[MacPorts] #49507: LaTeXML: /usr/texbin/ no longer exists on 10.11

[MacPorts]

#49507: LaTeXML: /usr/texbin/ no longer exists on 10.11
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  Reporter:  mojca@…  |      Owner:  bruce.miller@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  LaTeXML  |
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Comment (by bruce.miller@…):

 You're quite right that one generally should avoid calling programs from
 texbin explicitly.  However, the point is that I'm adding new TeX style
 files and want whichever TeX to be able to find them.  Getting MacPort's
 texlive TeX to find them is pretty much handled by the texlive stuff.  In
 the +MacTeX variant I want to ensure that MacTeX's tex can find them, so
 I'm calling MacTeX's kpsewhich and mktexlsr, not MacPort's.
 Unfortunately, since during the build the $PATH is abbreviated, I ended up
 having to use an explicit pathname to reach (or ''try'' to reach!)
 MacTeX's utilities.  Of course, the danger in hard-wiring the path is
 exactly what has happened. Is there a more portable way to do this?

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Ticket URL: <https://trac.macports.org/ticket/49507#comment:6>
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