(__restrict_arr): Move definition out of #ifndef block.

Required because egcs-2.91.66 (aka 1.1.2) defines __restrict, but
doesn't define __restrict_arr.

lib/regex.h

@@ -523,11 +523,11 @@ extern int re_exec _RE_ARGS ((const char *));
 #   define __restrict
 #  endif
 # endif
+#endif
 /* For now unconditionally define __restrict_arr to expand to nothing.
    Ideally we would have a test for the compiler which allows defining
    it to restrict.  */
-# define __restrict_arr
-#endif
+#define __restrict_arr
 
 /* POSIX compatibility.  */
 extern int regcomp _RE_ARGS ((regex_t *__restrict __preg,