Build system: Don't compile schemas when packing

src/data/meson.build

@@ -9,17 +9,24 @@ gnome.compile_resources(
   install_dir: INSTALL_DIR / 'resources',
 )
 
-glib_compile_schemas_exe = find_program('glib-compile-schemas')
+install_data(
-custom_target(
+  DNS + '.gschema.xml',
-  'gschemas',
-  build_by_default: true,
-  build_always_stale: true,
-  output: 'gschemas.compiled',
-  command: [
-    glib_compile_schemas_exe,
-    '--targetdir=@OUTDIR@',
-    '@CURRENT_SOURCE_DIR@'
-  ],
-  install: true,
   install_dir: INSTALL_DIR / 'schemas'
 )
+
+if not get_option('pack')
+  glib_compile_schemas_exe = find_program('glib-compile-schemas')
+  custom_target(
+    'gschemas',
+    build_by_default: true,
+    build_always_stale: true,
+    output: 'gschemas.compiled',
+    command: [
+      glib_compile_schemas_exe,
+      '--targetdir=@OUTDIR@',
+      '@CURRENT_SOURCE_DIR@'
+    ],
+    install: true,
+    install_dir: INSTALL_DIR / 'schemas'
+  )
+endif