commit f88fc7903cb56ba9858a53d0079bc8c5aa41a62c
author Peter Collingbourne <pcc@chromium.org> Mon Feb 12 22:11:45 2018
committer Commit Bot <commit-bot@chromium.org> Mon Feb 12 22:11:45 2018
tree d83328182efa46f98a0a7a84686cb6af5cd2bca7
parent eb881a742835c16302c862c22bc5d1e4e5ef9620

build: Don't define _HAS_EXCEPTIONS to 0 with libc++.

libc++ uses the __has_feature macro to control whether to use exceptions,
so defining this macro is unnecessary. Defining _HAS_EXCEPTIONS to 0 also
breaks libc++ because it depends on MSVC headers that only provide certain
declarations if _HAS_EXCEPTIONS is 1. Those MSVC headers do not use
exceptions, despite being conditional on _HAS_EXCEPTIONS.

Bug: 801780
Change-Id: Icc90ffeea55fe7298a0780ea99a4c33a493ac533
Reviewed-on: https://chromium-review.googlesource.com/885503
Commit-Queue: Peter Collingbourne <pcc@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#536209}