[PATCH] D25076: [cmake] Make LIT_COMMAND configurable and improve fallback support

[Chris Bieneman via llvm-commits]

beanz added a comment.

In the past when I have had these issues I've written temporary workaround code that has inspected the variable for the bad value, then used `unset` to remove it from the cache and follow the normal flow from there.

Following that model you end up with a block of code that you can put a TODO comment above that says to remove it, and when it should be safe to remove.


https://reviews.llvm.org/D25076