[MacPorts] #48612: ghc build failed on dtrace

[MacPorts]

#48612: ghc build failed on dtrace
-------------------------+----------------------------
  Reporter:  J.Gilbey@…  |      Owner:  kitchen.andy@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.3
Resolution:              |   Keywords:
      Port:  ghc         |
-------------------------+----------------------------

Comment (by cal@…):

 Turns out dtrace isn't actually used to trace anything, but to generate a
 header file from rts/RtsProbes.d to allow better tracing of Haskell
 programs. However, my call of dtrace does actually not fail:

 {{{
 "/usr/sbin/dtrace" -Iincludes -Iincludes/dist -Iincludes/dist-
 derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts
 -Irts/dist/build -C -x cpppath=/usr/bin/clang -h -o
 rts/dist/build/RtsProbes.h -s rts/RtsProbes.d
 }}}

 Did you try running this command manually? What happens if you run the
 command itself under `dtruss(1)`? Does Console.app contain any useful
 information on the problem?

-- 
Ticket URL: <https://trac.macports.org/ticket/48612#comment:5>
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