[MacPorts] #60576: Error: rev-upgrade failed: Error rebuilding boost-numpy

[MacPorts]

#60576: Error: rev-upgrade failed: Error rebuilding boost-numpy
----------------------------+--------------------
  Reporter:  BeastOfBodmin  |      Owner:  (none)
      Type:  defect         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:  invalid        |   Keywords:
      Port:  boost-numpy    |
----------------------------+--------------------

Comment (by kencu):

 You see how you have boost installed with +python27? That's the issue. It
 comes from some previous version of boost you installed.

 If you do this:
 {{{
 sudo port -f uninstall boost
 sudo port -v install boost
 }}}
 you will then pick up the new default variants for boost, which are now
 +python38.
 {{{
 $ port info boost
 boost @1.71.0_2 (devel)
 Sub-ports:            boost-numpy
 Variants:             clang10, clang33, clang34, clang37, clang50,
 clang60,
                       clang70, clang80, clang90, cmake_scripts, debug,
 mpich,
                       mpich_devel, [+]no_single, [+]no_static, openmpi,
                       openmpi_devel, python27, python35, python36,
 python37,
                       [+]python38, regex_match_extra, universal

 }}}

 If you, for some reason, want to standardize on a different python
 version, you would have to manually force it by specifying a boost
 version.

-- 
Ticket URL: <https://trac.macports.org/ticket/60576#comment:9>
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