| CXX_EXTENSIONS | |
| -------------- | |
| Boolean specifying whether compiler specific extensions are requested. | |
| This property specifies whether compiler specific extensions should be | |
| used. For some compilers, this results in adding a flag such | |
| as ``-std=gnu++11`` instead of ``-std=c++11`` to the compile line. This | |
| property is ``ON`` by default. The basic C++ standard level is | |
| controlled by the :prop_tgt:`CXX_STANDARD` target property. | |
| See the :manual:`cmake-compile-features(7)` manual for information on | |
| compile features and a list of supported compilers. | |
| This property is initialized by the value of | |
| the :variable:`CMAKE_CXX_EXTENSIONS` variable if it is set when a target | |
| is created. |