[MacPorts] #42123: Cannot install Atlas

[MacPorts]

#42123: Cannot install Atlas
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  Reporter:  anat.stolarsky@…  |      Owner:  macports-tickets@…
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.2.1
Resolution:                    |   Keywords:
      Port:                    |
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Comment (by anat.stolarsky@…):

 Replying to [comment:1 vince@…]:
 > Please clean and try building with the +clang option instead.
 > The error you get points to some configuration woes. The compiler does
 not find the standard <stdio.h>, which implies something is amiss with the
 environment.


 Thank you,
 Retried this and now the build seems to halt...
 I am attaching the log again

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Ticket URL: <https://trac.macports.org/ticket/42123#comment:2>
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