building Qt6 OCI driver for MacOS Monterey

Albert M.

Hey guys, I'm trying to build a Qt6 OCI driver on mac OS Monterey from the Terminal shell as follows:

COMMAND:
qt-cmake ~/Qt/6.3.2/macos/plugins/sqldrivers -DOracle_INCLUDE_DIR=~/oracle/instantclient-19_8/sdk/include -DOracle_LIBRARY=~/oracle/instantclient-19_8/libclntsh.dylib

RESULT:
QMake is asking for a CMakeLists.txt

CMake Error: The source directory "/Users/myuser/Qt/6.3.2/macos/plugins/sqldrivers" does not appear to contain CMakeLists.txt

Question - How should I create the CMakeLists.txt?

SGaist

Hi and welcome to devnet,

You don't. Download the Qt sources. You are trying to build the driver in your actual installation.

Albert M.

Thanks!
So, I have QT/Sources downloaded now.

What should I do next?

Albert M.

@SGaist - Ok, I finally got the command line below to work.

qt-cmake -G Ninja ~/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers  -DCMAKE_INSTALL_PREFIX=~/Qt/6.3.2/gcc_64 -DOracle_INCLUDE_DIR=~/oracle/instantclient-19_8/sdk/include -DOracle_LIBRARY=~/oracle/instantclient-19_8/libclntsh.dylib

Issue: When I ran the next commans, I get an error

- cmake --build .

However, when I ran this command I get an exception

Exception

FAILED: oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
    virtual bool hasFeature(DriverFeature f) const = 0;

Can you please assist?

Albert M.

@SGaist any update? I really need help here.

SGaist

You did not post enough of the build error.

Albert M.

➜ ```
sqloci cmake --build .


[  9%] Automatic MOC for target QOCIDriverPlugin
[  9%] Built target QOCIDriverPlugin_autogen
[ 18%] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/mocs_compilation.cpp:2:
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/moc_qsql_oci_p.cpp:10:
/Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/../../../../Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
    bool hasFeature(DriverFeature f) const;
         ^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
    virtual bool hasFeature(DriverFeature f) const = 0;
                 ^
1 error generated.
make[2]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o] Error 1
make[1]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/all] Error 2
make: *** [all] Error 2

Albert M.

@SGaist - please see the attached error

[ 9%] Automatic MOC for target QOCIDriverPlugin
[ 9%] Built target QOCIDriverPlugin_autogen
[ 18%] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/mocs_compilation.cpp:2:
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/moc_qsql_oci_p.cpp:10:
/Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/../../../../Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
bool hasFeature(DriverFeature f) const;
^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
virtual bool hasFeature(DriverFeature f) const = 0;
^
1 error generated.
make[2]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o] Error 1
make[1]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/all] Error 2
make: *** [all] Error 2

Albert M.

hi @AndyS , @JKSH can you please assist?

After running the cmake build command, I get

cmake --build .

ERROR EXCEPTION
[ 9%] Automatic MOC for target QOCIDriverPlugin
[ 9%] Built target QOCIDriverPlugin_autogen
[ 18%] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/mocs_compilation.cpp:2:
In file included from /Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/moc_qsql_oci_p.cpp:10:
/Users/myuser/sqloci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/../../../../Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
bool hasFeature(DriverFeature f) const;
^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
virtual bool hasFeature(DriverFeature f) const = 0;
^
1 error generated.
make[2]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o] Error 1
make[1]: *** [oci/CMakeFiles/QOCIDriverPlugin.dir/all] Error 2
make: *** [all] Error 2

Albert M.

@SGaist , @AndyS , @JKSH - Please find the entire exceptions when running the script to build the libqsqloci.dylib
Any help would be greatly appreciated. Thanks for your help!

Exception
➜ myoci qt-cmake -G Ninja /Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=/Users/myuser/Qt/6.3.2/gcc_64 -DOracle_INCLUDE_DIR="/Users/myuser/oracle/instantclient-19_8" -DOracle_LIBRARY="/Users/myuser/oracle/instantclient-19_8/libclntsh.dylib" -DCMAKE_MAKE_PROGRAM="/Users/myuser/Qt/Tools/Ninja/ninja"
-- The CXX compiler identification is AppleClang 14.0.0.14000029
-- The C compiler identification is AppleClang 14.0.0.14000029
-- The ASM compiler identification is Clang with GNU-like command-line
-- Found assembler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Performing Test HAVE_STDATOMIC
-- Performing Test HAVE_STDATOMIC - Success
-- Found WrapAtomic: TRUE

-- Configuration summary shown below. It has also been written to /Users/myuser/myoci/config.summary
-- Configure with --log-level=STATUS or higher to increase CMake's message verbosity. The log level does not persist across reconfigurations.

-- Configure summary:

Qt Sql Drivers:
DB2 (IBM) .............................. no
InterBase .............................. no
MySql .................................. no
OCI (Oracle) ........................... yes
ODBC ................................... no
PostgreSQL ............................. no
SQLite ................................. yes
Using system provided SQLite ......... no

-- Configuring done
-- Generating done
-- Build files have been written to: /Users/myuser/myoci
➜ myoci cmake --build .
[4/11] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o
FAILED: oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o
/usr/bin/clang++ -DGL_SILENCE_DEPRECATION -DQOCIDriverPlugin_EXPORTS -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DEPRECATED_WARNINGS_SINCE=0x060000 -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_PLUGIN -DQT_SQL_LIB -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/include -I/Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci -I/Users/myuser/myoci/oci -I/Users/myuser/myoci/include -isystem /Users/myuser/oracle/instantclient-19_8 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers -iframework /Users/myuser/Qt/6.3.2/macos/lib -isystem /Users/myuser/Qt/6.3.2/macos/mkspecs/macx-clang -isystem /Users/myuser/Qt/6.3.2/macos/include -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2/QtCore -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2/QtSql -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers -g -DNDEBUG -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -mmacosx-version-min=10.14 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -Werror "-Wno-error=#warnings" -Wno-error=deprecated-declarations -fapplication-extension -std=c++17 -MD -MT oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o -MF oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o.d -o oci/CMakeFiles/QOCIDriverPlugin.dir/QOCIDriverPlugin_autogen/mocs_compilation.cpp.o -c /Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/mocs_compilation.cpp
In file included from /Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/mocs_compilation.cpp:2:
In file included from /Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/moc_qsql_oci_p.cpp:10:
/Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/EWIEGA46WW/../../../../Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
bool hasFeature(DriverFeature f) const;
^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
virtual bool hasFeature(DriverFeature f) const = 0;
^
1 error generated.
[5/11] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o
FAILED: oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o
/usr/bin/clang++ -DGL_SILENCE_DEPRECATION -DQOCIDriverPlugin_EXPORTS -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DEPRECATED_WARNINGS_SINCE=0x060000 -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_PLUGIN -DQT_SQL_LIB -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/include -I/Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci -I/Users/myuser/myoci/oci -I/Users/myuser/myoci/include -isystem /Users/myuser/oracle/instantclient-19_8 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers -iframework /Users/myuser/Qt/6.3.2/macos/lib -isystem /Users/myuser/Qt/6.3.2/macos/mkspecs/macx-clang -isystem /Users/myuser/Qt/6.3.2/macos/include -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2/QtCore -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2/QtSql -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers -g -DNDEBUG -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -mmacosx-version-min=10.14 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -Werror "-Wno-error=#warnings" -Wno-error=deprecated-declarations -fapplication-extension -std=c++17 -MD -MT oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o -MF oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o.d -o oci/CMakeFiles/QOCIDriverPlugin.dir/main.cpp.o -c /Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/main.cpp
In file included from /Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/main.cpp:42:
/Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
bool hasFeature(DriverFeature f) const;
^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
virtual bool hasFeature(DriverFeature f) const = 0;
^
1 error generated.
[6/11] Building CXX object oci/CMakeFiles/QOCIDriverPlugin.dir/qsql_oci.cpp.o
FAILED: oci/CMakeFiles/QOCIDriverPlugin.dir/qsql_oci.cpp.o
/usr/bin/clang++ -DGL_SILENCE_DEPRECATION -DQOCIDriverPlugin_EXPORTS -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DEPRECATED_WARNINGS_SINCE=0x060000 -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_PLUGIN -DQT_SQL_LIB -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/Users/myuser/myoci/oci/QOCIDriverPlugin_autogen/include -I/Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci -I/Users/myuser/myoci/oci -I/Users/myuser/myoci/include -isystem /Users/myuser/oracle/instantclient-19_8 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers -iframework /Users/myuser/Qt/6.3.2/macos/lib -isystem /Users/myuser/Qt/6.3.2/macos/mkspecs/macx-clang -isystem /Users/myuser/Qt/6.3.2/macos/include -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtCore.framework/Headers/6.3.2/QtCore -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2 -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/6.3.2/QtSql -isystem /Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers -g -DNDEBUG -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -mmacosx-version-min=10.14 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -Werror "-Wno-error=#warnings" -Wno-error=deprecated-declarations -fapplication-extension -std=c++17 -MD -MT oci/CMakeFiles/QOCIDriverPlugin.dir/qsql_oci.cpp.o -MF oci/CMakeFiles/QOCIDriverPlugin.dir/qsql_oci.cpp.o.d -o oci/CMakeFiles/QOCIDriverPlugin.dir/qsql_oci.cpp.o -c /Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci.cpp
In file included from /Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci.cpp:40:
/Users/myuser/Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]
bool hasFeature(DriverFeature f) const;
^
/Users/myuser/Qt/6.3.2/macos/lib/QtSql.framework/Headers/qsqldriver.h:112:18: note: overridden virtual function is here
virtual bool hasFeature(DriverFeature f) const = 0;
^
1 error generated.
[8/11] Building CXX object sqlite/CMakeFiles/QSQLiteDriverPlugin.dir/qsql_sqlite.cpp.o
[9/11] Building C object sqlite/CMakeFiles/QSQLiteDriverPlugin.dir/Users/myuser/Qt/6.3.2/Src/qtbase/src/3rdparty/sqlite/sqlite3.c.o
ninja: build stopped: subcommand failed.
➜ myoci
➜ myoci cmake --install .
-- Install configuration: "RelWithDebInfo"
-- Installing: /Users/myuser/Qt/6.3.2/gcc_64/lib/cmake/Qt6Sql/Qt6QOCIDriverPluginConfig.cmake
-- Installing: /Users/myuser/Qt/6.3.2/gcc_64/lib/cmake/Qt6Sql/Qt6QOCIDriverPluginConfigVersion.cmake
-- Installing: /Users/myuser/Qt/6.3.2/gcc_64/lib/cmake/Qt6Sql/Qt6QOCIDriverPluginConfigVersionImpl.cmake
CMake Error at oci/cmake_install.cmake:49 (file):
file INSTALL cannot find
"/Users/myuser/myoci/plugins/sqldrivers/libqsqloci.dylib": No such
file or directory.
Call Stack (most recent call first):
cmake_install.cmake:42 (include)

JKSH

@Albert-M said in building Qt6 OCI driver for MacOS Monterey:

Qt/6.3.2/Src/qtbase/src/plugins/sqldrivers/oci/qsql_oci_p.h:81:10: error: 'hasFeature' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override]

Your compiler is refusing to proceed because hasFeature() does not have the override keyword applied. So the fix is to modify the header and mark it as override.

Please open a bug report for this at https://bugreports.qt.io

Albert M.

@JKSH said in building Qt6 OCI driver for MacOS Monterey:

overrides a member function but is not marked 'override'

@JKSH - Thanks you so much! The issue is now resolved.

Resolution
I added the override to the syntax and recompiled !
Screen Shot 2022-10-12 at 2.17.24 PM.png
![alt text]

Christian Ehrlicher

@JKSH said in building Qt6 OCI driver for MacOS Monterey:

Please open a bug report for this at https://bugreports.qt.io

No longer needed: https://codereview.qt-project.org/c/qt/qtbase/+/437946

Albert M.

Thank you @JKSH !!