hotfix: Exclude Cast Core API from Mac

gRPC doesn't currently build on Mac in chromium so this change ensures
the Cast Core API files that depend on it don't get pulled in by GN.

Bug: b/172295002
Change-Id: Ib4efc5fc1278be66ce0a12dcc37b9a2bdf95b218
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/2992828
Reviewed-by: Brandon Tolsch <btolsch@chromium.org>
Commit-Queue: Brandon Tolsch <btolsch@chromium.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/BUILD.gn b/BUILD.gn
index e62ae81e..2744cfa8 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -62,7 +62,9 @@ group("gn_all") {
       "third_party/zlib",
     ]
   } else {
-    deps += [ "cast/cast_core/api" ]
+    if (!is_mac) {
+      deps += [ "cast/cast_core/api" ]
+    }
   }
 }