[wide-int] Restore VAX build

[Richard Sandiford]

Installed as obvious.

Richard


Index: gcc/config/vax/vax.c
===================================================================
--- gcc/config/vax/vax.c        2013-11-03 10:24:01.013238719 +0000
+++ gcc/config/vax/vax.c        2013-11-03 10:24:02.308247979 +0000
@@ -643,7 +643,7 @@ vax_float_literal (rtx c)
     {
       int x = 1 << i;
       bool ok;
-      REAL_VALUE_FROM_INT (s, x, 0, mode);
+      REAL_VALUE_FROM_INT (s, x, mode);
 
       if (REAL_VALUES_EQUAL (r, s))
        return true;