cmake externalproject_add_step(BYPRODUCTS) examples

antlr/antlr4 runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake :132 

ExternalProject_Add_Step(
    antlr4_runtime
    build_static
    COMMAND ${ANTLR4_BUILD_COMMAND} antlr4_static
    # Depend on target instead of step (a custom command)
    # to avoid running dependent steps concurrently
    DEPENDS antlr4_runtime
    BYPRODUCTS ${ANTLR4_STATIC_LIBRARIES}
    EXCLUDE_FROM_MAIN 1
    WORKING_DIRECTORY ${ANTLR4_BUILD_DIR})

antlr/antlr4 runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake :153 

ExternalProject_Add_Step(
    antlr4_runtime
    build_shared
    COMMAND ${ANTLR4_BUILD_COMMAND} antlr4_shared
    # Depend on target instead of step (a custom command)
    # to avoid running dependent steps concurrently
    DEPENDS antlr4_runtime
    BYPRODUCTS ${ANTLR4_SHARED_LIBRARIES} ${ANTLR4_RUNTIME_LIBRARIES}
    EXCLUDE_FROM_MAIN 1
    WORKING_DIRECTORY ${ANTLR4_BUILD_DIR})

ThePhD/sol2 cmake/Packages/FindLuaBuild/LuaJIT.cmake :458 

ExternalProject_Add_Step(LUA_JIT move
	ALWAYS TRUE
	${LUA_JIT_POSTBUILD_COMMANDS}
	WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}" 
	COMMENT ${LUA_JIT_POSTBUILD_COMMENTS}
	DEPENDEES build
	DEPENDS ${LUA_JIT_BYPRODUCTS}
	BYPRODUCTS ${LUA_JIT_INSTALL_BYPRODUCTS})