Suppress a few 'uninitialized variable' warnings that gcc emits only at

-O3 or higher (presumably because it inlines more things).  Per gripe
from Mark Mielke.

src/backend/access/nbtree/nbtinsert.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.145 2006/11/01 19:43:17 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.146 2006/11/11 01:14:18 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1082,6 +1082,9 @@ _bt_findsplitloc(Relation rel,
 												 BTREE_DEFAULT_FILLFACTOR);
 	else
 		state.fillfactor = BTREE_NONLEAF_FILLFACTOR;
+	state.newitemonleft = false;	/* these just to keep compiler quiet */
+	state.firstright = 0;
+	state.best_delta = 0;
 
 	/* Total free space available on a btree page, after fixed overhead */
 	leftspace = rightspace =

src/backend/optimizer/path/costsize.c

@@ -54,7 +54,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.168 2006/11/10 01:21:41 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.169 2006/11/11 01:14:19 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -626,7 +626,10 @@ cost_bitmap_tree_node(Path *path, Cost *cost, Selectivity *selec)
 		*selec = ((BitmapOrPath *) path)->bitmapselectivity;
 	}
 	else
+	{
 		elog(ERROR, "unrecognized node type: %d", nodeTag(path));
+		*cost = *selec = 0;		/* keep compiler quiet */
+	}
 }
 
 /*

src/backend/utils/adt/timestamp.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.168 2006/10/04 00:29:59 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.169 2006/11/11 01:14:19 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1257,7 +1257,10 @@ tm2timestamp(struct pg_tm * tm, fsec_t fsec, int *tzp, Timestamp *result)
 
 	/* Julian day routines are not correct for negative Julian days */
 	if (!IS_VALID_JULIAN(tm->tm_year, tm->tm_mon, tm->tm_mday))
+	{
+		*result = 0;			/* keep compiler quiet */
 		return -1;
+	}
 
 	date = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - POSTGRES_EPOCH_JDATE;
 	time = time2t(tm->tm_hour, tm->tm_min, tm->tm_sec, fsec);
@@ -1266,11 +1269,17 @@ tm2timestamp(struct pg_tm * tm, fsec_t fsec, int *tzp, Timestamp *result)
 	*result = date * USECS_PER_DAY + time;
 	/* check for major overflow */
 	if ((*result - time) / USECS_PER_DAY != date)
+	{
+		*result = 0;			/* keep compiler quiet */
 		return -1;
+	}
 	/* check for just-barely overflow (okay except time-of-day wraps) */
 	if ((*result < 0 && date >= 0) ||
 		(*result >= 0 && date < 0))
+	{
+		*result = 0;			/* keep compiler quiet */
 		return -1;
+	}
 #else
 	*result = date * SECS_PER_DAY + time;
 #endif