exec_program

Run an executable program during the processing of the CMakeList.txt file.

exec_program(Executable [directory in which to run]
             [ARGS <arguments to executable>]
             [OUTPUT_VARIABLE <var>]
             [RETURN_VALUE <var>])

The executable is run in the optionally specified directory. The executable can include arguments if it is double quoted, but it is better to use the optional ARGS argument to specify arguments to the program. This is because cmake will then be able to escape spaces in the executable path. An optional argument OUTPUT_VARIABLE specifies a variable in which to store the output. To capture the return value of the execution, provide a RETURN_VALUE. If OUTPUT_VARIABLE is specified, then no output will go to the stdout/stderr of the console running cmake.