function(target_use_windows_subsystem TARGET_NAME) if(WIN32) function(handle_msvc_style_compiler) target_link_options(${TARGET_NAME} PRIVATE /SUBSYSTEM:windows /ENTRY:mainCRTStartup) endfunction() if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU") # GCC (MinGW) # Supposedly the flag -mwindows would automatically make the executable use GUI subsystem # But, when subsystem is set to GUI, linker will only search WinMain and wWinMain but not the standard main (it seems like) # so creating GUI executable fails and the linker silently reverts to the default, CUI subsystem target_link_options(${TARGET_NAME} PRIVATE -Wl,-subsystem,windows) target_link_options(${TARGET_NAME} PRIVATE -Wl,-entry,mainCRTStartup) elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang") if(CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC") # MSVC-style argument clang (clang-cl.exe) handle_msvc_style_compiler() elseif(CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "GNU") # GNU-style argument clang (clang.exe and clang++.exe) target_link_options(${TARGET_NAME} PRIVATE -Wl,-subsystem:windows) target_link_options(${TARGET_NAME} PRIVATE -Wl,-entry:mainCRTStartup) endif() elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") handle_msvc_style_compiler() # Use updated __cplusplus macro # https://docs.microsoft.com/en-us/cpp/build/reference/zc-cplusplus target_compile_options(${TARGET_NAME} PUBLIC /Zc:__cplusplus) endif() endif() endfunction()