Details
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Bug
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Resolution: Done
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Not Evaluated
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6.5.0
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None
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Windows 11, Visual Studio 2019, MSVC 16.9
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All
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431a028c187dcd7ee885dcf272470f435977ae2c (6.5.1), cdbfaf1b65538a1cdaf4cf0def2ac7728f11c945 (dev)
Description
If you build Qt 6.5 with OCI Plugin (Oracle SQL) the build fails. The problem is the definition QT_NO_CAST_FROM_ASCII for this Plugin. The plugins Code uses QString::QString(char const*) which is defined private via QT_NO_CAST_FROM_ASCII.
In qtbase/src/plugins/sqldrivers/oci/CMakeLists.txt:
# Copyright (C) 2022 The Qt Company Ltd. # SPDX-License-Identifier: BSD-3-Clause ##################################################################### ## QOCIDriverPlugin Plugin: ##################################################################### qt_internal_add_plugin(QOCIDriverPlugin OUTPUT_NAME qsqloci PLUGIN_TYPE sqldrivers SOURCES main.cpp qsql_oci.cpp qsql_oci_p.h DEFINES QT_NO_CAST_FROM_ASCII # This undefines a QString constructor which is used durring build! QT_NO_CAST_TO_ASCII LIBRARIES Oracle::OCI Qt::Core Qt::CorePrivate Qt::SqlPrivate
The build succeeds if I remove this line.
Otherwise I get the MSVC error message:
C:\Temp\build\src\qt\qt-everywhere-src-6.5.0\qtbase\src\plugins\sqldrivers\oci\qsql_oci.cpp(144): error C2248: "QString::QString": Kein Zugriff auf private Member, dessen Deklaration in der QString-Klasse erfolgte. C:\Temp\build\build\qt-debug\qtbase\include\QtCore\../../../../../src/qt/qt-everywhere-src-6.5.0/qtbase/src/corelib/text/qstring.h(1154): note: Siehe Deklaration von "QString::QString" C:\Temp\build\build\qt-debug\qtbase\include\QtSql\../../../../../src/qt/qt-everywhere-src-6.5.0/qtbase/src/sql/kernel/qsqlresult.h(17): note: Siehe Deklaration von "QString" C:\Temp\build\src\qt\qt-everywhere-src-6.5.0\qtbase\src\plugins\sqldrivers\oci\qsql_oci.cpp(172): warning C4996: 'QDateTime::QDateTime': Pass QTimeZone instead ninja: build stopped: subcommand failed.
From qtbase/src/plugins/sqldrivers/oci/qsql_oci.cpp 143-145:
// Zone in +hh:mm format
const QString timeZone = dt.toString("ttt"); // Use QString::QString(char const*) which is private through QT_NO_CAST_FROM_ASCII
const OraText *tz = reinterpret_cast<const OraText *>(timeZone.utf16());
I build the Plugin against Oracle instantclient-sdk-nt 19.18.0.0.0 (https://download.oracle.com/otn_software/nt/instantclient/1918000/instantclient-sdk-nt-19.18.0.0.0dbru.zip) but the version shouldn't be releated to this bug.