if tag == "amd64.v2" {
			t.Skip("compiling for GOAMD64=v2 or higher")
		}
	}
	if os.Getenv("TESTGOAMD64V1") != "" {
		t.Skip("recursive call")
	}

	// Make a binary which will be a modified version of the
	// currently running binary.
	dst, err := os.CreateTemp("", "TestGoAMD64v1")
	if err != nil {
		t.Fatalf("failed to create temp file: %v", err)
	}
	defer os.Remove(dst.Name())