This fixes a gn failure (svn info in //third_party/llvm) when building
with a self-built clang and llvm_force_head_revision=true.
Change-Id: If56bea54b58482cb3a4f864ee2bf4a8b66f0beef
Reviewed-on: https://chromium-review.googlesource.com/903081
Commit-Queue: Peter Collingbourne <pcc@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#534611}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 2a4dbb093a151bbaa648d929320da30c5e40fa77
The official Chrome on iOS build are build using the version of clang
shipped with Xcode (a.k.a. the system version of clang). This CL adds
a flag to allow building with this version of clang instead of the
hermetic shipped with Chromium source (i.e. ToT clang).
When building with system version of clang, some compiler warning have
to be flipped as they are unsupported and the plugins are disabled (as
they only work for a single version of clang).
Refactor the definition of the toolchain for iOS and correctly set the
default_toolchain when targetting iOS based on target_cpu (used to be
incorrectly set to "//build/toolchain/mac:ios_clang_arm").
BUG=620376
Review-Url: https://codereview.chromium.org/2079283002
Cr-Original-Commit-Position: refs/heads/master@{#401119}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: fe65591ff09b9180898e303ec4831d4e7dfb10e9
Peter Collingbourne
sigbjornf
sdefresne
ncbray
brettw@chromium.org