5b07f14a4f
After the update to the CMake based build system the ability to generate pkgconfig files, like it was with QMake, was lost. This patch adds pkgconfig generation again via a new internal command named qt_internal_export_pkg_config_file. The functionality of this command consists in checking if the target is internal. Then gets the compile definitions. It performs a search for dependencies that is somewhat similar to qt_get_direct_module_dependencies, although it won't recurse down for more deps. Each dependency is then again, checked if it's internal or has a public interface. Later these deps get deduplicated and lastly a pkgconfig file is filled. The resulting pkgconfig files of many of the Qt6 packages were validated via invocations of `pkg-config --validate` and `pkg-config --simulate` commands and later used to build local projects plus tests that use the pkg-config provided details at compilation time. Although it has some limitations, with qt_internal_add_qml_module if it specifies non-public deps these won't be listed and with non-Qt requirements, notably in static builds, not being appended to the PkgConfig file. Task-number: QTBUG-86080 Change-Id: I0690bb3ca729eec328500f227261db9b7e7628f6 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
72 lines
2.7 KiB
CMake
72 lines
2.7 KiB
CMake
# Defines the public Qt::Platform target, which serves as a dependency for all internal Qt target
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# as well as user projects consuming Qt.
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function(qt_internal_setup_public_platform_target)
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qt_internal_get_platform_definition_include_dir(
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install_interface_definition_dir
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build_interface_definition_dir
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)
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## QtPlatform Target:
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add_library(Platform INTERFACE)
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add_library(Qt::Platform ALIAS Platform)
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add_library(${INSTALL_CMAKE_NAMESPACE}::Platform ALIAS Platform)
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target_include_directories(Platform
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INTERFACE
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$<BUILD_INTERFACE:${build_interface_definition_dir}>
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$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>
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$<INSTALL_INTERFACE:${install_interface_definition_dir}>
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$<INSTALL_INTERFACE:${INSTALL_INCLUDEDIR}>
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)
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target_compile_definitions(Platform INTERFACE ${QT_PLATFORM_DEFINITIONS})
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# When building on android we need to link against the logging library
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# in order to satisfy linker dependencies. Both of these libraries are part of
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# the NDK.
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if (ANDROID)
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target_link_libraries(Platform INTERFACE log)
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endif()
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if (QT_FEATURE_stdlib_libcpp)
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target_compile_options(Platform INTERFACE "-stdlib=libc++")
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target_link_options(Platform INTERFACE "-stdlib=libc++")
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endif()
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qt_set_msvc_cplusplus_options(Platform INTERFACE)
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# Propagate minimum C++ 17 via Platform to Qt consumers (apps), after the global features
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# are computed.
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qt_set_language_standards_interface_compile_features(Platform)
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# By default enable utf8 sources for both Qt and Qt consumers. Can be opted out.
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qt_enable_utf8_sources(Platform)
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# By default enable unicode on WIN32 platforms for both Qt and Qt consumers. Can be opted out.
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qt_internal_enable_unicode_defines(Platform)
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# Generate a pkgconfig for Qt::Platform.
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qt_internal_generate_pkg_config_file(Platform)
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endfunction()
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function(qt_internal_get_platform_definition_include_dir install_interface build_interface)
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# Used by consumers of prefix builds via INSTALL_INTERFACE (relative path).
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set(${install_interface} "${INSTALL_MKSPECSDIR}/${QT_QMAKE_TARGET_MKSPEC}" PARENT_SCOPE)
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# Used by qtbase in prefix builds via BUILD_INTERFACE
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set(build_interface_base_dir
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"${CMAKE_CURRENT_LIST_DIR}/../mkspecs"
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)
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# Used by qtbase and consumers in non-prefix builds via BUILD_INTERFACE
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if(NOT QT_WILL_INSTALL)
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set(build_interface_base_dir
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"${QT_BUILD_DIR}/${INSTALL_MKSPECSDIR}"
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)
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endif()
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get_filename_component(build_interface_dir
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"${build_interface_base_dir}/${QT_QMAKE_TARGET_MKSPEC}"
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ABSOLUTE
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)
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set(${build_interface} "${build_interface_dir}" PARENT_SCOPE)
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endfunction()
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