diff -Naurp spim-7.2.1.ucb.orig/CPU/string-stream.c spim-7.2.1.ucb/CPU/string-stream.c
--- spim-7.2.1.ucb.orig/CPU/string-stream.c	2005-08-28 13:58:13.000000000 -0700
+++ spim-7.2.1.ucb/CPU/string-stream.c	2005-10-04 22:32:37.338885592 -0700
@@ -119,6 +119,9 @@ ss_printf (str_stream* ss, char* fmt, ..
 	free_space = ss->max_length - ss->empty_pos;
 	if (NULL == ss->buf)
 	  fatal_error ("realloc failed\n");
+
+	va_end (args);
+	va_start (args, fmt);
       }
   ss->empty_pos += n;