outAll := run("", CheckExit, "uname", "-a")
		switch {
		case strings.Contains(outAll, "RELEASE_ARM64"):
			// MacOS prints
			// Darwin p1.local 21.1.0 Darwin Kernel Version 21.1.0: Wed Oct 13 17:33:01 PDT 2021; root:xnu-8019.41.5~1/RELEASE_ARM64_T6000 x86_64
			// on ARM64 laptops when there is an x86 parent in the
			// process tree. Look for the RELEASE_ARM64 to avoid being
			// confused into building an x86 toolchain.
			gohostarch = "arm64"