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Tom Anderson authored
Since libc++{abi} are included using -isystem and we compile with -MMD (not -MD), headers from these libraries will not be listed as dependencies. It's possible for libc++{abi} to be updated and for ninja to belive no rebuild is necessary. This CL adds defines for libc++{abi} to force a rebuild when the headers are updated. This CL also requires: https://chromium-review.googlesource.com/c/chromium/buildtools/+/1002869 R=thakis Change-Id: I4c48aa18643cd5fee1be23b6379569123e6fef51 Reviewed-on: https://chromium-review.googlesource.com/1002868 Commit-Queue: Thomas Anderson <thomasanderson@chromium.org> Reviewed-by:Nico Weber <thakis@chromium.org> Cr-Commit-Position: refs/heads/master@{#550092}
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