add column offset to all syntax errors
diff --git a/Include/symtable.h b/Include/symtable.h
index d5ef96f..9b1b75b 100644
--- a/Include/symtable.h
+++ b/Include/symtable.h
@@ -46,7 +46,9 @@
     unsigned ste_returns_value : 1;  /* true if namespace uses return with
                                         an argument */
     int ste_lineno;          /* first line of block */
+    int ste_col_offset;      /* offset of first line of block */
     int ste_opt_lineno;      /* lineno of last exec or import * */
+    int ste_opt_col_offset;  /* offset of last exec or import * */
     int ste_tmpname;         /* counter for listcomp temp vars */
     struct symtable *ste_table;
 } PySTEntryObject;