diff --git a/src/include/config.h.in b/src/include/config.h.in index de29abafdf..8de4d16e2e 100644 --- a/src/include/config.h.in +++ b/src/include/config.h.in @@ -3,12 +3,12 @@ * * config.h.in is processed by configure to produce config.h. * - * If you want to modify any of the tweakable settings in the first part + * If you want to modify any of the tweakable settings in Part 2 * of this file, you can do it in config.h.in before running configure, * or in config.h afterwards. Of course, if you edit config.h, then your * changes will be overwritten the next time you run configure. * - * $Id: config.h.in,v 1.120 2000/06/19 16:58:37 petere Exp $ + * $Id: config.h.in,v 1.121 2000/06/29 05:50:29 tgl Exp $ */ #ifndef CONFIG_H @@ -16,12 +16,75 @@ /* - * Default runtime limit on number of backend server processes per postmaster; + *------------------------------------------------------------------------ + * 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-multibyte + * or whatever. + *------------------------------------------------------------------------ + */ + +/* Set to 1 if you want LOCALE support (--enable-locale) */ +#undef USE_LOCALE + +/* Set to 1 if you want cyrillic recode (--enable-recode) */ +#undef CYR_RECODE + +/* Set to 1 if you want to use multibyte characters (--enable-multibyte) */ +#undef MULTIBYTE + +/* Set to 1 if you want ASSERT checking (--enable-cassert) */ +#undef USE_ASSERT_CHECKING + +/* Set to 1 to use syslog() to write postmaster log (--enable-syslog) */ +/* (CAUTION: large log entries confuse syslog on many platforms!) */ +#undef ENABLE_SYSLOG + +/* 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 + +/* Location of the Kerberos server's keytab file (--with-krb-srvtab=FILE) */ +#undef PG_KRB_SRVTAB + +/* + * 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. - * (Actual value is now set by configure script.) + * (--with-maxbackends=N) */ #undef DEF_MAXBACKENDS + +/* + *------------------------------------------------------------------------ + * 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. + *------------------------------------------------------------------------ + */ + /* * Hard limit on number of backend server processes per postmaster. * Increasing this costs about 32 bytes per process slot as of v 6.5. @@ -40,8 +103,11 @@ /* * Size of a disk block --- currently, this limits the size of a tuple. * You can set it bigger if you need bigger tuples. + * + * CAUTION: changing BLCKSZ requires an initdb. + * + * currently must be <= 32k bjm */ -/* currently must be <= 32k bjm */ #define BLCKSZ 8192 /* @@ -57,8 +123,7 @@ * best to err in the direction of a small limit. (Besides, a power-of-2 * value saves a few cycles in md.c.) * - * CAUTION: you had best do an initdb if you change either BLCKSZ or - * RELSEG_SIZE. + * CAUTION: changing RELSEG_SIZE requires an initdb. */ #define RELSEG_SIZE (0x40000000 / BLCKSZ) @@ -66,28 +131,20 @@ * 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 9 (btree index creation has a 9-argument function). + * 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. * - * There is no maximum value, though if you want to pass more than 32 - * arguments to a function, you will have to modify - * pgsql/src/backend/utils/fmgr/fmgr.c and add additional entries - * to the 'case' statement for the additional arguments. + * 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 16 #define FUNC_MAX_ARGS INDEX_MAX_KEYS -/* - * Enables debugging print statements in the date/time support routines. - * Particularly useful for porting to a new platform/OS combination. - */ -/* #define DATEDEBUG */ - -/* - * defining unsafe floats's will make float4 and float8 - * ops faster at the cost of safety, of course! - */ -/* #define UNSAFE_FLOATS */ - /* * Define this to make libpgtcl's "pg_result -assign" command process C-style * backslash sequences in returned tuple data and convert Postgres array @@ -134,29 +191,6 @@ */ #define FASTBUILD /* access/nbtree/nbtsort.c */ -/* - * TBL_FREE_CMD_MEMORY: free memory allocated for a user query inside - * transaction block after this query is done. - */ -#define TBL_FREE_CMD_MEMORY - - -#undef ENABLE_SYSLOG - -/* Debug #defines */ -/* #define IPORTAL_DEBUG */ -/* #define HEAPDEBUGALL */ -/* #define ISTRATDEBUG */ -/* #define FASTBUILD_DEBUG */ -/* #define ACLDEBUG */ -/* #define RTDEBUG */ -/* #define GISTDEBUG */ -/* #define OMIT_PARTIAL_INDEX */ -/* #define NO_BUFFERISVALID */ -/* #define NO_SECURITY */ -/* #define OLD_REWRITE */ -/* #define LOCK_DEBUG */ - /* * MAXPGPATH: standard size of a pathname buffer in Postgres (hence, * maximum usable pathname length is one less). @@ -174,33 +208,62 @@ */ #define DEFAULT_MAX_EXPR_DEPTH 10000 - /* *------------------------------------------------------------------------ - * Everything past here is set by the configure script. + * These hand-configurable symbols are for enabling debugging code, + * not for controlling user-visible features or resource limits. *------------------------------------------------------------------------ */ -/* Set to 1 if you want to USE_LOCALE */ -#undef USE_LOCALE +/* 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 -/* Set to 1 if you want CYR_RECODE (cyrillic recode) */ -#undef CYR_RECODE +/* Define this to force all parse and plan trees to be passed through + * copyObject(), to facilitate catching errors and omissions in copyObject(). + * 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 COPY_PARSE_PLAN_TREES +#endif -/* Set to 1 if you want to use multibyte characters */ -#undef MULTIBYTE +/* Enable debugging print statements in the date/time support routines. */ +/* #define DATEDEBUG */ -/* Set to 1 if you want to Enable ASSERT CHECKING */ -#undef USE_ASSERT_CHECKING +/* + * Other debug #defines (documentation, anyone?) + */ +/* #define IPORTAL_DEBUG */ +/* #define HEAPDEBUGALL */ +/* #define ISTRATDEBUG */ +/* #define FASTBUILD_DEBUG */ +/* #define ACLDEBUG */ +/* #define RTDEBUG */ +/* #define GISTDEBUG */ +/* #define OMIT_PARTIAL_INDEX */ +/* #define NO_SECURITY */ +/* #define LOCK_DEBUG */ -/* - * DEF_PGPORT is the TCP port number on which the Postmaster listens by - * default. This can be overriden by command options, environment variables, - * and the postconfig hook. (now set by configure script) - */ -#undef DEF_PGPORT -/* ... and once more as a string constant instead */ -#undef DEF_PGPORT_STR +/* + * defining unsafe floats's will make float4 and float8 + * ops faster at the cost of safety, of course! + */ +/* #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 @@ -298,23 +361,12 @@ /* Set to 1 if you have libreadline and it includes history functions */ #undef HAVE_HISTORY_IN_READLINE -/* - * Block of parameters for the ODBC code. - */ - /* Set to 1 if you have */ #undef HAVE_PWD_H /* Define if you have the header file. */ #undef HAVE_SYS_PARAM_H -/* Define if you have the dl library (-ldl). */ -#undef HAVE_LIBDL - -/* - * End parameters for ODBC code. - */ - /* Set to 1 if you gettimeofday(a,b) vs gettimeofday(a) */ #undef GETTIMEOFDAY_1ARG #ifdef GETTIMEOFDAY_1ARG @@ -336,8 +388,13 @@ /* Set to 1 if you have strerror() */ #undef HAVE_STRERROR +/* Set to 1 if you have isinf() */ +#undef HAVE_ISINF +#ifndef HAVE_ISINF +extern int isinf(double x); +#endif + /* - * Set to 1 if you have isinf(). * These are all related to port/isinf.c */ #undef HAVE_FPCLASS @@ -346,15 +403,10 @@ #undef HAVE_FP_CLASS_D #undef HAVE_CLASS -#undef HAVE_ISINF -#ifndef HAVE_ISINF -int isinf(double x); -#endif - /* Set to 1 if you have gethostname() */ #undef HAVE_GETHOSTNAME #ifndef HAVE_GETHOSTNAME -int gethostname(char *name, int namelen); +extern int gethostname(char *name, int namelen); #endif /* Set to 1 if struct tm has a tm_zone member */ @@ -380,7 +432,7 @@ int gethostname(char *name, int namelen); # endif # include # endif -extern int inet_aton(const char *cp, struct in_addr * addr); +extern int inet_aton(const char *cp, struct in_addr * addr); #endif /* Set to 1 if you have fcvt() */ @@ -427,7 +479,7 @@ extern int inet_aton(const char *cp, struct in_addr * addr); /* Set to 1 if you have sigprocmask() */ #undef HAVE_STRCASECMP #ifndef HAVE_STRCASECMP -extern int strcasecmp(char *s1, char *s2); +extern int strcasecmp(char *s1, char *s2); #endif /* Set to 1 if you have strtol() */ @@ -472,13 +524,6 @@ extern void srandom(unsigned int seed); /* Set to 1 if you have getopt_long() (GNU long options) */ #undef HAVE_GETOPT_LONG - -/* - * On architectures for which we have not implemented spinlocks (or - * cannot do so), we use System V semaphores. We also use them for - * long locks. For some reason union semun is never defined in the - * System V header files so we must do it ourselves. - */ /* Set to 1 if you have union semun */ #undef HAVE_UNION_SEMUN @@ -494,7 +539,8 @@ extern void srandom(unsigned int seed); /* Define this as the appropriate snprintf format for 64-bit ints, if any */ #undef INT64_FORMAT -/* These must be defined as the alignment requirement (NOT the size) of +/* + * 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. @@ -506,7 +552,7 @@ extern void srandom(unsigned int seed); #undef ALIGNOF_DOUBLE #undef MAXIMUM_ALIGNOF -/* Define as the type of the type of the 3rd argument to accept() */ +/* Define as the type of the 3rd argument to accept() */ #undef ACCEPT_TYPE_ARG3 /* Define if POSIX signal interface is available */ @@ -518,17 +564,15 @@ extern void srandom(unsigned int seed); /* Define if C++ compiler accepts "#include " */ #undef HAVE_CXX_STRING_HEADER -/* Define if you are building with Kerberos 4 support */ -#undef KRB4 -/* Define if you are building with Kerberos 5 support */ -#undef KRB5 - -/* The name of the Postgres service principal in Kerberos */ -#undef PG_KRB_SRVNAM - -/* The location of the Kerberos server's keytab file */ -#undef PG_KRB_SRVTAB +/* + *------------------------------------------------------------------------ + * Part 4: pull in system-specific declarations. + * + * This is still configure's responsibility, because it picks where + * the "os.h" symlink points... + *------------------------------------------------------------------------ + */ /* * Pull in OS-specific declarations (using link created by configure) @@ -538,15 +582,15 @@ extern void srandom(unsigned int seed); /* * The following is used as the arg list for signal handlers. Any ports - * that take something other than an int argument should change this in - * the port specific makefile. Note that variable names are required + * that take something other than an int argument should override this in + * the port-specific 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 +#ifndef SIGNAL_ARGS +#define SIGNAL_ARGS int postgres_signal_arg #endif