8c14b0c02f
Instead of duplicating file names that need to be include()'ed in two different places if the files are meant to be used in both Qt builds and public user projects and then also mention the name when installing, extract the file names into lists returned by functions. Call these functions where needed to iteratively include() the files as well as install them, without having to remember updating multiple code locations. The new functions return the following list of file names: - upstream cmake modules that need to be included during a Qt build - public (Qt build and user project) cmake helpers that need to be included and installed - private (Qt build only) cmake helpers that need to be included and installed - public files that need to be installed, but not included - private files that need to be installed, but not included We also generate the list of public files to include in Qt6Config.cmake. Task-number: QTBUG-86035 Change-Id: I1e7287f4e1d041c723f144ba9626b34f873c4891 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
1421 lines
56 KiB
CMake
1421 lines
56 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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cmake_parse_arguments(PARSE_ARGV 1 arg
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"PRIVATE;PUBLIC"
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"LABEL;PURPOSE;SECTION"
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"AUTODETECT;CONDITION;ENABLE;DISABLE;EMIT_IF")
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_qt_internal_validate_all_args_are_parsed(arg)
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set(_QT_FEATURE_DEFINITION_${feature} ${ARGN} PARENT_SCOPE)
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# Register feature for future use:
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if (arg_PUBLIC)
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list(APPEND __QtFeature_public_features "${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 ${__QtFeature_internal_features} PARENT_SCOPE)
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endfunction()
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function(qt_evaluate_to_boolean expressionVar)
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if(${${expressionVar}})
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set(${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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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 ${stringCompareResult})
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else()
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string(FIND "${member}" "QT_FEATURE_" idx)
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if(idx EQUAL 0)
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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 "${nestingLevel} - 1")
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if(nestingLevel EQUAL 0)
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break()
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endif()
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elseif("${member}" STREQUAL "(")
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math(EXPR nestingLevel "${nestingLevel} + 1")
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endif()
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math(EXPR memberIdx "${memberIdx} + 1")
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endwhile()
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endif()
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set(${outIdx} ${memberIdx} PARENT_SCOPE)
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set(${resultVar} ${result} PARENT_SCOPE)
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endfunction()
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function(qt_evaluate_config_expression resultVar)
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qt_internal_evaluate_config_expression(result unused 0 ${ARGN})
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set("${resultVar}" "${result}" PARENT_SCOPE)
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endfunction()
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function(_qt_internal_get_feature_condition_keywords out_var)
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set(keywords "EQUAL" "LESS" "LESS_EQUAL" "GREATER" "GREATER_EQUAL" "STREQUAL" "STRLESS"
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"STRLESS_EQUAL" "STRGREATER" "STRGREATER_EQUAL" "VERSION_EQUAL" "VERSION_LESS"
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"VERSION_LESS_EQUAL" "VERSION_GREATER" "VERSION_GREATER_EQUAL" "MATCHES"
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"EXISTS" "COMMAND" "DEFINED" "NOT" "AND" "OR" "TARGET" "EXISTS" "IN_LIST" "(" ")")
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set(${out_var} "${keywords}" PARENT_SCOPE)
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endfunction()
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function(_qt_internal_dump_expression_values expression_dump expression)
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set(dump "")
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set(skipNext FALSE)
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set(isTargetExpression FALSE)
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_qt_internal_get_feature_condition_keywords(keywords)
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list(LENGTH expression length)
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math(EXPR length "${length}-1")
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if(${length} LESS 0)
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return()
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endif()
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foreach(memberIdx RANGE ${length})
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if(${skipNext})
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set(skipNext FALSE)
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continue()
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endif()
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list(GET expression ${memberIdx} member)
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if(NOT "${member}" IN_LIST keywords)
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string(FIND "${member}" "QT_FEATURE_" idx)
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if(idx EQUAL 0)
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if(NOT DEFINED ${member})
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list(APPEND dump "${member} not evaluated")
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else()
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list(APPEND dump "${member} = \"${${member}}\"")
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endif()
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elseif(isTargetExpression)
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set(targetExpression "TARGET;${member}")
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if(${targetExpression})
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list(APPEND dump "TARGET ${member} found")
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else()
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list(APPEND dump "TARGET ${member} not found")
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endif()
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else()
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list(APPEND dump "${member} = \"${${member}}\"")
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endif()
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set(isTargetExpression FALSE)
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set(skipNext FALSE)
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elseif("${member}" STREQUAL "TARGET")
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set(isTargetExpression TRUE)
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elseif("${member}" STREQUAL "STREQUAL")
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set(skipNext TRUE)
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else()
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set(skipNext FALSE)
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set(isTargetExpression FALSE)
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endif()
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endforeach()
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string(JOIN "\n " ${expression_dump} ${dump})
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set(${expression_dump} "${${expression_dump}}" PARENT_SCOPE)
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endfunction()
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# Stores the user provided value to FEATURE_${feature} if provided.
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# If not provided, stores ${computed} instead.
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# ${computed} is also stored when reconfiguring and the condition does not align with the user
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# provided value.
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#
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function(qt_feature_check_and_save_user_provided_value
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resultVar feature condition condition_expression computed label)
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if (DEFINED "FEATURE_${feature}")
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# Revisit new user provided value
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set(user_value "${FEATURE_${feature}}")
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string(TOUPPER "${user_value}" user_value_upper)
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set(result "${user_value_upper}")
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# If ${feature} depends on another dirty feature, reset the ${feature} value to
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# ${computed}.
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get_property(dirty_build GLOBAL PROPERTY _qt_dirty_build)
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if(dirty_build)
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_qt_internal_feature_compute_feature_dependencies(deps "${feature}")
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if(deps)
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get_property(dirty_features GLOBAL PROPERTY _qt_dirty_features)
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foreach(dirty_feature ${dirty_features})
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if(dirty_feature IN_LIST deps AND NOT "${result}" STREQUAL "${computed}")
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set(result "${computed}")
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message(WARNING
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"Auto-resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
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"'${computed}', "
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"because the dependent feature '${dirty_feature}' was marked dirty.")
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# Append ${feature} as a new dirty feature.
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set_property(GLOBAL APPEND PROPERTY _qt_dirty_features "${feature}")
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break()
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endif()
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endforeach()
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endif()
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# If the build is marked as dirty and the feature doesn't meet its condition,
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# reset its value to the computed one, which is likely OFF.
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if(NOT condition AND result)
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set(result "${computed}")
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message(WARNING "Resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
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"'${computed}' because it doesn't meet its condition after reconfiguration. "
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"Condition expression is: '${condition_expression}'")
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endif()
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endif()
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set(bool_values OFF NO FALSE N ON YES TRUE Y)
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if ((result IN_LIST bool_values) OR (result GREATER_EQUAL 0))
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# All good!
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else()
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message(FATAL_ERROR
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"Sanity check failed: FEATURE_${feature} has invalid value \"${result}\"!")
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endif()
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# Fix-up user-provided values
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set("FEATURE_${feature}" "${result}" CACHE BOOL "${label}" FORCE)
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else()
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# Initial setup:
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set(result "${computed}")
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set("FEATURE_${feature}" "${result}" CACHE BOOL "${label}")
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endif()
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set("${resultVar}" "${result}" PARENT_SCOPE)
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endfunction()
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# Saves the final user value to QT_FEATURE_${feature}, after checking that the condition is met.
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macro(qt_feature_check_and_save_internal_value
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feature saved_user_value condition label conditionExpression)
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if(${saved_user_value})
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set(result ON)
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else()
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set(result OFF)
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endif()
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if ((NOT condition) AND result)
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_qt_internal_dump_expression_values(conditionDump "${conditionExpression}")
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string(JOIN " " conditionString ${conditionExpression})
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qt_configure_add_report_error("Feature \"${feature}\": Forcing to \"${result}\" breaks its \
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condition:\n ${conditionString}\nCondition values dump:\n ${conditionDump}\n" RECORD_ON_FEATURE_EVALUATION)
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endif()
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if (DEFINED "QT_FEATURE_${feature}")
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message(FATAL_ERROR "Feature ${feature} is already defined when evaluating configure.cmake features for ${target}.")
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endif()
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set(QT_FEATURE_${feature} "${result}" CACHE INTERNAL "Qt feature: ${feature}")
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# Add feature to build feature collection
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list(APPEND QT_KNOWN_FEATURES "${feature}")
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set(QT_KNOWN_FEATURES "${QT_KNOWN_FEATURES}" CACHE INTERNAL "" FORCE)
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endmacro()
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macro(_qt_internal_parse_feature_definition feature)
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cmake_parse_arguments(arg
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"PRIVATE;PUBLIC"
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"LABEL;PURPOSE;SECTION;"
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"AUTODETECT;CONDITION;ENABLE;DISABLE;EMIT_IF"
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${_QT_FEATURE_DEFINITION_${feature}})
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endmacro()
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# The build system stores 2 CMake cache variables for each feature, to allow detecting value changes
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# during subsequent reconfigurations.
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#
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#
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# `FEATURE_foo` stores the user provided feature value for the current configuration run.
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# It can be set directly by the user, or derived from INPUT_foo (also set by the user).
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#
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# If a value is not provided on initial configuration, the value will be auto-computed based on the
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# various conditions of the feature.
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# TODO: Document the various conditions and how they relate to each other.
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#
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#
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# `QT_FEATURE_foo` stores the value of the feature from the previous configuration run.
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# Its value is updated once with the newest user provided value after some checks are performed.
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#
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# This variable also serves as the main source of truth throughout the build system code to check
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# if the feature is enabled, e.g. if(QT_FEATURE_foo)
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#
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# It is not meant to be set by the user. It is only modified by the build system.
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#
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# Comparing the values of QT_FEATURE_foo and FEATURE_foo, the build system can detect whether
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# the user changed the value for a feature and thus recompute any dependent features.
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#
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function(qt_evaluate_feature feature)
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# If the feature was already evaluated as dependency nothing to do here.
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if(DEFINED "QT_FEATURE_${feature}")
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return()
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endif()
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if(NOT DEFINED _QT_FEATURE_DEFINITION_${feature})
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qt_debug_print_variables(DEDUP MATCH "^QT_FEATURE")
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message(FATAL_ERROR "Attempting to evaluate feature ${feature} but its definition is missing. Either the feature does not exist or a dependency to the module that defines it is missing")
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endif()
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_qt_internal_parse_feature_definition("${feature}")
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if("${arg_ENABLE}" STREQUAL "")
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set(arg_ENABLE OFF)
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endif()
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if("${arg_DISABLE}" STREQUAL "")
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set(arg_DISABLE OFF)
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endif()
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if("${arg_AUTODETECT}" STREQUAL "")
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set(arg_AUTODETECT ON)
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endif()
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if("${arg_CONDITION}" STREQUAL "")
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set(condition ON)
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else()
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qt_evaluate_config_expression(condition ${arg_CONDITION})
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endif()
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qt_evaluate_config_expression(disable_result ${arg_DISABLE})
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qt_evaluate_config_expression(enable_result ${arg_ENABLE})
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qt_evaluate_config_expression(auto_detect ${arg_AUTODETECT})
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if(${disable_result})
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set(computed OFF)
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elseif((${enable_result}) OR (${auto_detect}))
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set(computed ${condition})
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else()
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# feature not auto-detected and not explicitly enabled
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set(computed OFF)
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endif()
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if("${arg_EMIT_IF}" STREQUAL "")
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set(emit_if ON)
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else()
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qt_evaluate_config_expression(emit_if ${arg_EMIT_IF})
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endif()
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qt_internal_compute_feature_value_from_possible_input("${feature}")
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# Warn about a feature which is not emitted, but the user explicitly provided a value for it.
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if(NOT emit_if AND DEFINED FEATURE_${feature})
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set(msg "")
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string(APPEND msg
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"Feature ${feature} is insignificant in this configuration, "
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"ignoring related command line option(s).")
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qt_configure_add_report_entry(TYPE WARNING MESSAGE "${msg}")
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# Remove the cache entry so that the warning is not persisted and shown on every
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# reconfiguration.
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unset(FEATURE_${feature} CACHE)
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endif()
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# Only save the user provided value if the feature was emitted.
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if(emit_if)
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qt_feature_check_and_save_user_provided_value(
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saved_user_value
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"${feature}" "${condition}" "${arg_CONDITION}" "${computed}" "${arg_LABEL}")
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else()
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# Make sure the feature internal value is OFF if not emitted.
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set(saved_user_value OFF)
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endif()
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qt_feature_check_and_save_internal_value(
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"${feature}" "${saved_user_value}" "${condition}" "${arg_LABEL}" "${arg_CONDITION}")
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# Store each feature's label for summary info.
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set(QT_FEATURE_LABEL_${feature} "${arg_LABEL}" CACHE INTERNAL "")
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endfunction()
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# Collect feature names that ${feature} depends on, by inspecting the given expression.
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function(_qt_internal_feature_extract_feature_dependencies_from_expression out_var expression)
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list(LENGTH expression length)
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math(EXPR length "${length}-1")
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if(length LESS 0)
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set(${out_var} "" PARENT_SCOPE)
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return()
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endif()
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set(deps "")
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foreach(memberIdx RANGE ${length})
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list(GET expression ${memberIdx} member)
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if(member MATCHES "^QT_FEATURE_(.+)")
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list(APPEND deps "${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)
|
|
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 ${QT_KNOWN_FEATURES})
|
|
qt_internal_compute_feature_value_from_possible_input("${feature}")
|
|
|
|
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 "${feature}")
|
|
|
|
# If the user changed the value of the feature directly (e.g by editing
|
|
# CMakeCache.txt), and not via its associated INPUT variable, unset the INPUT cache
|
|
# variable before it is used in feature evaluation, to ensure a stale value doesn't
|
|
# influence other feature values, especially when QT_INTERNAL_CALLED_FROM_CONFIGURE
|
|
# is TRUE and the INPUT_foo variable is not passed.
|
|
# e.g. first configure -no-gui, then manually toggle FEATURE_gui to ON in
|
|
# CMakeCache.txt, then reconfigure (with the configure script) without -no-gui.
|
|
# Without this unset(), we'd have switched FEATURE_gui to OFF again.
|
|
if(NOT FEATURE_${feature}_computed_from_input)
|
|
unset("INPUT_${feature}" CACHE)
|
|
endif()
|
|
endif()
|
|
unset("QT_FEATURE_${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()
|
|
|
|
macro(qt_internal_compute_features_from_possible_inputs)
|
|
# Pre-calculate the developer_build feature if it's set by the user via the I
|
|
# NPUT_developer_build variable when using the configure script. When not using configure, don't
|
|
# take the INPUT variable into account, so that users can toggle the feature directly in the
|
|
# cache or via IDE.
|
|
qt_internal_compute_feature_value_from_possible_input(developer_build)
|
|
|
|
# Pre-calculate the no_prefix feature if it's set by configure via INPUT_no_prefix.
|
|
# This needs to be done before qtbase/configure.cmake is processed.
|
|
qt_internal_compute_feature_value_from_possible_input(no_prefix)
|
|
endmacro()
|
|
|
|
function(qt_config_compile_test name)
|
|
if(DEFINED "TEST_${name}")
|
|
return()
|
|
endif()
|
|
|
|
cmake_parse_arguments(arg "" "LABEL;PROJECT_PATH;C_STANDARD;CXX_STANDARD"
|
|
"COMPILE_OPTIONS;LIBRARIES;CODE;PACKAGES;CMAKE_FLAGS" ${ARGN})
|
|
|
|
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} ${arg_CMAKE_FLAGS})
|
|
|
|
if(${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 ${arg_COMPILE_OPTIONS})
|
|
|
|
# Pass -stdlib=libc++ on if necessary
|
|
if (INPUT_stdlib_libcpp OR QT_FEATURE_stdlib_libcpp)
|
|
list(APPEND CMAKE_REQUIRED_FLAGS "-stdlib=libc++")
|
|
endif()
|
|
|
|
# For MSVC we need to explicitly pass -Zc:__cplusplus to get correct __cplusplus
|
|
# define values. According to common/msvc-version.conf the flag is supported starting
|
|
# with 1913.
|
|
# https://developercommunity.visualstudio.com/content/problem/139261/msvc-incorrectly-defines-cplusplus.html
|
|
# No support for the flag in upstream CMake as of 3.17.
|
|
# https://gitlab.kitware.com/cmake/cmake/issues/18837
|
|
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND MSVC_VERSION GREATER_EQUAL 1913)
|
|
list(APPEND CMAKE_REQUIRED_FLAGS "-Zc:__cplusplus")
|
|
endif()
|
|
|
|
# Let CMake load our custom platform modules.
|
|
if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
|
|
list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_MODULE_PATH)
|
|
endif()
|
|
|
|
set(_save_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
|
|
set(CMAKE_REQUIRED_LIBRARIES "${arg_LIBRARIES}")
|
|
check_cxx_source_compiles("${arg_UNPARSED_ARGUMENTS} ${arg_CODE}" HAVE_${name})
|
|
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 "${_save_CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}")
|
|
endif()
|
|
endif()
|
|
|
|
set(TEST_${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 (INPUT_stdlib_libcpp OR 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=${osx_first_arch}")
|
|
endif()
|
|
if(UIKIT)
|
|
# Specify the sysroot, but only if not doing a simulator_and_device build.
|
|
# So keep the sysroot empty for simulator_and_device builds.
|
|
if(QT_UIKIT_SDK)
|
|
list(APPEND flags_cmd_line "-DCMAKE_OSX_SYSROOT:STRING=${QT_UIKIT_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_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" "" ${ARGN})
|
|
set(flags "-Wl,${arg_FLAG}")
|
|
|
|
# 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()
|