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 +++++
 include/stackinfo.h | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 include/stackinfo.h

(limited to 'include')

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
diff --git a/include/stackinfo.h b/include/stackinfo.h
new file mode 100644
index 0000000000..b9b2278487
--- /dev/null
+++ b/include/stackinfo.h
@@ -0,0 +1,42 @@
+/* Details about the machine's stack: wrapper header.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _INCLUDE_STACKINFO_H
+#define _INCLUDE_STACKINFO_H	1
+
+/* A sysdeps/.../stackinfo.h file defines details for the CPU.
+   It is obliged to define either _STACK_GROWS_DOWN or _STACK_GROWS_UP.  */
+#include_next <stackinfo.h>
+
+#if defined _STACK_GROWS_DOWN && _STACK_GROWS_DOWN
+# ifdef _STACK_GROWS_UP
+#  error "stackinfo.h should not define both!"
+# else
+#  define _STACK_GROWS_UP	0
+# endif
+#elif defined _STACK_GROWS_UP && _STACK_GROWS_UP
+# ifdef _STACK_GROWS_DOWN
+#  error "stackinfo.h should not define both!"
+# else
+#  define _STACK_GROWS_DOWN	0
+# endif
+#else
+# error "stackinfo.h must define _STACK_GROWS_UP or _STACK_GROWS_DOWN!"
+#endif
+
+#endif  /* include/stackinfo.h */
-- 
cgit 1.4.1