share/cmake-3.22/Help/variable/CMAKE_COMPILER_IS_GNUCXX.rst


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CMAKE_COMPILER_IS_GNUCXX
------------------------

.. versionadded:: 3.7

True if the C++ (``CXX``) compiler is GNU.
Use :variable:`CMAKE_CXX_COMPILER_ID <CMAKE_<LANG>_COMPILER_ID>` instead.