Allow include files to compile own their own.

Strip unused include files out unused include files, and add needed
includes to C files.

The next step is to remove unused include files in C files.

src/include/access/genam.h

@@ -7,14 +7,13 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/genam.h,v 1.62 2006/07/03 22:45:39 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/genam.h,v 1.63 2006/07/13 16:49:18 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef GENAM_H
 #define GENAM_H
 
-#include "access/itup.h"
 #include "access/relscan.h"
 #include "access/sdir.h"
 #include "nodes/primnodes.h"

src/include/access/gistscan.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/gistscan.h,v 1.29 2006/04/03 13:44:33 teodor Exp $
+ * $PostgreSQL: pgsql/src/include/access/gistscan.h,v 1.30 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -15,7 +15,6 @@
 #define GISTSCAN_H
 
 #include "access/relscan.h"
-#include "access/xlogdefs.h"
 
 extern Datum gistbeginscan(PG_FUNCTION_ARGS);
 extern Datum gistrescan(PG_FUNCTION_ARGS);

src/include/access/hash.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.72 2006/07/11 21:05:57 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.73 2006/07/13 16:49:19 momjian Exp $
  *
  * NOTES
  *		modeled after Margo Seltzer's hash implementation for unix.
@@ -22,6 +22,7 @@
 #include "access/sdir.h"
 #include "access/xlog.h"
 #include "fmgr.h"
+#include "storage/lock.h"
 
 /*
  * Mapping from hash bucket number to physical block number of bucket's

src/include/access/htup.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/htup.h,v 1.83 2006/06/27 02:51:39 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/htup.h,v 1.84 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -15,9 +15,8 @@
 #define HTUP_H
 
 #include "storage/bufpage.h"
+#include "storage/itemptr.h"
 #include "storage/relfilenode.h"
-#include "access/transam.h"
-
 
 /*
  * MaxTupleAttributeNumber limits the number of (user) columns in a tuple.

src/include/access/itup.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/itup.h,v 1.46 2006/05/07 01:21:30 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/itup.h,v 1.47 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -16,9 +16,9 @@
 
 #include "access/tupdesc.h"
 #include "access/tupmacs.h"
+#include "storage/bufpage.h"
 #include "storage/itemptr.h"
 
-
 /*
  * Index tuple header structure
  *

src/include/access/relscan.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/relscan.h,v 1.45 2006/05/07 01:21:30 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/relscan.h,v 1.46 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -15,6 +15,7 @@
 #define RELSCAN_H
 
 #include "access/skey.h"
+#include "utils/rel.h"
 #include "utils/tqual.h"
 
 

src/include/access/tuptoaster.h

@@ -6,17 +6,14 @@
  *
  * Copyright (c) 2000-2006, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/include/access/tuptoaster.h,v 1.26 2006/03/05 15:58:54 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/access/tuptoaster.h,v 1.27 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef TUPTOASTER_H
 #define TUPTOASTER_H
 
-#include "access/heapam.h"
 #include "access/htup.h"
-#include "access/tupmacs.h"
-#include "utils/rel.h"
 
 
 /*

src/include/access/twophase.h

@@ -7,17 +7,17 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/twophase.h,v 1.7 2006/03/05 15:58:54 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/access/twophase.h,v 1.8 2006/07/13 16:49:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef TWOPHASE_H
 #define TWOPHASE_H
 
+#include "access/xlogdefs.h"
 #include "storage/proc.h"
 #include "utils/timestamp.h"
 
-
 /*
  * GlobalTransactionData is defined in twophase.c; other places have no
  * business knowing the internal definition.

src/include/access/xlog.h

@@ -6,13 +6,12 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.71 2006/03/24 04:32:13 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.72 2006/07/13 16:49:19 momjian Exp $
  */
 #ifndef XLOG_H
 #define XLOG_H
 
 #include "access/rmgr.h"
-#include "access/transam.h"
 #include "access/xlogdefs.h"
 #include "lib/stringinfo.h"
 #include "storage/buf.h"