[MacPorts] #64113: xxhashlib @0.8.1_0: build failure: static_assert undefined

[MacPorts]

#64113: xxhashlib @0.8.1_0: build failure: static_assert undefined
------------------------+-------------------------
  Reporter:  macdeport  |      Owner:  Schamschula
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.1
Resolution:             |   Keywords:  yosemite
      Port:  xxhashlib  |
------------------------+-------------------------

Comment (by ryandesign):

 Well the first search result I found claimed it was a C++11 thing, but
 according to [https://docs.microsoft.com/en-us/cpp/c-language/static-
 assert-c?view=msvc-170 Microsoft documentation] it's a C11 thing. That
 makes more sense since I don't see any C++ compiler being used in the
 build.

 The build does succeed on Lion, Mountain Lion, Mavericks, using Xcode
 clang, so that gives me hope this can be solved on Yosemite too, but it
 makes me skeptical that C11 is really required: why would it be required
 on Yosemite but not on older OSes?

 It also fails on Snow Leopard, with a newer MacPorts clang, with the same
 message about `static_assert`.

 I don't see any `-std` flag in the build either, so if C11 features are
 being used, you'd think it would specify `-std=c11`.

 Let me look at the code and see what's going on...

-- 
Ticket URL: <https://trac.macports.org/ticket/64113#comment:5>
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