[MacPorts] #41304: luajit: add universal variant

[MacPorts]

#41304: luajit: add universal variant
---------------------------+--------------------------
  Reporter:  ryandesign@…  |      Owner:  and.damore@…
      Type:  enhancement   |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  luajit        |
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Comment (by and.damore@…):

 I'm not sure it can be built universal, ''src/Makefile'' is guessing the
 arch using ''$(CC) $(CFLAGS) -E  lj_arch.h -dM'' and searching the output
 for known arch, this fails when passing two -arch because the preprocessor
 doesn't support that
 {{{
 clang: error: cannot use 'c-header-cpp-output' output with multiple -arch
 options
 }}}

 Any suggestion?

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Ticket URL: <https://trac.macports.org/ticket/41304#comment:2>
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