From 498a22333b835a598ccaed4656e97a0ec3573665 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@hack.frob.com>
Date: Fri, 14 Mar 2014 10:44:34 -0700
Subject: Compile with -Wundef.

---
 include/errno.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/errno.h')

diff --git a/include/errno.h b/include/errno.h
index f1b93a881b..dbf2a61e0d 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -6,6 +6,11 @@
 
 # ifdef IS_IN_rtld
 #  include <dl-sysdep.h>
+#  ifndef RTLD_PRIVATE_ERRNO
+#   error "dl-sysdep.h must define RTLD_PRIVATE_ERRNO!"
+#  endif
+# else
+#  define RTLD_PRIVATE_ERRNO	0
 # endif
 
 # if RTLD_PRIVATE_ERRNO
-- 
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