[gtk+] build: Add the appropriate inclusion paths for libgtk

[Emmanuele Bassi <ebassi src gnome org>]

commit 28dcb502316d1002c179147b9b3db46e2706a583
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Apr 19 11:34:59 2017 +0100

    build: Add the appropriate inclusion paths for libgtk

 gtk/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/meson.build b/gtk/meson.build
index 6044bce..badb390 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -881,7 +881,7 @@ libgtk = shared_library('gtk-4',
   soversion: gtk_soversion,
   sources: [typefuncs, gtk_sources, gtkmarshal_h, gtkprivatetypebuiltins_h],
   c_args: gtk_cargs + common_cflags,
-  include_directories: [confinc, gdkinc, gtkinc],
+  include_directories: [confinc, gdkinc, gskinc, gtkinc],
   dependencies: gtk_deps + [libgdk_dep, libgsk_dep],
   link_with: [libgdk, libgsk, included_input_modules],
   link_args: common_ldflags,