package main

import (
    "fmt"
    "code.google.com/p/go.text/unicode/norm"
)

func main() {
    fmt.Println(norm.IsNormalString("ŋ̊"))
}

go build -o ipa ipa.go

# command-line-arguments
./ipa.go:9: undefined: norm.IsNormalString
make: *** [ipa] Error 2