install.py should pick up changes to legion without forcing --clean

[rohany]

Right now, making a change to legion and using install.py requires using --clean to rebuild, rather than it picking up the change. It would be great if single-file changes to legion did not require a full rebuild.

[manopapad]

I thought we were doing this correctly at this point, after #455 and #442 were merged. And this has been working for me AFAICT. Can you post some output where a change in legion fails to trigger recompilation?

[rohany]

What command do you do? I do ./install.py --verbose --editable --legion-src-dir legion --arch pascal --conduit ibv --network gasnet1 --debug-release to rebuild the core.

[rohany]

actually never mind, this is working, i think my paths got messed up.