qt6windows7/cmake/qt.toolchain.cmake.in
2023-10-29 23:33:08 +01:00

168 lines
7.7 KiB
CMake

set(__qt_toolchain_used_variables
QT_CHAINLOAD_TOOLCHAIN_FILE
QT_TOOLCHAIN_INCLUDE_FILE
QT_TOOLCHAIN_RELOCATABLE_CMAKE_DIR
QT_TOOLCHAIN_RELOCATABLE_PREFIX
QT_ADDITIONAL_PACKAGES_PREFIX_PATH
)
@init_additional_used_variables@
# Make cache variables used by this toolchain file available to the
# try_compile command that operates on sources files.
list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES ${__qt_toolchain_used_variables})
list(REMOVE_DUPLICATES CMAKE_TRY_COMPILE_PLATFORM_VARIABLES)
# Turn the environment variables that are created at the end of this
# file into proper variables. This is needed for try_compile calls
# that operate on whole projects.
if($ENV{_QT_TOOLCHAIN_VARS_INITIALIZED})
foreach(var ${__qt_toolchain_used_variables})
set(${var} "$ENV{_QT_TOOLCHAIN_${var}}")
endforeach()
endif()
@init_original_toolchain_file@
@init_vcpkg@
@init_platform@
if(NOT "${QT_CHAINLOAD_TOOLCHAIN_FILE}" STREQUAL "")
set(__qt_chainload_toolchain_file "${QT_CHAINLOAD_TOOLCHAIN_FILE}")
endif()
if(__qt_chainload_toolchain_file)
get_filename_component(__qt_chainload_toolchain_file_real_path
"${__qt_chainload_toolchain_file}" REALPATH)
if(__qt_chainload_toolchain_file_real_path STREQUAL CMAKE_CURRENT_LIST_FILE)
message(FATAL_ERROR
"Woah, the Qt toolchain file tried to include itself recursively! '${__qt_chainload_toolchain_file}' "
"Make sure to remove qtbase/CMakeCache.txt and reconfigure qtbase with 'cmake' "
"rather than 'qt-cmake', and then you can reconfigure your own project."
)
elseif(NOT EXISTS "${__qt_chainload_toolchain_file_real_path}")
message(WARNING "The toolchain file to be chainloaded "
"'${__qt_chainload_toolchain_file}' does not exist.")
else()
include("${__qt_chainload_toolchain_file}")
set(__qt_chainload_toolchain_file_included TRUE)
endif()
unset(__qt_chainload_toolchain_file)
endif()
@init_post_chainload_toolchain@
# Compute dynamically the Qt installation prefix from the location of this file. This allows
# the usage of the toolchain file when the Qt installation is relocated.
get_filename_component(QT_TOOLCHAIN_RELOCATABLE_INSTALL_PREFIX
${CMAKE_CURRENT_LIST_DIR}/../@qt_path_from_cmake_config_dir_to_prefix@
ABSOLUTE)
# Compute the path to the installed Qt lib/cmake folder.
# We assume that the Qt toolchain location is inside the CMake Qt6 package, and thus the directory
# one level higher is what we're looking for.
get_filename_component(QT_TOOLCHAIN_RELOCATABLE_CMAKE_DIR "${CMAKE_CURRENT_LIST_DIR}/.." ABSOLUTE)
# REROOT_PATH_ISSUE_MARKER
# There's a subdirectory check in cmake's cmFindCommon::RerootPaths() function, that doesn't handle
# the case of CMAKE_PREFIX_PATH == CMAKE_FIND_ROOT_PATH for a particular pair of entries.
# Instead of collapsing the search prefix (which is the case when one is a subdir of the other),
# it concatenates them creating an invalid path. Workaround it by setting the root path to the
# Qt install prefix, and the prefix path to the lib/cmake subdir.
list(PREPEND CMAKE_PREFIX_PATH "${QT_TOOLCHAIN_RELOCATABLE_CMAKE_DIR}")
list(PREPEND CMAKE_FIND_ROOT_PATH "${QT_TOOLCHAIN_RELOCATABLE_INSTALL_PREFIX}")
# Let CMake load our custom platform modules.
# CMake-provided platform modules take precedence.
if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/platforms")
endif()
# Handle packages located in QT_ADDITIONAL_PACKAGES_PREFIX_PATH when cross-compiling. Needed for
# Conan.
# We prepend to CMAKE_PREFIX_PATH so that a find_package(Qt6Foo) call works, without having to go
# through the Qt6 umbrella package. The paths must end in lib/cmake to ensure the package is found.
# See REROOT_PATH_ISSUE_MARKER.
# We prepend to CMAKE_FIND_ROOT_PATH, due to the bug mentioned at REROOT_PATH_ISSUE_MARKER.
#
# Note that we don't handle QT_ADDITIONAL_HOST_PACKAGES_PREFIX_PATH here, because we would thwart
# our efforts to not accidentally pick up host packages. For now, we say that
# find_package(Qt6FooTools) is not supported, and people must use find_package(Qt6 COMPONENTS
# FooTools) instead.
set(__qt_toolchain_additional_packages_prefixes "")
if(QT_ADDITIONAL_PACKAGES_PREFIX_PATH)
list(APPEND __qt_toolchain_additional_packages_prefixes
${QT_ADDITIONAL_PACKAGES_PREFIX_PATH})
endif()
if(DEFINED ENV{QT_ADDITIONAL_PACKAGES_PREFIX_PATH}
AND NOT "$ENV{QT_ADDITIONAL_PACKAGES_PREFIX_PATH}" STREQUAL "")
set(__qt_env_additional_packages_prefixes $ENV{QT_ADDITIONAL_PACKAGES_PREFIX_PATH})
if(NOT CMAKE_HOST_WIN32)
string(REPLACE ":" ";" __qt_env_additional_packages_prefixes
"${__qt_env_additional_packages_prefixes}")
endif()
list(APPEND __qt_toolchain_additional_packages_prefixes
${__qt_env_additional_packages_prefixes})
unset(__qt_env_additional_packages_prefixes)
endif()
if(__qt_toolchain_additional_packages_prefixes)
set(__qt_toolchain_additional_packages_root_paths "")
set(__qt_toolchain_additional_packages_prefix_paths "")
foreach(__qt_additional_path IN LISTS __qt_toolchain_additional_packages_prefixes)
file(TO_CMAKE_PATH "${__qt_additional_path}" __qt_additional_path)
get_filename_component(__qt_additional_path "${__qt_additional_path}" ABSOLUTE)
set(__qt_additional_path_lib_cmake "${__qt_additional_path}")
if(NOT __qt_additional_path_lib_cmake MATCHES "/lib/cmake$")
string(APPEND __qt_additional_path_lib_cmake "/lib/cmake")
endif()
list(APPEND __qt_toolchain_additional_packages_root_paths
"${__qt_additional_path}")
list(APPEND __qt_toolchain_additional_packages_prefix_paths
"${__qt_additional_path_lib_cmake}")
endforeach()
list(PREPEND CMAKE_PREFIX_PATH ${__qt_toolchain_additional_packages_prefix_paths})
list(PREPEND CMAKE_FIND_ROOT_PATH ${__qt_toolchain_additional_packages_root_paths})
unset(__qt_additional_path)
unset(__qt_additional_path_lib_cmake)
unset(__qt_toolchain_additional_packages_root_paths)
unset(__qt_toolchain_additional_packages_prefix_paths)
endif()
unset(__qt_toolchain_additional_packages_prefixes)
# Allow customization of the toolchain file by placing an additional file next to it.
set(__qt_toolchain_extra_file "${CMAKE_CURRENT_LIST_DIR}/qt.toolchain.extra.cmake")
if(EXISTS "${__qt_toolchain_extra_file}")
include("${__qt_toolchain_extra_file}")
endif()
# Allow customization of the toolchain file by passing a path to an additional CMake file to be
# included.
if(QT_TOOLCHAIN_INCLUDE_FILE)
get_filename_component(__qt_toolchain_include_file_real_path
"${QT_TOOLCHAIN_INCLUDE_FILE}" REALPATH)
if(EXISTS "${__qt_toolchain_include_file_real_path}")
include("${__qt_toolchain_include_file_real_path}")
else()
message(WARNING "The passed extra toolchain file to be included does not exist: "
"${__qt_toolchain_include_file_real_path}")
endif()
endif()
# Store initial build type (if any is specified) to be read by QtBuildInternals.cmake when building
# a Qt repo, standalone tests or a single test.
if(DEFINED CACHE{CMAKE_BUILD_TYPE})
set(__qt_toolchain_cmake_build_type_before_project_call "${CMAKE_BUILD_TYPE}")
endif()
# Compile tests only see a restricted set of variables.
# All cache variables, this toolchain file uses, must be made available to project-based
# try_compile tests because this toolchain file will be included there too.
if(NOT "$ENV{_QT_TOOLCHAIN_VARS_INITIALIZED}")
set(ENV{_QT_TOOLCHAIN_VARS_INITIALIZED} ON)
foreach(var ${__qt_toolchain_used_variables})
set(ENV{_QT_TOOLCHAIN_${var}} "${${var}}")
endforeach()
endif()