[MacPorts] #61700: OpenBlas fails to build on macOS BigSur (Apple Silicon)

[MacPorts]

#61700: OpenBlas fails to build on macOS BigSur (Apple Silicon)
------------------------------+-------------------------
  Reporter:  Gregory-Gelfond  |      Owner:  NicosPavlov
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.6.4
Resolution:                   |   Keywords:  arm64
      Port:  openblas         |
------------------------------+-------------------------

Comment (by ryandesign):

 {{{
 make[1]: *** No rule to make target `../kernel/arm64/amin.S', needed by
 `samin_k.o'.  Stop.
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61700#comment:2>
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