tree 2baaf85347ce7380da4884facf8e159e2f258df5
parent a8ffaf1bf2ec64cbbb17863ede06ba506b3db8b8
author Manoj Gupta <manojgupta@google.com> 1566836038 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1566838128 +0000

Add Fallthru support for clang 10.

clang has gained supoprted for __attribute__ ((fallthrough))
in https://reviews.llvm.org/rL369414.
Detect the support in clang and enable it as OPENSSL_FALLTHROUGH.
This is needed to fix ToT clang builds.

Bug: chromium:997709
Test: CQ
Change-Id: Iefa17687f6b5e8c95f359f167e9049d9a69c5302
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/37244
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>