From fc0863785a0200de0d0135abf5ce16a803e5b2d6 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 2 Jul 2011 06:49:56 +0000
Subject: [PATCH] add a portable version of sys/sysmacros.h and and let the
 kernel use the host include dir, fixes x86 builds on non-gnu systems

SVN-Revision: 27346
---
 include/kernel-defaults.mk    |  2 ++
 tools/Makefile                |  3 +-
 tools/include/sys/sysmacros.h | 56 +++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 tools/include/sys/sysmacros.h

diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index 1bc829b901..5fd27ae7cd 100644
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -22,6 +22,8 @@ ifneq (,$(KERNEL_CC))
   KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
 endif
 
+export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
+
 # defined in quilt.mk
 Kernel/Patch:=$(Kernel/Patch/Default)
 ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
diff --git a/tools/Makefile b/tools/Makefile
index 80c2d11628..486734bc85 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -80,8 +80,9 @@ $(STAGING_DIR)/.prepared: $(TMP_DIR)/.build
 
 $(STAGING_DIR_HOST)/.prepared: $(TMP_DIR)/.build
 	$(call PrepareStaging,$(STAGING_DIR_HOST))
-	mkdir -p $(BUILD_DIR_HOST)/stamp
+	mkdir -p $(BUILD_DIR_HOST)/stamp $(STAGING_DIR_HOST)/include/sys
 	$(INSTALL_DATA) $(TOPDIR)/tools/include/*.h $(STAGING_DIR_HOST)/include/
+	$(INSTALL_DATA) $(TOPDIR)/tools/include/sys/*.h $(STAGING_DIR_HOST)/include/sys/
 	touch $@
 
 
diff --git a/tools/include/sys/sysmacros.h b/tools/include/sys/sysmacros.h
new file mode 100644
index 0000000000..997d9286b6
--- /dev/null
+++ b/tools/include/sys/sysmacros.h
@@ -0,0 +1,56 @@
+/* Definitions of macros to access `dev_t' values.
+   Copyright (C) 1996, 1997, 1999, 2003, 2004 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef __SYS_SYSMACROS_H
+#define __SYS_SYSMACROS_H	1
+
+static inline unsigned int
+__gnu_dev_major(unsigned long long int __dev)
+{
+  return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
+}
+
+static inline unsigned int
+__gnu_dev_minor(unsigned long long int __dev)
+{
+  return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
+}
+
+static inline unsigned long long int
+__gnu_dev_makedev(unsigned int __major, unsigned int __minor)
+{
+  return ((__minor & 0xff) | ((__major & 0xfff) << 8)
+	  | (((unsigned long long int) (__minor & ~0xff)) << 12)
+	  | (((unsigned long long int) (__major & ~0xfff)) << 32));
+}
+
+/* Access the functions with their traditional names.  */
+#ifndef major
+# define major(dev) __gnu_dev_major (dev)
+#endif
+
+#ifndef minor
+# define minor(dev) __gnu_dev_minor (dev)
+#endif
+
+#ifndef makedev
+# define makedev(maj, min) __gnu_dev_makedev (maj, min)
+#endif
+
+#endif /* sys/sysmacros.h */