--- gcc-4.6.2/gcc/gengtype.c.orig       2014-10-17 18:04:08.510428959 -0300
+++ gcc-4.6.2/gcc/gengtype.c    2014-10-17 18:04:25.160429286 -0300
@@ -3594,13 +3594,14 @@ write_field_root (outf_p f, pair_p v, ty
                  int has_length, struct fileloc *line, const char *if_marked,
                  bool emit_pch, type_p field_type, const char *field_name)
 {
+      struct pair newv;
+
   /* If the field reference is relative to V, rather than to some
      subcomponent of V, we can mark any subarrays with a single stride.
      We're effectively treating the field as a global variable in its
      own right.  */
   if (v && type == v->type)
     {
-      struct pair newv;

       newv = *v;
       newv.type = field_type;