[MacPorts] #43869: libgcc @4.8.2_1: error: '_Unwind_Ptr' does not name a type

[MacPorts]

#43869: libgcc @4.8.2_1: error: '_Unwind_Ptr' does not name a type
---------------------------+--------------------
  Reporter:  ryandesign@…  |      Owner:  mww@…
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.0
Resolution:  fixed         |   Keywords:
      Port:  libgcc        |
---------------------------+--------------------

Comment (by jeremyhu@…):

 Yep.  And if you drop your -isystem, does it work?  I wonder if this is a
 but with -isystem in gcc.

 {{{
 2047    # 36
 "/opt/local/var/macports/build/_Users_rschmidt_macports_dports_lang_gcc5
 /libgcc-devel/work/gcc-5-20150111/libstdc++-v3/libsupc++/unwind-cxx.h" 2
 2048    # 1 "/opt/local/include/unwind.h" 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/43869#comment:23>
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