Create multiple versions of the build depending on config files or command line parameters.
We could do something more advanced by:
- hashing all input arguments like
xand name the output directory after them - cat the input arguments to a file in that directory to enable identifying the directories
Can also be used for out-of-tree builds: https://stackoverflow.com/questions/3720142/how-to-force-scons-output-exe-obj-lib-dll-to-specific-build-directory