[MacPorts] #52248: inkscape fails to build due to glibmm inlining, regression caused by glib2 changes

[MacPorts]

#52248: inkscape fails to build due to glibmm inlining, regression caused by glib2
changes
------------------------+-----------------------------------
 Reporter:  jeremyhu@…  |      Owner:  macports-tickets@…
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.3.4
 Keywords:              |       Port:  glib2 glibmm inkscape
------------------------+-----------------------------------
 Updating to glib2-2.48.2 caused inkscape (or any project that uses parts
 of glibmm) to fail to build because gthread.h now obfuscates struct
 _GThread.

 {{{
 In file included from ui/dialog/new-from-template.cpp:12:
 In file included from ui/dialog/new-from-template.h:14:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/dialog.h:31:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/box.h:59:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/container.h:30:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/widget.h:48:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/rc.h:31:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/style.h:46:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/iconset.h:35:
 In file included from /opt/local/include/gtkmm-2.4/gtkmm/stockid.h:26:
 In file included from /opt/local/include/glibmm-2.4/glibmm.h:89:
 /opt/local/include/glibmm-2.4/glibmm/threads.h:209:11: error: field has
 incomplete type 'GThread' (aka '_GThread')
   GThread gobject_;
           ^
 /opt/local/include/glib-2.0/glib/gthread.h:49:16: note: forward
 declaration of '_GThread'
 typedef struct _GThread         GThread;
                ^
 1 error generated.
 }}}

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Ticket URL: <https://trac.macports.org/ticket/52248>
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