From c00787b642cb499896ae03a918f13546d24b6552 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 5 Jun 2011 14:31:51 +0200
Subject: [PATCH] setenv: Avoid gcc warning.

* lib/setenv.c (setenv): Provide declaration if system lacks it.
---
 ChangeLog    | 5 +++++
 lib/setenv.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 599c20d464..5fdf8a49f5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-06-05  Bruno Haible  <bruno@clisp.org>
+
+	setenv: Avoid gcc warning.
+	* lib/setenv.c (setenv): Provide declaration if system lacks it.
+
 2011-06-05  Bruno Haible  <bruno@clisp.org>
 
 	sys_select: Ensure memset is declared also on AIX 7.
diff --git a/lib/setenv.c b/lib/setenv.c
index 173d95f28b..0a5f67dd04 100644
--- a/lib/setenv.c
+++ b/lib/setenv.c
@@ -350,6 +350,9 @@ weak_alias (__clearenv, clearenv)
 #if HAVE_SETENV
 
 # undef setenv
+# if !HAVE_DECL_SETENV
+extern int setenv (const char *, const char *, int);
+# endif
 # define STREQ(a, b) (strcmp (a, b) == 0)
 
 int
-- 
2.30.2