https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80445
--- Comment #4 from Anton Kochkov <anton.kochkov at gmail dot com> --- here is /usr/include/qt5/QtCore/qbytearray.h: #ifndef QBYTEARRAY_H #define QBYTEARRAY_H #include <QtCore/qrefcount.h> #include <QtCore/qnamespace.h> #include <QtCore/qarraydata.h> #include <stdlib.h> #include <string.h> #include <stdarg.h> #include <string> // <-- line 52 #include <iterator> Seem no namespace tricks
