Do not set C++ locale.

Ardour translations and GUI string formatting only depends on the C locale.
Modifying the C++ locale may produce erratic results on various systems
(in particular OSX and macOS) and cause incompatibilies with plugins.

4 files changed, 1 insertions, 54 deletions

diff --git a/gtk2_ardour/main.cc b/gtk2_ardour/main.cc
index 3d4e2da20f..10c9c306e7 100644
--- a/gtk2_ardour/main.cc
+++ b/gtk2_ardour/main.cc
@@ -304,24 +304,9 @@ int main (int argc, char *argv[])
 #endif
 
 #ifdef ENABLE_NLS
-	/* initialize C and C++ locales to user preference */
-	char* l_msg = NULL;
-	char* l_num = NULL;
+	/* initialize C locale to user preference */
 	if (ARDOUR::translations_are_enabled ()) {
 		setlocale (LC_ALL, "");
-		try {
-			std::locale::global (std::locale (setlocale (LC_ALL, 0)));
-		} catch (...) {
-			std::cerr << "Cannot set C++ locale\n";
-		}
-#ifndef COMPILER_MSVC
-		// LC_MESSAGES isn't a supported locale setting when building
-		// with MSVC (in fact, I doubt if it's valid for Windows at all)
-		l_msg = setlocale (LC_MESSAGES, NULL);
-#endif
-		l_num = setlocale (LC_NUMERIC, NULL);
-		if (l_msg) { l_msg = strdup (l_msg); }
-		if (l_num) { l_num = strdup (l_num); }
 	}
 #endif
 
@@ -399,25 +384,6 @@ int main (int argc, char *argv[])
 		return curvetest (curvetest_file);
 	}
 
-#ifdef ENABLE_NLS
-	ARDOUR::LocaleMode locale_mode = UIConfiguration::instance().get_locale_mode ();
-	if (l_msg && l_num && locale_mode != ARDOUR::SET_LC_ALL) {
-		try {
-			std::locale cpp_locale (std::locale::classic ());
-			cpp_locale = std::locale (cpp_locale, l_msg, std::locale::messages);
-			if (ARDOUR::SET_LC_MESSAGES_AND_LC_NUMERIC == locale_mode) {
-				cpp_locale = std::locale (cpp_locale, l_num, std::locale::numeric);
-			}
-			std::locale::global (cpp_locale);
-		} catch (...) {
-			std::cerr << "Cannot override C++ locale\n";
-		}
-		info << "LC_ALL: " << setlocale (LC_ALL, NULL) << endmsg;
-	}
-	free (l_msg);
-	free (l_num);
-#endif
-
 #ifndef PLATFORM_WINDOWS
 	if (::signal (SIGPIPE, sigpipe_handler)) {
 		cerr << _("Cannot xinstall SIGPIPE error handler") << endl;
diff --git a/gtk2_ardour/rc_option_editor.cc b/gtk2_ardour/rc_option_editor.cc
index 674ec2c88a..84034ae633 100644
--- a/gtk2_ardour/rc_option_editor.cc
+++ b/gtk2_ardour/rc_option_editor.cc
@@ -2296,19 +2296,6 @@ RCOptionEditor::RCOptionEditor ()
 
 	add_option (_("General/Translation"), bo);
 
-	_l10n = new ComboOption<ARDOUR::LocaleMode> (
-		"locale-mode",
-		_("Localization"),
-		sigc::mem_fun (UIConfiguration::instance(), &UIConfiguration::get_locale_mode),
-		sigc::mem_fun (UIConfiguration::instance(), &UIConfiguration::set_locale_mode)
-		);
-
-	_l10n->add (ARDOUR::SET_LC_ALL, _("Set complete locale"));
-	_l10n->add (ARDOUR::SET_LC_MESSAGES, _("Enable only message translation"));
-	_l10n->add (ARDOUR::SET_LC_MESSAGES_AND_LC_NUMERIC, _("Translate messages and format numeric format"));
-	_l10n->set_note (_("This setting is provided for plugin compatibility. e.g. some plugins on some systems expect the decimal point to be a dot."));
-
-	add_option (_("General/Translation"), _l10n);
 	parameter_changed ("enable-translation");
 #endif // ENABLE_NLS
 
@@ -3972,10 +3959,6 @@ RCOptionEditor::parameter_changed (string const & p)
 #if (defined LV2_SUPPORT && defined LV2_EXTENDED)
 		_plugin_prefer_inline->set_sensitive (UIConfiguration::instance().get_open_gui_after_adding_plugin() && UIConfiguration::instance().get_show_inline_display_by_default());
 #endif
-#ifdef ENABLE_NLS
-	} else if (p == "enable-translation") {
-		_l10n->set_sensitive (ARDOUR::translations_are_enabled ());
-#endif
 	}
 }
 
diff --git a/gtk2_ardour/rc_option_editor.h b/gtk2_ardour/rc_option_editor.h
index e0d0116c36..d6c5bed4a7 100644
--- a/gtk2_ardour/rc_option_editor.h
+++ b/gtk2_ardour/rc_option_editor.h
@@ -60,7 +60,6 @@ private:
 	Gtk::Adjustment* _ltc_volume_adjustment;
 	BoolOption* _ltc_send_continuously;
 	BoolOption* _plugin_prefer_inline;
-	ComboOption<ARDOUR::LocaleMode>* _l10n;
 
 	PBD::ScopedConnection parameter_change_connection;
 	PBD::ScopedConnection engine_started_connection;
diff --git a/gtk2_ardour/ui_config_vars.h b/gtk2_ardour/ui_config_vars.h
index 53a02865a7..ae94452c96 100644
--- a/gtk2_ardour/ui_config_vars.h
+++ b/gtk2_ardour/ui_config_vars.h
@@ -70,7 +70,6 @@ UI_CONFIG_VARIABLE (float, meter_hold, "meter-hold", 100.0f)
 UI_CONFIG_VARIABLE (ARDOUR::VUMeterStandard, meter_vu_standard, "meter-vu-standard", ARDOUR::MeteringVUstandard)
 UI_CONFIG_VARIABLE (ARDOUR::MeterLineUp, meter_line_up_level, "meter-line-up-level", ARDOUR::MeteringLineUp18)
 UI_CONFIG_VARIABLE (ARDOUR::MeterLineUp, meter_line_up_din, "meter-line-up-din", ARDOUR::MeteringLineUp15)
-UI_CONFIG_VARIABLE (ARDOUR::LocaleMode, locale_mode, "locale-mode", ARDOUR::SET_LC_ALL)
 UI_CONFIG_VARIABLE (float, meter_peak, "meter-peak", 0.0f)
 UI_CONFIG_VARIABLE (bool, meter_style_led, "meter-style-led", false)
 UI_CONFIG_VARIABLE (bool, show_editor_meter, "show-editor-meter", true)