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This variable is only used when :variable:`CMAKE_CROSSCOMPILING` is on. It
should point to a command on the host system that can run executable built
for the target system.
If this variable contains a :ref:`semicolon-separated list <CMake Language
Lists>`, then the first value is the command and remaining values are its
The command will be used to run :command:`try_run` generated executables,
which avoids manual population of the ``TryRunResults.cmake`` file.
It is also used as the default value for the
:prop_tgt:`CROSSCOMPILING_EMULATOR` target property of executables.