fix a `strict-aliasing' warning

ChangeLog

@@ -1,3 +1,10 @@
+2011-08-07  Robert Larice
+ * src/frontend/shyu.c :
+   fix a `strict-aliasing' warning
+     warning: dereferencing pointer 'current' does break strict-aliasing rules
+   FIXME, this code is, and was broken.
+     in if_sens_run() error messages are generated, and then ignored.
+
 2011-08-07  Robert Larice
  * configure.ac :
    use -O1 when debugging, otherwise gcc ignores -Wuninitialized

src/frontend/shyu.c

@@ -38,7 +38,7 @@ if_sens_run(CKTcircuit *ckt, wordlist *args, INPtables *tab)
     char *steptype;
     char *name;
     char *line;
-    struct line deck;
+    card deck;
     int i;
     int j;
     int error;
@@ -47,10 +47,13 @@ if_sens_run(CKTcircuit *ckt, wordlist *args, INPtables *tab)
     int which = -1;
 
     (void) sprintf(buf, ".%s", wl_flatten(args));
-    deck.li_next = deck.li_actual = NULL;
-    deck.li_error = NULL;
-    deck.li_linenum = 0;
-    deck.li_line = buf;
+
+    deck.nextcard      = NULL;
+    deck.actualLine    = NULL;
+    deck.error         = NULL;
+    deck.linenum       = 0;
+    deck.linenum_orig  = 0;
+    deck.line          = buf;
 
     current = (card *) &deck;
     line = current->line;