tree ca69650e795b196e46259f4fe1e652ee1e3c7baf
parent 7c8e511229f0fc06f6250367d51156bb6f578258
author Takuto Ikuta <tikuta@google.com> 1650875780 +0900
committer Commit Bot <commit-bot@chromium.org> 1650878247 +0000

enable -Wundef and make warning as error

This is to prevent typo like
https://gn-review.googlesource.com/c/gn/+/13720/1..3/src/util/aligned_alloc.h#b61
with
https://clang.llvm.org/docs/DiagnosticsReference.html#wundef

Change-Id: I79092766de2a98119da06f33f3caef181c3baa11
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/13781
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@google.com>