texinfo-4.13 info command gives Bus Error. There has been reported bug in texinfo 4.13a in info/window.c.
--- texinfo-4.13/info/window.c.orig	2013-10-09 17:07:32.875146313 -0700
+++ texinfo-4.13/info/window.c	2013-10-09 17:35:44.959317979 -0700
@@ -1579,10 +1579,11 @@
        mbi_advance (iter))
     {
       const char *carried_over_ptr;
-      size_t carried_over_len, carried_over_count;
+      size_t carried_over_len = 0;
+      size_t carried_over_count = 0;
       const char *cur_ptr = mbi_cur_ptr (iter);
-      int cur_len = mb_len (mbi_cur (iter));
-      int replen;
+      size_t cur_len = mb_len (mbi_cur (iter));
+      size_t replen = 0;
       int delim = 0;
       int rc;
 
@@ -1831,7 +1832,7 @@
  */
 int
 window_scan_line (WINDOW *win, int line, int phys,
-		  void (*fun) (void *closure, long cpos, int replen),
+		  void (*fun) (void *closure, long cpos, size_t replen),
 		  void *closure)
 {
   mbi_iterator_t iter;
@@ -1853,7 +1854,7 @@
     {
       const char *cur_ptr = mbi_cur_ptr (iter);
       int cur_len = mb_len (mbi_cur (iter));
-      int replen;
+      size_t replen;
 
       if (cur_ptr >= endp)
 	break;