diff -Naur qt-x11-opensource-src-4.5.0-orig/src/corelib/codecs/qiconvcodec.cpp qt-x11-opensource-src-4.5.0/src/corelib/codecs/qiconvcodec.cpp
--- qt-x11-opensource-src-4.5.0-orig/src/corelib/codecs/qiconvcodec.cpp	2009-02-26 00:09:21.000000000 +0300
+++ qt-x11-opensource-src-4.5.0/src/corelib/codecs/qiconvcodec.cpp	2009-03-07 23:02:26.000000000 +0300
@@ -101,6 +101,12 @@
         fprintf(stderr, "QIconvCodec::convertToUnicode: internal error, UTF-16 codec not found\n");
         utf16Codec = reinterpret_cast<QTextCodec *>(~0);
     }
+#ifdef Q_OS_UNIX
+    if (!qt_locale_initialized) {
+        setlocale(LC_ALL, "");                // use correct char set mapping
+        qt_locale_initialized = true;
+    }
+#endif
 #if defined(Q_OS_MAC)
     if (ptr_iconv_open == 0) {
         QLibrary libiconv(QLatin1String("/usr/lib/libiconv"));