Fix glib schemas

data/meson.build

@@ -15,7 +15,6 @@ install_data(['postprocess.sh'],
   install_mode: 'rwxr-xr-x')
 
 settings_schemas = ['org.postmarketos.Megapixels.gschema.xml']
-schemas_dir = get_option('prefix') / get_option('datadir') / 'glib-2.0' / 'schemas'
+schemas_dir = get_option('datadir') / 'glib-2.0' / 'schemas'
 install_data(settings_schemas, install_dir: schemas_dir)
 gnome.compile_schemas(depend_files: files(settings_schemas))
-meson.add_install_script('glib-compile-schemas', schemas_dir)