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misc/cgo/test: avoid duplicate definition with gccgo

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Current versions of gccgo issue a duplicate definition error when both
a definition and an empty declaration occur. Use build tags to avoid
that case for the issue9400 subdirectory.

Change-Id: I18517af87bab05e9ca43f2f295459cf34347c317
Reviewed-on: https://go-review.googlesource.com/119896
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Ian Lance Taylor 2018-06-19 16:55:19 -07:00
parent 65d55a13a9
commit 29673a4be6
2 changed files with 4 additions and 0 deletions
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2
misc/cgo/test/issue9400/gccgo.go
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@ -16,6 +16,8 @@ import (
// without writing more assembly code, which we haven't bothered to
// do. So this is not much of a test.
var Baton int32
func RewindAndSetgid() {
atomic.StoreInt32(&Baton, 1)
for atomic.LoadInt32(&Baton) != 0 {

2
misc/cgo/test/issue9400/stubs.go
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@ -2,6 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build gc
package issue9400
var Baton int32