tree 0ae9cb747ac5b4f413a0c276c9ba5639914d7d95
parent cf67ec09e48e8043f2d7cadeedc5fced9af1b410
author Adam Langley <agl@google.com> 1566853911 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1566855302 +0000

Limit __attribute__ ((fallthrough)) to Clang >= 5.

With Clang 3.5, this fails and breaks gRPC's build:

third_party/boringssl/crypto/bio/fd.c:196:7: error: declaration does not declare anything [-Werror,-Wmissing-declarations]
      OPENSSL_FALLTHROUGH;
      ^~~~~~~~~~~~~~~~~~~
third_party/boringssl/crypto/bio/../internal.h:192:29: note: expanded from macro 'OPENSSL_FALLTHROUGH'

Clang 5, empirically, is happy, so limit this to Clang >= 5.

Change-Id: I82430b415955ec7d664abe3ffe024e6bb28346c2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/37246
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>