[MacPorts] #74324: "Error: Failed to build aom" on macOS 10.7 - 10.9

[MacPorts]

#74324: "Error: Failed to build aom" on macOS 10.7 - 10.9
----------------------------+------------------------
  Reporter:  scrutinizer11  |      Owner:  reneeotten
      Type:  defect         |     Status:  reopened
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.12.5
Resolution:                 |   Keywords:
      Port:  aom            |
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Comment (by Dave-Allured):

 > Missing assert.h include maybe?

 No.  I checked the code; that `include` is in there.  I think this is a
 wrong version of assert.h.

 `static_assert` was a macro provided by assert.h, starting at C11.  It is
 no longer provided by assert.h at C23.  I think this means that
 `static_assert` was added as a keyword directly in newer compilers.  If
 MacPorts is providing a too-recent version of assert.h, combined with an
 earlier compiler such as clang-16, that would explain this specific error.

 https://cppreference.net/c/language/static_assert.html

 If this is right, then I can think of two remedies:
 * Blacklist earlier compilers lacking the direct `static_assert` keyword,
 but continue to specify C11 standard;
 * or provide a correct version of assert.h when using clang-16.
 I do not know how to select an alternate version of assert.h.  That is all
 I have for now.

-- 
Ticket URL: <https://trac.macports.org/ticket/74324#comment:6>
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