diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index ec398c1cb..f509eb2ba 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,11 @@
+2013-11-21  Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* libc/posix/readdir_r.c: Add restrict keyword.
+	* libc/machine/spu/sys/dirent.h, libc/sys/decstation/sys/dirent.h,
+	libc/sys/linux/sys/dirent.h, libc/sys/rtems/sys/dirent.h,
+	libc/sys/sparc64/sys/dirent.h, libc/sys/sun4/sys/dirent.h,
+	libc/sys/sysvi386/sys/dirent.h: Add readdir_r() prototype.
+
 2013-11-21  Joel Sherrill <joel.sherrill@oarcorp.com>
 
 	* libc/sys/rdos/stat.c: Remove stray +.
diff --git a/newlib/libc/machine/spu/sys/dirent.h b/newlib/libc/machine/spu/sys/dirent.h
index 6a158ec4a..60da65a62 100644
--- a/newlib/libc/machine/spu/sys/dirent.h
+++ b/newlib/libc/machine/spu/sys/dirent.h
@@ -54,6 +54,8 @@ typedef struct {
 DIR *opendir(const char *);
 int closedir(DIR *);
 struct dirent *readdir (DIR *);
+int readdir_r (DIR *__restrict, struct dirent *__restrict,
+              struct dirent **__restrict);
 void rewinddir(DIR *);
 void seekdir(DIR *dir, off_t offset);
 off_t telldir(DIR *dir);
diff --git a/newlib/libc/posix/readdir_r.c b/newlib/libc/posix/readdir_r.c
index 1d526e309..d13775b87 100644
--- a/newlib/libc/posix/readdir_r.c
+++ b/newlib/libc/posix/readdir_r.c
@@ -51,9 +51,9 @@ extern int getdents (int fd, void *dp, int count);
  */
 int
 _DEFUN(readdir_r, (dirp, dp, dpp),
-	register DIR *dirp _AND
-	struct dirent *dp _AND
-	struct dirent **dpp) {
+	register DIR *__restrict dirp _AND
+	struct dirent *__restrict dp _AND
+	struct dirent **__restrict dpp) {
 
 struct dirent *tmpdp;
  
diff --git a/newlib/libc/sys/decstation/sys/dirent.h b/newlib/libc/sys/decstation/sys/dirent.h
index c5a90e9fe..c3abda639 100644
--- a/newlib/libc/sys/decstation/sys/dirent.h
+++ b/newlib/libc/sys/decstation/sys/dirent.h
@@ -25,6 +25,8 @@ typedef struct __dirdesc {
 
 DIR *opendir (const char *);
 struct dirent *readdir (DIR *);
+int readdir_r (DIR *__restrict, struct dirent *__restrict,
+               struct dirent **__restrict);
 void rewinddir (DIR *);
 int closedir (DIR *);
 
diff --git a/newlib/libc/sys/linux/sys/dirent.h b/newlib/libc/sys/linux/sys/dirent.h
index ec8ed89d4..a67378b5b 100644
--- a/newlib/libc/sys/linux/sys/dirent.h
+++ b/newlib/libc/sys/linux/sys/dirent.h
@@ -36,6 +36,8 @@ typedef struct {
 
 DIR *opendir(const char *);
 struct dirent *readdir(DIR *);
+int readdir_r(DIR *__restrict, struct dirent *__restrict,
+              struct dirent **__restrict);
 void rewinddir(DIR *);
 int closedir(DIR *);
 
diff --git a/newlib/libc/sys/rtems/sys/dirent.h b/newlib/libc/sys/rtems/sys/dirent.h
index c52c7bcf7..8d2aa38cb 100644
--- a/newlib/libc/sys/rtems/sys/dirent.h
+++ b/newlib/libc/sys/rtems/sys/dirent.h
@@ -26,6 +26,8 @@ typedef struct _dirdesc {
 
 DIR *opendir(const char *);
 struct dirent *readdir(DIR *);
+int readdir_r(DIR *__restrict, struct dirent *__restrict,
+              struct dirent **__restrict);
 void rewinddir(DIR *);
 int closedir(DIR *);
 void seekdir(DIR *dir, long loc);
diff --git a/newlib/libc/sys/sparc64/sys/dirent.h b/newlib/libc/sys/sparc64/sys/dirent.h
index 864bb5ca1..cb933b457 100644
--- a/newlib/libc/sys/sparc64/sys/dirent.h
+++ b/newlib/libc/sys/sparc64/sys/dirent.h
@@ -21,6 +21,8 @@ typedef struct __dirdesc {
 
 DIR *opendir (const char *);
 struct dirent *readdir (DIR *);
+int readdir_r (DIR *__restrict, struct dirent *__restrict,
+               struct dirent **__restrict);
 void rewinddir (DIR *);
 int closedir (DIR *);
 
diff --git a/newlib/libc/sys/sun4/sys/dirent.h b/newlib/libc/sys/sun4/sys/dirent.h
index b7ca90b0d..2e6fc456f 100644
--- a/newlib/libc/sys/sun4/sys/dirent.h
+++ b/newlib/libc/sys/sun4/sys/dirent.h
@@ -23,6 +23,8 @@ typedef struct __dirdesc {
 
 DIR *opendir (const char *);
 struct dirent *readdir (DIR *);
+int readdir_r (DIR *__restrict, struct dirent *__restrict,
+              struct dirent **__restrict);
 void rewinddir (DIR *);
 int closedir (DIR *);
 
diff --git a/newlib/libc/sys/sysvi386/sys/dirent.h b/newlib/libc/sys/sysvi386/sys/dirent.h
index 728042176..06af4faac 100644
--- a/newlib/libc/sys/sysvi386/sys/dirent.h
+++ b/newlib/libc/sys/sysvi386/sys/dirent.h
@@ -20,6 +20,8 @@ typedef struct _dirdesc {
 
 DIR *opendir (const char *);
 struct dirent *readdir (DIR *);
+int readdir_r (DIR *__restrict, struct dirent *__restrict,
+               struct dirent **__restrict);
 void rewinddir (DIR *);
 int closedir (DIR *);