/* * 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 1.38 2003/01/25 05:19:47 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 */ /* * 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 , 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 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 */ #undef HAVE_CRYPT_H /* Set to 1 if you have */ #undef HAVE_DLD_H /* Set to 1 if you have */ #undef HAVE_ENDIAN_H /* Set to 1 if you have */ #undef HAVE_FP_CLASS_H /* Set to 1 if you have */ #undef HAVE_GETOPT_H /* Set to 1 if you have */ #undef HAVE_HISTORY_H /* Set to 1 if you have */ #undef HAVE_IEEEFP_H /* Set to 1 if you have */ #undef HAVE_NETINET_TCP_H /* Set to 1 if you have */ #undef HAVE_READLINE_H /* Set to 1 if you have */ #undef HAVE_READLINE_HISTORY_H /* Set to 1 if you have */ #undef HAVE_READLINE_READLINE_H /* Set to 1 if you have */ #undef HAVE_SYS_IPC_H /* Set to 1 if you have */ #undef HAVE_SYS_SELECT_H /* Set to 1 if you have */ #undef HAVE_SYS_UN_H /* Set to 1 if you have */ #undef HAVE_SYS_SEM_H /* Set to 1 if you have */ #undef HAVE_SYS_SHM_H /* Set to 1 if you have support for IPv6 */ #undef HAVE_IPV6 /* Set to 1 if you have */ #undef HAVE_KERNEL_OS_H /* Set to 1 if you have */ #undef HAVE_SUPPORTDEFS_H /* Set to 1 if you have */ #undef HAVE_KERNEL_IMAGE_H /* Set to 1 if you have */ #undef HAVE_TERMIOS_H /* Set to 1 if you have */ #undef HAVE_UTIME_H /* Set to 1 if you have */ #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 */ #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 you have utime() */ #undef HAVE_UTIME /* Define if you have utimes() */ #undef HAVE_UTIMES /* 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 # include # include 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 */