_CPPCHECK

From Get docs
Cmake/docs/3.21/prop tgt/lang cppcheck


_CPPCHECK

New in version 3.10.


This property is supported only when <LANG> is C or CXX.

Specify a semicolon-separated list containing a command line for the cppcheck static analysis tool. The Makefile Generators and the Ninja generator will run cppcheck along with the compiler and report any problems. If the command-line specifies the exit code options to cppcheck then the build will fail if the tool returns non-zero.

This property is initialized by the value of the CMAKE__CPPCHECK variable if it is set when a target is created.

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https://cmake.org/cmake/help/v3.21/prop_tgt/LANG_CPPCHECK.html