cast between incompatible function types in QIBaseDriver

g++ -c -pipe -g -Og -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -Werror -Wno-error=cpp -Wno-error=deprecated-declarations -Wno-error=strict-overflow -Wno-error=implicit-fallthrough -D_REENTRANT -fPIC -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_PLUGIN -DQT_GUI_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -I../../../../include/QtGui/5.11.0 -I../../../../include/QtGui/5.11.0/QtGui -I../../../../include -I../../../../include/QtGui -I../../../../include/QtDBus -I../../../../include/QtCore/5.11.0 -I../../../../include/QtCore/5.11.0/QtCore -I../../../../include/QtCore -I.moc -isystem /usr/include/libdrm -I../../../../mkspecs/linux-g++ -o .obj/qibustypes.o qibustypes.cpp
qsql_ibase.cpp: In member function ‘bool QIBaseDriverPrivate::isError(const char*, QSqlError::ErrorType)’:
qsql_ibase.cpp:326:48: warning: ‘QSqlError::QSqlError(const QString&, const QString&, QSqlError::ErrorType, int)’ is deprecated [-Wdeprecated-declarations]
                         imsg, typ, int(sqlcode)));
                                                ^
In file included from ../../../../include/QtSql/qsqlerror.h:1,
                 from qsql_ibase.cpp:44:
../../../../include/QtSql/../../src/sql/kernel/qsqlerror.h:61:19: note: declared here
     QT_DEPRECATED QSqlError(const QString &driverText, const QString &databaseText,
                   ^~~~~~~~~
qsql_ibase.cpp: In member function ‘virtual bool QIBaseDriver::subscribeToNotification(const QString&)’:
qsql_ibase.cpp:1847:40: error: cast between incompatible function types from ‘void (* (*)(char*, ISC_USHORT, const ISC_UCHAR*))(void*, ISC_USHORT, const ISC_UCHAR*)’ {aka ‘void (* (*)(char*, short unsigned int, const unsigned char*))(void*, short unsigned int, const unsigned char*)’} to ‘ISC_EVENT_CALLBACK’ {aka ‘void (*)(void*, short unsigned int, const unsigned char*)’} [-Werror=cast-function-type]
                    (ISC_EVENT_CALLBACK)qEventCallback,
                                        ^~~~~~~~~~~~~~
qsql_ibase.cpp: In member function ‘void QIBaseDriver::qHandleEventNotification(void*)’:
qsql_ibase.cpp:1927:57: error: cast between incompatible function types from ‘void (* (*)(char*, ISC_USHORT, const ISC_UCHAR*))(void*, ISC_USHORT, const ISC_UCHAR*)’ {aka ‘void (* (*)(char*, short unsigned int, const unsigned char*))(void*, short unsigned int, const unsigned char*)’} to ‘ISC_EVENT_CALLBACK’ {aka ‘void (*)(void*, short unsigned int, const unsigned char*)’} [-Werror=cast-function-type]
                                     (ISC_EVENT_CALLBACK)qEventCallback,
                                                         ^~~~~~~~~~~~~~