build: add install script for non-debian builds (#535)

install-scripts/meson.build

@@ -0,0 +1,15 @@
+# These scripts run as post-installation scripts.
+
+# They're designed to do nothing if DESTDIR is set, which happens
+# during debian builds for instance - there's a fake install target
+# so running these would be pointless.
+
+# When using deb packaging, these aren't needed, as these operations
+# are run automatically by the package manager.
+
+# They're really only necessary in straight builds where 'ninja install'
+# will be run directly, to install the program onto the system.
+
+
+# Re-compile gsettings
+meson.add_install_script('meson_install_schemas.py')

install-scripts/meson_install_schemas.py

@@ -0,0 +1,10 @@
+#!/usr/bin/python3
+
+import os
+import subprocess
+
+schemadir = os.path.join(os.environ['MESON_INSTALL_PREFIX'], 'share', 'glib-2.0', 'schemas')
+
+if not os.environ.get('DESTDIR'):
+    print('Compiling gsettings schemas...')
+    subprocess.call(['glib-compile-schemas', schemadir])

meson.build

@@ -94,6 +94,7 @@ subdir('help')
 if get_option('docs')
     subdir('docs/reference')
 endif
+subdir('install-scripts')
 
 # The tests use an option that doesn't exist in meson before 0.46.
 # Since they aren't strictly necessary, we'll just skip them for earlier versions