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

[Jonathan Roelofs via Phabricator via cfe-commits]

jroelofs added a subscriber: efriedma.
jroelofs added a comment.

>   the targets where you would want to use this can't run the libcxx

testsuite anyway (because they don't have an operating system to run the
test programs under).

I used to run libcxx tests for an arm baremetal toolchain I was building
via semihosted QEMU. It was awkward and slow (especially for some of the
std::*_distribution tests), but it worked.

Jon


Repository:
  rCXX libc++

https://reviews.llvm.org/D41316