1CMAKE_<LANG>_EXTENSIONS 2----------------------- 3 4The variations are: 5 6* :variable:`CMAKE_C_EXTENSIONS` 7* :variable:`CMAKE_CXX_EXTENSIONS` 8* :variable:`CMAKE_CUDA_EXTENSIONS` 9* :variable:`CMAKE_HIP_EXTENSIONS` 10* :variable:`CMAKE_OBJC_EXTENSIONS` 11* :variable:`CMAKE_OBJCXX_EXTENSIONS` 12 13Default values for :prop_tgt:`<LANG>_EXTENSIONS` target properties if set when 14a target is created. For the compiler's default setting see 15:variable:`CMAKE_<LANG>_EXTENSIONS_DEFAULT`. 16 17For supported CMake versions see the respective pages. 18 19See the :manual:`cmake-compile-features(7)` manual for information on 20compile features and a list of supported compilers. 21