Clarify disabled warning for Metal in BUILD.gn
BUG=
Change-Id: I7f0715bbaaae433d2f1a93c5a2496f28d466e150
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11220
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/BUILD.gn b/BUILD.gn
index 8394623..d02dfa2 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -46,7 +46,11 @@
config("libdawn_native_internal") {
configs = [ "${dawn_root}/src/common:dawn_internal" ]
- # Suppress warnings that Metal isn't in the deployment target of Chrome
+ # Suppress warnings that Metal isn't in the deployment target of Chrome:
+ # initialization of the Metal backend is behind a IsMetalSupported check so
+ # Dawn won't call Metal functions on macOS 10.10.
+ # TODO(cwallez@chromium.org): Consider using API_AVAILABLE annotations on all
+ # metal code in dawn once crbug.com/1004024 is sorted out.
if (is_mac) {
cflags_objcc = [ "-Wno-unguarded-availability" ]
}
