[MacPorts] #71728: xxhashlib 0.8.3 broken on Rosetta

[MacPorts]

#71728: xxhashlib 0.8.3 broken on Rosetta
---------------------------+----------------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.5
Resolution:                |   Keywords:  rosetta, snowleopard
      Port:  xxhashlib     |
---------------------------+----------------------------------

Comment (by ryandesign):

 Does changing the line to
 {{{
 detect_x86_arch = $(shell $(CC) $(CFLAGS) -dumpmachine | grep -E
 'i[3-6]86|x86_64')
 }}}
 not work? I haven't tested it, but I have verified that e.g. `cc -arch
 arm64 -dumpmachine` on my x86_64 machine produces `arm64-apple-
 darwin21.6.0` which seems promising.

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Ticket URL: <https://trac.macports.org/ticket/71728#comment:4>
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