dia: add patch for glib 2.31+

Fixes Homebrew/homebrew#11987

Formula/dia.rb

@@ -13,6 +13,13 @@ class Dia < Formula
   depends_on 'libtiff'
   depends_on 'gtk+'
 
+  def patches
+    # fixes compilation with glib 2.31+
+    # see https://bugzilla.gnome.org/show_bug.cgi?id=665335
+    # fixed in master branch, should be removable in next release
+    DATA
+  end
+
   def install
     ENV.x11
     # fix for Leopard, potentially others with isspecial defined elswhere
@@ -24,3 +31,60 @@ class Dia < Formula
     rm_rf share+"applications"
   end
 end
+
+__END__
+diff --git a/objects/custom/shape_typeinfo.c b/objects/custom/shape_typeinfo.c
+index c6133b1..3fb3d73 100644
+--- a/objects/custom/shape_typeinfo.c
++++ b/objects/custom/shape_typeinfo.c
+@@ -27,7 +27,7 @@
+ #include "custom_util.h"
+ #include <string.h>
+ #include <stdarg.h>
+-#include <glib/gstrfuncs.h>
++#include <glib.h>
+ #include <glib/gstdio.h>
+ #include <libxml/parser.h>
+ 
+diff --git a/plug-ins/pgf/render_pgf.c b/plug-ins/pgf/render_pgf.c
+index 3fe5bbd..24b812e 100644
+--- a/plug-ins/pgf/render_pgf.c
++++ b/plug-ins/pgf/render_pgf.c
+@@ -61,7 +61,7 @@ TODO:
+ #endif
+ #include <errno.h>
+ 
+-#include <glib/gprintf.h>
++#include <glib.h>
+ #include <glib/gstdio.h>
+ 
+ #include "intl.h"
+diff --git a/tests/test-boundingbox.c b/tests/test-boundingbox.c
+index 7adaab5..a13d018 100644
+--- a/tests/test-boundingbox.c
++++ b/tests/test-boundingbox.c
+@@ -28,9 +28,6 @@
+ #include <glib.h>
+ #include <glib-object.h>
+ 
+-#if GLIB_CHECK_VERSION(2,16,0)
+-#include <glib/gtestutils.h>
+-#endif
+ #include "dialib.h"
+ 
+ /*
+diff --git a/tests/test-objects.c b/tests/test-objects.c
+index 57d5675..c5980a5 100644
+--- a/tests/test-objects.c
++++ b/tests/test-objects.c
+@@ -28,10 +28,6 @@
+ #include <glib.h>
+ #include <glib-object.h>
+ 
+-#if GLIB_CHECK_VERSION(2,16,0)
+-#include <glib/gtestutils.h>
+-#endif
+-
+ #include "object.h"
+ #include "plug-ins.h"
+ #include "dialib.h"