101 lines
3.6 KiB
CMake
101 lines
3.6 KiB
CMake
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# SPDX-FileCopyrightText: 2014 Rohan Garg <rohan16garg@gmail.com>
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# SPDX-FileCopyrightText: 2014 Alex Merry <alex.merry@kde.org>
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# SPDX-FileCopyrightText: 2014-2016 Aleix Pol <aleixpol@kde.org>
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# SPDX-FileCopyrightText: 2017 Friedrich W. H. Kossebau <kossebau@kde.org>
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# SPDX-FileCopyrightText: 2022 Ahmad Samir <a.samir78@gmail.com>
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#[=======================================================================[.rst:
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ECMQueryQt
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---------------
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This module can be used to query the installation paths used by Qt.
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For Qt5 this uses ``qmake``, and for Qt6 this used ``qtpaths`` (the latter has built-in
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support to query the paths of a target platform when cross-compiling).
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This module defines the following function:
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::
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ecm_query_qt(<result_variable> <qt_variable> [TRY])
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Passing ``TRY`` will result in the method not making the build fail if the executable
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used for querying has not been found, but instead simply print a warning message and
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return an empty string.
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Example usage:
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.. code-block:: cmake
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include(ECMQueryQt)
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ecm_query_qt(bin_dir QT_INSTALL_BINS)
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If the call succeeds ``${bin_dir}`` will be set to ``<prefix>/path/to/bin/dir`` (e.g.
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``/usr/lib64/qt/bin/``).
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Since: 5.93
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#]=======================================================================]
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include(${CMAKE_CURRENT_LIST_DIR}/QtVersionOption.cmake)
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include(CheckLanguage)
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check_language(CXX)
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if (CMAKE_CXX_COMPILER)
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# Enable the CXX language to let CMake look for config files in library dirs.
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# See: https://gitlab.kitware.com/cmake/cmake/-/issues/23266
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enable_language(CXX)
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endif()
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if (QT_MAJOR_VERSION STREQUAL "5")
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# QUIET to accommodate the TRY option
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find_package(Qt${QT_MAJOR_VERSION}Core QUIET)
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if(TARGET Qt5::qmake)
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get_target_property(_qmake_executable_default Qt5::qmake LOCATION)
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set(QUERY_EXECUTABLE ${_qmake_executable_default}
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CACHE FILEPATH "Location of the Qt5 qmake executable")
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set(_exec_name_text "Qt5 qmake")
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set(_cli_option "-query")
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endif()
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elseif(QT_MAJOR_VERSION STREQUAL "6")
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# QUIET to accommodate the TRY option
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find_package(Qt6 COMPONENTS CoreTools QUIET CONFIG)
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if (TARGET Qt6::qtpaths)
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get_target_property(_qtpaths_executable Qt6::qtpaths LOCATION)
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set(QUERY_EXECUTABLE ${_qtpaths_executable}
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CACHE FILEPATH "Location of the Qt6 qtpaths executable")
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set(_exec_name_text "Qt6 qtpaths")
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set(_cli_option "--query")
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endif()
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endif()
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function(ecm_query_qt result_variable qt_variable)
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set(options TRY)
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set(oneValueArgs)
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set(multiValueArgs)
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cmake_parse_arguments(ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(NOT QUERY_EXECUTABLE)
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if(ARGS_TRY)
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set(${result_variable} "" PARENT_SCOPE)
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message(STATUS "No ${_exec_name_text} executable found. Can't check ${qt_variable}")
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return()
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else()
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message(FATAL_ERROR "No ${_exec_name_text} executable found. Can't check ${qt_variable} as required")
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endif()
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endif()
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execute_process(
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COMMAND ${QUERY_EXECUTABLE} ${_cli_option} "${qt_variable}"
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RESULT_VARIABLE return_code
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OUTPUT_VARIABLE output
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)
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if(return_code EQUAL 0)
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string(STRIP "${output}" output)
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file(TO_CMAKE_PATH "${output}" output_path)
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set(${result_variable} "${output_path}" PARENT_SCOPE)
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else()
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message(WARNING "Failed call: ${_command} \"${qt_variable}\"")
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message(FATAL_ERROR "${_exec_name_text} call failed: ${return_code}")
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endif()
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endfunction()
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