[PATCH] D41316: [libcxx] Allow random_device to be built optionally

[Jonathan Roelofs via Phabricator via cfe-commits]

jroelofs added a comment.

I'd much rather provide no implementation than one that lies. Broken builds are much safer than problems at runtime.


Repository:
  rCXX libc++

https://reviews.llvm.org/D41316