[gtk/wip/nirbheek/gtk-3-24-meson] fixup! meson: Sync build files with master and update to 3.24

[Nirbheek Chauhan <nirbheekc src gnome org>]

commit cc5ebe48e7f43c3f1455840603d3cd30f5fe8f77
Author: Nirbheek Chauhan <nirbheek centricular com>
Date:   Tue Nov 20 17:17:15 2018 +0530

    fixup! meson: Sync build files with master and update to 3.24

 gdk/meson.build | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gdk/meson.build b/gdk/meson.build
index c64e231bf5..e9e7b8a819 100644
--- a/gdk/meson.build
+++ b/gdk/meson.build
@@ -77,8 +77,10 @@ gdk_public_headers = files(
   'gdkvisual.h',
   'gdkwindow.h',
 )
+install_headers(gdk_public_headers, subdir : 'gtk-3.0/gdk')
 
 deprecated_h_sources = files('deprecated/gdkcolor.h')
+install_headers(deprecated_h_sources, subdir : 'gtk-3.0/gdk/deprecated')
 
 # This variable is unused, but added just for completeness
 gdk_private_headers = files(