[PATCH] D42326: [COFF] add option to avoid overwriting unchanged import libraries

[Peter Collingbourne via Phabricator via llvm-commits]

pcc added a comment.

> Enabling the new functionality by default. I did not consider this safe to do, because it breaks the assumptions many people and build systems make about how things work

Doesn't link.exe already do this though?


https://reviews.llvm.org/D42326