[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:  reopened
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:  2.3.4
Resolution:                         |   Keywords:
      Port:  libomp                 |
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Comment (by howarth.at.macports@…):

 I would note that the libcxx sources also have no mechanism to
 automatically detect and build all supported architectures on darwin so it
 seems a tad unreasonable to demand the openmp developers alone implement
 that.  Looking at sources in compiler-rt/cmake regarding the requested
 automation, those changes will be fairly extensive and seem a rather heavy
 burden to foist on the openmp developer when libcxx isn't being held to
 the same requirement.

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Ticket URL: <https://trac.macports.org/ticket/50511#comment:13>
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