project: Port to meson build system

https://bugzilla.gnome.org/show_bug.cgi?id=782843

meson_post_install.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import glob
+import os
+import re
+import subprocess
+
+install_prefix = os.environ['MESON_INSTALL_PREFIX']
+
+name_pattern = re.compile('hicolor_apps_(?:\d+x\d+|symbolic)_(.*)')
+search_pattern = '/**/hicolor_*'
+
+icondir = os.path.join(install_prefix, 'share', 'icons', 'hicolor')
+[os.rename(file, os.path.join(os.path.dirname(file), name_pattern.search(file).group(1)))
+ for file in glob.glob(icondir + search_pattern, recursive=True)]
+
+schemadir = os.path.join(install_prefix, 'share', 'glib-2.0', 'schemas')
+
+if not os.environ.get('DESTDIR'):
+  print('Update icon cache...')
+  subprocess.call(['gtk-update-icon-cache', '-f', '-t', icondir])
+
+  print('Compiling gsettings schemas...')
+  subprocess.call(['glib-compile-schemas', schemadir])