[MacPorts] #62879: unable to install py39-numpy because of OpenBLAS build failure

[MacPorts]

#62879: unable to install py39-numpy because of OpenBLAS build failure
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  Reporter:  giovannicantele    |      Owner:  michaelld
      Type:  defect             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:
Resolution:                     |   Keywords:  arm
      Port:  py-numpy openblas  |
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Comment (by giovannicantele):

 Replying to [comment:14 cjones051073]:
 > Look again at my commit.....
 >
 > I have reverted OpenBLAS back to using gcc10 on arm, which is fine.


 Unfortunately, it seems that when installing other ports, just like gimp,
 they request OpenBLAS with gcc11 variant, end this conflicts with OpenBLAS
 reverted back to using gcc10:
 {{{
 :error:clean Requested variants "+gcc11+lapack+native" do not match those
 the build was started with: "+gcc10+lapack+native".
 :error:clean Please use the same variants again, or run 'port clean
 OpenBLAS' first to remove the existing partially completed build.
 }}}

 After {{{sudo port clean openblas}} and then again, for example, {{{sudo
 port install gimp}}}, the {{{loader_path}}} error comes back again:
 {{{
 :info:build ld: file not found: loader_path
 :info:build collect2: error: ld returned 1 exit status
 :info:build make[1]: *** [libopenblas-r1.dylib] Error 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/62879#comment:17>
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