[MacPorts] #29992: xournal: Missing dependency gdk

[MacPorts]

#29992: xournal: Missing dependency gdk
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 Reporter:  cal@…             |       Owner:  ryandesign@…           
     Type:  defect            |      Status:  new                    
 Priority:  Normal            |   Milestone:                         
Component:  ports             |     Version:  1.9.2                  
 Keywords:                    |        Port:  xournal                
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 I tried to install xournal, which failed with
 {{{
 :info:build xo-file.c:14:22: error: gdk/gdkx.h: No such file or directory
 :info:build xo-file.c: In function 'attempt_screenshot_bg':
 :info:build xo-file.c:935: warning: passing argument 1 of 'XGrabButton'
 makes pointer from integer without a cast
 :info:build xo-file.c:938: warning: passing argument 1 of 'XWindowEvent'
 makes pointer from integer without a cast
 :info:build xo-file.c:939: warning: passing argument 1 of 'XUngrabButton'
 makes pointer from integer without a cast
 :info:build xo-file.c:14:22: error: gdk/gdkx.h: No such file or directory
 :info:build xo-file.c: In function 'attempt_screenshot_bg':
 :info:build xo-file.c:935: warning: passing argument 1 of 'XGrabButton'
 makes pointer from integer without a cast
 :info:build xo-file.c:938: warning: passing argument 1 of 'XWindowEvent'
 makes pointer from integer without a cast
 :info:build xo-file.c:939: warning: passing argument 1 of 'XUngrabButton'
 makes pointer from integer without a cast
 }}}

 I guess this header is provided by either the gdk-pixbuf or gdk-pixbuf2
 port, which is not declared as a dependency for xournal.

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Ticket URL: <https://trac.macports.org/ticket/29992>
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