String literals for UTF-8 language names using octal escapes only...

... Leaving absolutely no doubt about the portability.

New Perl script in locale emits the required C++ source when LanguageNames.txt
is updated.

src/Languages.cpp

@@ -128,62 +128,62 @@ wxString GetSystemLanguageCode()
 void GetLanguages(wxArrayString &langCodes, wxArrayString &langNames)
 {
    static const char *const utf8Names[] = {
-      "af Afrikaans",
-      "ar العربية",
-      "be Беларуская",
-      "bg Български",
-      "bn বাংলা",
-      "bs Bosanski",
-      "ca Català",
-      "ca_ES@valencia Valencià",
-      "cs Čeština",
-      "cy Cymraeg",
-      "da Dansk",
-      "de Deutsch",
-      "el Ελληνικά",
-      "en English",
-      "es Español",
-      "eu Euskara",
-      "eu_ES Euskara (Espainiako)",
-      "fa فارسی",
-      "fi Suomi",
-      "fr Français",
-      "ga Gaeilge",
-      "gl Galego",
-      "he עברית",
-      "hi हिन्दी",
-      "hr Hrvatski",
-      "hu Magyar",
-      "hy Հայերեն",
-      "id Bahasa Indonesia",
-      "it Italiano",
-      "ja 日本語",
-      "ka ქართული",
-      "km ខេមរភាសា",
-      "ko 한국어",
-      "lt Lietuvių",
-      "mk Македонски",
-      "my မြန်မာစာ",
-      "nb Norsk",
-      "nl Nederlands",
-      "oc Occitan",
-      "pl Polski",
-      "pt Português",
-      "pt_BR Português (Brasil)",
-      "ro Română",
-      "ru Русский",
-      "sk Slovenčina",
-      "sl Slovenščina",
-      "sr_RS Српски",
-      "sr_RS@latin Srpski",
-      "sv Svenska",
-      "ta தமிழ்",
-      "tg Тоҷикӣ",
-      "tr Türkçe",
-      "uk Українська",
-      "vi Tiếng Việt",
-      "zh_CN 中文",
-      "zh_TW 中文",
+"af Afrikaans",
+"ar \330\247\331\204\330\271\330\261\330\250\331\212\330\251",
+"be \320\221\320\265\320\273\320\260\321\200\321\203\321\201\320\272\320\260\321\217",
+"bg \320\221\321\212\320\273\320\263\320\260\321\200\321\201\320\272\320\270",
+"bn \340\246\254\340\246\276\340\246\202\340\246\262\340\246\276",
+"bs Bosanski",
+"ca Catal\303\240",
+"ca_ES@valencia Valenci\303\240",
+"cs \304\214e\305\241tina",
+"cy Cymraeg",
+"da Dansk",
+"de Deutsch",
+"el \316\225\316\273\316\273\316\267\316\275\316\271\316\272\316\254",
+"en English",
+"es Espa\303\261ol",
+"eu Euskara",
+"eu_ES Euskara (Espainiako)",
+"fa \331\201\330\247\330\261\330\263\333\214",
+"fi Suomi",
+"fr Fran\303\247ais",
+"ga Gaeilge",
+"gl Galego",
+"he \327\242\327\221\327\250\327\231\327\252",
+"hi \340\244\271\340\244\277\340\244\250\340\245\215\340\244\246\340\245\200",
+"hr Hrvatski",
+"hu Magyar",
+"hy \325\200\325\241\325\265\325\245\326\200\325\245\325\266",
+"id Bahasa Indonesia",
+"it Italiano",
+"ja \346\227\245\346\234\254\350\252\236",
+"ka \341\203\245\341\203\220\341\203\240\341\203\227\341\203\243\341\203\232\341\203\230",
+"km \341\236\201\341\237\201\341\236\230\341\236\232\341\236\227\341\236\266\341\236\237\341\236\266",
+"ko \355\225\234\352\265\255\354\226\264",
+"lt Lietuvi\305\263",
+"mk \320\234\320\260\320\272\320\265\320\264\320\276\320\275\321\201\320\272\320\270",
+"my \341\200\231\341\200\274\341\200\224\341\200\272\341\200\231\341\200\254\341\200\205\341\200\254",
+"nb Norsk",
+"nl Nederlands",
+"oc Occitan",
+"pl Polski",
+"pt Portugu\303\252s",
+"pt_BR Portugu\303\252s (Brasil)",
+"ro Rom\303\242n\304\203",
+"ru \320\240\321\203\321\201\321\201\320\272\320\270\320\271",
+"sk Sloven\304\215ina",
+"sl Sloven\305\241\304\215ina",
+"sr_RS \320\241\321\200\320\277\321\201\320\272\320\270",
+"sr_RS@latin Srpski",
+"sv Svenska",
+"ta \340\256\244\340\256\256\340\256\277\340\256\264\340\257\215",
+"tg \320\242\320\276\322\267\320\270\320\272\323\243",
+"tr T\303\274rk\303\247e",
+"uk \320\243\320\272\321\200\320\260\321\227\320\275\321\201\321\214\320\272\320\260",
+"vi Ti\341\272\277ng Vi\341\273\207t",
+"zh_CN \344\270\255\346\226\207",
+"zh_TW \344\270\255\346\226\207",
    };
 
    wxArrayString tempNames;