1testenv: look for "go" executable in path. 2 3--- src/go/build/deps_test.go 4+++ src/go/build/deps_test.go 5@@ -182,17 +182,17 @@ var pkgDeps = map[string][]string{ 6 "runtime/debug": {"L2", "fmt", "io/ioutil", "os", "time"}, 7 "runtime/pprof": {"L2", "compress/gzip", "context", "encoding/binary", "fmt", "io/ioutil", "os", "text/tabwriter", "time"}, 8 "runtime/trace": {"L0"}, 9 "text/tabwriter": {"L2"}, 10 11 "testing": {"L2", "flag", "fmt", "internal/race", "os", "runtime/debug", "runtime/pprof", "runtime/trace", "time"}, 12 "testing/iotest": {"L2", "log"}, 13 "testing/quick": {"L2", "flag", "fmt", "reflect", "time"}, 14- "internal/testenv": {"L2", "OS", "flag", "testing", "syscall"}, 15+ "internal/testenv": {"L2", "OS", "os/exec", "flag", "testing", "syscall"}, 16 17 // L4 is defined as L3+fmt+log+time, because in general once 18 // you're using L3 packages, use of fmt, log, or time is not a big deal. 19 "L4": { 20 "L3", 21 "fmt", 22 "log", 23 "time", 24--- src/internal/testenv/testenv.go 25+++ src/internal/testenv/testenv.go 26@@ -43,16 +43,19 @@ func HasGoBuild() bool { 27 switch runtime.GOOS { 28 case "android", "nacl": 29 return false 30 case "darwin": 31 if strings.HasPrefix(runtime.GOARCH, "arm") { 32 return false 33 } 34 } 35+ if _, err := exec.LookPath("go"); err != nil { 36+ return false 37+ } 38 return true 39 } 40 41 // MustHaveGoBuild checks that the current system can build programs with ``go build'' 42 // and then run them with os.StartProcess or exec.Command. 43 // If not, MustHaveGoBuild calls t.Skip with an explanation. 44 func MustHaveGoBuild(t testing.TB) { 45 if os.Getenv("GO_GCFLAGS") != "" { 46