diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/corelib/kernel/qcoreapplication.cpp | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp index fe3aa454ab..0c5e6cdb4a 100644 --- a/src/corelib/kernel/qcoreapplication.cpp +++ b/src/corelib/kernel/qcoreapplication.cpp @@ -112,6 +112,7 @@ #ifdef Q_OS_UNIX # include <locale.h> +# include <langinfo.h> # include <unistd.h> # include <sys/types.h> #endif @@ -338,9 +339,6 @@ void Q_CORE_EXPORT qt_call_post_routines() } -// initialized in qcoreapplication and in qtextstream autotest when setlocale is called. -static bool qt_locale_initialized = false; - #ifndef QT_NO_QOBJECT // app starting up if false @@ -590,11 +588,45 @@ QString qAppName() void QCoreApplicationPrivate::initLocale() { +#if defined(Q_OS_UNIX) && !defined(QT_BOOTSTRAPPED) + static bool qt_locale_initialized = false; if (qt_locale_initialized) return; qt_locale_initialized = true; -#if defined(Q_OS_UNIX) && !defined(QT_BOOTSTRAPPED) - setlocale(LC_ALL, ""); + +#ifdef Q_OS_ANDROID + // Android's Bionic didn't get nl_langinfo until NDK 15 (Android 8.0), + // which is too new for Qt, so we just assume it's always UTF-8. + auto nl_langinfo = [](int) { return "UTF-8"; }; +#endif + + const char *locale = setlocale(LC_ALL, ""); + const char *codec = nl_langinfo(CODESET); + if (Q_UNLIKELY(strcmp(codec, "UTF-8") != 0 && strcmp(codec, "utf8") != 0)) { + QByteArray oldLocale = locale; + QByteArray newLocale = setlocale(LC_CTYPE, nullptr); + if (int dot = newLocale.indexOf('.'); dot != -1) + newLocale.truncate(dot); // remove encoding, if any + if (int at = newLocale.indexOf('@'); at != -1) + newLocale.truncate(at); // remove variant, as the old de_DE@euro + newLocale += ".UTF-8"; + newLocale = setlocale(LC_CTYPE, newLocale); + + // if locale doesn't exist, try some fallbacks +# ifdef Q_OS_DARWIN + if (newLocale.isEmpty()) + newLocale = setlocale(LC_CTYPE, "UTF-8"); +# endif + if (newLocale.isEmpty()) + newLocale = setlocale(LC_CTYPE, "C.UTF-8"); + if (newLocale.isEmpty()) + newLocale = setlocale(LC_CTYPE, "C.utf8"); + + qWarning("Detected system locale encoding (%s, locale \"%s\") is not UTF-8.\n" + "Qt shall use a UTF-8 locale (\"%s\") instead. If this causes problems,\n" + "reconfigure your locale. See the locale(1) manual for more information.", + codec, oldLocale.constData(), newLocale.constData()); + } #endif } |