[MacPorts] #62578: py-scipy/py-numpy: opportunistic linking to py-mkl breaks both of these ports

[MacPorts]

#62578: py-scipy/py-numpy: opportunistic linking to py-mkl breaks both of these
ports
--------------------------------+-----------------------
  Reporter:  essandess          |      Owner:  michaelld
      Type:  defect             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.7.1
Resolution:                     |   Keywords:  rpath
      Port:  py-scipy py-numpy  |
--------------------------------+-----------------------

Comment (by mascguy):

 Building `py39-numpy` via trace mode - notably, when `py39-mkl` was also
 active - yielded the following warnings. No surprise at all, but just to
 validate the prior conclusion of opportunistic linking:

 {{{
 Warning: The following existing files were hidden from the build system by
 trace mode:
 /opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/libmkl_rt.dylib
   /opt/local/bin/clang-mp-10
   /opt/local/bin/clang-mp-9.0
   /opt/local/bin/svnversion
   /opt/local/lib/libunwind.dylib
 Warning: The following file inside the MacPorts prefix not installed by a
 port was accessed:
   /opt/local/lib/lib
 --->  Staging py39-numpy into destroot
 Warning: The following existing files were hidden from the build system by
 trace mode:
 /opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/libmkl_rt.dylib
   /opt/local/bin/clang-mp-10
   /opt/local/bin/clang-mp-9.0
   /opt/local/bin/svnversion
   /opt/local/lib/libunwind.dylib
   /var/root/.CFUserTextEncoding
 Warning: The following file inside the MacPorts prefix not installed by a
 port was accessed:
   /opt/local/lib/lib
 }}}

 Full log attached; filename: `py39-numpy-trace-install-10.13.log.xz`

-- 
Ticket URL: <https://trac.macports.org/ticket/62578#comment:21>
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