[MacPorts] #67268: gtk3 fails on 10.5 - missing type_traits

[MacPorts]

#67268: gtk3 fails on 10.5 - missing type_traits
----------------------------+----------------------
 Reporter:  rmottola        |      Owner:  mascguy
     Type:  defect          |     Status:  assigned
 Priority:  Normal          |  Milestone:
Component:  ports           |    Version:
 Keywords:  leopard legacy  |       Port:  gtk3
----------------------------+----------------------
 using clang 7.0

 {{{
 In file included from autotestkeywords.cc:1:
 In file included from ../../gtk/gtk.h:30:
 In file included from ../../gdk/gdk.h:30:
 In file included from ../../gdk/gdkconfig.h:13:
 In file included from /opt/local/include/glib-2.0/glib.h:32:
 In file included from /opt/local/include/glib-2.0/glib/gasyncqueue.h:32:
 In file included from /opt/local/include/glib-2.0/glib/gthread.h:32:
 In file included from /opt/local/include/glib-2.0/glib/gatomic.h:28:
 /opt/local/include/glib-2.0/glib/glib-typeof.h:39:10: fatal error:
 'type_traits' file not found
 #include <type_traits>
          ^~~~~~~~~~~~~
 1 error generated.
 make[4]: *** [autotestkeywords-autotestkeywords.o] Error 1

 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/67268>
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