# https://blog.kitware.com/cmake-and-the-default-build-type/

# 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 the possible values of build type for cmake-gui
    set_property (CACHE CMAKE_BUILD_TYPE PROPERTY 
        STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo"
    )
endif()