[glibmm] Meson build: No implicit_include_directories

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 447c85d3e438bbe30a3e8407a56927ac7c4d233a
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Thu Apr 8 18:22:58 2021 +0200

    Meson build: No implicit_include_directories

 examples/meson.build             | 1 +
 tests/meson.build                | 1 +
 tools/extra_defs_gen/meson.build | 2 ++
 3 files changed, 4 insertions(+)
---
diff --git a/examples/meson.build b/examples/meson.build
index 802a1bf8..5f2089a8 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -68,6 +68,7 @@ foreach ex : examples
   executable(ex_name, ex_sources,
     cpp_args: ['-DGLIBMM_DISABLE_DEPRECATED', '-DGIOMM_DISABLE_DEPRECATED'],
     dependencies: is_multithread ? [mm_dep, thread_dep] : mm_dep,
+    implicit_include_directories: false,
     gui_app: false,
     build_by_default: build_examples,
     install: false,
diff --git a/tests/meson.build b/tests/meson.build
index 814bce83..dabeb775 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -59,6 +59,7 @@ foreach ex : test_programs
   exe_file = executable(ex_name, ex_sources,
     cpp_args: ['-DGLIBMM_DISABLE_DEPRECATED', '-DGIOMM_DISABLE_DEPRECATED'],
     dependencies: is_multithread ? [mm_dep, thread_dep] : mm_dep,
+    implicit_include_directories: false,
     gui_app: false,
     build_by_default: true,
     install: false,
diff --git a/tools/extra_defs_gen/meson.build b/tools/extra_defs_gen/meson.build
index b954f309..92849a39 100644
--- a/tools/extra_defs_gen/meson.build
+++ b/tools/extra_defs_gen/meson.build
@@ -35,11 +35,13 @@ install_headers('generate_extra_defs.h', subdir: glibmm_pcname / 'glibmm_generat
 executable('generate_defs_glib', 'generate_defs_glib.cc',
   dependencies: glibmm_build_dep,
   link_with: glibmm_generate_extra_defs_library,
+  implicit_include_directories: false,
   install: false,
 )
 
 executable('generate_defs_gio', 'generate_defs_gio.cc',
   dependencies: giomm_build_dep,
   link_with: glibmm_generate_extra_defs_library,
+  implicit_include_directories: false,
   install: false,
 )