[MacPorts] #64155: bazel: builds failing for macOS 10.12 through 10.15

[MacPorts]

#64155: bazel: builds failing for macOS 10.12 through 10.15
----------------------+--------------------------
  Reporter:  mascguy  |      Owner:  cjones051073
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.7.1
Resolution:           |   Keywords:
      Port:  bazel    |
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Comment (by cjones051073):

 Actually, now I look again I recall that path isn't used as it didn't work
 last time I tried...

 bazel internally builds (yes, builds, its c++) its own wrapper around the
 compiler used. So to get it to use a macports compiler I had to patch
 this. see

 https://github.com/macports/macports-
 ports/blob/f724e39a14363cc10482135c2410310f2644b07d/devel/bazel/Portfile#L259

 as perhaps a better place to start.

 but, I warn you again, this is really a rabbit hole of Alice in Wonderland
 proportions...

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Ticket URL: <https://trac.macports.org/ticket/64155#comment:4>
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