const runtime/internal/sys.GoosDarwin

2 uses

	runtime/internal/sys (current package)
		zgoos_darwin.go#L12: const GoosDarwin = 1

	runtime
		mgcscavenge.go#L93: 	scavengeCostRatio = 0.7 * (sys.GoosDarwin + sys.GoosIos)

The pages are generated with Golds v0.2.8-preview. (GOOS=darwin GOARCH=arm64)