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Additional #ifdefing around _XOPEN_SOURCE. Ticket #2681. (CVS 4452)

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FossilOrigin-Name: eb5d78451ee2a5d8480537530f30fbb305bf7632
This commit is contained in:
drh
2007-10-01 17:47:00 +00:00
parent d94a6d3622
commit e5e7a901bd
3 changed files with 28 additions and 22 deletions
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36
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.611 2007/10/01 14:30:15 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.612 2007/10/01 17:47:00 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -59,13 +59,32 @@
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.
*/
#ifndef __MACOS__
#if !defined(_XOPEN_SOURCE) && !defined(__MACOS__) && SQLITE_THREADSAFE
# define _XOPEN_SOURCE 500 /* Needed to enable pthread recursive mutexes */
#endif
@@ -84,19 +103,6 @@
# 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