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authorLi Jinjing <jinjingx.li@intel.com>2014-10-26 22:28:15 +0800
committerLi Jinjing <jinjingx.li@intel.com>2014-10-26 22:28:15 +0800
commit931b01b091932a1f796c23379ea32abb68bd5895 (patch)
tree3aa9e1125da84f7e3bd764bbff577c42a766508b /tests/unsetenv.c
parent7be93f2d05131d061bd4790ae33c8d50f50010d7 (diff)
downloadm4-931b01b091932a1f796c23379ea32abb68bd5895.tar.gz
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Imported Upstream version 1.4.17upstream/1.4.17sandbox/jinjingx/upstream
Diffstat (limited to 'tests/unsetenv.c')
-rw-r--r--tests/unsetenv.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/tests/unsetenv.c b/tests/unsetenv.c
index 215bba0..c58c82f 100644
--- a/tests/unsetenv.c
+++ b/tests/unsetenv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1995-2002, 2005-2011 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1995-2002, 2005-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software: you can redistribute it and/or modify
@@ -14,12 +14,12 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include <config.h>
-
/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
optimizes away the name == NULL test below. */
#define _GL_ARG_NONNULL(params)
+#include <config.h>
+
/* Specification. */
#include <stdlib.h>
@@ -36,7 +36,7 @@
#endif
#if _LIBC
-/* This lock protects against simultaneous modifications of `environ'. */
+/* This lock protects against simultaneous modifications of 'environ'. */
# include <bits/libc-lock.h>
__libc_lock_define_initialized (static, envlock)
# define LOCK __libc_lock_lock (envlock)
@@ -97,6 +97,13 @@ weak_alias (__unsetenv, unsetenv)
#else /* HAVE_UNSETENV */
# undef unsetenv
+# if !HAVE_DECL_UNSETENV
+# if VOID_UNSETENV
+extern void unsetenv (const char *);
+# else
+extern int unsetenv (const char *);
+# endif
+# endif
/* Call the underlying unsetenv, in case there is hidden bookkeeping
that needs updating beyond just modifying environ. */