[MacPorts] #65247: OpenVPN3 build fails on older OS versions

[MacPorts]

#65247: OpenVPN3 build fails on older OS versions
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  Reporter:  iAmInActions   |      Owner:  mascguy
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.2
Resolution:                 |   Keywords:
      Port:  openvpn3 asio  |
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Changes (by mascguy):

 * owner:  i0ntempest => mascguy
 * cc: mascguy (removed)
 * cc: i0ntempest (added)


Comment:

 Replying to [comment:6 jmroot]:
 > The comments in `AssertMacros.h` actually discuss exactly this kind of
 problem, and there is a mechanism to avoid it: simply define
 `__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES` to 0 before the
 header is included. It's not immediately clear where it's being pulled in,
 however—could be in openvpn3, or asio, or somewhere else?

 Great point, I'll add this to my to-fix list.

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Ticket URL: <https://trac.macports.org/ticket/65247#comment:8>
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