matrix to Sage convention
>> d45ef02048 Updated SageMath version to 8.5.beta6
>>
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