* implement a new `struct _reent' that is significantly smaller. use this

if _REENT_SMALL is defined in config.h.  define this for xstormy16.

newlib/libc/stdlib/drand48.c

@@ -17,6 +17,7 @@ double
 _DEFUN (_drand48_r, (r),
        struct _reent *r)
 {
+  _REENT_CHECK_RAND48(r);
   return _erand48_r(r, __rand48_seed);
 }