--- /dev/null
+// $G $D/$F.go || echo BUG: bug239
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test case for issue 475. This file should compile.
+
+package main
+
+import . "unsafe"
+
+func main() {
+ var x int
+ println(Sizeof(x))
+}
+
+/*
+bug239.go:11: imported and not used: unsafe
+bug239.go:15: undefined: Sizeof
+*/
--- /dev/null
+// errchk $G -e $D/$F.go
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import . "unsafe"
+
+func main() {
+ var x int
+ println(unsafe.Sizeof(x)) // ERROR "undefined"
+}
+
+/*
+After a '.' import, "unsafe" shouldn't be defined as
+an identifier. 6g complains correctly for imports other
+than "unsafe".
+*/
=========== bugs/bug238.go
BUG: errchk: command succeeded unexpectedly
+
+=========== bugs/bug239.go
+bugs/bug239.go:11: imported and not used: unsafe
+bugs/bug239.go:15: undefined: Sizeof
+BUG: bug239
+
+=========== bugs/bug240.go
+BUG: errchk: command succeeded unexpectedly