[gnome-contacts] Make a separate build-aux folder

[Niels De Graef <nielsdg src gnome org>]

commit 3a0ff804a6626a340f429c00bff7f3fccbdefeec
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Oct 31 18:43:06 2018 +0100

    Make a separate build-aux folder

 meson_post_install.py => build-aux/meson_post_install.py | 0
 meson.build                                              | 2 +-
 2 files changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson_post_install.py b/build-aux/meson_post_install.py
similarity index 100%
rename from meson_post_install.py
rename to build-aux/meson_post_install.py
diff --git a/meson.build b/meson.build
index c126639..1c7694f 100644
--- a/meson.build
+++ b/meson.build
@@ -84,7 +84,7 @@ conf.set('GOA_API_IS_SUBJECT_TO_CHANGE', true)
 configure_file(output: 'config.h', configuration: conf)
 
 # Post-install scripts
-meson.add_install_script('meson_post_install.py')
+meson.add_install_script('build-aux/meson_post_install.py')
 
 # Subfolders
 subdir('data')