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37da6af17d
When a dependency was already found, find_dependency did not search it again. While this works in basic case, it does not when there are components as the check does not take components into account. Given the fact that there is no documentation about this optimization and that the correct implementation is not trivial as it would require changes in find_package to have the list of components already found we always search dependencies. Fix #17583.
64 lines
2.1 KiB
CMake
64 lines
2.1 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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CMakeFindDependencyMacro
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-------------------------
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.. command:: find_dependency
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The ``find_dependency()`` macro wraps a :command:`find_package` call for
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a package dependency::
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find_dependency(<dep> [...])
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It is designed to be used in a
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:ref:`Package Configuration File <Config File Packages>`
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(``<PackageName>Config.cmake``). ``find_dependency`` forwards the correct
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parameters for ``QUIET`` and ``REQUIRED`` which were passed to
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the original :command:`find_package` call. Any additional arguments
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specified are forwarded to :command:`find_package`.
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If the dependency could not be found it sets an informative diagnostic
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message and calls :command:`return` to end processing of the calling
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package configuration file and return to the :command:`find_package`
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command that loaded it.
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.. note::
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The call to :command:`return` makes this macro unsuitable to call
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from :ref:`Find Modules`.
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#]=======================================================================]
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macro(find_dependency dep)
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set(cmake_fd_quiet_arg)
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if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
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set(cmake_fd_quiet_arg QUIET)
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endif()
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set(cmake_fd_required_arg)
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if(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
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set(cmake_fd_required_arg REQUIRED)
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endif()
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get_property(cmake_fd_alreadyTransitive GLOBAL PROPERTY
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_CMAKE_${dep}_TRANSITIVE_DEPENDENCY
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)
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find_package(${dep} ${ARGN}
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${cmake_fd_quiet_arg}
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${cmake_fd_required_arg}
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)
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if(NOT DEFINED cmake_fd_alreadyTransitive OR cmake_fd_alreadyTransitive)
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set_property(GLOBAL PROPERTY _CMAKE_${dep}_TRANSITIVE_DEPENDENCY TRUE)
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endif()
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if (NOT ${dep}_FOUND)
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set(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE "${CMAKE_FIND_PACKAGE_NAME} could not be found because dependency ${dep} could not be found.")
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set(${CMAKE_FIND_PACKAGE_NAME}_FOUND False)
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return()
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endif()
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set(cmake_fd_required_arg)
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set(cmake_fd_quiet_arg)
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endmacro()
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