remove default-qt-settings * configure.ac: remove mk-default-qt-settings.sh from OCTAVE_CONFIG_MOVE_IF_CHANGE_FILES * default-qt-settings.in: remove file * libgui/module.mk: remove all occurrences of default-qt-settings and mk-default-qt-settings.in.sh * gui-preferences-global.h: set defaults for the custom editor depending on the target system here and not in the resource manager * resource-manager.cc (default_qt_settings_file): remove; (reload_settings): if settings file does not yet exist, determine default font and custom editor - possibly from environment variable - and write them into the newly created settings file, otherwise use existing settings file; (set_settings): create settings and write a test settings to make sure a newly created file does really exist * run-octave.in: remove setting the environment variable OCTAVE_DEFAULT_QT_SETTINGS

--- a/libgui/src/gui-preferences-global.h	Thu Apr 08 13:20:17 2021 -0400
+++ b/libgui/src/gui-preferences-global.h	Thu Apr 08 21:19:10 2021 +0200
@@ -115,8 +115,14 @@
 
 const gui_pref
 global_use_custom_editor ("useCustomFileEditor", QVariant (false));
+
+#if defined (Q_OS_WIN32)
+const gui_pref
+global_custom_editor ("customFileEditor", QVariant ("notepad++ -n%l %f"));
+#else
 const gui_pref
 global_custom_editor ("customFileEditor", QVariant ("emacs +%l %f"));
+#endif
 
 const gui_pref
 global_prompt_to_exit ("prompt_to_exit", QVariant (false));