The heralded `Grand Unified Configuration scheme' (GUC)

That means you can now set your options in either or all of $PGDATA/configuration,
some postmaster option (--enable-fsync=off), or set a SET command. The list of
options is in backend/utils/misc/guc.c, documentation will be written post haste.

pg_options is gone, so is that pq_geqo config file. Also removed were backend -K,
-Q, and -T options (no longer applicable, although -d0 does the same as -Q).

Added to configure an --enable-syslog option.

changed all callers from TPRINTF to elog(DEBUG)

src/include/storage/spin.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: spin.h,v 1.11 2000/01/26 05:58:33 momjian Exp $
+ * $Id: spin.h,v 1.12 2000/05/31 00:28:38 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -28,6 +28,10 @@
 
 typedef int SPINLOCK;
 
+#ifdef LOCK_DEBUG
+extern bool Trace_spinlocks;
+#endif
+
 extern void CreateSpinlocks(IPCKey key);
 extern void InitSpinLocks(void);
 extern void SpinAcquire(SPINLOCK lockid);