Hello,

I tried to compile go1.5beta3 on MacOS X 10.6 with preinstalled 1.4.2 version with the following command line:

CGO_ENABLED=0 GOROOT_BOOTSTRAP=/usr/local/go ./all.bash

I don't have gcc/Xcode installed. The test failed with:

ok cmd/nm 3.414s
--- FAIL: TestDisasmExtld (4.82s)
objdump_test.go:70: go build fmthello.go: exit status 2
# command-line-arguments
warning: unable to find runtime/cgo.a
/Users/xigh/Sources/gget/go/pkg/tool/darwin_amd64/link: running gcc failed: exec: "gcc": executable file not found in $PATH

FAIL
FAIL cmd/objdump 8.900s

I fixed this with by changing to:

func cgoDisabled() bool {
return os.Getenv("CGO_ENABLED") == "0"
}

func TestDisasmExtld(t *testing.T) {
if cgoDisabled() {
t.Skipf("skipping: cgo disabled")
}