No longer builds after scons -c about cboe HOT 2 CLOSED

I'm able to reproduce this.

Here's what I dug up about .sconsign.dblite:

The .sconsign.dblite file is a temporary database used by SCons to keep file signatures to speed up future builds. If you delete it, SCons will recreate it (and your next build might take slightly longer because of that). It should not be put under version control.

(from https://stackoverflow.com/a/12867804)

So, SConstruct is marking that file for deletion, and it's getting recreated after scons -c is called.

Weirdly, scons -c still creates this bug, even after I tried changing SConstruct to not mark the dblite file for deletion.

from cboe.

The conversation here indicates that you're not supposed to delete .sconsign.dblite from your SConstruct file, but scons -c breaks the next build even if we don't do that, so it seems like we do need to delete it. I tried the weird atexit workaround shown in that issue, and then it worked.

from cboe.