c3b8e24a8d
Emit a warning if `FEATURE_*` variable is set. The "feature" is not registered as a true feature after deprecation. Pick-to: 6.8 Change-Id: I715af231c228c73d70b037ee31aa61edcd45c21e Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> (cherry picked from commit 618053e27907369c92fbf5aac37ced07fb6e16c6) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> (cherry picked from commit 17c522418466a53b9fb7ea7bc1c8d4aa90692e4f)
1976 lines
76 KiB
CMake
1976 lines
76 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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include(CheckCXXCompilerFlag)
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function(qt_feature_module_begin)
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cmake_parse_arguments(PARSE_ARGV 0 arg
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"NO_MODULE;ONLY_EVALUATE_FEATURES"
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"LIBRARY;PRIVATE_FILE;PUBLIC_FILE"
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"PUBLIC_DEPENDENCIES;PRIVATE_DEPENDENCIES")
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_qt_internal_validate_all_args_are_parsed(arg)
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if(NOT arg_ONLY_EVALUATE_FEATURES)
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if ("${arg_LIBRARY}" STREQUAL "" AND (NOT ${arg_NO_MODULE}))
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message(FATAL_ERROR
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"qt_feature_begin_module needs a LIBRARY name! (or specify NO_MODULE)")
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endif()
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if ("${arg_PUBLIC_FILE}" STREQUAL "")
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message(FATAL_ERROR "qt_feature_begin_module needs a PUBLIC_FILE name!")
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endif()
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if ("${arg_PRIVATE_FILE}" STREQUAL "")
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message(FATAL_ERROR "qt_feature_begin_module needs a PRIVATE_FILE name!")
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endif()
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set(__QtFeature_only_evaluate_features OFF PARENT_SCOPE)
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else()
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set(__QtFeature_only_evaluate_features ON PARENT_SCOPE)
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endif()
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set(__QtFeature_library "${arg_LIBRARY}" PARENT_SCOPE)
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set(__QtFeature_public_features "" PARENT_SCOPE)
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set(__QtFeature_private_features "" PARENT_SCOPE)
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set(__QtFeature_internal_features "" PARENT_SCOPE)
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set(__QtFeature_private_file "${arg_PRIVATE_FILE}" PARENT_SCOPE)
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set(__QtFeature_public_file "${arg_PUBLIC_FILE}" PARENT_SCOPE)
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set(__QtFeature_private_extra "" PARENT_SCOPE)
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set(__QtFeature_public_extra "" PARENT_SCOPE)
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set(__QtFeature_config_definitions "" PARENT_SCOPE)
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set(__QtFeature_define_definitions "" PARENT_SCOPE)
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endfunction()
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function(qt_feature feature)
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set(original_name "${feature}")
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qt_feature_normalize_name("${feature}" feature)
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set_property(GLOBAL PROPERTY QT_FEATURE_ORIGINAL_NAME_${feature} "${original_name}")
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set(no_value_options
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PRIVATE
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PUBLIC
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SYSTEM_LIBRARY
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)
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set(single_value_options
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LABEL
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PURPOSE
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SECTION
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)
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set(multi_value_options
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AUTODETECT
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CONDITION
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ENABLE
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DISABLE
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EMIT_IF
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)
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cmake_parse_arguments(PARSE_ARGV 1 arg
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"${no_value_options}" "${single_value_options}" "${multi_value_options}"
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)
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_qt_internal_validate_all_args_are_parsed(arg)
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if(arg_SYSTEM_LIBRARY)
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# Enable SYSTEM_LIBRARY features if the 'force-system-libs' feature is enabled.
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if(DEFINED arg_ENABLE)
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list(PREPEND arg_ENABLE OR)
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endif()
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list(PREPEND arg_ENABLE QT_FEATURE_force_system_libs)
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# Disable SYSTEM_LIBRARY features if the 'force-bundled-libs' feature is enabled.
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if(DEFINED arg_DISABLE)
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list(PREPEND arg_DISABLE OR)
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endif()
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list(PREPEND arg_DISABLE QT_FEATURE_force_bundled_libs)
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qt_remove_args(forward_args
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ARGS_TO_REMOVE ENABLE DISABLE
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ALL_ARGS ${no_value_options} ${single_value_options} ${multi_value_options}
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ARGS ${ARGN}
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)
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list(APPEND forward_args
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ENABLE ${arg_ENABLE}
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DISABLE ${arg_DISABLE}
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)
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else()
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set(forward_args ${ARGN})
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endif()
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set(_QT_FEATURE_DEFINITION_${feature} ${forward_args} PARENT_SCOPE)
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# Register feature for future use:
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if (arg_PUBLIC)
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list(APPEND __QtFeature_public_features "${feature}")
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endif()
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if (arg_PRIVATE)
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list(APPEND __QtFeature_private_features "${feature}")
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endif()
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if (NOT arg_PUBLIC AND NOT arg_PRIVATE)
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list(APPEND __QtFeature_internal_features "${feature}")
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endif()
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set(__QtFeature_public_features ${__QtFeature_public_features} PARENT_SCOPE)
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set(__QtFeature_private_features ${__QtFeature_private_features} PARENT_SCOPE)
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set(__QtFeature_internal_features ${__QtFeature_internal_features} PARENT_SCOPE)
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endfunction()
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# Define an alternative alias for the main feature definition.
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#
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# If the main feature is defined, it takes precedence and all others are ignored. Otherwise
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# only one alias may be defined.
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#
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# Currently, we need this to be a dedicated function because we are gathering all aliases of
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# the main feature and check its real value as part of
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# `qt_feature_check_and_save_user_provided_value`
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#
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# TODO: See how to move this into the main `qt_feature` definition flow.
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# TODO: How to add `CONDITION` and how does it interact with the main feature's `EMIT_IF`
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#
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# Synopsis
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#
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# qt_feature_alias(<alias_feature>
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# {ALIAS_OF_FEATURE <real_feature> | ALIAS_OF_CACHE <cache>}
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# [PRIVATE | PUBLIC]
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# [LABEL <string>]
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# [PURPOSE <string>]
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# [SECTION <string>]
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# [NEGATE]
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# )
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#
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# Arguments
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#
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# `<alias_feature>`
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# The feature alias to be created.
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#
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# `ALIAS_OF_FEATURE`
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# The true canonical feature to consider.
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#
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# `ALIAS_OF_CACHE`
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# The true cache variable that this value must synchronize with.
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#
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# `NEGATE`
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# Populate the main FEATURE variable with the opposite of the alias's value
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#
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# `LABEL`, `PURPOSE`, `SECTION`
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# Same as in `qt_feature`
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#
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# `PRIVATE`, `PUBLIC`
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# Same as in `qt_feature`. When `ALIAS_OF_FEATURE` is used, these have no effect, instead the
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# value of the the true feature is used.
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function(qt_feature_alias alias_feature)
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set(option_args
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NEGATE
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PRIVATE
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PUBLIC
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)
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set(single_args
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ALIAS_OF_FEATURE
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ALIAS_OF_CACHE
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LABEL
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PURPOSE
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SECTION
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)
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set(multi_args "")
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cmake_parse_arguments(PARSE_ARGV 1 arg "${option_args}" "${single_args}" "${multi_args}")
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_qt_internal_validate_all_args_are_parsed(arg)
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if(NOT arg_ALIAS_OF_FEATURE AND NOT arg_ALIAS_OF_CACHE)
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message(FATAL_ERROR "One of ALIAS_OF_FEATURE,ALIAS_OF_CACHE must be passed.")
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endif()
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if(arg_ALIAS_OF_FEATURE AND arg_ALIAS_OF_CACHE)
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message(FATAL_ERROR "ALIAS_OF_FEATURE and ALIAS_OF_CACHE are mutually exclusive.")
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endif()
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set(original_name "${alias_feature}")
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qt_feature_normalize_name("${alias_feature}" alias_feature)
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set_property(GLOBAL PROPERTY QT_FEATURE_ORIGINAL_NAME_${alias_feature} "${original_name}")
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set(forward_args "")
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if(arg_ALIAS_OF_FEATURE)
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qt_feature_normalize_name("${arg_ALIAS_OF_FEATURE}" arg_ALIAS_OF_FEATURE)
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if(NOT DEFINED _QT_FEATURE_DEFINITION_${arg_ALIAS_OF_FEATURE})
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message(FATAL_ERROR "Primary feature ${arg_ALIAS_OF_FEATURE} was not defined yet.")
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endif()
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list(APPEND _QT_FEATURE_ALIASES_${arg_ALIAS_OF_FEATURE} "${alias_feature}")
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list(APPEND forward_args ALIAS_OF_FEATURE "${arg_ALIAS_OF_FEATURE}")
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endif()
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if(arg_ALIAS_OF_CACHE)
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list(APPEND forward_args ALIAS_OF_CACHE "${arg_ALIAS_OF_CACHE}")
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endif()
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if(arg_NEGATE)
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list(APPEND forward_args ALIAS_NEGATE)
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endif()
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if(arg_LABEL)
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list(APPEND forward_args LABEL "${arg_LABEL}")
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endif()
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if(arg_PURPOSE)
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list(APPEND forward_args PURPOSE "${arg_PURPOSE}")
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endif()
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if(arg_SECTION)
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list(APPEND forward_args SECTION "${arg_SECTION}")
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endif()
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set(_QT_FEATURE_DEFINITION_${alias_feature} ${forward_args} PARENT_SCOPE)
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if(arg_ALIAS_OF_FEATURE)
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# Register alias as a feature type similar to the true one
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foreach(type IN ITEMS public private internal)
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if(arg_ALIAS_OF_FEATURE IN_LIST __QtFeature_${type}_features)
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list(APPEND __QtFeature_${type}_features "${alias_feature}")
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set(__QtFeature_${type}_features ${__QtFeature_${type}_features} PARENT_SCOPE)
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endif()
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endforeach()
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set(_QT_FEATURE_ALIASES_${arg_ALIAS_OF_FEATURE}
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"${_QT_FEATURE_ALIASES_${arg_ALIAS_OF_FEATURE}}" PARENT_SCOPE)
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else()
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# Otherwise use the same logic as qt_feature
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if (arg_PUBLIC)
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list(APPEND __QtFeature_public_features "${alias_feature}")
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endif()
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if (arg_PRIVATE)
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list(APPEND __QtFeature_private_features "${alias_feature}")
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endif()
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if (NOT arg_PUBLIC AND NOT arg_PRIVATE)
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list(APPEND __QtFeature_internal_features "${alias_feature}")
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endif()
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set(__QtFeature_public_features ${__QtFeature_public_features} PARENT_SCOPE)
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set(__QtFeature_private_features ${__QtFeature_private_features} PARENT_SCOPE)
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set(__QtFeature_internal_features ${__QtFeature_internal_features} PARENT_SCOPE)
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endif()
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endfunction()
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# Create a deprecated feature
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#
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# Synopsis
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#
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# qt_feature_deprecated(<feature>
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# REMOVE_BY <version>
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# [MESSAGE <string>] [VALUE <val>]
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# [PRIVATE | PUBLIC]
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# [LABEL <string>] [PURPOSE <string>] [SECTION <string>]
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# )
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#
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# Arguments
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#
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# `<feature>`
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# The feature to be created.
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#
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# `REMOVE_BY`
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# Qt version when this feature is going to be removed
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#
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# `MESSAGE`
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# Additional deprecation message to be printed.
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#
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# `VALUE`
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# Value of the `QT_FEATURE_<feature>` that this is forced to. If undefined,
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# `QT_FEATURE_<feature>` is not populated
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#
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# `LABEL`, `PURPOSE`, `SECTION`, `PRIVATE`, `PUBLIC`
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# Same as in `qt_feature`
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function(qt_feature_deprecated feature)
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set(option_args
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PRIVATE
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PUBLIC
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)
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set(single_args
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REMOVE_BY
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MESSAGE
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VALUE
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LABEL
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PURPOSE
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SECTION
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)
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set(multi_args "")
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cmake_parse_arguments(PARSE_ARGV 1 arg "${option_args}" "${single_args}" "${multi_args}")
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_qt_internal_validate_all_args_are_parsed(arg)
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if(NOT arg_REMOVE_BY)
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message(FATAL_ERROR "qt_feature_deprecated requires REMOVE_BY keyword")
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elseif(PROJECT_VERSION VERSION_GREATER_EQUAL arg_REMOVE_BY)
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message(FATAL_ERROR
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"Deprecated feature ${feature} must be removed before Qt version ${arg_REMOVE_BY}"
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)
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endif()
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set(original_name "${feature}")
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qt_feature_normalize_name("${feature}" feature)
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# Check if the values were manually passed
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if(DEFINED FEATURE_${feature})
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set(deprecation_msg "FEATURE_${feature} is deprecated. ")
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if(arg_VALUE)
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string(APPEND deprecation_msg "The value is always: ${arg_VALUE}")
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else()
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string(APPEND deprecation_msg "The value is not used.")
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endif()
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if(arg_MESSAGE)
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string(APPEND deprecation_msg "\n${arg_MESSAGE}")
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endif()
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qt_configure_add_report_entry(RECORD_ON_FEATURE_EVALUATION TYPE WARNING
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MESSAGE "${deprecation_msg}")
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unset(FEATURE_${feature} CACHE)
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endif()
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# Make sure the `QT_FEATURE_*` value is set/unset accordingly
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unset(err_msg)
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if(arg_VALUE)
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if(DEFINED QT_FEATURE_${feature} AND NOT QT_FEATURE_${feature} STREQUAL arg_VALUE)
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string(CONCAT err_msg
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"QT_FEATURE_${feature} was manually set to ${QT_FEATURE_${feature}}, but"
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"the only supported value is: ${arg_VALUE}\n"
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"Overwriting QT_FEATURE_${feature} cache to ${arg_VALUE}"
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)
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endif()
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set(QT_FEATURE_${feature} "${arg_VALUE}" CACHE INTERNAL
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"Deprecated: Always ${arg_VALUE}. ${arg_MESSAGE}"
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)
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else()
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if(DEFINED QT_FEATURE_${feature})
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string(CONCAT msg
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"QT_FEATURE_${feature} was manually set to ${QT_FEATURE_${feature}}, but"
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"the value must **NOT** be set.\n"
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"Unsetting QT_FEATURE_${feature} cache"
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)
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unset(QT_FEATURE_${feature} CACHE)
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endif()
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endif()
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# Emit the error message if we have an unexpected `QT_FEATURE_*`
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if(err_msg)
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if(arg_MESSAGE)
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string(APPEND err_msg "\n${arg_MESSAGE}")
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endif()
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qt_configure_add_report_error("${err_msg}")
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endif()
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# Register the feature as a normal feature
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set(forward_args "")
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foreach(arg IN ITEMS LABEL PURPOSE SECTION)
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if(arg_${arg})
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list(APPEND forward_args ${arg} "${arg_${arg}}")
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endif()
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endforeach()
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set(_QT_FEATURE_DEFINITION_${feature} ${forward_args} PARENT_SCOPE)
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# Do the feature register
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if (arg_PUBLIC)
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list(APPEND __QtFeature_public_features "${feature}")
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set(__QtFeature_public_features ${__QtFeature_public_features} PARENT_SCOPE)
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endif()
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if (arg_PRIVATE)
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list(APPEND __QtFeature_private_features "${feature}")
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set(__QtFeature_private_features ${__QtFeature_private_features} PARENT_SCOPE)
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endif()
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if (NOT arg_PUBLIC AND NOT arg_PRIVATE)
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list(APPEND __QtFeature_internal_features "${feature}")
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set(__QtFeature_internal_features ${__QtFeature_internal_features} PARENT_SCOPE)
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endif()
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endfunction()
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function(qt_evaluate_to_boolean expressionVar)
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if(${${expressionVar}})
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set(${expressionVar} ON PARENT_SCOPE)
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else()
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set(${expressionVar} OFF PARENT_SCOPE)
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endif()
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endfunction()
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function(qt_internal_evaluate_config_expression resultVar outIdx startIdx)
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set(result "")
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set(expression "${ARGN}")
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list(LENGTH expression length)
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get_property(known_compile_tests GLOBAL PROPERTY _qtfeature_known_compile_tests)
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math(EXPR memberIdx "${startIdx} - 1")
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math(EXPR length "${length}-1")
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while(memberIdx LESS ${length})
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math(EXPR memberIdx "${memberIdx} + 1")
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list(GET expression ${memberIdx} member)
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if("${member}" STREQUAL "(")
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math(EXPR memberIdx "${memberIdx} + 1")
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qt_internal_evaluate_config_expression(sub_result memberIdx ${memberIdx} ${expression})
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list(APPEND result ${sub_result})
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elseif("${member}" STREQUAL ")")
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break()
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elseif("${member}" STREQUAL "NOT")
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list(APPEND result ${member})
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elseif("${member}" STREQUAL "AND")
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qt_evaluate_to_boolean(result)
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if(NOT ${result})
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break()
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endif()
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set(result "")
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elseif("${member}" STREQUAL "OR")
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qt_evaluate_to_boolean(result)
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if(${result})
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break()
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endif()
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set(result "")
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elseif("${member}" STREQUAL "STREQUAL" AND memberIdx LESS ${length})
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# Unfortunately the semantics for STREQUAL in if() are broken when the
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# RHS is an empty string and the parameters to if are coming through a variable.
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# So we expect people to write the empty string with single quotes and then we
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# do the comparison manually here.
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list(LENGTH result lhsIndex)
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math(EXPR lhsIndex "${lhsIndex}-1")
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list(GET result ${lhsIndex} lhs)
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list(REMOVE_AT result ${lhsIndex})
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set(lhs "${${lhs}}")
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math(EXPR rhsIndex "${memberIdx}+1")
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set(memberIdx ${rhsIndex})
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list(GET expression ${rhsIndex} rhs)
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# We can't pass through an empty string with double quotes through various
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# stages of substitution, so instead it is represented using single quotes
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# and resolve here.
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string(REGEX REPLACE "'(.*)'" "\\1" rhs "${rhs}")
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string(COMPARE EQUAL "${lhs}" "${rhs}" stringCompareResult)
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list(APPEND result ${stringCompareResult})
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else()
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if(member MATCHES "^TEST_")
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# Remove the TEST_ prefix
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string(SUBSTRING "${member}" 5 -1 test_name)
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if(test_name IN_LIST known_compile_tests)
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qt_run_config_compile_test("${test_name}")
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endif()
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elseif(member MATCHES "^QT_FEATURE_")
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# Remove the QT_FEATURE_ prefix
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string(SUBSTRING "${member}" 11 -1 feature)
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qt_evaluate_feature(${feature})
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endif()
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list(APPEND result ${member})
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endif()
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endwhile()
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# The 'TARGET Gui' case is handled by qt_evaluate_to_boolean, by passing those tokens verbatim
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# to if().
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if("${result}" STREQUAL "")
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set(result ON)
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else()
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qt_evaluate_to_boolean(result)
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endif()
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# When in recursion, we must skip to the next closing parenthesis on nesting level 0. The outIdx
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# must point to the matching closing parenthesis, and that's not the case if we're early exiting
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# in AND/OR.
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if(startIdx GREATER 0)
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set(nestingLevel 1)
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while(TRUE)
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list(GET expression ${memberIdx} member)
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if("${member}" STREQUAL ")")
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|
math(EXPR nestingLevel "${nestingLevel} - 1")
|
|
if(nestingLevel EQUAL 0)
|
|
break()
|
|
endif()
|
|
elseif("${member}" STREQUAL "(")
|
|
math(EXPR nestingLevel "${nestingLevel} + 1")
|
|
endif()
|
|
math(EXPR memberIdx "${memberIdx} + 1")
|
|
endwhile()
|
|
endif()
|
|
|
|
set(${outIdx} ${memberIdx} PARENT_SCOPE)
|
|
set(${resultVar} ${result} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_evaluate_config_expression resultVar)
|
|
qt_internal_evaluate_config_expression(result unused 0 ${ARGN})
|
|
set("${resultVar}" "${result}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(_qt_internal_get_feature_condition_keywords out_var)
|
|
set(keywords "EQUAL" "LESS" "LESS_EQUAL" "GREATER" "GREATER_EQUAL" "STREQUAL" "STRLESS"
|
|
"STRLESS_EQUAL" "STRGREATER" "STRGREATER_EQUAL" "VERSION_EQUAL" "VERSION_LESS"
|
|
"VERSION_LESS_EQUAL" "VERSION_GREATER" "VERSION_GREATER_EQUAL" "MATCHES"
|
|
"EXISTS" "COMMAND" "DEFINED" "NOT" "AND" "OR" "TARGET" "EXISTS" "IN_LIST" "(" ")")
|
|
set(${out_var} "${keywords}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(_qt_internal_dump_expression_values expression_dump expression)
|
|
set(dump "")
|
|
set(skipNext FALSE)
|
|
set(isTargetExpression FALSE)
|
|
|
|
_qt_internal_get_feature_condition_keywords(keywords)
|
|
|
|
list(LENGTH expression length)
|
|
math(EXPR length "${length}-1")
|
|
|
|
if(${length} LESS 0)
|
|
return()
|
|
endif()
|
|
|
|
foreach(memberIdx RANGE ${length})
|
|
if(${skipNext})
|
|
set(skipNext FALSE)
|
|
continue()
|
|
endif()
|
|
|
|
list(GET expression ${memberIdx} member)
|
|
if(NOT "${member}" IN_LIST keywords)
|
|
string(FIND "${member}" "QT_FEATURE_" idx)
|
|
if(idx EQUAL 0)
|
|
if(NOT DEFINED ${member})
|
|
list(APPEND dump "${member} not evaluated")
|
|
else()
|
|
list(APPEND dump "${member} = \"${${member}}\"")
|
|
endif()
|
|
elseif(isTargetExpression)
|
|
set(targetExpression "TARGET;${member}")
|
|
if(${targetExpression})
|
|
list(APPEND dump "TARGET ${member} found")
|
|
else()
|
|
list(APPEND dump "TARGET ${member} not found")
|
|
endif()
|
|
else()
|
|
list(APPEND dump "${member} = \"${${member}}\"")
|
|
endif()
|
|
set(isTargetExpression FALSE)
|
|
set(skipNext FALSE)
|
|
elseif("${member}" STREQUAL "TARGET")
|
|
set(isTargetExpression TRUE)
|
|
elseif("${member}" STREQUAL "STREQUAL")
|
|
set(skipNext TRUE)
|
|
else()
|
|
set(skipNext FALSE)
|
|
set(isTargetExpression FALSE)
|
|
endif()
|
|
endforeach()
|
|
string(JOIN "\n " ${expression_dump} ${dump})
|
|
set(${expression_dump} "${${expression_dump}}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Check the actual value of a given feature/alias.
|
|
# The value can come from `FEATURE_<alias>` being set or from another alias.
|
|
# The out_var is sanitized to 0/1 and it is not set if the feature was not defined.
|
|
function(_qt_feature_evaluate_alias out_var alias)
|
|
# Evaluate the alias against the aliases of the alias
|
|
_qt_feature_check_feature_alias(${alias})
|
|
if(NOT DEFINED FEATURE_${alias})
|
|
# If the alias was not defined, don't set value
|
|
return()
|
|
endif()
|
|
# Check if we need to negate the value to be set or not
|
|
set(not_kw)
|
|
_qt_internal_parse_feature_definition("${alias}")
|
|
if(arg_ALIAS_NEGATE)
|
|
set(not_kw "NOT")
|
|
endif()
|
|
# Evaluate the value and return it
|
|
qt_set01(${out_var} ${not_kw} FEATURE_${alias})
|
|
set(${out_var} "${${out_var}}" PARENT_SCOPE)
|
|
# Also set `not_kw` since it would be reused by the caller
|
|
set(not_kw "${not_kw}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Check that the feature value is consistent with any of its aliases.
|
|
# If the feature was not set via `FEATURE_<feature>`, it may be set by the aliases.
|
|
function(_qt_feature_check_feature_alias feature)
|
|
if(DEFINED "FEATURE_${feature}")
|
|
# The main feature was already defined, use the current value.
|
|
# Just check if the other aliases have agreeing values.
|
|
qt_set01(expected_value FEATURE_${feature})
|
|
unset(alias_value)
|
|
foreach(alias IN LISTS _QT_FEATURE_ALIASES_${feature})
|
|
_qt_feature_evaluate_alias(alias_value ${alias})
|
|
if(DEFINED alias_value)
|
|
if(NOT expected_value EQUAL alias_value)
|
|
string(CONCAT msg
|
|
"Alias FEATURE_${alias}(${FEATURE_${alias}}) is an alias of ${not_kw} "
|
|
"FEATURE_${feature}(${FEATURE_${alias}}), and their values conflict"
|
|
)
|
|
qt_configure_add_report_error(${msg})
|
|
endif()
|
|
unset(alias_value)
|
|
endif()
|
|
endforeach()
|
|
return()
|
|
endif()
|
|
# Otherwise try to set the `feature` value from the aliases
|
|
set(aliases_set "")
|
|
set(expected_value "")
|
|
set(alias_not_kws "")
|
|
unset(value)
|
|
foreach(alias IN LISTS _QT_FEATURE_ALIASES_${feature})
|
|
_qt_feature_evaluate_alias(value ${alias})
|
|
if(DEFINED value)
|
|
list(APPEND aliases_set "${alias}")
|
|
list(APPEND expected_value "${value}")
|
|
list(APPEND alias_not_kws "${not_kw}")
|
|
unset(value)
|
|
endif()
|
|
endforeach()
|
|
# If there were no aliases set, do not set the feature either
|
|
if(NOT aliases_set)
|
|
return()
|
|
endif()
|
|
# Check if all values are consistent
|
|
list(TRANSFORM REMOVE_DUPLICATES expected_value)
|
|
list(LENGTH expected_value expected_value_length)
|
|
if(expected_value_length GREATER 1)
|
|
string(CONCAT msg
|
|
"Multiple aliases of FEATURE_${feature} were defined, with conflicting values.\n"
|
|
"Aliases:"
|
|
)
|
|
while(aliases_set)
|
|
list(POP_FRONT aliases_set alias)
|
|
list(POP_FRONT alias_not_kws not_kw)
|
|
string(CONCAT msg
|
|
"${msg}\n"
|
|
" - ${not_kw} FEATURE_${alias}(${FEATURE_${alias}})"
|
|
)
|
|
endwhile()
|
|
qt_configure_add_report_error(${msg})
|
|
return()
|
|
endif()
|
|
# All aliased values are agreeing
|
|
set("FEATURE_${feature}" ${expected_value} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Check that the alias value is consistent with its cache source
|
|
function(_qt_feature_check_cache_alias feature)
|
|
_qt_internal_parse_feature_definition("${feature}")
|
|
if(NOT arg_ALIAS_OF_CACHE)
|
|
# Not an alias of a cache variable, skip this check
|
|
return()
|
|
endif()
|
|
if(DEFINED "${arg_ALIAS_OF_CACHE}")
|
|
# Check if the feature is set by another alias
|
|
unset(expected_value)
|
|
_qt_feature_evaluate_alias(expected_value "${feature}")
|
|
qt_set01(cache_sanitized ${arg_ALIAS_OF_CACHE})
|
|
if(NOT DEFINED expected_value)
|
|
# If nothing else set the alias value, use the primary cache value
|
|
set("FEATURE_${feature}" "${${arg_ALIAS_OF_CACHE}}" PARENT_SCOPE)
|
|
return()
|
|
endif()
|
|
# Otherwise, just check for consistency
|
|
if(NOT cache_sanitized EQUAL expected_value)
|
|
string(CONCAT msg
|
|
"FEATURE_${feature}(${FEATURE_${feature}}) is an alias of ${not_kw} "
|
|
"${arg_ALIAS_OF_CACHE}(${${arg_ALIAS_OF_CACHE}}), and their values conflict."
|
|
)
|
|
qt_configure_add_report_error(${msg})
|
|
endif()
|
|
endif()
|
|
endfunction()
|
|
|
|
# Make sure all the direct alias values are set after the final evaluation of the feature value.
|
|
# Must be run after `_qt_feature_check_feature_alias` which checks for user-defined values and
|
|
# any inconsistencies
|
|
function(_qt_feature_save_alias feature)
|
|
foreach(alias IN LISTS _QT_FEATURE_ALIASES_${feature})
|
|
# We only need to set the alias values if they were not explicitly set. The consistency
|
|
# check for those was done prior to this function call.
|
|
if(NOT DEFINED FEATURE_${alias})
|
|
# Evaluate the alias value based on the original
|
|
set(not_kw)
|
|
_qt_internal_parse_feature_definition("${alias}")
|
|
if(arg_ALIAS_NEGATE)
|
|
set(not_kw "NOT")
|
|
endif()
|
|
qt_set01(value ${not_kw} FEATURE_${feature})
|
|
qt_evaluate_to_boolean(value)
|
|
# Set the values based on the main feature's value
|
|
set(FEATURE_${alias} ${value} CACHE BOOL
|
|
# Using a temporary docstring that should be overwritten if everything works well
|
|
"(temporarily set by _qt_feature_save_alias)"
|
|
)
|
|
endif()
|
|
endforeach()
|
|
endfunction()
|
|
|
|
# Stores the user provided value to FEATURE_${feature} if provided.
|
|
# If not provided, stores ${computed} instead.
|
|
# ${computed} is also stored when reconfiguring and the condition does not align with the user
|
|
# provided value.
|
|
#
|
|
function(qt_feature_check_and_save_user_provided_value
|
|
resultVar feature condition condition_expression computed label)
|
|
_qt_feature_check_cache_alias(${feature})
|
|
_qt_feature_check_feature_alias(${feature})
|
|
if (DEFINED "FEATURE_${feature}")
|
|
# Revisit new user provided value
|
|
set(user_value "${FEATURE_${feature}}")
|
|
string(TOUPPER "${user_value}" user_value_upper)
|
|
set(result "${user_value_upper}")
|
|
|
|
# If ${feature} depends on another dirty feature, reset the ${feature} value to
|
|
# ${computed}.
|
|
get_property(dirty_build GLOBAL PROPERTY _qt_dirty_build)
|
|
if(dirty_build)
|
|
_qt_internal_feature_compute_feature_dependencies(deps "${feature}")
|
|
if(deps)
|
|
get_property(dirty_features GLOBAL PROPERTY _qt_dirty_features)
|
|
foreach(dirty_feature ${dirty_features})
|
|
if(dirty_feature IN_LIST deps AND NOT "${result}" STREQUAL "${computed}")
|
|
set(result "${computed}")
|
|
message(WARNING
|
|
"Auto-resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
|
|
"'${computed}', "
|
|
"because the dependent feature '${dirty_feature}' was marked dirty.")
|
|
|
|
# Append ${feature} as a new dirty feature.
|
|
set_property(GLOBAL APPEND PROPERTY _qt_dirty_features "${feature}")
|
|
break()
|
|
endif()
|
|
endforeach()
|
|
endif()
|
|
|
|
# If the build is marked as dirty and the feature doesn't meet its condition,
|
|
# reset its value to the computed one, which is likely OFF.
|
|
if(NOT condition AND result)
|
|
set(result "${computed}")
|
|
message(WARNING "Resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
|
|
"'${computed}' because it doesn't meet its condition after reconfiguration. "
|
|
"Condition expression is: '${condition_expression}'")
|
|
endif()
|
|
endif()
|
|
|
|
set(bool_values OFF NO FALSE N ON YES TRUE Y)
|
|
if ((result IN_LIST bool_values) OR (result GREATER_EQUAL 0))
|
|
# All good!
|
|
else()
|
|
message(FATAL_ERROR
|
|
"Sanity check failed: FEATURE_${feature} has invalid value \"${result}\"!")
|
|
endif()
|
|
|
|
# Fix-up user-provided values
|
|
set("FEATURE_${feature}" "${result}" CACHE BOOL "${label}" FORCE)
|
|
else()
|
|
# Initial setup:
|
|
set(result "${computed}")
|
|
set("FEATURE_${feature}" "${result}" CACHE BOOL "${label}")
|
|
# Update the HELPSTRING if needed
|
|
set_property(CACHE "FEATURE_${feature}" PROPERTY
|
|
HELPSTRING "${label}"
|
|
)
|
|
endif()
|
|
|
|
# Check for potential typo
|
|
get_property(original_name GLOBAL PROPERTY "QT_FEATURE_ORIGINAL_NAME_${feature}")
|
|
if(NOT original_name STREQUAL feature AND DEFINED "FEATURE_${original_name}")
|
|
unset("FEATURE_${original_name}" CACHE)
|
|
qt_configure_add_report_error(
|
|
"FEATURE_${original_name} does not exist. Consider using: FEATURE_${feature}"
|
|
)
|
|
endif()
|
|
|
|
# Set the values of each direct alias
|
|
_qt_feature_save_alias("${feature}")
|
|
|
|
set("${resultVar}" "${result}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Saves the final user value to QT_FEATURE_${feature}, after checking that the condition is met.
|
|
macro(qt_feature_check_and_save_internal_value
|
|
feature saved_user_value condition label conditionExpression)
|
|
if(${saved_user_value})
|
|
set(result ON)
|
|
else()
|
|
set(result OFF)
|
|
endif()
|
|
|
|
if ((NOT condition) AND result)
|
|
_qt_internal_dump_expression_values(conditionDump "${conditionExpression}")
|
|
string(JOIN " " conditionString ${conditionExpression})
|
|
qt_configure_add_report_error("Feature \"${feature}\": Forcing to \"${result}\" breaks its \
|
|
condition:\n ${conditionString}\nCondition values dump:\n ${conditionDump}\n" RECORD_ON_FEATURE_EVALUATION)
|
|
endif()
|
|
|
|
if (DEFINED "QT_FEATURE_${feature}")
|
|
message(FATAL_ERROR "Feature ${feature} is already defined when evaluating configure.cmake features for ${target}.")
|
|
endif()
|
|
set(QT_FEATURE_${feature} "${result}" CACHE INTERNAL "Qt feature: ${feature}")
|
|
|
|
# Add feature to build feature collection
|
|
list(APPEND QT_KNOWN_FEATURES "${feature}")
|
|
set(QT_KNOWN_FEATURES "${QT_KNOWN_FEATURES}" CACHE INTERNAL "" FORCE)
|
|
endmacro()
|
|
|
|
macro(_qt_internal_parse_feature_definition feature)
|
|
cmake_parse_arguments(arg
|
|
"PRIVATE;PUBLIC;ALIAS_NEGATE"
|
|
"LABEL;PURPOSE;SECTION;ALIAS_OF_FEATURE;ALIAS_OF_CACHE"
|
|
"AUTODETECT;CONDITION;ENABLE;DISABLE;EMIT_IF"
|
|
${_QT_FEATURE_DEFINITION_${feature}})
|
|
endmacro()
|
|
|
|
|
|
# The build system stores 2 CMake cache variables for each feature, to allow detecting value changes
|
|
# during subsequent reconfigurations.
|
|
#
|
|
#
|
|
# `FEATURE_foo` stores the user provided feature value for the current configuration run.
|
|
# It can be set directly by the user.
|
|
#
|
|
# If a value is not provided on initial configuration, the value will be auto-computed based on the
|
|
# various conditions of the feature.
|
|
# TODO: Document the various conditions and how they relate to each other.
|
|
#
|
|
#
|
|
# `QT_FEATURE_foo` stores the value of the feature from the previous configuration run.
|
|
# Its value is updated once with the newest user provided value after some checks are performed.
|
|
#
|
|
# This variable also serves as the main source of truth throughout the build system code to check
|
|
# if the feature is enabled, e.g. if(QT_FEATURE_foo)
|
|
#
|
|
# It is not meant to be set by the user. It is only modified by the build system.
|
|
#
|
|
# Comparing the values of QT_FEATURE_foo and FEATURE_foo, the build system can detect whether
|
|
# the user changed the value for a feature and thus recompute any dependent features.
|
|
#
|
|
function(qt_evaluate_feature feature)
|
|
# If the feature was already evaluated as dependency nothing to do here.
|
|
if(DEFINED "QT_FEATURE_${feature}")
|
|
return()
|
|
endif()
|
|
|
|
if(NOT DEFINED _QT_FEATURE_DEFINITION_${feature})
|
|
qt_debug_print_variables(DEDUP MATCH "^QT_FEATURE")
|
|
message(FATAL_ERROR "Attempting to evaluate feature ${feature} but its definition is missing. Either the feature does not exist or a dependency to the module that defines it is missing")
|
|
endif()
|
|
|
|
_qt_internal_parse_feature_definition("${feature}")
|
|
|
|
if(arg_ALIAS_OF)
|
|
# If the current feature is an alias of another, we have to check the original source first
|
|
# in order to be consistent with the original source if set
|
|
qt_evaluate_feature("${arg_ALIAS_OF}")
|
|
endif()
|
|
|
|
if("${arg_ENABLE}" STREQUAL "")
|
|
set(arg_ENABLE OFF)
|
|
endif()
|
|
|
|
if("${arg_DISABLE}" STREQUAL "")
|
|
set(arg_DISABLE OFF)
|
|
endif()
|
|
|
|
if("${arg_AUTODETECT}" STREQUAL "")
|
|
set(arg_AUTODETECT ON)
|
|
endif()
|
|
|
|
if("${arg_CONDITION}" STREQUAL "")
|
|
set(condition ON)
|
|
else()
|
|
qt_evaluate_config_expression(condition ${arg_CONDITION})
|
|
endif()
|
|
|
|
qt_evaluate_config_expression(disable_result ${arg_DISABLE})
|
|
qt_evaluate_config_expression(enable_result ${arg_ENABLE})
|
|
qt_evaluate_config_expression(auto_detect ${arg_AUTODETECT})
|
|
if(${disable_result})
|
|
set(computed OFF)
|
|
elseif(${enable_result})
|
|
set(computed ON)
|
|
elseif(${auto_detect})
|
|
set(computed ${condition})
|
|
else()
|
|
# feature not auto-detected and not explicitly enabled
|
|
set(computed OFF)
|
|
endif()
|
|
|
|
if("${arg_EMIT_IF}" STREQUAL "")
|
|
set(emit_if ON)
|
|
else()
|
|
qt_evaluate_config_expression(emit_if ${arg_EMIT_IF})
|
|
endif()
|
|
|
|
set(actual_label "${arg_LABEL}")
|
|
if(arg_ALIAS_OF_FEATURE OR arg_ALIAS_OF_CACHE)
|
|
set(not_kw)
|
|
if(arg_ALIAS_NEGATE)
|
|
set(not_kw "NOT")
|
|
endif()
|
|
# Only one of ALIAS_OF_FEATURE/ALIAS_OF_CACHE will be set, so we can just combine them
|
|
set(alias_source "${not_kw} ${arg_ALIAS_OF_FEATURE}${arg_ALIAS_OF_CACHE}")
|
|
string(APPEND actual_label " (alias of ${alias_source})")
|
|
endif()
|
|
|
|
# Warn about a feature which is not emitted, but the user explicitly provided a value for it.
|
|
if(NOT emit_if AND DEFINED FEATURE_${feature})
|
|
set(msg "")
|
|
string(APPEND msg
|
|
"Feature ${feature} is insignificant in this configuration, "
|
|
"ignoring related command line option(s).")
|
|
qt_configure_add_report_entry(TYPE WARNING MESSAGE "${msg}")
|
|
|
|
# Remove the cache entry so that the warning is not persisted and shown on every
|
|
# reconfiguration.
|
|
unset(FEATURE_${feature} CACHE)
|
|
endif()
|
|
|
|
# Only save the user provided value if the feature was emitted.
|
|
if(emit_if)
|
|
qt_feature_check_and_save_user_provided_value(
|
|
saved_user_value
|
|
"${feature}" "${condition}" "${arg_CONDITION}" "${computed}" "${actual_label}")
|
|
else()
|
|
# Make sure the feature internal value is OFF if not emitted.
|
|
set(saved_user_value OFF)
|
|
endif()
|
|
|
|
qt_feature_check_and_save_internal_value(
|
|
"${feature}" "${saved_user_value}" "${condition}" "${actual_label}" "${arg_CONDITION}")
|
|
|
|
# Store each feature's label for summary info.
|
|
set(QT_FEATURE_LABEL_${feature} "${actual_label}" CACHE INTERNAL "")
|
|
endfunction()
|
|
|
|
# Collect feature names that ${feature} depends on, by inspecting the given expression.
|
|
function(_qt_internal_feature_extract_feature_dependencies_from_expression out_var expression)
|
|
list(LENGTH expression length)
|
|
math(EXPR length "${length}-1")
|
|
|
|
if(length LESS 0)
|
|
set(${out_var} "" PARENT_SCOPE)
|
|
return()
|
|
endif()
|
|
|
|
set(deps "")
|
|
|
|
foreach(memberIdx RANGE ${length})
|
|
list(GET expression ${memberIdx} member)
|
|
if(member MATCHES "^QT_FEATURE_(.+)")
|
|
list(APPEND deps "${CMAKE_MATCH_1}")
|
|
endif()
|
|
endforeach()
|
|
set(${out_var} "${deps}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Collect feature names that ${feature} depends on, based on feature names that appear
|
|
# in the ${feature}'s condition expressions.
|
|
function(_qt_internal_feature_compute_feature_dependencies out_var feature)
|
|
# Only compute the deps once per feature.
|
|
get_property(deps_computed GLOBAL PROPERTY _qt_feature_deps_computed_${feature})
|
|
if(deps_computed)
|
|
get_property(deps GLOBAL PROPERTY _qt_feature_deps_${feature})
|
|
set(${out_var} "${deps}" PARENT_SCOPE)
|
|
return()
|
|
endif()
|
|
|
|
_qt_internal_parse_feature_definition("${feature}")
|
|
|
|
set(options_to_check AUTODETECT CONDITION ENABLE DISABLE EMIT_IF)
|
|
set(deps "")
|
|
|
|
# Go through each option that takes condition expressions and collect the feature names.
|
|
foreach(option ${options_to_check})
|
|
set(option_value "${arg_${option}}")
|
|
if(option_value)
|
|
_qt_internal_feature_extract_feature_dependencies_from_expression(
|
|
option_deps "${option_value}")
|
|
if(option_deps)
|
|
list(APPEND deps ${option_deps})
|
|
endif()
|
|
endif()
|
|
endforeach()
|
|
|
|
set_property(GLOBAL PROPERTY _qt_feature_deps_computed_${feature} TRUE)
|
|
set_property(GLOBAL PROPERTY _qt_feature_deps_${feature} "${deps}")
|
|
set(${out_var} "${deps}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_feature_config feature config_var_name)
|
|
qt_feature_normalize_name("${feature}" feature)
|
|
cmake_parse_arguments(PARSE_ARGV 2 arg
|
|
"NEGATE"
|
|
"NAME"
|
|
"")
|
|
_qt_internal_validate_all_args_are_parsed(arg)
|
|
|
|
# Store all the config related info in a unique variable key.
|
|
set(key_name "_QT_FEATURE_CONFIG_DEFINITION_${feature}_${config_var_name}")
|
|
set(${key_name} "FEATURE;${feature};CONFIG_VAR_NAME;${config_var_name};${ARGN}" PARENT_SCOPE)
|
|
|
|
# Store the key for later evaluation.
|
|
list(APPEND __QtFeature_config_definitions "${key_name}")
|
|
|
|
set(__QtFeature_config_definitions ${__QtFeature_config_definitions} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_evaluate_qmake_config_values key)
|
|
if(NOT DEFINED ${key})
|
|
qt_debug_print_variables(DEDUP MATCH "^_QT_FEATURE_CONFIG_DEFINITION")
|
|
message(FATAL_ERROR
|
|
"Attempting to evaluate feature config ${key} but its definition is missing. ")
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg
|
|
"NEGATE"
|
|
"FEATURE;NAME;CONFIG_VAR_NAME"
|
|
"" ${${key}})
|
|
|
|
# If no custom name is specified, then the config value is the same as the feature name.
|
|
if(NOT arg_NAME)
|
|
set(arg_NAME "${arg_FEATURE}")
|
|
endif()
|
|
|
|
set(expected "NOT")
|
|
if (arg_NEGATE)
|
|
set(expected "")
|
|
if(arg_NAME MATCHES "^no_(.*)")
|
|
set(arg_NAME "${CMAKE_MATCH_1}")
|
|
else()
|
|
string(PREPEND arg_NAME "no_")
|
|
endif()
|
|
endif()
|
|
|
|
# The feature condition is false, there is no need to export any config values.
|
|
if(${expected} ${QT_FEATURE_${arg_FEATURE}})
|
|
return()
|
|
endif()
|
|
|
|
if(arg_CONFIG_VAR_NAME STREQUAL "QMAKE_PUBLIC_CONFIG")
|
|
list(APPEND __QtFeature_qmake_public_config "${arg_NAME}")
|
|
set(__QtFeature_qmake_public_config "${__QtFeature_qmake_public_config}" PARENT_SCOPE)
|
|
endif()
|
|
if(arg_CONFIG_VAR_NAME STREQUAL "QMAKE_PRIVATE_CONFIG")
|
|
list(APPEND __QtFeature_qmake_private_config "${arg_NAME}")
|
|
set(__QtFeature_qmake_private_config "${__QtFeature_qmake_private_config}" PARENT_SCOPE)
|
|
endif()
|
|
if(arg_CONFIG_VAR_NAME STREQUAL "QMAKE_PUBLIC_QT_CONFIG")
|
|
list(APPEND __QtFeature_qmake_public_qt_config "${arg_NAME}")
|
|
set(__QtFeature_qmake_public_qt_config "${__QtFeature_qmake_public_qt_config}" PARENT_SCOPE)
|
|
endif()
|
|
endfunction()
|
|
|
|
function(qt_feature_definition feature name)
|
|
qt_feature_normalize_name("${feature}" feature)
|
|
cmake_parse_arguments(PARSE_ARGV 2 arg
|
|
"NEGATE"
|
|
"VALUE;PREREQUISITE"
|
|
"")
|
|
_qt_internal_validate_all_args_are_parsed(arg)
|
|
|
|
# Store all the define related info in a unique variable key.
|
|
set(key_name "_QT_FEATURE_DEFINE_DEFINITION_${feature}_${name}")
|
|
set(${key_name} "FEATURE;${feature};NAME;${name};${ARGN}" PARENT_SCOPE)
|
|
|
|
# Store the key for later evaluation and subsequent define generation:
|
|
list(APPEND __QtFeature_define_definitions "${key_name}")
|
|
|
|
set(__QtFeature_define_definitions ${__QtFeature_define_definitions} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_evaluate_feature_definition key)
|
|
if(NOT DEFINED ${key})
|
|
qt_debug_print_variables(DEDUP MATCH "^_QT_FEATURE_DEFINE_DEFINITION")
|
|
message(FATAL_ERROR "Attempting to evaluate feature define ${key} but its definition is missing. ")
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg
|
|
"NEGATE;"
|
|
"FEATURE;NAME;VALUE;PREREQUISITE" "" ${${key}})
|
|
|
|
set(expected ON)
|
|
if (arg_NEGATE)
|
|
set(expected OFF)
|
|
endif()
|
|
|
|
set(actual OFF)
|
|
if(QT_FEATURE_${arg_FEATURE})
|
|
set(actual ON)
|
|
endif()
|
|
|
|
set(msg "")
|
|
|
|
if(actual STREQUAL expected)
|
|
set(indent "")
|
|
if(arg_PREREQUISITE)
|
|
string(APPEND msg "#if ${arg_PREREQUISITE}\n")
|
|
set(indent " ")
|
|
endif()
|
|
if (arg_VALUE)
|
|
string(APPEND msg "${indent}#define ${arg_NAME} ${arg_VALUE}\n")
|
|
else()
|
|
string(APPEND msg "${indent}#define ${arg_NAME}\n")
|
|
endif()
|
|
if(arg_PREREQUISITE)
|
|
string(APPEND msg "#endif\n")
|
|
endif()
|
|
|
|
string(APPEND __QtFeature_public_extra "${msg}")
|
|
endif()
|
|
|
|
set(__QtFeature_public_extra ${__QtFeature_public_extra} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_extra_definition name value)
|
|
cmake_parse_arguments(PARSE_ARGV 2 arg
|
|
"PUBLIC;PRIVATE"
|
|
""
|
|
"")
|
|
_qt_internal_validate_all_args_are_parsed(arg)
|
|
|
|
if (arg_PUBLIC)
|
|
string(APPEND __QtFeature_public_extra "\n#define ${name} ${value}\n")
|
|
elseif(arg_PRIVATE)
|
|
string(APPEND __QtFeature_private_extra "\n#define ${name} ${value}\n")
|
|
endif()
|
|
|
|
set(__QtFeature_public_extra ${__QtFeature_public_extra} PARENT_SCOPE)
|
|
set(__QtFeature_private_extra ${__QtFeature_private_extra} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_internal_generate_feature_line line feature)
|
|
string(TOUPPER "${QT_FEATURE_${feature}}" value)
|
|
if (value STREQUAL "ON")
|
|
set(line "#define QT_FEATURE_${feature} 1\n\n" PARENT_SCOPE)
|
|
elseif(value STREQUAL "OFF")
|
|
set(line "#define QT_FEATURE_${feature} -1\n\n" PARENT_SCOPE)
|
|
elseif(value STREQUAL "UNSET")
|
|
set(line "#define QT_FEATURE_${feature} 0\n\n" PARENT_SCOPE)
|
|
else()
|
|
message(FATAL_ERROR "${feature} has unexpected value \"${QT_FEATURE_${feature}}\"! "
|
|
"Valid values are ON, OFF and UNSET.")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(qt_internal_feature_write_file file features extra)
|
|
set(contents "")
|
|
foreach(it ${features})
|
|
qt_internal_generate_feature_line(line "${it}")
|
|
string(APPEND contents "${line}")
|
|
endforeach()
|
|
string(APPEND contents "${extra}")
|
|
|
|
file(GENERATE OUTPUT "${file}" CONTENT "${contents}")
|
|
endfunction()
|
|
|
|
# Helper function which evaluates features from a given list of configure.cmake paths
|
|
# and creates the feature cache entries.
|
|
# Should not be used directly, unless features need to be available in a directory scope before the
|
|
# associated module evaluates the features.
|
|
# E.g. qtbase/src.pro needs access to Core features before src/corelib/CMakeLists.txt is parsed.
|
|
function(qt_feature_evaluate_features list_of_paths)
|
|
qt_feature_module_begin(ONLY_EVALUATE_FEATURES)
|
|
foreach(path ${list_of_paths})
|
|
include("${path}")
|
|
endforeach()
|
|
qt_feature_module_end(ONLY_EVALUATE_FEATURES)
|
|
endfunction()
|
|
|
|
function(qt_feature_record_summary_entries list_of_paths)
|
|
# Clean up any stale state just in case.
|
|
qt_feature_unset_state_vars()
|
|
|
|
set(__QtFeature_only_record_summary_entries TRUE)
|
|
foreach(path ${list_of_paths})
|
|
include("${path}")
|
|
endforeach()
|
|
qt_feature_unset_state_vars()
|
|
endfunction()
|
|
|
|
function(qt_feature_module_end)
|
|
set(flags ONLY_EVALUATE_FEATURES)
|
|
set(options OUT_VAR_PREFIX)
|
|
set(multiopts)
|
|
cmake_parse_arguments(arg "${flags}" "${options}" "${multiopts}" ${ARGN})
|
|
set(target ${arg_UNPARSED_ARGUMENTS})
|
|
|
|
# The value of OUT_VAR_PREFIX is used as a prefix for output variables that should be
|
|
# set in the parent scope.
|
|
if(NOT arg_OUT_VAR_PREFIX)
|
|
set(arg_OUT_VAR_PREFIX "")
|
|
endif()
|
|
|
|
set(all_features ${__QtFeature_public_features} ${__QtFeature_private_features} ${__QtFeature_internal_features})
|
|
list(REMOVE_DUPLICATES all_features)
|
|
|
|
foreach(feature ${all_features})
|
|
qt_evaluate_feature(${feature})
|
|
endforeach()
|
|
|
|
# Evaluate custom cache assignments.
|
|
foreach(cache_var_name ${__QtFeature_custom_enabled_cache_variables})
|
|
set(${cache_var_name} ON CACHE BOOL "Force enabled by platform requirements." FORCE)
|
|
endforeach()
|
|
foreach(cache_var_name ${__QtFeature_custom_disabled_cache_variables})
|
|
set(${cache_var_name} OFF CACHE BOOL "Force disabled by platform requirements." FORCE)
|
|
endforeach()
|
|
|
|
set(enabled_public_features "")
|
|
set(disabled_public_features "")
|
|
set(enabled_private_features "")
|
|
set(disabled_private_features "")
|
|
|
|
foreach(feature ${__QtFeature_public_features})
|
|
if(QT_FEATURE_${feature})
|
|
list(APPEND enabled_public_features ${feature})
|
|
else()
|
|
list(APPEND disabled_public_features ${feature})
|
|
endif()
|
|
endforeach()
|
|
|
|
foreach(feature ${__QtFeature_private_features})
|
|
if(QT_FEATURE_${feature})
|
|
list(APPEND enabled_private_features ${feature})
|
|
else()
|
|
list(APPEND disabled_private_features ${feature})
|
|
endif()
|
|
endforeach()
|
|
|
|
foreach(key ${__QtFeature_config_definitions})
|
|
qt_evaluate_qmake_config_values(${key})
|
|
unset(${key} PARENT_SCOPE)
|
|
endforeach()
|
|
|
|
foreach(key ${__QtFeature_define_definitions})
|
|
qt_evaluate_feature_definition(${key})
|
|
unset(${key} PARENT_SCOPE)
|
|
endforeach()
|
|
|
|
foreach(feature ${all_features})
|
|
unset(_QT_FEATURE_DEFINITION_${feature} PARENT_SCOPE)
|
|
unset(_QT_FEATURE_ALIASES_${feature} PARENT_SCOPE)
|
|
endforeach()
|
|
|
|
if(NOT arg_ONLY_EVALUATE_FEATURES)
|
|
qt_internal_feature_write_file("${CMAKE_CURRENT_BINARY_DIR}/${__QtFeature_private_file}"
|
|
"${__QtFeature_private_features}" "${__QtFeature_private_extra}"
|
|
)
|
|
|
|
qt_internal_feature_write_file("${CMAKE_CURRENT_BINARY_DIR}/${__QtFeature_public_file}"
|
|
"${__QtFeature_public_features}" "${__QtFeature_public_extra}"
|
|
)
|
|
endif()
|
|
|
|
if (NOT ("${target}" STREQUAL "NO_MODULE") AND NOT arg_ONLY_EVALUATE_FEATURES)
|
|
get_target_property(targetType "${target}" TYPE)
|
|
if("${targetType}" STREQUAL "INTERFACE_LIBRARY")
|
|
set(propertyPrefix "INTERFACE_")
|
|
else()
|
|
set(propertyPrefix "")
|
|
set_property(TARGET "${target}" APPEND PROPERTY EXPORT_PROPERTIES "QT_ENABLED_PUBLIC_FEATURES;QT_DISABLED_PUBLIC_FEATURES;QT_ENABLED_PRIVATE_FEATURES;QT_DISABLED_PRIVATE_FEATURES;QT_QMAKE_PUBLIC_CONFIG;QT_QMAKE_PRIVATE_CONFIG;QT_QMAKE_PUBLIC_QT_CONFIG")
|
|
endif()
|
|
foreach(visibility public private)
|
|
string(TOUPPER "${visibility}" capitalVisibility)
|
|
foreach(state enabled disabled)
|
|
string(TOUPPER "${state}" capitalState)
|
|
|
|
set_property(TARGET "${target}" PROPERTY ${propertyPrefix}QT_${capitalState}_${capitalVisibility}_FEATURES "${${state}_${visibility}_features}")
|
|
endforeach()
|
|
endforeach()
|
|
|
|
set_property(TARGET "${target}"
|
|
PROPERTY ${propertyPrefix}QT_QMAKE_PUBLIC_CONFIG
|
|
"${__QtFeature_qmake_public_config}")
|
|
set_property(TARGET "${target}"
|
|
PROPERTY ${propertyPrefix}QT_QMAKE_PRIVATE_CONFIG
|
|
"${__QtFeature_qmake_private_config}")
|
|
set_property(TARGET "${target}"
|
|
PROPERTY ${propertyPrefix}QT_QMAKE_PUBLIC_QT_CONFIG
|
|
"${__QtFeature_qmake_public_qt_config}")
|
|
|
|
# Config values were the old-school features before actual configure.json features were
|
|
# implemented. Therefore "CONFIG+=foo" values should be considered features as well,
|
|
# so that CMake can find them when building qtmultimedia for example.
|
|
if(__QtFeature_qmake_public_config)
|
|
set_property(TARGET "${target}"
|
|
APPEND PROPERTY ${propertyPrefix}QT_ENABLED_PUBLIC_FEATURES
|
|
${__QtFeature_qmake_public_config})
|
|
endif()
|
|
if(__QtFeature_qmake_private_config)
|
|
set_property(TARGET "${target}"
|
|
APPEND PROPERTY ${propertyPrefix}QT_ENABLED_PRIVATE_FEATURES
|
|
${__QtFeature_qmake_private_config})
|
|
endif()
|
|
if(__QtFeature_qmake_public_qt_config)
|
|
set_property(TARGET "${target}"
|
|
APPEND PROPERTY ${propertyPrefix}QT_ENABLED_PUBLIC_FEATURES
|
|
${__QtFeature_qmake_public_qt_config})
|
|
endif()
|
|
|
|
qt_feature_copy_global_config_features_to_core(${target})
|
|
endif()
|
|
|
|
qt_feature_unset_state_vars()
|
|
endfunction()
|
|
|
|
macro(qt_feature_unset_state_vars)
|
|
unset(__QtFeature_library PARENT_SCOPE)
|
|
unset(__QtFeature_public_features PARENT_SCOPE)
|
|
unset(__QtFeature_private_features PARENT_SCOPE)
|
|
unset(__QtFeature_internal_features PARENT_SCOPE)
|
|
|
|
unset(__QtFeature_private_file PARENT_SCOPE)
|
|
unset(__QtFeature_public_file PARENT_SCOPE)
|
|
|
|
unset(__QtFeature_private_extra PARENT_SCOPE)
|
|
unset(__QtFeature_public_extra PARENT_SCOPE)
|
|
|
|
unset(__QtFeature_define_definitions PARENT_SCOPE)
|
|
unset(__QtFeature_custom_enabled_features PARENT_SCOPE)
|
|
unset(__QtFeature_custom_disabled_features PARENT_SCOPE)
|
|
unset(__QtFeature_only_evaluate_features PARENT_SCOPE)
|
|
unset(__QtFeature_only_record_summary_entries PARENT_SCOPE)
|
|
endmacro()
|
|
|
|
function(qt_feature_copy_global_config_features_to_core target)
|
|
# CMake doesn't support setting custom properties on exported INTERFACE libraries
|
|
# See https://gitlab.kitware.com/cmake/cmake/issues/19261.
|
|
# To circumvent that, copy the properties from GlobalConfig to Core target.
|
|
# This way the global features actually get set in the generated CoreTargets.cmake file.
|
|
if(target STREQUAL Core)
|
|
foreach(visibility public private)
|
|
string(TOUPPER "${visibility}" capitalVisibility)
|
|
foreach(state enabled disabled)
|
|
string(TOUPPER "${state}" capitalState)
|
|
|
|
set(core_property_name "QT_${capitalState}_${capitalVisibility}_FEATURES")
|
|
set(global_property_name "INTERFACE_${core_property_name}")
|
|
|
|
get_property(core_values TARGET Core PROPERTY ${core_property_name})
|
|
get_property(global_values TARGET GlobalConfig PROPERTY ${global_property_name})
|
|
|
|
set(total_values ${core_values} ${global_values})
|
|
set_property(TARGET Core PROPERTY ${core_property_name} ${total_values})
|
|
endforeach()
|
|
endforeach()
|
|
|
|
set(config_property_names
|
|
QT_QMAKE_PUBLIC_CONFIG QT_QMAKE_PRIVATE_CONFIG QT_QMAKE_PUBLIC_QT_CONFIG )
|
|
foreach(property_name ${config_property_names})
|
|
set(core_property_name "${property_name}")
|
|
set(global_property_name "INTERFACE_${core_property_name}")
|
|
|
|
get_property(core_values TARGET Core PROPERTY ${core_property_name})
|
|
get_property(global_values TARGET GlobalConfig PROPERTY ${global_property_name})
|
|
|
|
set(total_values ${core_values} ${global_values})
|
|
set_property(TARGET Core PROPERTY ${core_property_name} ${total_values})
|
|
endforeach()
|
|
endif()
|
|
endfunction()
|
|
|
|
function(qt_internal_detect_dirty_features)
|
|
# We need to clean up QT_FEATURE_*, but only once per configuration cycle
|
|
get_property(qt_feature_clean GLOBAL PROPERTY _qt_feature_clean)
|
|
if(NOT qt_feature_clean AND NOT QT_NO_FEATURE_AUTO_RESET)
|
|
message(STATUS "Checking for feature set changes")
|
|
set_property(GLOBAL PROPERTY _qt_feature_clean TRUE)
|
|
foreach(feature ${QT_KNOWN_FEATURES})
|
|
if(DEFINED "FEATURE_${feature}" AND
|
|
NOT "${QT_FEATURE_${feature}}" STREQUAL "${FEATURE_${feature}}")
|
|
message(" '${feature}' was changed from ${QT_FEATURE_${feature}} "
|
|
"to ${FEATURE_${feature}}")
|
|
set(dirty_build TRUE)
|
|
set_property(GLOBAL APPEND PROPERTY _qt_dirty_features "${feature}")
|
|
endif()
|
|
unset("QT_FEATURE_${feature}" CACHE)
|
|
endforeach()
|
|
|
|
set(QT_KNOWN_FEATURES "" CACHE INTERNAL "" FORCE)
|
|
|
|
if(dirty_build)
|
|
set_property(GLOBAL PROPERTY _qt_dirty_build TRUE)
|
|
message(WARNING
|
|
"Due to detected feature set changes, dependent features "
|
|
"will be re-computed automatically. This might cause a lot of files to be rebuilt. "
|
|
"To disable this behavior, configure with -DQT_NO_FEATURE_AUTO_RESET=ON")
|
|
endif()
|
|
endif()
|
|
endfunction()
|
|
|
|
# Builds either a string of source code or a whole project to determine whether the build is
|
|
# successful.
|
|
#
|
|
# Sets a TEST_${name}_OUTPUT variable with the build output, to the scope of the calling function.
|
|
# Sets a TEST_${name} cache variable to either TRUE or FALSE if the build is successful or not.
|
|
#
|
|
# The test is only run if a feature condition needs to evaluate the TEST_${name} variable. If you
|
|
# need the test result regardless of any feature conditions, call
|
|
# qt_run_config_compile_test right after qt_config_compile_test.
|
|
macro(qt_config_compile_test name)
|
|
set_property(GLOBAL APPEND PROPERTY _qtfeature_known_compile_tests ${name})
|
|
set_property(GLOBAL PROPERTY _qtfeature_compile_test_args_${name} ${ARGN})
|
|
if(QT_RUN_COMPILE_TESTS_IMMEDIATELY)
|
|
qt_run_config_compile_test(${name})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Runs a compile test that was defined with qt_config_compile_test.
|
|
function(qt_run_config_compile_test name)
|
|
if(DEFINED "TEST_${name}")
|
|
return()
|
|
endif()
|
|
|
|
get_property(test_args GLOBAL PROPERTY _qtfeature_compile_test_args_${name})
|
|
if("${test_args}" STREQUAL "")
|
|
message(FATAL_ERROR
|
|
"Can't find definition for compile test '${name}'. "
|
|
"The test probably wasn't defined with qt_config_compile_test."
|
|
)
|
|
endif()
|
|
cmake_parse_arguments(arg "" "LABEL;PROJECT_PATH;C_STANDARD;CXX_STANDARD"
|
|
"COMPILE_OPTIONS;LIBRARIES;CODE;PACKAGES;CMAKE_FLAGS" ${test_args})
|
|
|
|
if(arg_PROJECT_PATH)
|
|
message(STATUS "Performing Test ${arg_LABEL}")
|
|
|
|
set(flags "")
|
|
qt_get_platform_try_compile_vars(platform_try_compile_vars)
|
|
list(APPEND flags ${platform_try_compile_vars})
|
|
|
|
# If the repo has its own cmake modules, include those in the module path, so that various
|
|
# find_package calls work.
|
|
if(EXISTS "${PROJECT_SOURCE_DIR}/cmake")
|
|
set(must_append_module_path_flag TRUE)
|
|
set(flags_copy "${flags}")
|
|
set(flags)
|
|
foreach(flag IN LISTS flags_copy)
|
|
if(flag MATCHES "^-DCMAKE_MODULE_PATH:STRING=")
|
|
set(must_append_module_path_flag FALSE)
|
|
set(flag "${flag}\\;${PROJECT_SOURCE_DIR}/cmake")
|
|
endif()
|
|
list(APPEND flags "${flag}")
|
|
endforeach()
|
|
if(must_append_module_path_flag)
|
|
list(APPEND flags "-DCMAKE_MODULE_PATH:STRING=${PROJECT_SOURCE_DIR}/cmake")
|
|
endif()
|
|
endif()
|
|
|
|
# Pass which packages need to be found.
|
|
if(arg_PACKAGES)
|
|
set(packages_list "")
|
|
|
|
# Parse the package names, version, etc. An example would be:
|
|
# PACKAGE Foo 6 REQUIRED
|
|
# PACKAGE Bar 2 COMPONENTS Baz
|
|
foreach(p ${arg_PACKAGES})
|
|
if(p STREQUAL PACKAGE)
|
|
if(package_entry)
|
|
# Encode the ";" into "\;" to separate the arguments of a find_package call.
|
|
string(REPLACE ";" "\\;" package_entry_string "${package_entry}")
|
|
list(APPEND packages_list "${package_entry_string}")
|
|
endif()
|
|
|
|
set(package_entry "")
|
|
else()
|
|
list(APPEND package_entry "${p}")
|
|
endif()
|
|
endforeach()
|
|
# Parse final entry.
|
|
if(package_entry)
|
|
string(REPLACE ";" "\\;" package_entry_string "${package_entry}")
|
|
list(APPEND packages_list "${package_entry_string}")
|
|
endif()
|
|
|
|
# Encode the ";" again.
|
|
string(REPLACE ";" "\\;" packages_list "${packages_list}")
|
|
|
|
# The flags are separated by ';', the find_package entries by '\;',
|
|
# and the package parts of an entry by '\\;'.
|
|
# Example:
|
|
# WrapFoo\\;6\\;COMPONENTS\\;bar\;WrapBaz\\;5
|
|
list(APPEND flags "-DQT_CONFIG_COMPILE_TEST_PACKAGES:STRING=${packages_list}")
|
|
|
|
# Inside the project, the value of QT_CONFIG_COMPILE_TEST_PACKAGES is used in a foreach
|
|
# loop that calls find_package() for each package entry, and thus the variable expansion
|
|
# ends up calling something like find_package(WrapFoo;6;COMPONENTS;bar) aka
|
|
# find_package(WrapFoo 6 COMPONENTS bar).
|
|
endif()
|
|
|
|
# Pass which libraries need to be linked against.
|
|
if(arg_LIBRARIES)
|
|
set(link_flags "")
|
|
set(library_targets "")
|
|
# Separate targets from link flags or paths. This is to prevent configuration failures
|
|
# when the targets are not found due to missing packages.
|
|
foreach(lib ${arg_LIBRARIES})
|
|
string(FIND "${lib}" "::" is_library_target)
|
|
if(is_library_target EQUAL -1)
|
|
list(APPEND link_flags "${lib}")
|
|
else()
|
|
list(APPEND library_targets "${lib}")
|
|
endif()
|
|
endforeach()
|
|
if(link_flags)
|
|
list(APPEND flags "-DQT_CONFIG_COMPILE_TEST_LIBRARIES:STRING=${link_flags}")
|
|
endif()
|
|
if(library_targets)
|
|
list(APPEND flags
|
|
"-DQT_CONFIG_COMPILE_TEST_LIBRARY_TARGETS:STRING=${library_targets}")
|
|
endif()
|
|
endif()
|
|
|
|
# Pass override values for CMAKE_SYSTEM_{PREFIX|FRAMEWORK}_PATH.
|
|
if(DEFINED QT_CMAKE_SYSTEM_PREFIX_PATH_BACKUP)
|
|
set(path_list ${CMAKE_SYSTEM_PREFIX_PATH})
|
|
string(REPLACE ";" "\\;" path_list "${path_list}")
|
|
list(APPEND flags "-DQT_CONFIG_COMPILE_TEST_CMAKE_SYSTEM_PREFIX_PATH=${path_list}")
|
|
endif()
|
|
if(DEFINED QT_CMAKE_SYSTEM_FRAMEWORK_PATH_BACKUP)
|
|
set(path_list ${CMAKE_SYSTEM_FRAMEWORK_PATH})
|
|
string(REPLACE ";" "\\;" path_list "${path_list}")
|
|
list(APPEND flags "-DQT_CONFIG_COMPILE_TEST_CMAKE_SYSTEM_FRAMEWORK_PATH=${path_list}")
|
|
endif()
|
|
|
|
if(NOT arg_CMAKE_FLAGS)
|
|
set(arg_CMAKE_FLAGS "")
|
|
endif()
|
|
|
|
# CI passes the project dir of the Qt repository as absolute path without drive letter:
|
|
# \Users\qt\work\qt\qtbase
|
|
# Ensure that arg_PROJECT_PATH is an absolute path with drive letter:
|
|
# C:/Users/qt/work/qt/qtbase
|
|
# This works around CMake upstream issue #22534.
|
|
if(CMAKE_HOST_WIN32)
|
|
get_filename_component(arg_PROJECT_PATH "${arg_PROJECT_PATH}" REALPATH)
|
|
endif()
|
|
|
|
try_compile(
|
|
HAVE_${name} "${CMAKE_BINARY_DIR}/config.tests/${name}" "${arg_PROJECT_PATH}" "${name}"
|
|
CMAKE_FLAGS ${flags} ${arg_CMAKE_FLAGS}
|
|
OUTPUT_VARIABLE try_compile_output
|
|
)
|
|
|
|
if(${HAVE_${name}})
|
|
set(status_label "Success")
|
|
else()
|
|
set(status_label "Failed")
|
|
endif()
|
|
message(STATUS "Performing Test ${arg_LABEL} - ${status_label}")
|
|
else()
|
|
foreach(library IN ITEMS ${arg_LIBRARIES})
|
|
if(NOT TARGET "${library}")
|
|
# If the dependency looks like a cmake target, then make this compile test
|
|
# fail instead of cmake abort later via CMAKE_REQUIRED_LIBRARIES.
|
|
string(FIND "${library}" "::" cmake_target_namespace_separator)
|
|
if(NOT cmake_target_namespace_separator EQUAL -1)
|
|
message(STATUS "Performing Test ${arg_LABEL} - Failed because ${library} not found")
|
|
set(HAVE_${name} FALSE)
|
|
break()
|
|
endif()
|
|
endif()
|
|
endforeach()
|
|
|
|
if(NOT DEFINED HAVE_${name})
|
|
set(_save_CMAKE_C_STANDARD "${CMAKE_C_STANDARD}")
|
|
set(_save_CMAKE_C_STANDARD_REQUIRED "${CMAKE_C_STANDARD_REQUIRED}")
|
|
set(_save_CMAKE_CXX_STANDARD "${CMAKE_CXX_STANDARD}")
|
|
set(_save_CMAKE_CXX_STANDARD_REQUIRED "${CMAKE_CXX_STANDARD_REQUIRED}")
|
|
set(_save_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
|
|
set(_save_CMAKE_TRY_COMPILE_PLATFORM_VARIABLES "${CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}")
|
|
|
|
if(arg_C_STANDARD)
|
|
set(CMAKE_C_STANDARD "${arg_C_STANDARD}")
|
|
set(CMAKE_C_STANDARD_REQUIRED OFF)
|
|
endif()
|
|
|
|
if(arg_CXX_STANDARD)
|
|
if(${arg_CXX_STANDARD} LESS 23 OR ${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.20")
|
|
set(CMAKE_CXX_STANDARD "${arg_CXX_STANDARD}")
|
|
set(CMAKE_CXX_STANDARD_REQUIRED OFF)
|
|
endif()
|
|
endif()
|
|
|
|
set(CMAKE_REQUIRED_FLAGS ${arg_COMPILE_OPTIONS})
|
|
|
|
# Pass -stdlib=libc++ on if necessary
|
|
if (QT_FEATURE_stdlib_libcpp)
|
|
list(APPEND CMAKE_REQUIRED_FLAGS "-stdlib=libc++")
|
|
endif()
|
|
|
|
# For MSVC we need to explicitly pass -Zc:__cplusplus to get correct __cplusplus
|
|
# define values. According to common/msvc-version.conf the flag is supported starting
|
|
# with 1913.
|
|
# https://developercommunity.visualstudio.com/content/problem/139261/msvc-incorrectly-defines-cplusplus.html
|
|
# No support for the flag in upstream CMake as of 3.17.
|
|
# https://gitlab.kitware.com/cmake/cmake/issues/18837
|
|
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND MSVC_VERSION GREATER_EQUAL 1913)
|
|
list(APPEND CMAKE_REQUIRED_FLAGS "-Zc:__cplusplus")
|
|
endif()
|
|
|
|
# Let CMake load our custom platform modules.
|
|
if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
|
|
list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_MODULE_PATH)
|
|
endif()
|
|
|
|
set(_save_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
|
|
set(CMAKE_REQUIRED_LIBRARIES "${arg_LIBRARIES}")
|
|
|
|
_qt_internal_get_check_cxx_source_compiles_out_var(try_compile_output extra_args)
|
|
check_cxx_source_compiles(
|
|
"${arg_UNPARSED_ARGUMENTS} ${arg_CODE}" HAVE_${name} ${extra_args}
|
|
)
|
|
set(CMAKE_REQUIRED_LIBRARIES "${_save_CMAKE_REQUIRED_LIBRARIES}")
|
|
|
|
set(CMAKE_C_STANDARD "${_save_CMAKE_C_STANDARD}")
|
|
set(CMAKE_C_STANDARD_REQUIRED "${_save_CMAKE_C_STANDARD_REQUIRED}")
|
|
set(CMAKE_CXX_STANDARD "${_save_CMAKE_CXX_STANDARD}")
|
|
set(CMAKE_CXX_STANDARD_REQUIRED "${_save_CMAKE_CXX_STANDARD_REQUIRED}")
|
|
set(CMAKE_REQUIRED_FLAGS "${_save_CMAKE_REQUIRED_FLAGS}")
|
|
set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES "${_save_CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}")
|
|
endif()
|
|
endif()
|
|
|
|
# Note this is assigned to the parent scope, and is not a CACHE var, which means the value is
|
|
# only available on first configuration.
|
|
set(TEST_${name}_OUTPUT "${try_compile_output}" PARENT_SCOPE)
|
|
|
|
# Story the compile output for a test in a global property. It will only be available on first
|
|
# configuration, because we don't cache it across cmake invocations.
|
|
set_property(GLOBAL PROPERTY _qt_run_config_compile_test_output_${name} "${try_compile_output}")
|
|
|
|
set(TEST_${name} "${HAVE_${name}}" CACHE INTERNAL "${arg_LABEL}")
|
|
endfunction()
|
|
|
|
# This function should be used for passing required try compile platform variables to the
|
|
# project-based try_compile() call.
|
|
# out_var will be a list of -Dfoo=bar strings, suitable to pass to CMAKE_FLAGS.
|
|
function(qt_get_platform_try_compile_vars out_var)
|
|
# Use the regular variables that are used for source-based try_compile() calls.
|
|
set(flags "${CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}")
|
|
|
|
# Pass custom flags.
|
|
list(APPEND flags "CMAKE_C_FLAGS")
|
|
list(APPEND flags "CMAKE_C_FLAGS_DEBUG")
|
|
list(APPEND flags "CMAKE_C_FLAGS_RELEASE")
|
|
list(APPEND flags "CMAKE_C_FLAGS_RELWITHDEBINFO")
|
|
list(APPEND flags "CMAKE_CXX_FLAGS")
|
|
list(APPEND flags "CMAKE_CXX_FLAGS_DEBUG")
|
|
list(APPEND flags "CMAKE_CXX_FLAGS_RELEASE")
|
|
list(APPEND flags "CMAKE_CXX_FLAGS_RELWITHDEBINFO")
|
|
list(APPEND flags "CMAKE_OBJCOPY")
|
|
list(APPEND flags "CMAKE_EXE_LINKER_FLAGS")
|
|
|
|
# Pass toolchain files.
|
|
if(CMAKE_TOOLCHAIN_FILE)
|
|
list(APPEND flags "CMAKE_TOOLCHAIN_FILE")
|
|
endif()
|
|
if(VCPKG_CHAINLOAD_TOOLCHAIN_FILE)
|
|
list(APPEND flags "VCPKG_CHAINLOAD_TOOLCHAIN_FILE")
|
|
endif()
|
|
|
|
# Pass language standard flags.
|
|
list(APPEND flags "CMAKE_C_STANDARD")
|
|
list(APPEND flags "CMAKE_C_STANDARD_REQUIRED")
|
|
list(APPEND flags "CMAKE_CXX_STANDARD")
|
|
list(APPEND flags "CMAKE_CXX_STANDARD_REQUIRED")
|
|
|
|
# Pass -stdlib=libc++ on if necessary
|
|
if (QT_FEATURE_stdlib_libcpp)
|
|
if(CMAKE_CXX_FLAGS)
|
|
string(APPEND CMAKE_CXX_FLAGS " -stdlib=libc++")
|
|
else()
|
|
set(CMAKE_CXX_FLAGS "-stdlib=libc++")
|
|
endif()
|
|
endif()
|
|
|
|
# Assemble the list with regular options.
|
|
set(flags_cmd_line "")
|
|
foreach(flag ${flags})
|
|
if(${flag})
|
|
list(APPEND flags_cmd_line "-D${flag}=${${flag}}")
|
|
endif()
|
|
endforeach()
|
|
|
|
# Let CMake load our custom platform modules.
|
|
if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
|
|
list(APPEND flags_cmd_line "-DCMAKE_MODULE_PATH:STRING=${QT_CMAKE_DIR}/platforms")
|
|
endif()
|
|
|
|
# Pass darwin specific options.
|
|
# The architectures need to be passed explicitly to project-based try_compile calls even on
|
|
# macOS, so that arm64 compilation works on Apple silicon.
|
|
qt_internal_get_first_osx_arch(osx_first_arch)
|
|
if(osx_first_arch)
|
|
# Do what qmake does, aka when doing a simulator_and_device build, build the
|
|
# target architecture test only with the first given architecture, which should be the
|
|
# device architecture, aka some variation of "arm" (armv7, arm64).
|
|
list(APPEND flags_cmd_line "-DCMAKE_OSX_ARCHITECTURES:STRING=${osx_first_arch}")
|
|
endif()
|
|
if(UIKIT)
|
|
# Specify the sysroot, but only if not doing a simulator_and_device build.
|
|
# So keep the sysroot empty for simulator_and_device builds.
|
|
if(QT_APPLE_SDK)
|
|
list(APPEND flags_cmd_line "-DCMAKE_OSX_SYSROOT:STRING=${QT_APPLE_SDK}")
|
|
endif()
|
|
endif()
|
|
if(QT_NO_USE_FIND_PACKAGE_SYSTEM_ENVIRONMENT_PATH)
|
|
list(APPEND flags_cmd_line "-DCMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH:BOOL=OFF")
|
|
endif()
|
|
|
|
set("${out_var}" "${flags_cmd_line}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# Set out_var to the first value of CMAKE_OSX_ARCHITECTURES.
|
|
# Sets an empty string if no architecture is present.
|
|
function(qt_internal_get_first_osx_arch out_var)
|
|
set(value "")
|
|
if(CMAKE_OSX_ARCHITECTURES)
|
|
list(GET CMAKE_OSX_ARCHITECTURES 0 value)
|
|
endif()
|
|
set(${out_var} "${value}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_config_compile_test_x86simd extension label)
|
|
if (DEFINED TEST_X86SIMD_${extension})
|
|
return()
|
|
endif()
|
|
|
|
set(flags "-DSIMD:string=${extension}")
|
|
|
|
qt_get_platform_try_compile_vars(platform_try_compile_vars)
|
|
list(APPEND flags ${platform_try_compile_vars})
|
|
|
|
message(STATUS "Performing Test ${label} intrinsics")
|
|
try_compile("TEST_X86SIMD_${extension}"
|
|
"${CMAKE_CURRENT_BINARY_DIR}/config.tests/x86_simd_${extension}"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/config.tests/x86_simd"
|
|
x86_simd
|
|
CMAKE_FLAGS ${flags})
|
|
if(${TEST_X86SIMD_${extension}})
|
|
set(status_label "Success")
|
|
else()
|
|
set(status_label "Failed")
|
|
endif()
|
|
message(STATUS "Performing Test ${label} intrinsics - ${status_label}")
|
|
set(TEST_subarch_${extension} "${TEST_X86SIMD_${extension}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_config_compile_test_armintrin extension label)
|
|
if (DEFINED TEST_ARMINTRIN_${extension})
|
|
return()
|
|
endif()
|
|
|
|
set(flags "-DSIMD:string=${extension}")
|
|
|
|
qt_get_platform_try_compile_vars(platform_try_compile_vars)
|
|
list(APPEND flags ${platform_try_compile_vars})
|
|
|
|
message(STATUS "Performing Test ${label} intrinsics")
|
|
try_compile("TEST_ARMINTRIN_${extension}"
|
|
"${CMAKE_CURRENT_BINARY_DIR}/config.tests/armintrin_${extension}"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/config.tests/armintrin"
|
|
armintrin
|
|
CMAKE_FLAGS ${flags})
|
|
if(${TEST_ARMINTRIN_${extension}})
|
|
set(status_label "Success")
|
|
else()
|
|
set(status_label "Failed")
|
|
endif()
|
|
message(STATUS "Performing Test ${label} intrinsics - ${status_label}")
|
|
set(TEST_subarch_${extension} "${TEST_ARMINTRIN_${extension}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_config_compile_test_loongarchsimd extension label)
|
|
if (DEFINED TEST_LOONGARCHSIMD_${extension})
|
|
return()
|
|
endif()
|
|
|
|
set(flags "-DSIMD:string=${extension}")
|
|
|
|
qt_get_platform_try_compile_vars(platform_try_compile_vars)
|
|
list(APPEND flags ${platform_try_compile_vars})
|
|
|
|
message(STATUS "Performing Test ${label} intrinsics")
|
|
try_compile("TEST_LOONGARCHSIMD_${extension}"
|
|
"${CMAKE_CURRENT_BINARY_DIR}/config.tests/loongarch_simd_${extension}"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/config.tests/loongarch_simd"
|
|
loongarch_simd
|
|
CMAKE_FLAGS ${flags})
|
|
if(${TEST_LOONGARCHSIMD_${extension}})
|
|
set(status_label "Success")
|
|
else()
|
|
set(status_label "Failed")
|
|
endif()
|
|
message(STATUS "Performing Test ${label} intrinsics - ${status_label}")
|
|
set(TEST_subarch_${extension} "${TEST_LOONGARCHSIMD_${extension}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_config_compile_test_machine_tuple label)
|
|
if(DEFINED TEST_MACHINE_TUPLE OR NOT (LINUX OR HURD) OR ANDROID)
|
|
return()
|
|
endif()
|
|
|
|
message(STATUS "Performing Test ${label}")
|
|
execute_process(COMMAND "${CMAKE_CXX_COMPILER}" -dumpmachine
|
|
OUTPUT_VARIABLE output
|
|
OUTPUT_STRIP_TRAILING_WHITESPACE
|
|
RESULT_VARIABLE exit_code)
|
|
if(exit_code EQUAL 0)
|
|
set(status_label "Success")
|
|
else()
|
|
set(status_label "Failed")
|
|
endif()
|
|
message(STATUS "Performing Test ${label} - ${status_label}")
|
|
set(TEST_machine_tuple "${output}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_config_compiler_supports_flag_test name)
|
|
if(DEFINED "TEST_${name}")
|
|
return()
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg "" "LABEL;FLAG" "" ${ARGN})
|
|
check_cxx_compiler_flag("${arg_FLAG}" TEST_${name})
|
|
set(TEST_${name} "${TEST_${name}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
# gcc expects -fuse-ld=mold (no absolute path can be given) (gcc >= 12.1)
|
|
# or an 'ld' symlink to 'mold' in a dir that is passed via -B flag (gcc < 12.1)
|
|
#
|
|
# clang expects -fuse-ld=mold
|
|
# or -fuse-ld=<mold-abs-path>
|
|
# or --ldpath=<mold-abs-path> (clang >= 12)
|
|
# https://github.com/rui314/mold/#how-to-use
|
|
# TODO: In the gcc < 12.1 case, the qt_internal_check_if_linker_is_available(mold) check will
|
|
# always return TRUE because gcc will not error out if it is given a -B flag pointing to an
|
|
# invalid dir, as well as when the the symlink to the linker in the -B dir is not actually
|
|
# a valid linker.
|
|
# It would be nice to handle that case in a better way, but it's not that important
|
|
# given that gcc > 12.1 now supports -fuse-ld=mold
|
|
# NOTE: In comparison to clang, in the gcc < 12.1 case, we pass the full path to where mold is
|
|
# and that is recorded in PlatformCommonInternal's INTERFACE_LINK_OPTIONS target.
|
|
# Moving such a Qt to a different machine and trying to build another repo won't
|
|
# work because the recorded path will be invalid. This is not a problem with
|
|
# the gcc >= 12.1 case
|
|
function(qt_internal_get_mold_linker_flags out_var)
|
|
cmake_parse_arguments(PARSE_ARGV 1 arg "ERROR_IF_EMPTY" "" "")
|
|
|
|
find_program(QT_INTERNAL_LINKER_MOLD mold)
|
|
|
|
set(flag "")
|
|
if(QT_INTERNAL_LINKER_MOLD)
|
|
if(GCC)
|
|
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "12.1")
|
|
set(flag "-fuse-ld=mold")
|
|
else()
|
|
set(mold_linker_dir "${CMAKE_CURRENT_BINARY_DIR}/.qt_linker")
|
|
set(mold_linker_path "${mold_linker_dir}/ld")
|
|
if(NOT EXISTS "${mold_linker_dir}")
|
|
file(MAKE_DIRECTORY "${mold_linker_dir}")
|
|
endif()
|
|
if(NOT EXISTS "${mold_linker_path}")
|
|
file(CREATE_LINK
|
|
"${QT_INTERNAL_LINKER_MOLD}"
|
|
"${mold_linker_path}"
|
|
SYMBOLIC)
|
|
endif()
|
|
set(flag "-B${mold_linker_dir}")
|
|
endif()
|
|
elseif(CLANG)
|
|
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "12")
|
|
set(flag "--ld-path=mold")
|
|
else()
|
|
set(flag "-fuse-ld=mold")
|
|
endif()
|
|
endif()
|
|
endif()
|
|
if(arg_ERROR_IS_EMPTY AND NOT flag)
|
|
message(FATAL_ERROR "Could not determine the flags to use the mold linker.")
|
|
endif()
|
|
set(${out_var} "${flag}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_internal_get_active_linker_flags out_var)
|
|
set(flags "")
|
|
if(GCC OR CLANG)
|
|
if(QT_FEATURE_use_gold_linker)
|
|
list(APPEND flags "-fuse-ld=gold")
|
|
elseif(QT_FEATURE_use_bfd_linker)
|
|
list(APPEND flags "-fuse-ld=bfd")
|
|
elseif(QT_FEATURE_use_lld_linker)
|
|
list(APPEND flags "-fuse-ld=lld")
|
|
elseif(QT_FEATURE_use_mold_linker)
|
|
qt_internal_get_mold_linker_flags(mold_flags ERROR_IF_EMPTY)
|
|
list(APPEND flags "${mold_flags}")
|
|
endif()
|
|
endif()
|
|
set(${out_var} "${flags}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_internal_check_if_linker_is_available name)
|
|
if(DEFINED "TEST_${name}")
|
|
return()
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg "" "LABEL;FLAG" "" ${ARGN})
|
|
set(flags "${arg_FLAG}")
|
|
|
|
set(CMAKE_REQUIRED_LINK_OPTIONS ${flags})
|
|
check_cxx_source_compiles("int main() { return 0; }" TEST_${name})
|
|
set(TEST_${name} "${TEST_${name}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_config_linker_supports_flag_test name)
|
|
if(DEFINED "TEST_${name}")
|
|
return()
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg "" "LABEL;FLAG" "" ${ARGN})
|
|
if(GCC OR CLANG)
|
|
set(flags "-Wl,--fatal-warnings,${arg_FLAG}")
|
|
elseif(MSVC)
|
|
set(flags "${arg_FLAG}")
|
|
else()
|
|
# We don't know how to pass linker options in a way that
|
|
# it reliably fails, so assume the detection failed.
|
|
set(TEST_${name} "0" CACHE INTERNAL "${label}")
|
|
return()
|
|
endif()
|
|
|
|
# Pass the linker that the main project uses to the compile test.
|
|
qt_internal_get_active_linker_flags(linker_flags)
|
|
if(linker_flags)
|
|
list(PREPEND flags ${linker_flags})
|
|
endif()
|
|
|
|
set(CMAKE_REQUIRED_LINK_OPTIONS ${flags})
|
|
check_cxx_source_compiles("int main() { return 0; }" TEST_${name})
|
|
set(TEST_${name} "${TEST_${name}}" CACHE INTERNAL "${label}")
|
|
endfunction()
|
|
|
|
function(qt_make_features_available target)
|
|
if(NOT "${target}" MATCHES "^${QT_CMAKE_EXPORT_NAMESPACE}::[a-zA-Z0-9_-]*$")
|
|
message(FATAL_ERROR "${target} does not match ${QT_CMAKE_EXPORT_NAMESPACE}::[a-zA-Z0-9_-]*. INVALID NAME.")
|
|
endif()
|
|
if(NOT TARGET ${target})
|
|
message(FATAL_ERROR "${target} not found.")
|
|
endif()
|
|
|
|
get_target_property(target_type "${target}" TYPE)
|
|
if("${target_type}" STREQUAL "INTERFACE_LIBRARY")
|
|
set(property_prefix "INTERFACE_")
|
|
else()
|
|
set(property_prefix "")
|
|
endif()
|
|
foreach(visibility IN ITEMS PUBLIC PRIVATE)
|
|
set(value ON)
|
|
foreach(state IN ITEMS ENABLED DISABLED)
|
|
get_target_property(features "${target}" ${property_prefix}QT_${state}_${visibility}_FEATURES)
|
|
if("${features}" STREQUAL "features-NOTFOUND")
|
|
continue()
|
|
endif()
|
|
foreach(feature IN ITEMS ${features})
|
|
if (DEFINED "QT_FEATURE_${feature}" AND NOT "${QT_FEATURE_${feature}}" STREQUAL "${value}")
|
|
message(WARNING
|
|
"This project was initially configured with the Qt feature \"${feature}\" "
|
|
"set to \"${QT_FEATURE_${feature}}\". While loading the "
|
|
"\"${target}\" package, the value of the feature "
|
|
"has changed to \"${value}\". That might cause a project rebuild due to "
|
|
"updated C++ headers. \n"
|
|
"In case of build issues, consider removing the CMakeCache.txt file and "
|
|
"reconfiguring the project."
|
|
)
|
|
endif()
|
|
set(QT_FEATURE_${feature} "${value}" CACHE INTERNAL "Qt feature: ${feature} (from target ${target})")
|
|
endforeach()
|
|
set(value OFF)
|
|
endforeach()
|
|
endforeach()
|
|
endfunction()
|