| commit | 5f44f71dad13682702ddf5bba271c0201074d086 | [log] [tgz] |
|---|---|---|
| author | Frank Henigman <fjhenigman@chromium.org> | Fri Dec 14 18:30:30 2018 |
| committer | Commit Bot <commit-bot@chromium.org> | Fri Dec 14 18:30:30 2018 |
| tree | 1e9d29ca6155ee281a6ab369194edf7dbfc261f0 | |
| parent | d99cae80b1497fd8abfd6066f24bb5db3c15322a [diff] |
Tell shaderc where to find SPIRV-Cross. Set a variable in build_overrides that gives the location of shaderc's new SPIRV-Cross dependency. The variable will take a different value for a dawn stand-alone build. BUG=915096 Change-Id: Ied39c0b233de2c3e8ea29b576759c4c4eb8b0a61 Reviewed-on: https://chromium-review.googlesource.com/c/1378009 Reviewed-by: Nico Weber <thakis@chromium.org> Commit-Queue: Frank Henigman <fjhenigman@chromium.org> Cr-Original-Commit-Position: refs/heads/master@{#616754} Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src Cr-Mirrored-Commit: c0fd077dcd55a26ea05eedc16cad0d3693ac33cf
This directory is used to allow different products to customize settings for repos that are DEPS'ed in or shared.
For example: V8 could be built on its own (in a “standalone” configuration), and it could be built as part of Chromium. V8 might define a top-level target, //v8:d8 (a simple executable), that should only be built in the standalone configuration. To figure out whether or not it should be in a standalone configuration, v8 can create a file, build_overrides/v8.gni, that contains a variable, build_standalone_d8 = true. and import it (as import(“//build_overrides/v8.gni”) from its top-level BUILD.gn file.
Chromium, on the other hand, might not need to build d8, and so it would create its own build_overrides/v8.gni file, and in it set build_standalone_d8 = false.
The two files should define the same set of variables, but the values can vary as appropriate to the needs of the two different builds.
The build.gni file provides a way for projects to override defaults for variables used in //build itself (which we want to be shareable between projects).
TODO(crbug.com/588513): Ideally //build_overrides and, in particular, //build_overrides/build.gni should go away completely in favor of some mechanism that can re-use other required files like //.gn, so that we don't have to keep requiring projects to create a bunch of different files to use GN.