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# This bit is taken from KDE ECMQueryQt module.
include(CheckLanguage)
check_language(CXX)
if (CMAKE_CXX_COMPILER)
# Enable the CXX language to let CMake look for config files in library dirs.
# See: https://gitlab.kitware.com/cmake/cmake/-/issues/23266
enable_language(CXX)
endif()
# QUIET to accommodate the TRY option
find_package(Qt6 COMPONENTS CoreTools QUIET CONFIG)
if (TARGET Qt6::qtpaths)
get_target_property(_qtpaths_executable Qt6::qtpaths LOCATION)
set(QUERY_EXECUTABLE ${_qtpaths_executable}
CACHE FILEPATH "Location of the Qt6 Query Executable")
endif()
function(lxqt_query_qt result_variable qt_variable)
set(options IGNORE_ERRORS)
set(oneValueArgs)
set(multiValueArgs)
cmake_parse_arguments(ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if(NOT QUERY_EXECUTABLE)
if (ARGS_IGNORE_ERRORS)
set(${result_variable} "" PARENT_SCOPE)
message(STATUS "No Qt6 Query Executable binary found. Can't check ${qt_variable} as required")
return()
else()
message(FATAL_ERROR "No Qt6 Query Executable binary found. Can't check ${qt_variable} as required")
endif()
endif()
execute_process(
COMMAND ${QUERY_EXECUTABLE} --query "${qt_variable}"
RESULT_VARIABLE return_code
OUTPUT_VARIABLE output
)
if(return_code EQUAL 0)
string(STRIP "${output}" output)
file(TO_CMAKE_PATH "${output}" output_path)
set(${result_variable} "${output_path}" PARENT_SCOPE)
else()
if (ARGS_IGNORE_ERRORS)
set(${result_variable} "" PARENT_SCOPE)
return()
else()
message(WARNING "Failed call: ${QUERY_EXECUTABLE} --query \"${qt_variable}\"")
message(FATAL_ERROR "Qt6 Query Executable call failed: ${return_code}")
endif()
endif()
endfunction()
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