[MacPorts] #57198: Failed to build libgcc8 on Mojave

[MacPorts]

#57198: Failed to build libgcc8 on Mojave
---------------------+---------------------
 Reporter:  miken32  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.5.3
 Keywords:           |       Port:  libgcc8
---------------------+---------------------
 Problems appears to be related to libunwind:


 {{{
 :info:build In file included from
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/libgcc8/work/gcc-8.2.0/libstdc++-v3/libsupc++/eh_alloc.cc:35:
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/libgcc8/work/gcc-8.2.0/libstdc++-v3/libsupc
 ++/unwind-cxx.h:92:3: error: '_Unwind_Ptr' does not name a type; did you
 mean '_Unwind_SetIP'?
 :info:build    _Unwind_Ptr catchTemp;
 :info:build    ^~~~~~~~~~~
 :info:build    _Unwind_SetIP
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/libgcc8/work/gcc-8.2.0/libstdc++-v3/libsupc
 ++/unwind-cxx.h:146:3: error: '_Unwind_Ptr' does not name a type; did you
 mean '_Unwind_SetIP'?
 :info:build    _Unwind_Ptr catchTemp;
 :info:build    ^~~~~~~~~~~
 :info:build    _Unwind_SetIP
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/libgcc8/work/gcc-8.2.0/libstdc++-v3/libsupc
 ++/unwind-cxx.h:320:7: error: '_Unwind_Exception_Class' does not name a
 type; did you mean '_Unwind_Exception'?
 :info:build  const _Unwind_Exception_Class __gxx_primary_exception_class
 :info:build        ^~~~~~~~~~~~~~~~~~~~~~~
 :info:build        _Unwind_Exception
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/libgcc8/work/gcc-8.2.0/libstdc++-v3/libsupc
 ++/unwind-cxx.h:332:7: error: '_Unwind_Exception_Class' does not name a
 type; did you mean '_Unwind_Exception'?
 :info:build  const _Unwind_Exception_Class __gxx_dependent_exception_class
 :info:build        ^~~~~~~~~~~~~~~~~~~~~~~
 :info:build        _Unwind_Exception
 }}}

 Full log file is attached

-- 
Ticket URL: <https://trac.macports.org/ticket/57198>
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