There is an implicit conversion operator from QByteArray to `const char *`, which is dangerous API as `const char *` is a very common type in e.g. C Library system native methods on Linux. And really no type should be implicitly convertible to `const char *`.

This operator can be disabled by defining The QT_NO_CAST_FROM_BYTEARRAY macro, so the goal is to fix build issues when that macro is defined.