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Overview
Comment:Additional #ifdefing around _XOPEN_SOURCE. Ticket #2681. (CVS 4452)
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SHA1: eb5d78451ee2a5d8480537530f30fbb305bf7632
User & Date: drh 2007-10-01 17:47:00
Context
2007-10-02
19:56
Use local variables instead of #defines for the mutex name and length in OS/2's sqlite3_mutex_alloc(). (CVS 4453) check-in: 272959cc user: pweilbacher tags: trunk
2007-10-01
17:47
Additional #ifdefing around _XOPEN_SOURCE. Ticket #2681. (CVS 4452) check-in: eb5d7845 user: drh tags: trunk
17:45
Document that END TRANSACTION is an alias for COMMIT. Ticket #2656 (CVS 4451) check-in: ebe3e691 user: drh tags: trunk
Changes
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Changes to src/sqliteInt.h.

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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.611 2007/10/01 14:30:15 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
#include "sqliteLimit.h"

/*
** For testing purposes, the various size limit constants are really
................................................................................
  extern int sqlite3MAX_FUNCTION_ARG;
  extern int sqlite3MAX_VARIABLE_NUMBER;
  extern int sqlite3MAX_PAGE_SIZE;
  extern int sqlite3MAX_PAGE_COUNT;
  extern int sqlite3MAX_LIKE_PATTERN_LENGTH;
#endif















/*
** We need to define _XOPEN_SOURCE as follows in order to enable
** recursive mutexes on most unix systems.  But Mac OS X is different.
** The _XOPEN_SOURCE define causes problems for Mac OS X we are told,
** so it is omitted there.  See ticket #2673.





*/
#ifndef __MACOS__

#  define _XOPEN_SOURCE 500  /* Needed to enable pthread recursive mutexes */
#endif

#if defined(SQLITE_TCL) || defined(TCLSH)
# include <tcl.h>
#endif

................................................................................
** Setting NDEBUG makes the code smaller and run faster.  So the following
** lines are added to automatically set NDEBUG unless the -DSQLITE_DEBUG=1
** option is set.  Thus NDEBUG becomes an opt-in rather than an opt-out
** feature.
*/
#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
# define NDEBUG 1
#endif

/*
** The SQLITE_THREADSAFE macro must be defined as either 0 or 1.
** Older versions of SQLite used an optional THREADSAFE macro.
** We support that for legacy
*/
#if !defined(SQLITE_THREADSAFE)
#if defined(THREADSAFE)
# define SQLITE_THREADSAFE THREADSAFE
#else
# define SQLITE_THREADSAFE 1
#endif
#endif

/*
** These #defines should enable >2GB file support on Posix if the
** underlying operating system supports it.  If the OS lacks
** large file support, or if the OS is windows, these should be no-ops.
**







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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.612 2007/10/01 17:47:00 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
#include "sqliteLimit.h"

/*
** For testing purposes, the various size limit constants are really
................................................................................
  extern int sqlite3MAX_FUNCTION_ARG;
  extern int sqlite3MAX_VARIABLE_NUMBER;
  extern int sqlite3MAX_PAGE_SIZE;
  extern int sqlite3MAX_PAGE_COUNT;
  extern int sqlite3MAX_LIKE_PATTERN_LENGTH;
#endif


/*
** The SQLITE_THREADSAFE macro must be defined as either 0 or 1.
** Older versions of SQLite used an optional THREADSAFE macro.
** We support that for legacy
*/
#if !defined(SQLITE_THREADSAFE)
#if defined(THREADSAFE)
# define SQLITE_THREADSAFE THREADSAFE
#else
# define SQLITE_THREADSAFE 1
#endif
#endif

/*
** We need to define _XOPEN_SOURCE as follows in order to enable
** recursive mutexes on most unix systems.  But Mac OS X is different.
** The _XOPEN_SOURCE define causes problems for Mac OS X we are told,
** so it is omitted there.  See ticket #2673.
**
** Later we learn that _XOPEN_SOURCE is poorly or incorrectly
** implemented on some systems.  So we avoid defining it at all
** if it is already defined or if it is unneeded because we are
** not doing a threadsafe build.  Ticket #2681.
*/

#if !defined(_XOPEN_SOURCE) && !defined(__MACOS__) && SQLITE_THREADSAFE
#  define _XOPEN_SOURCE 500  /* Needed to enable pthread recursive mutexes */
#endif

#if defined(SQLITE_TCL) || defined(TCLSH)
# include <tcl.h>
#endif

................................................................................
** Setting NDEBUG makes the code smaller and run faster.  So the following
** lines are added to automatically set NDEBUG unless the -DSQLITE_DEBUG=1
** option is set.  Thus NDEBUG becomes an opt-in rather than an opt-out
** feature.
*/
#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
# define NDEBUG 1













#endif

/*
** These #defines should enable >2GB file support on Posix if the
** underlying operating system supports it.  If the OS lacks
** large file support, or if the OS is windows, these should be no-ops.
**