only install the required man pages

data/man/meson.build

@@ -1,6 +1,15 @@
-man_pages = files(
+man_pages = files()
-    'tuf-cli.1',
+if build_cli
-    'tuf-gui.1',
+    man_pages += files('tuf-cli.1')
-    'tuf-tray.1'
+endif
-)
+if build_gui
+    man_pages += files('tuf-gui.1')
+endif
+if build_tray
+    man_pages += files('tuf-tray.1')
+endif
+
+if build_cli or build_gui or build_tray
     install_man(man_pages)
+endif
+

meson.build

@@ -4,7 +4,7 @@ project(
         'c',
         'vala'
     ],
-    version: '1.2.0',
+    version: '1.2.1',
     license: 'BSD-3',
     default_options:
     [