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/*
* PostgreSQL configuration-settings file.
*
* pg_config.h.in is processed by configure to produce pg_config.h.
*
* If you want to modify any of the tweakable settings in Part 2
* of this file, you can do it in pg_config.h.in before running configure,
* or in pg_config.h afterwards. Of course, if you edit pg_config.h, then your
* changes will be overwritten the next time you run configure.
*
* $Id: pg_config.h.in,v 1.33 2002/11/07 22:08:30 tgl Exp $
*/
#ifndef PG_CONFIG_H
#define PG_CONFIG_H
/*
*------------------------------------------------------------------------
* Part 1: feature symbols and limits that are set by configure based on
* user-supplied switches. This is first so that stuff in Part 2 can
* depend on these values.
*
* Beware of "fixing" configure-time mistakes by editing these values,
* since configure may have inserted the settings in other files as well
* as here. Best to rerun configure if you forgot --enable-integer-datetimes
* or whatever.
*------------------------------------------------------------------------
*/
/* The version number is actually hard-coded into configure.in */
#undef PG_VERSION
/* A canonical string containing the version number, platform, and C compiler */
#undef PG_VERSION_STR
/* Set to 1 if you want 64-bit integer timestamp and interval support (--enable-integer-datetimes) */
#undef USE_INTEGER_DATETIMES
/* Set to 1 if you want single-byte recode (--enable-recode) */
#undef CYR_RECODE
/* Set to 1 if you want ASSERT checking (--enable-cassert) */
#undef USE_ASSERT_CHECKING
/* Define to build with Kerberos 4 support (--with-krb4[=DIR]) */
#undef KRB4
/* Define to build with Kerberos 5 support (--with-krb5[=DIR]) */
#undef KRB5
/* Kerberos name of the Postgres service principal (--with-krb-srvnam=NAME) */
#undef PG_KRB_SRVNAM
/* Define to build with (Open)SSL support (--with-openssl[=DIR]) */
#undef USE_SSL
/* Define to build with PAM Support */
#undef USE_PAM
/*
* DEF_PGPORT is the TCP port number on which the Postmaster listens and
* which clients will try to connect to. This is just a default value;
* it can be overridden at postmaster or client startup. It's awfully
* convenient if your clients have the right default compiled in, though.
* (--with-pgport=PORTNUM)
*/
#undef DEF_PGPORT
/* ... and once more as a string constant instead */
#undef DEF_PGPORT_STR
/*
* Default soft limit on number of backend server processes per postmaster;
* this is just the default setting for the postmaster's -N switch.
* (--with-maxbackends=N)
*/
#undef DEF_MAXBACKENDS
/* --enable-nls */
#undef ENABLE_NLS
/* location of locale files */
#undef LOCALEDIR
/*
*------------------------------------------------------------------------
* Part 2: feature symbols and limits that are user-configurable, but
* only by editing this file ... there's no configure support for them.
*
* Editing this file and doing a full rebuild (and an initdb if noted)
* should be sufficient to change any of these.
*------------------------------------------------------------------------
*/
/*
* Default number of buffers in shared buffer pool (each of size BLCKSZ).
* This is just the default setting for the postmaster's -B switch.
* Perhaps it ought to be configurable from a configure switch.
* NOTE: default setting corresponds to the minimum number of buffers
* that postmaster.c will allow for the default MaxBackends value.
*/
#define DEF_NBUFFERS (DEF_MAXBACKENDS > 8 ? DEF_MAXBACKENDS * 2 : 16)
/*
* Size of a disk block --- this also limits the size of a tuple.
* You can set it bigger if you need bigger tuples (although TOAST
* should reduce the need to have large tuples, since fields can now
* be spread across multiple tuples).
*
* BLCKSZ must be a power of 2.
* The maximum possible value of BLCKSZ is currently 2^15 (32768).
* This is determined by the 15-bit widths of the lp_off and lp_len
* fields in ItemIdData (see include/storage/itemid.h).
*
* CAUTION: changing BLCKSZ requires an initdb.
*/
#define BLCKSZ 8192
/*
* RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
* Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
* relations bigger than that are divided into multiple files.
*
* CAUTION: RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file
* size. This is typically 2Gb or 4Gb in a 32-bit operating system. By
* default, we make the limit 1Gb to avoid any possible integer-overflow
* problems within the OS. A limit smaller than necessary only means we
* divide a large relation into more chunks than necessary, so it seems
* best to err in the direction of a small limit. (Besides, a power-of-2
* value saves a few cycles in md.c.)
*
* CAUTION: changing RELSEG_SIZE requires an initdb.
*/
#define RELSEG_SIZE (0x40000000 / BLCKSZ)
/*
* Maximum number of columns in an index and maximum number of arguments
* to a function. They must be the same value.
*
* The minimum value is 8 (index creation uses 8-argument functions).
* There is no specific upper limit, although large values will waste
* system-table space and processing time.
*
* CAUTION: changing these requires an initdb.
*
* BTW: if you need to call dynamically-loaded old-style C functions that
* have more than 16 arguments, you will also need to add cases to the
* switch statement in fmgr_oldstyle() in src/backend/utils/fmgr/fmgr.c.
* But consider converting such functions to new-style instead...
*/
#define INDEX_MAX_KEYS 32
#define FUNC_MAX_ARGS INDEX_MAX_KEYS
/*
* Define this to make libpgtcl's "pg_result -assign" command process C-style
* backslash sequences in returned tuple data and convert Postgres array
* attributes into Tcl lists. CAUTION: this conversion is *wrong* unless
* you install the routines in contrib/string/string_io to make the backend
* produce C-style backslash sequences in the first place.
*/
/* #define TCL_ARRAYS */
/*
* User locks are handled totally on the application side as long term
* cooperative locks which extend beyond the normal transaction boundaries.
* Their purpose is to indicate to an application that someone is `working'
* on an item. Define this flag to enable user locks. You will need the
* loadable module user-locks.c to use this feature.
*/
#define USER_LOCKS
/*
* Define this if you want psql to _always_ ask for a username and a password
* for password authentication.
*/
/* #define PSQL_ALWAYS_GET_PASSWORDS */
/*
* Define this if you want to allow the lo_import and lo_export SQL functions
* to be executed by ordinary users. By default these functions are only
* available to the Postgres superuser. CAUTION: these functions are
* SECURITY HOLES since they can read and write any file that the Postgres
* backend has permission to access. If you turn this on, don't say we
* didn't warn you.
*/
/* #define ALLOW_DANGEROUS_LO_FUNCTIONS */
/*
* Use btree bulkload code:
* this code is moderately slow (~10% slower) compared to the regular
* btree (insertion) build code on sorted or well-clustered data. on
* random data, however, the insertion build code is unusable -- the
* difference on a 60MB heap is a factor of 15 because the random
* probes into the btree thrash the buffer pool.
*
* Great thanks to Paul M. Aoki (aoki@CS.Berkeley.EDU)
*/
#define FASTBUILD /* access/nbtree/nbtsort.c */
/*
* MAXPGPATH: standard size of a pathname buffer in Postgres (hence,
* maximum usable pathname length is one less).
*
* We'd use a standard system header symbol for this, if there weren't
* so many to choose from: MAXPATHLEN, _POSIX_PATH_MAX, MAX_PATH, PATH_MAX
* are all defined by different "standards", and often have different
* values on the same platform! So we just punt and use a reasonably
* generous setting here.
*/
#define MAXPGPATH 1024
/*
* DEFAULT_MAX_EXPR_DEPTH: default value of max_expr_depth SET variable.
*/
#define DEFAULT_MAX_EXPR_DEPTH 10000
/*
* PG_SOMAXCONN: maximum accept-queue length limit passed to listen(2).
* You'd think we should use SOMAXCONN from <sys/socket.h>, but on many
* systems that symbol is much smaller than the kernel's actual limit.
* In any case, this symbol need be twiddled only if you have a kernel
* that refuses large limit values, rather than silently reducing the
* value to what it can handle (which is what most if not all Unixen do).
*/
#define PG_SOMAXCONN 10000
/*
* You can try changing this if you have a machine with bytes of another
* size, but no guarantee...
*/
#define BITS_PER_BYTE 8
/*
* Define this if your operating system supports AF_UNIX family sockets.
*/
#if !defined(__QNX__) && !defined(__BEOS__)
# define HAVE_UNIX_SOCKETS 1
#endif
/*
* This is the default directory in which AF_UNIX socket files are placed.
* Caution: changing this risks breaking your existing client applications,
* which are likely to continue to look in the old directory. But if you
* just hate the idea of sockets in /tmp, here's where to twiddle it.
* You can also override this at runtime with the postmaster's -k switch.
*/
#define DEFAULT_PGSOCKET_DIR "/tmp"
/*
*------------------------------------------------------------------------
* These hand-configurable symbols are for enabling debugging code,
* not for controlling user-visible features or resource limits.
*------------------------------------------------------------------------
*/
/* Define this to cause pfree()'d memory to be cleared immediately,
* to facilitate catching bugs that refer to already-freed values.
* XXX For 7.1 development, define this automatically if --enable-cassert.
* In the long term it probably doesn't need to be on by default.
*/
#ifdef USE_ASSERT_CHECKING
#define CLOBBER_FREED_MEMORY
#endif
/* Define this to check memory allocation errors (scribbling on more
* bytes than were allocated).
* XXX For 7.1 development, define this automatically if --enable-cassert.
* In the long term it probably doesn't need to be on by default.
*/
#ifdef USE_ASSERT_CHECKING
#define MEMORY_CONTEXT_CHECKING
#endif
/* Define this to force all parse and plan trees to be passed through
* copyObject(), to facilitate catching errors and omissions in copyObject().
*/
/* #define COPY_PARSE_PLAN_TREES */
/* Enable debugging print statements in the date/time support routines. */
/* #define DATEDEBUG */
/* Enable debugging print statements for lock-related operations. */
/* #define LOCK_DEBUG */
/*
* Other debug #defines (documentation, anyone?)
*/
/* #define IPORTAL_DEBUG */
/* #define HEAPDEBUGALL */
/* #define ISTRATDEBUG */
/* #define ACLDEBUG */
/* #define RTDEBUG */
/* #define GISTDEBUG */
/*
* defining unsafe floats will make float4 and float8 ops faster
* by suppressing overflow/underflow checks.
*/
/* #define UNSAFE_FLOATS */
/*
*------------------------------------------------------------------------
* Part 3: system configuration information that is auto-detected by
* configure. In theory you shouldn't have to touch any of this stuff
* by hand. In the real world, configure might get it wrong...
*------------------------------------------------------------------------
*/
/* Define const as empty if your compiler doesn't grok const. */
#undef const
/* Define as your compiler's spelling of "inline", or empty if no inline. */
#undef inline
/* Define as empty if the C compiler doesn't understand "signed". */
#undef signed
/* Define as empty if the C compiler doesn't understand "volatile". */
#undef volatile
/* Define to 1 to make fseeko visible on some hosts. */
#undef _LARGEFILE_SOURCE
/* Define for large files, on AIX-style hosts. */
#undef _LARGE_FILES
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS
/* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
#undef HAVE_FSEEKO
/* Define if your cpp understands the ANSI stringizing operators in macros */
#undef HAVE_STRINGIZE
/* Set to 1 if you have <crypt.h> */
#undef HAVE_CRYPT_H
/* Set to 1 if you have <dld.h> */
#undef HAVE_DLD_H
/* Set to 1 if you have <endian.h> */
#undef HAVE_ENDIAN_H
/* Set to 1 if you have <fp_class.h> */
#undef HAVE_FP_CLASS_H
/* Set to 1 if you have <getopt.h> */
#undef HAVE_GETOPT_H
/* Set to 1 if you have <history.h> */
#undef HAVE_HISTORY_H
/* Set to 1 if you have <ieeefp.h> */
#undef HAVE_IEEEFP_H
/* Set to 1 if you have <netinet/tcp.h> */
#undef HAVE_NETINET_TCP_H
/* Set to 1 if you have <readline.h> */
#undef HAVE_READLINE_H
/* Set to 1 if you have <readline/history.h> */
#undef HAVE_READLINE_HISTORY_H
/* Set to 1 if you have <readline/readline.h> */
#undef HAVE_READLINE_READLINE_H
/* Set to 1 if you have <sys/ipc.h> */
#undef HAVE_SYS_IPC_H
/* Set to 1 if you have <sys/select.h> */
#undef HAVE_SYS_SELECT_H
/* Set to 1 if you have <sys/un.h> */
#undef HAVE_SYS_UN_H
/* Set to 1 if you have <sys/sem.h> */
#undef HAVE_SYS_SEM_H
/* Set to 1 if you have <sys/shm.h> */
#undef HAVE_SYS_SHM_H
/* Set to 1 if you have <kernel/OS.h> */
#undef HAVE_KERNEL_OS_H
/* Set to 1 if you have <SupportDefs.h> */
#undef HAVE_SUPPORTDEFS_H
/* Set to 1 if you have <kernel/image.h> */
#undef HAVE_KERNEL_IMAGE_H
/* Set to 1 if you have <termios.h> */
#undef HAVE_TERMIOS_H
/* Set to 1 if you have <sys/pstat.h> */
#undef HAVE_SYS_PSTAT_H
/* Define to 1 if you have strings.h */
#undef HAVE_STRINGS_H
/* Define if you have the setproctitle function. */
#undef HAVE_SETPROCTITLE
/* Define if you have the pstat function. */
#undef HAVE_PSTAT
/* Define if the PS_STRINGS thing exists. */
#undef HAVE_PS_STRINGS
/* Define if you have the stricmp function. */
#undef HAVE_STRICMP
/* Set to 1 if you have <pwd.h> */
#undef HAVE_PWD_H
/* Set to 1 if you have gettimeofday(a) instead of gettimeofday(a,b) */
#undef GETTIMEOFDAY_1ARG
#ifdef GETTIMEOFDAY_1ARG
# define gettimeofday(a,b) gettimeofday(a)
#endif
/* Set to 1 if you have snprintf() in the C library */
#undef HAVE_SNPRINTF
/* Set to 1 if your standard system headers declare snprintf() */
#undef HAVE_DECL_SNPRINTF
/* Set to 1 if you have vsnprintf() in the C library */
#undef HAVE_VSNPRINTF
/* Set to 1 if your standard system headers declare vsnprintf() */
#undef HAVE_DECL_VSNPRINTF
/* Set to 1 if you have strerror() */
#undef HAVE_STRERROR
/* Set to 1 if you have isinf() */
#undef HAVE_ISINF
/*
* These are all related to port/isinf.c
*/
#undef HAVE_FPCLASS
#undef HAVE_FP_CLASS
#undef HAVE_FP_CLASS_H
#undef HAVE_FP_CLASS_D
#undef HAVE_CLASS
/* Set to 1 if you have gethostname() */
#undef HAVE_GETHOSTNAME
/* Set to 1 if struct tm has a tm_zone member */
#undef HAVE_TM_ZONE
/* Set to 1 if you have int timezone.
* NOTE: if both tm_zone and a global timezone variable exist,
* using the tm_zone field should probably be preferred,
* since global variables are inherently not thread-safe.
*/
#undef HAVE_INT_TIMEZONE
/* Set to 1 if you have cbrt() */
#undef HAVE_CBRT
/* Set to 1 if you have inet_aton() */
#undef HAVE_INET_ATON
/* Set to 1 if you have fcvt() */
#undef HAVE_FCVT
/* Set to 1 if you have rint() */
#undef HAVE_RINT
/* Set to 1 if you have finite() */
#undef HAVE_FINITE
/* Set to 1 if you have memmove() */
#undef HAVE_MEMMOVE
/* Set to 1 if you have sigsetjmp() */
#undef HAVE_SIGSETJMP
/* Set to 1 if you have sysconf() */
#undef HAVE_SYSCONF
/* Set to 1 if you have getrusage() */
#undef HAVE_GETRUSAGE
/* Set to 1 if you have waitpid() */
#undef HAVE_WAITPID
/* Set to 1 if you have setsid() */
#undef HAVE_SETSID
/* Set to 1 if you have sigprocmask() */
#undef HAVE_SIGPROCMASK
/* Set to 1 if you have sigprocmask() */
#undef HAVE_STRCASECMP
/* Set to 1 if you have strtol() */
#undef HAVE_STRTOL
/* Set to 1 if you have strtoul() */
#undef HAVE_STRTOUL
/* Set to 1 if you have strdup() */
#undef HAVE_STRDUP
/* Set to 1 if you have random() */
#undef HAVE_RANDOM
/* Set to 1 if you have srandom() */
#undef HAVE_SRANDOM
/* The random() function is expected to yield values 0 .. MAX_RANDOM_VALUE */
/* Currently, all known implementations yield 0..2^31-1, so we just hardwire
* this constant. We could do a configure test if it proves to be necessary.
* CAUTION: Think not to replace this with RAND_MAX. RAND_MAX defines the
* maximum value of the older rand() function, which is often different from
* --- and considerably inferior to --- random().
*/
#define MAX_RANDOM_VALUE (0x7FFFFFFF)
/* Define if you have dlopen() */
#undef HAVE_DLOPEN
/* Define if you have fdatasync() */
#undef HAVE_FDATASYNC
/* Define if the standard header unistd.h declares fdatasync() */
#undef HAVE_DECL_FDATASYNC
/* Set to 1 if you have libz.a */
#undef HAVE_LIBZ
/* Set to 1 if you have libreadline.a */
#undef HAVE_LIBREADLINE
/* Set to 1 if your libreadline defines rl_completion_append_character */
#undef HAVE_RL_COMPLETION_APPEND_CHARACTER
/* Set to 1 if you have rl_completion_matches */
#undef HAVE_RL_COMPLETION_MATCHES
/* Set to 1 if you have rl_filename_completion_function */
#undef HAVE_RL_FILENAME_COMPLETION_FUNCTION
/* Set to 1 if you have getopt_long() (GNU long options) */
#undef HAVE_GETOPT_LONG
/* Set to 1 if you have union semun */
#undef HAVE_UNION_SEMUN
/* Set to 1 if you have struct cmsgcred */
#undef HAVE_STRUCT_CMSGCRED
/* Set to 1 if you have struct fcred */
#undef HAVE_STRUCT_FCRED
/* Set to 1 if you have struct sockcred */
#undef HAVE_STRUCT_SOCKCRED
/* Set to 1 if you have struct sockaddr_un */
#undef HAVE_STRUCT_SOCKADDR_UN
/* Set to 1 if you have krb5_ticket.enc_part2 */
#undef HAVE_KRB5_TICKET_ENC_PART2
/* Set to 1 if you have krb5_ticket.client */
#undef HAVE_KRB5_TICKET_CLIENT
/* Set to 1 if you have krb5_error.text.data */
#undef HAVE_KRB5_ERROR_TEXT_DATA
/* Set to 1 if you have krb5_ticket.e_data */
#undef HAVE_KRB5_ERROR_E_DATA
/* Set to 1 if type "long int" works and is 64 bits */
#undef HAVE_LONG_INT_64
/* Set to 1 if type "long long int" works and is 64 bits */
#undef HAVE_LONG_LONG_INT_64
/* Set to 1 if type "long long int" constants should be suffixed by LL */
#undef HAVE_LL_CONSTANTS
/* Define this as the appropriate snprintf format for 64-bit ints, if any */
#undef INT64_FORMAT
/*
* We need a #define symbol for sizeof(Datum) for use in some #if tests.
*/
#undef SIZEOF_DATUM
/*
* These must be defined as the alignment requirement (NOT the size) of
* each of the basic C data types (except char, which we assume has align 1).
* MAXIMUM_ALIGNOF is the largest alignment requirement for any C data type.
* ALIGNOF_LONG_LONG_INT need only be defined if HAVE_LONG_LONG_INT_64 is.
*/
#undef ALIGNOF_SHORT
#undef ALIGNOF_INT
#undef ALIGNOF_LONG
#undef ALIGNOF_LONG_LONG_INT
#undef ALIGNOF_DOUBLE
#undef MAXIMUM_ALIGNOF
/* Define as the type of the 3rd argument to accept() */
#undef ACCEPT_TYPE_ARG3
/* Define if POSIX signal interface is available */
#undef HAVE_POSIX_SIGNALS
/* Define if you have the optreset variable */
#undef HAVE_INT_OPTRESET
/* Define if you have strtoll() */
#undef HAVE_STRTOLL
/* Define if you have strtoq() */
#undef HAVE_STRTOQ
/* Define if you have strtoull() */
#undef HAVE_STRTOULL
/* Define if you have strtouq() */
#undef HAVE_STRTOUQ
/* Define if you have atexit() */
#undef HAVE_ATEXIT
/* Define if you have on_exit() */
#undef HAVE_ON_EXIT
/* Define if the corresponding types are defined in standard headers */
#undef HAVE_INT8
#undef HAVE_UINT8
#undef HAVE_INT64
#undef HAVE_UINT64
#undef HAVE_SIG_ATOMIC_T
/* Define if you have syslog() */
#undef HAVE_SYSLOG
/* Define exactly one of these symbols to select semaphore implementation */
#undef USE_NAMED_POSIX_SEMAPHORES
#undef USE_UNNAMED_POSIX_SEMAPHORES
#undef USE_SYSV_SEMAPHORES
/* Define exactly one of these symbols to select shared-mem implementation */
#undef USE_SYSV_SHARED_MEMORY
/*
*------------------------------------------------------------------------
* Part 4: pull in system-specific declarations.
*
* This is still configure's responsibility, because it picks where
* the "pg_config_os.h" symlink points...
*------------------------------------------------------------------------
*/
/*
* Pull in OS-specific declarations (using link created by configure)
*/
#include "pg_config_os.h"
/*
*------------------------------------------------------------------------
* Part 5: provide default declarations for various things that should be
* provided by the system headers or the port-specific pg_config_os.h file,
* but sometimes aren't.
*
* This must be last so that pg_config_os.h can override the defaults.
* In particular, we must not pull in any system header files until we
* have read pg_config_os.h (largefile support tends to break otherwise).
*------------------------------------------------------------------------
*/
#ifndef DLLIMPORT
#define DLLIMPORT /* no special DLL markers on most ports */
#endif
/*
* The following is used as the arg list for signal handlers. Any ports
* that take something other than an int argument should override this in
* their pg_config_os.h file. Note that variable names are required
* because it is used in both the prototypes as well as the definitions.
* Note also the long name. We expect that this won't collide with
* other names causing compiler warnings.
*/
#ifndef SIGNAL_ARGS
#define SIGNAL_ARGS int postgres_signal_arg
#endif
/*
* Default "extern" declarations or macro substitutes for library routines.
* When necessary, these routines are provided by files in src/port/.
*/
#ifndef HAVE_FSEEKO
#define fseeko(a, b, c) fseek((a), (b), (c))
#define ftello(a) ftell((a))
#endif
#ifndef HAVE_ISINF
extern int isinf(double x);
#endif
#ifndef HAVE_GETHOSTNAME
extern int gethostname(char *name, int namelen);
#endif
#ifndef HAVE_INET_ATON
# include <sys/types.h>
# include <netinet/in.h>
# include <arpa/inet.h>
extern int inet_aton(const char *cp, struct in_addr * addr);
#endif
/*
* When there is no sigsetjmp, its functionality is provided by plain
* setjmp. Incidentally, nothing provides setjmp's functionality in
* that case.
*/
#ifndef HAVE_SIGSETJMP
# define sigjmp_buf jmp_buf
# define sigsetjmp(x,y) setjmp(x)
# define siglongjmp longjmp
#endif
#ifndef HAVE_STRCASECMP
extern int strcasecmp(char *s1, char *s2);
#endif
#ifndef HAVE_STRDUP
extern char *strdup(char const *);
#endif
#ifndef HAVE_RANDOM
extern long random(void);
#endif
#ifndef HAVE_SRANDOM
extern void srandom(unsigned int seed);
#endif
#if defined(HAVE_FDATASYNC) && !HAVE_DECL_FDATASYNC
extern int fdatasync(int fildes);
#endif
/* If strtoq() exists, rename it to the more standard strtoll() */
#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOLL) && defined(HAVE_STRTOQ)
# define strtoll strtoq
# define HAVE_STRTOLL 1
#endif
/* If strtouq() exists, rename it to the more standard strtoull() */
#if defined(HAVE_LONG_LONG_INT_64) && !defined(HAVE_STRTOULL) && defined(HAVE_STRTOUQ)
# define strtoull strtouq
# define HAVE_STRTOULL 1
#endif
#endif /* PG_CONFIG_H */