1 files changed, 17 insertions, 0 deletions
diff --git a/libc/stdlib/msize.c b/libc/stdlib/msize.c
new file mode 100644
index 0000000..e910c44
--- /dev/null
+++ b/libc/stdlib/msize.c
@@ -0,0 +1,17 @@
+/* msize.c -- a wrapper for malloc_usable_size.  */
+
+#include <_ansi.h>
+#include <reent.h>
+#include <stdlib.h>
+#include <malloc.h>
+
+#ifndef _REENT_ONLY
+
+size_t
+_DEFUN (malloc_usable_size, (ptr),
+	_PTR ptr)
+{
+  return _malloc_usable_size_r (_REENT, ptr);
+}
+
+#endif