Memory Leak in QDir::canonicalPath ?

valgrind report:

290 (96 direct, 194 indirect) bytes in 1 blocks are definitely lost in loss record 1,641 of 2,096
at 0xC283: malloc (vg_replace_malloc.c:274)
by 0x9BBF04: operator new(unsigned long) (in /usr/lib/libstdc++.6.0.9.dylib)
by 0x84296C8: QLibraryPrivate::findOrCreate(QString const&, QString const&) (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x8429C87: QLibrary::setFileName(QString const&) (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x8429D26: QLibrary::QLibrary(QString const&, QObject*) (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x847CE86: QIconvCodec::QIconvCodec() (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x8477613: setup() (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x84776DA: QTextCodec::codecForLocale() (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x8379C28: QString::fromLocal8Bit(char const*, int) (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x840D197: QFileSystemEngine::canonicalName(QFileSystemEntry const&, QFileSystemMetaData&) (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)
by 0x83AA143: QDir::canonicalPath() const (in .../app.app/Contents/Frameworks/QtCore.framework/Versions/4/QtCore)