[MacPorts] #74336: OpenBLAS fails to build on 10.13 High Sierra

[MacPorts]

#74336: OpenBLAS fails to build on 10.13 High Sierra
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  Reporter:  JohnFHall  |      Owner:  (none)
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.12.5
Resolution:             |   Keywords:  highsierra X86_64
      Port:  openBLAS   |
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Comment (by JULWAL1):

 Replying to [comment:9 ballapete]:
 > MacPorts installs dylibs mostly as a triple à la lib{name}.dylib,
 lib{name}.{major}.dylib, lib{name}.{major}.{minor}.dylib. Only the latter
 is a real file, the others are symlinks. A programme depending on that
 dylib can be linked to any of the three. If linked to
 lib{name}.{major}.{minor}.dylib it will need re-linking (rebuild) every
 time the dylib's minor version number changes, in other cases quite seldom
 when linked to the major version number, and almost never when linked to
 lib{name}.dylib. (It depends on the lib's API rules whether they change in
 a way that compatibility is partly or completely lost.) Maybe NumPY binds
 cleverly to a well-behaving dylib…
 >
 > BTW, have you heard of `install_name_tool`? It allows to "fix" the
 recorded dylib names.

 Thanks for the info - very handy to know.

 And, yes, I have heard of install_name_tool - I tried using it to change a
 non-existent dylib entry in the results from {{{otool -L <path to
 .dylib>}}} for the dylib from the PyIP package ''pipdeptree''.

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Ticket URL: <https://trac.macports.org/ticket/74336#comment:11>
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