From: Russ Cox <rsc@golang.org>
Date: Mon, 7 Nov 2011 18:15:06 +0000 (-0500)
Subject: runtime/cgo: fix data declaration to be extern
X-Git-Tag: weekly.2011-11-08~14
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1c42db883522997230819f512a92622434838842;p=gostls13.git

runtime/cgo: fix data declaration to be extern

Otherwise some OS X toolchains complain about the redeclaration
of libcgo_thread_start by multiple object files.  The real definition
is in util.c.

Fixes #2167.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5364045
---

diff --git a/src/pkg/runtime/cgo/libcgo.h b/src/pkg/runtime/cgo/libcgo.h
index 91032959c7..c31d19d76d 100644
--- a/src/pkg/runtime/cgo/libcgo.h
+++ b/src/pkg/runtime/cgo/libcgo.h
@@ -42,7 +42,7 @@ struct ThreadStart
  * Makes a local copy of the ThreadStart and
  * calls libcgo_sys_thread_start(ts).
  */
-void (*libcgo_thread_start)(ThreadStart *ts);
+extern void (*libcgo_thread_start)(ThreadStart *ts);
 
 /*
  * Creates the new operating system thread (OS, arch dependent).