Documentation: support glibc versions without htole macros

glibc 2.9 introduced the htole<16/32/64> macros, add them to
tools/include to support older versions of glibc.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Peter Foley <pefoley2@pefoley.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Documentation/arm/SH-Mobile/Makefile

@@ -4,4 +4,4 @@ hostprogs-y := vrl4
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 
-HOSTCFLAGS_vrl4.o += -I$(objtree)/usr/include
+HOSTCFLAGS_vrl4.o += -I$(objtree)/usr/include -I$(srctree)/tools/include

Documentation/arm/SH-Mobile/vrl4.c

@@ -34,6 +34,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <errno.h>
+#include <tools/endian.h>
 
 struct hdr {
 	uint32_t magic1;

Documentation/mic/mpssd/Makefile

@@ -6,7 +6,7 @@ mpssd-objs := mpssd.o sysfs.o
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 
-HOSTCFLAGS_mpssd.o += -I$(objtree)/usr/include
+HOSTCFLAGS_mpssd.o += -I$(objtree)/usr/include -I$(srctree)/tools/include
 
 ifdef DEBUG
 HOSTCFLAGS += -DDEBUG=$(DEBUG)

Documentation/mic/mpssd/mpssd.c

@@ -41,6 +41,7 @@
 #include "mpssd.h"
 #include <linux/mic_ioctl.h>
 #include <linux/mic_common.h>
+#include <tools/endian.h>
 
 static void init_mic(struct mic_info *mic);
 

tools/include/tools/endian.h

+#ifndef _TOOLS_ENDIAN_H
+#define _TOOLS_ENDIAN_H
+
+#include <byteswap.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+
+#ifndef htole16
+#define htole16(x) (x)
+#endif
+#ifndef htole32
+#define htole32(x) (x)
+#endif
+#ifndef htole64
+#define htole64(x) (x)
+#endif
+
+#else /* __BYTE_ORDER */
+
+#ifndef htole16
+#define htole16(x) __bswap_16(x)
+#endif
+#ifndef htole32
+#define htole32(x) __bswap_32(x)
+#endif
+#ifndef htole64
+#define htole64(x) __bswap_64(x)
+#endif
+
+#endif
+
+#endif /* _TOOLS_ENDIAN_H */