project(add_definitions_command_with_target_prop) add_definitions(-DCMAKE_IS_FUN -DCMAKE_IS=Fun) add_executable(add_definitions_command_with_target_prop_executable ../compiletest.cpp) set_target_properties(add_definitions_command_with_target_prop_executable PROPERTIES COMPILE_DEFINITIONS CMAKE_IS_="Fun") set_property(TARGET add_definitions_command_with_target_prop_executable APPEND PROPERTY COMPILE_DEFINITIONS CMAKE_IS_REALLY="Very Fun") add_definitions(-DCMAKE_IS_FUN) set_property(TARGET add_definitions_command_with_target_prop_executable APPEND PROPERTY COMPILE_DEFINITIONS CMAKE_IS=Fun CMAKE_IS_="Fun") add_definitions(-DBUILD_IS_DEBUG=$) set_property(TARGET add_definitions_command_with_target_prop_executable APPEND PROPERTY COMPILE_DEFINITIONS BUILD_IS_NOT_DEBUG=$>)