[atkmm] Meson build: No implicit_include_directories

[Kjell Ahlstedt <kjellahl src gnome org>]

commit b611f7a56ebaf574f5e3074b6b3d22effc471f15
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Thu Apr 8 18:31:53 2021 +0200

    Meson build: No implicit_include_directories

 codegen/extradefs/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/codegen/extradefs/meson.build b/codegen/extradefs/meson.build
index 7400a85..e6f89ea 100644
--- a/codegen/extradefs/meson.build
+++ b/codegen/extradefs/meson.build
@@ -16,6 +16,7 @@ endif
 
 executable('generate_extra_defs', 'generate_extra_defs_atk.cc',
   dependencies: [atkmm_build_dep, glibmm_generate_extra_defs_dep],
+  implicit_include_directories: false,
   install: false,
 )