qt5base-lts/cmake/QtModuleDependencies.cmake.in
Kai Köhne 5bbd700124 Improve support for QT_ADDITIONAL_PACKAGES_PREFIX_PATH
Allow to set QT_ADDITIONAL_PACKAGES_PREFIX_PATH as both an env
variable and CMake cache variable. Also normalize path and list
separators, so that they can be used similar to CMAKE_PREFIX_PATH.

The environment variable is intended to be set by the conan virtualenv
generator, so that e.g.

  find_package(Qt6 COMPONENTS NetworkAuth REQUIRED)

also works if NetworkAuth is not installed into the Qt prefix.

Pick-to: 6.1
Fixes: QTBUG-91142
Change-Id: Ia9f9b9fa2b1b051d33073629139640d0f4c7a843
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Craig Scott <craig.scott@qt.io>
2021-03-03 10:21:28 +01:00

100 lines
3.4 KiB
CMake

# Make sure @INSTALL_CMAKE_NAMESPACE@ is found before anything else.
set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
set(__qt_use_no_default_path_for_qt_packages "NO_DEFAULT_PATH")
if(QT_DISABLE_NO_DEFAULT_PATH_IN_QT_PACKAGES)
set(__qt_use_no_default_path_for_qt_packages "")
endif()
find_dependency(@INSTALL_CMAKE_NAMESPACE@ @PROJECT_VERSION@
PATHS
"${CMAKE_CURRENT_LIST_DIR}/.."
${_qt_additional_packages_prefix_path}
${_qt_additional_packages_prefix_path_env}
${QT_EXAMPLES_CMAKE_PREFIX_PATH}
${__qt_use_no_default_path_for_qt_packages}
)
# note: _third_party_deps example: "ICU\\;FALSE\\;1.0\\;i18n uc data;ZLIB\\;FALSE\\;\\;"
set(_third_party_deps "@third_party_deps@")
foreach(_target_dep ${_third_party_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 is_optional)
list(GET _target_dep 2 version)
list(GET _target_dep 3 components)
set(find_package_args "${pkg}")
if(version)
list(APPEND find_package_args "${version}")
endif()
if(components)
string(REPLACE " " ";" components "${components}")
list(APPEND find_package_args COMPONENTS ${components})
endif()
if(is_optional)
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
list(APPEND find_package_args QUIET)
endif()
find_package(${find_package_args})
else()
find_dependency(${find_package_args})
endif()
endforeach()
# Find Qt tool package.
set(_tool_deps "@main_module_tool_deps@")
if(NOT "${QT_HOST_PATH}" STREQUAL "")
# Make sure that the tools find the host tools first
set(BACKUP_@target@_CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH})
set(BACKUP_@target@_CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH})
list(PREPEND CMAKE_PREFIX_PATH "${QT_HOST_PATH_CMAKE_DIR}")
list(PREPEND CMAKE_FIND_ROOT_PATH "${QT_HOST_PATH}")
endif()
foreach(_target_dep ${_tool_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 version)
unset(find_package_args)
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
list(APPEND find_package_args QUIET)
endif()
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
list(APPEND find_package_args REQUIRED)
endif()
find_package(${pkg} ${version} ${find_package_args})
if (NOT ${pkg}_FOUND)
if(NOT "${QT_HOST_PATH}" STREQUAL "")
set(CMAKE_PREFIX_PATH ${BACKUP_@target@_CMAKE_PREFIX_PATH})
set(CMAKE_FIND_ROOT_PATH ${BACKUP_@target@_CMAKE_FIND_ROOT_PATH})
endif()
return()
endif()
endforeach()
if(NOT "${QT_HOST_PATH}" STREQUAL "")
set(CMAKE_PREFIX_PATH ${BACKUP_@target@_CMAKE_PREFIX_PATH})
set(CMAKE_FIND_ROOT_PATH ${BACKUP_@target@_CMAKE_FIND_ROOT_PATH})
endif()
# note: target_deps example: "Qt6Core\;5.12.0;Qt6Gui\;5.12.0"
set(_target_deps "@target_deps@")
foreach(_target_dep ${_target_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 version)
if (NOT ${pkg}_FOUND)
find_dependency(${pkg} ${version}
PATHS
"${CMAKE_CURRENT_LIST_DIR}/.."
${_qt_additional_packages_prefix_path}
${_qt_additional_packages_prefix_path_env}
${QT_EXAMPLES_CMAKE_PREFIX_PATH}
${__qt_use_no_default_path_for_qt_packages}
)
endif()
endforeach()
set(_@QT_CMAKE_EXPORT_NAMESPACE@@target@_MODULE_DEPENDENCIES "@qt_module_dependencies@")
set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND TRUE)