qt5base-lts/CMakeLists.txt
Mårten Nordheim 2cf0ba1fba Use pre-compiled headers when building Qt with cmake
Some modules define their own manually-maintained lists, and we can rely
on the headers generated by each module to include in the pch as well
e.g. QtCore/QtCore.

There's also e.g. QtWidgetDepends for QtWidgets, but this only
works for modules, not for tools, examples or other applications.
For now we'll use the Qt<Module>/Qt<Module> headers for the
modules we depend on.

Building with PCH can be disabled with -DBUILD_WITH_PCH=NO, and it only
works for versions of CMake newer than 3.15.20190829.

Change-Id: Iae52bd69acfdfd58f4cd20d3cfa3c7f42775f732
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-09-11 08:25:54 +00:00

78 lines
2.0 KiB
CMake

cmake_minimum_required(VERSION 3.15.0)
# Run auto detection routines
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtAutoDetect.cmake)
project(QtBase
VERSION 6.0.0
DESCRIPTION "Qt Base Libraries"
HOMEPAGE_URL "https://qt.io/"
LANGUAGES CXX C ASM
)
## Add some paths to check for cmake modules:
list(PREPEND CMAKE_MODULE_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/extra-cmake-modules/find-modules"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/kwin"
)
## Find the build internals package.
list(PREPEND CMAKE_PREFIX_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
)
find_package(QtBuildInternals CMAKE_FIND_ROOT_PATH_BOTH)
qt_build_repo_begin(SKIP_CMAKE_MODULE_PATH_ADDITION)
## QtBase specific configure tests:
include(QtBaseConfigureTests)
## Build System tests:
include(QtBaseCMakeTesting)
## Targets for global features, etc.:
include(QtBaseGlobalTargets)
## Should this Qt be static or dynamically linked?
option(BUILD_SHARED_LIBS "Build Qt statically or dynamically" ON)
set(QT_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
## Should this Qt be built with Werror?
option(WARNINGS_ARE_ERRORS "Build Qt with warnings as errors" ${FEATURE_developer_build})
## Should Qt be built using PCH?
option(BUILD_WITH_PCH "Build Qt using precompiled headers?" ON)
## Decide whether tools will be built.
qt_check_if_tools_will_be_built()
## Visit all the directories:
add_subdirectory(src)
if (BUILD_TESTING)
add_subdirectory(tests)
endif()
if (QT_WILL_BUILD_TOOLS)
add_subdirectory(qmake)
endif()
# Need to build qmake and other Core tools before exporting them.
qt_export_tools(Core)
# As long as we use the mkspecs (for qplatformdefs.h), we need to always
# install it, especially when cross-compiling.
set(mkspecs_install_dir "${INSTALL_DATADIR}")
qt_path_join(mkspecs_install_dir ${QT_INSTALL_DIR} ${mkspecs_install_dir})
qt_copy_or_install(DIRECTORY "${PROJECT_SOURCE_DIR}/mkspecs"
DESTINATION ${mkspecs_install_dir})
qt_build_repo_end()
if(BUILD_EXAMPLES)
add_subdirectory(examples)
endif()