[package] qt/6: QODBCDriverPlugin has two component

[fnadeau]

Description

QODBCDriverPlugin has two component:

-- Conan: Component target declared 'qt::QODBCDriverPlugin'
-- Conan: Component target declared 'Qt6::QODBCDriverPlugin'

which mean that in your code you'll have to do something like:

target_link_libraries(${PROJECT_NAME} PRIVATE Qt6::QODBCDriverPlugin qt::QODBCDriverPlugin)

This can be observed in recipes/qt/6.x.x/test_package/build/gcc-14-x86_64-gnu20-release/generators/Qt6-release-x86_64-data.cmake when building the package.

For linux
qt::QODBCDriverPlugin expose lib ODBC::ODBC
For windows
qt::QODBCDriverPlugin expose lib odbc32

for both
Qt6::QODBCDriverPlugin expose lib Qt6::Core

---

Code in fault

        if self.options.with_odbc:
            _create_plugin("QODBCDriverPlugin", "qsqlodbc", "sqldrivers", [])
            if self.settings.os != "Windows":
                self.cpp_info.components["QODBCDriverPlugin"].requires.append("odbc::odbc")
            else:
                self.cpp_info.components["QODBCDriverPlugin"].system_libs.append("odbc32")

        def _create_plugin(pluginname, libname, plugintype, requires):
            componentname = f"qt{pluginname}"
            ...
            self.cpp_info.components[componentname].libs = [libname + libsuffix]

When appending the required lib (either obdc::obdc or obdc32), components name is lack prefix qt used by _create_plugin

All other instances of libs append uses the prefix qt, ex:

self.cpp_info.components["qtPrintSupport"].system_libs.append("winspool")

Easiest fix would be to just at the prefix qt to QODBCDriverPlugin when adding requirements outside of _create_plugin().

Package and Environment Details

• Package Name/Version: qt/6
• Operating System+version: Linux ArchLinux
• Compiler+version: GCC 14
• Conan version: conan 2.13.0
• Python version: Python 3.13.2

Conan profile

Host profile:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu20
compiler.libcxx=libstdc++11
compiler.version=14
os=Linux
[conf]

Build profile:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu20
compiler.libcxx=libstdc++11
compiler.version=14
os=Linux
[conf]

Steps to reproduce

conan create --version 6.7.3 recipes/qt/6.x.x -c:a qt/6*:tools.cmake.cmaketoolchain:extra_variables="{'CMAKE_DISABLE_FIND_PACKAGE_Libb2':'ON'}

note I'm using CMAKE_DISABLE_FIND_PACKAGE_Libb2 because I have the lib on my system, see #26551

Logs

Partial log, just before the test package is build. Alternatively, anytime Qt is used by conan by any other project.

Click to expand log

-- Using Conan toolchain: /home/fnadeau/src/conan-center-index/recipes/qt/6.x.x/test_package/build/gcc-14-x86_64-gnu20-release/generators/conan_toolchain.cmake
-- Conan toolchain: Defining architecture flag: -m64
-- Conan toolchain: C++ Standard 20 with extensions ON
-- The CXX compiler identification is GNU 14.2.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Component target declared 'Qt6::Core'
-- Conan: Component target declared 'Qt6::Platform'
-- Conan: Component target declared 'qt::QODBCDriverPlugin'
-- Conan: Component target declared 'Qt6::Gui'
-- Conan: Component target declared 'Qt6::XcbQpaPrivate'
-- Conan: Component target declared 'Qt6::QSQLiteDriverPlugin'
-- Conan: Component target declared 'Qt6::QPSQLDriverPlugin'
-- Conan: Component target declared 'Qt6::QODBCDriverPlugin'
-- Conan: Component target declared 'Qt6::Network'
-- Conan: Component target declared 'Qt6::Sql'
-- Conan: Component target declared 'Qt6::Test'
-- Conan: Component target declared 'Qt6::Concurrent'
-- Conan: Component target declared 'Qt6::Xml'
-- Conan: Component target declared 'Qt6::QXcbIntegrationPlugin'
-- Conan: Component target declared 'Qt6::QGifPlugin'
-- Conan: Component target declared 'Qt6::QIcoPlugin'
-- Conan: Component target declared 'Qt6::Widgets'
-- Conan: Component target declared 'Qt6::OpenGL'
-- Conan: Component target declared 'Qt6::PrintSupport'
-- Conan: Component target declared 'Qt6::OpenGLWidgets'
-- Conan: Target declared 'qt::qt'
-- Conan: Component target declared 'OpenSSL::Crypto'
-- Conan: Component target declared 'OpenSSL::SSL'
-- Conan: Target declared 'openssl::openssl'