Execute a required build process
vcpkg_execute_build_process( COMMAND <cmd> [<args>...] [NO_PARALLEL_COMMAND <cmd> [<args>...]] WORKING_DIRECTORY </path/to/dir> LOGNAME <log_name>) )
The command to be executed, along with its arguments.
Optional parameter which specifies a non-parallel command to attempt if a failure potentially due to parallelism is detected.
The directory to execute the command in.
The prefix to use for the log files.
This should be a unique name for different triplets so that the logs don't conflict when building multiple at once.