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94 lines
3.8 KiB
CMake
94 lines
3.8 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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# copy_if_different works incorrect in Windows if file size if bigger than 2GB.
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# See https://gitlab.kitware.com/cmake/cmake/-/issues/23052 and QTBUG-99491 for details.
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function(_qt_internal_copy_file_if_different_command out_var src_file dst_file)
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# The CMake version higher than 3.23 doesn't contain the issue
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if(CMAKE_HOST_WIN32 AND CMAKE_VERSION VERSION_LESS 3.23)
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set(${out_var} "${CMAKE_COMMAND}"
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"-DSRC_FILE_PATH=${src_file}"
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"-DDST_FILE_PATH=${dst_file}"
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-P "${_qt_6_config_cmake_dir}/QtCopyFileIfDifferent.cmake"
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PARENT_SCOPE
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)
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else()
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set(${out_var} "${CMAKE_COMMAND}"
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-E copy_if_different
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"${src_file}"
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"${dst_file}"
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PARENT_SCOPE
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)
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endif()
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endfunction()
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# The function checks if add_custom_command has the support of the DEPFILE argument.
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function(_qt_internal_check_depfile_support out_var)
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if(CMAKE_GENERATOR MATCHES "Ninja" OR
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CMAKE_VERSION VERSION_GREATER_EQUAL 3.20 AND CMAKE_GENERATOR MATCHES "Makefiles"
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OR CMAKE_VERSION VERSION_GREATER_EQUAL 3.21
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AND (CMAKE_GENERATOR MATCHES "Xcode"
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OR CMAKE_GENERATOR MATCHES "Visual Studio ([0-9]+)" AND CMAKE_MATCH_1 GREATER_EQUAL 12))
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set(${out_var} TRUE)
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else()
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set(${out_var} FALSE)
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endif()
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set(${out_var} "${${out_var}}" PARENT_SCOPE)
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endfunction()
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# Collect additional package prefix paths to look for Qt packages, both from command line and the
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# env variable ${prefixes_var}. The result is stored in ${out_var} and is a list of paths ending
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# with "/lib/cmake".
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function(__qt_internal_collect_additional_prefix_paths out_var prefixes_var)
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if(DEFINED "${out_var}")
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return()
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endif()
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set(additional_packages_prefix_paths "")
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set(additional_packages_prefixes "")
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if(${prefixes_var})
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list(APPEND additional_packages_prefixes ${${prefixes_var}})
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endif()
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if(DEFINED ENV{${prefixes_var}}
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AND NOT "$ENV{${prefixes_var}}" STREQUAL "")
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set(prefixes_from_env "$ENV{${prefixes_var}}")
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if(NOT CMAKE_HOST_WIN32)
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string(REPLACE ":" ";" prefixes_from_env "${prefixes_from_env}")
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endif()
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list(APPEND additional_packages_prefixes ${prefixes_from_env})
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endif()
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foreach(additional_path IN LISTS additional_packages_prefixes)
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file(TO_CMAKE_PATH "${additional_path}" additional_path)
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# The prefix paths need to end with lib/cmake to ensure the packages are found when
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# cross compiling. Search for REROOT_PATH_ISSUE_MARKER in the qt.toolchain.cmake file for
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# details.
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# We must pass the values via the PATHS options because the main find_package call uses
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# NO_DEFAULT_PATH, and thus CMAKE_PREFIX_PATH values are discarded.
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# CMAKE_FIND_ROOT_PATH values are not discarded and togegher with the PATHS option, it
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# ensures packages from additional prefixes are found.
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if(NOT additional_path MATCHES "/lib/cmake$")
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string(APPEND additional_path "/lib/cmake")
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endif()
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list(APPEND additional_packages_prefix_paths "${additional_path}")
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endforeach()
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set("${out_var}" "${additional_packages_prefix_paths}" PARENT_SCOPE)
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endfunction()
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# Take a list of prefix paths ending with "/lib/cmake", and return a list of absolute paths with
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# "/lib/cmake" removed.
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function(__qt_internal_prefix_paths_to_roots out_var prefix_paths)
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set(result "")
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foreach(path IN LISTS prefix_paths)
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if(path MATCHES "/lib/cmake$")
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string(APPEND path "/../..")
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endif()
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get_filename_component(path "${path}" ABSOLUTE)
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list(APPEND result "${path}")
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endforeach()
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set("${out_var}" "${result}" PARENT_SCOPE)
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endfunction()
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