1 files changed, 16 insertions, 2 deletions
diff --git a/newlib/libc/stdlib/atexit.c b/newlib/libc/stdlib/atexit.c
index 21ffd6e7b..88cdd234c 100644
--- a/newlib/libc/stdlib/atexit.c
+++ b/newlib/libc/stdlib/atexit.c
@@ -50,8 +50,9 @@ Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
 <<lseek>>, <<read>>, <<sbrk>>, <<write>>.
 */
 
+#include <stddef.h>
 #include <stdlib.h>
-#include "atexit.h"
+#include <reent.h>
 
 /*
  * Register a function to be performed at exit.
@@ -62,5 +63,18 @@ _DEFUN (atexit,
 	(fn),
 	_VOID _EXFUN ((*fn), (_VOID)))
 {
-  return __register_exitproc (__et_atexit, fn, NULL, NULL);
+  register struct _atexit *p;
+
+  if ((p = _REENT->_atexit) == NULL)
+    _REENT->_atexit = p = &_REENT->_atexit0;
+  if (p->_ind >= _ATEXIT_SIZE)
+    {
+      if ((p = (struct _atexit *) malloc (sizeof *p)) == NULL)
+	return -1;
+      p->_ind = 0;
+      p->_next = _REENT->_atexit;
+      _REENT->_atexit = p;
+    }
+  p->_fns[p->_ind++] = fn;
+  return 0;
 }