Index: src/pager.c
==================================================================
--- src/pager.c
+++ src/pager.c
@@ -16,11 +16,11 @@
 ** is separate from the database file.  The pager also implements file
 ** locking to prevent two processes from writing the same database
 ** file simultaneously, or one process from reading the database while
 ** another is writing.
 **
-** @(#) $Id: pager.c,v 1.275 2006/11/06 21:20:26 drh Exp $
+** @(#) $Id: pager.c,v 1.276 2006/11/23 11:58:44 drh Exp $
 */
 #ifndef SQLITE_OMIT_DISKIO
 #include "sqliteInt.h"
 #include "os.h"
 #include "pager.h"
@@ -348,11 +348,13 @@
 #endif
 
 /*
 ** The default size of a disk sector
 */
-#define PAGER_SECTOR_SIZE 512
+#ifndef PAGER_SECTOR_SIZE
+# define PAGER_SECTOR_SIZE 512
+#endif
 
 /*
 ** Page number PAGER_MJ_PGNO is never used in an SQLite database (it is
 ** reserved for working around a windows/posix incompatibility). It is
 ** used in the journal to signify that the remainder of the journal file