CMakeLists.txtでDebugとReleaseに違う設定を与える

set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")

set( DEBUG_LIB_PATH C:/libraries/wxWidgets/debug/lib/vc_x64_dll)
find_library( DEBUG_Lib  NAMES wxbase32ud.lib PATHS ${DEBUG_LIB_PATH})

set( RELEASE_LIB_PATH C:/libraries/wxWidgets/release/lib/vc_x64_dll)
find_library( RELEASE_Lib  NAMES wxbase32u.lib PATHS ${RELEASE_LIB_PATH})


target_link_libraries(${MY_PROJECT_NAME} PRIVATE 
  $<$<CONFIG:Debug>:${DEBUG_Lib}>
  $<$<CONFIG:Release>:${RELEASE_Lib}>
)

set( RELEASE_def -D__RELEASE__)
set( DEBUG_def -D__DEBUG__)

target_compile_definitions(
  ${MY_PROJECT_NAME} PRIVATE 
  $<$<CONFIG:Release>:${RELEASE_def}>
  $<$<CONFIG:Debug>:${DEBUG_def}>
)

if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE Release)
endif()