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## Set a default build type if none was specified
set(_default_build_type "Release")
if(EXISTS "${CMAKE_SOURCE_DIR}/.git")
set(_default_build_type "Debug")
endif()
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to '${_default_build_type}' as none was specified.")
set(CMAKE_BUILD_TYPE "${_default_build_type}" CACHE STRING "Choose the type of build." FORCE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo") # Set the possible values of build type for cmake-gui
endif()
# Appends a 'debug postfix' to library targets (not executables)
# e.g. lib/libQt5DBus_debug.5.12.0.dylib
if(WIN32)
set(CMAKE_DEBUG_POSTFIX "d")
elseif(APPLE)
set(CMAKE_DEBUG_POSTFIX "_debug")
endif()
## Force C++ standard, do not fall back, do not use compiler extensions
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
## Position independent code:
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# Do not relink dependent libraries when no header has changed:
set(CMAKE_LINK_DEPENDS_NO_SHARED ON)
# Default to hidden visibility for symbols:
set(CMAKE_C_VISIBILITY_PRESET hidden)
set(CMAKE_CXX_VISIBILITY_PRESET hidden)
set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
## Enable testing:
include(CTest)
enable_testing()
## Define some constants to check for certain platforms, etc:
include(QtPlatformSupport)
## add_qt_module and co.:
include(QtBuild)
## Qt Feature support:
include(QtFeature)
## Compiler optimization flags:
include(QtCompilerOptimization)
## Compiler flags:
include(QtCompilerFlags)
## Find host tools (if non native):
set(QT_HOST_PATH "" CACHE PATH "Installed Qt host directory path, used for cross compiling.")
if (CMAKE_CROSSCOMPILING AND NOT IS_DIRECTORY ${QT_HOST_PATH})
message(FATAL_ERROR "You need to set QT_HOST_PATH to cross compile Qt.")
endif()
## Enable support for sanitizers:
include(${CMAKE_CURRENT_LIST_DIR}/3rdparty/extra-cmake-modules/modules/ECMEnableSanitizers.cmake)
option(QT_USE_CCACHE "Enable the use of ccache")
if(QT_USE_CCACHE)
find_program(CCACHE_PROGRAM ccache)
set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
set(CMAKE_OBJC_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
endif()
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