# CMake 3.9 or later provides a global property to whether we are multi-config

# or single-config generator. Before 3.9, the defintion of

# CMAKE_CONFIGURATION_TYPES variable indicated multi-config, but developers

# might modify.

if(NOT CMAKE_VERSION VERSION_LESS 3.9)

get_property(isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)

elseif(CMAKE_CONFIGURATION_TYPES)

# CMAKE_CONFIGURATION_TYPES is set by project() call

set(isMultiConfig True)

else()

set(isMultiConfig False)

endif()

if(isMultiConfig)

set(CMAKE_CONFIGURATION_TYPES "Debug;MinSizeRel;Release;RelWithDebInfo"

CACHE STRING "Configurations for Multi-Config CMake Generator" FORCE)

else()

set(default_build_type "Release")

if(EXISTS "${Forge_SOURCE_DIR}/.git")

set(default_build_type "Debug")

endif()

if(NOT CMAKE_BUILD_TYPE)

set(CMAKE_BUILD_TYPE ${default_build_type} CACHE STRING "Build Type" FORCE)

endif()

set_property(CACHE CMAKE_BUILD_TYPE

PROPERTY

STRINGS "Debug" "MinSizeRel" "Release" "RelWithDebInfo")

endif()