[MacPorts] #50511: libomp: build fat library on x86_64 to provide i386 support

[MacPorts]

#50511: libomp: build fat library on x86_64 to provide i386 support
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  Reporter:  howarth.at.macports@…  |      Owner:  macports-tickets@…
      Type:  enhancement            |     Status:  new
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:  2.3.4
Resolution:                         |   Keywords:
      Port:  libomp                 |
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Comment (by howarth.at.macports@…):

 Sorry about the multiple uploads of the diff. Both are now the same with
 the missing backslash added before the colon in the cmake option (to keep
 port from being confused by the colon).

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Ticket URL: <https://trac.macports.org/ticket/50511#comment:1>
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