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CMake snippet to add to CMakeLists.txt to make some target use `int main()` while building to the GUI ("windows") subsystem.
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| # No console window when targetting windows | |
| if(WIN32) | |
| function(handle_gnu_style_compiler) | |
| # 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) | |
| endfunction() | |
| 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) | |
| handle_gnu_style_compiler() | |
| 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) | |
| handle_gnu_style_compiler() | |
| endif() | |
| elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") | |
| handle_msvc_style_compiler() | |
| endif() | |
| endif() |
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