Merge branch 'github-pull-45'

These issues were found during an attempt to build make-initrd with musl
libc.

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>

Author: legionus

runtime/src/halt/hddown.c

@@ -17,6 +17,7 @@ const char *v_hddown = "@(#)hddown.c  1.02  22-Apr-2003  miquels@cistron.nl";
 #include <string.h>
 #include <fcntl.h>
 #include <dirent.h>
+#include <libgen.h>
 
 #include <sys/ioctl.h>
 #include <linux/hdreg.h>

runtime/src/libinitramfs/memory.c

@@ -5,7 +5,6 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <errno.h>
-#include <error.h>
 #include <limits.h>
 
 #include "rd/memory.h"

utils/initrd-put/initrd-put.c

@@ -20,6 +20,7 @@
 #include <fcntl.h>
 #include <ctype.h>
 #include <regex.h>
+#include <string.h>
 
 #include "config.h"
 #include "memory.h"

utils/initrd-put/queue.h

@@ -3,6 +3,7 @@
 #define __INITRD_PUT_QUEUE_H__
 
 #include <sys/stat.h>
+#include <sys/types.h>
 #include <stdbool.h>
 
 struct file {

utils/initrd-scanmod/initrd-scanmod.c

@@ -9,6 +9,7 @@
 #include <getopt.h>
 #include <ctype.h>
 #include <err.h>
+#include <libgen.h>
 
 #include "initrd-scanmod.h"
 #include "config.h"