package main

/**/
import "C" 

func main() {
    var a = C.enum_test(1)
} 

# test
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x40ec96]

goroutine 1 [running]:
main.(*Package).rewriteRef(0xc20808e2a0, 0xc2080a0000)
        /opt/go.1.5/src/cmd/cgo/gcc.go:610 +0x1466
main.(*Package).Translate(0xc20808e2a0, 0xc2080a0000)
        /opt/go.1.5/src/cmd/cgo/gcc.go:170 +0x197
main.main()
        /opt/go.1.5/src/cmd/cgo/main.go:269 +0x1059