message: mac newsdk: build glfw with -Wno-objc-multiple-method-names
  It invokes [NSObject center] which is ambiguous as of the 10.15 SDK.
  For now, ignore the ambiguity; a proper upstream fix to glfw will
  happen later.
diff: @@ -369,6 +369,7 @@ if (is_win || (is_linux && !is_chromeos) || is_mac) {
  cflags_objc = [
  "-Wno-sign-compare",
  "-Wno-unguarded-availability",
  + "-Wno-objc-multiple-method-names",
  ]
  }
  }
  