1 dnl Process this file with autoconf to produce a configure script.
4 dnl Developers, please strive to achieve this order:
6 dnl 0. Initialization and options processing
12 dnl 6. Compiler characteristics
13 dnl 7. Functions, global variables
14 dnl 8. System services
16 dnl Read the Autoconf manual for details.
18 m4_pattern_forbid(^PGAC_)dnl to catch undefined macros
20 AC_INIT([PostgreSQL], [11devel], [pgsql-bugs@postgresql.org])
22 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required.
23 Untested combinations of 'autoconf' and PostgreSQL versions are not
24 recommended. You can remove the check from 'configure.in' but it is then
25 your responsibility whether the result works or not.])])
26 AC_COPYRIGHT([Copyright (c) 1996-2018, PostgreSQL Global Development Group])
27 AC_CONFIG_SRCDIR([src/backend/access/common/heaptuple.c])
28 AC_CONFIG_AUX_DIR(config)
29 AC_PREFIX_DEFAULT(/usr/local/pgsql)
30 AC_SUBST(configure_args, [$ac_configure_args])
32 [PG_MAJORVERSION=`expr "$PACKAGE_VERSION" : '\([0-9][0-9]*\)'`]
33 AC_SUBST(PG_MAJORVERSION)
34 AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major version as a string])
36 PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version],
37 [PG_VERSION="$PACKAGE_VERSION$withval"],
38 [PG_VERSION="$PACKAGE_VERSION"])
39 AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string])
44 AC_MSG_CHECKING([which template to use])
46 PGAC_ARG_REQ(with, template, [NAME], [override operating system template],
49 list) echo; ls "$srcdir/src/template"; exit;;
50 *) if test -f "$srcdir/src/template/$with_template" ; then
53 AC_MSG_ERROR(['$withval' is not a valid template name. Use 'list' for a list.])
58 # --with-template not given
62 cygwin*) template=cygwin ;;
63 darwin*) template=darwin ;;
64 dragonfly*) template=netbsd ;;
65 freebsd*) template=freebsd ;;
66 hpux*) template=hpux ;;
67 linux*|gnu*|k*bsd*-gnu)
69 mingw*) template=win32 ;;
70 netbsd*) template=netbsd ;;
71 openbsd*) template=openbsd ;;
72 solaris*) template=solaris ;;
75 if test x"$template" = x"" ; then
77 *******************************************************************
78 PostgreSQL has apparently not been ported to your platform yet.
79 To try a manual configuration, look into the src/template directory
80 for a similar platform and use the '--with-template=' option.
82 Please also contact <pgsql-bugs@postgresql.org> to see about
83 rectifying this. Include the above 'checking host system type...'
85 *******************************************************************
91 AC_MSG_RESULT([$template])
96 # Initialize default assumption that we do not need separate assembly code
97 # for TAS (test-and-set). This can be overridden by the template file
105 ## Command line options
109 # Add non-standard directories to the include path
111 PGAC_ARG_REQ(with, includes, [DIRS], [look for additional header files in DIRS])
115 # Add non-standard directories to the library search path
117 PGAC_ARG_REQ(with, libraries, [DIRS], [look for additional libraries in DIRS],
118 [LIBRARY_DIRS=$withval])
120 PGAC_ARG_REQ(with, libs, [DIRS], [alternative spelling of --with-libraries],
121 [LIBRARY_DIRS=$withval])
125 # 64-bit integer date/time storage is now the only option, but to avoid
126 # unnecessary breakage of build scripts, continue to accept an explicit
127 # "--enable-integer-datetimes" switch.
129 PGAC_ARG_BOOL(enable, integer-datetimes, yes, [obsolete option, no longer supported],
131 [AC_MSG_ERROR([--disable-integer-datetimes is no longer supported])])
137 AC_MSG_CHECKING([whether NLS is wanted])
138 PGAC_ARG_OPTARG(enable, nls,
139 [LANGUAGES], [enable Native Language Support],
141 [WANTED_LANGUAGES=$enableval],
142 [AC_DEFINE(ENABLE_NLS, 1,
143 [Define to 1 if you want National Language Support. (--enable-nls)])])
144 AC_MSG_RESULT([$enable_nls])
146 AC_SUBST(WANTED_LANGUAGES)
149 # Default port number (--with-pgport), default 5432
151 AC_MSG_CHECKING([for default port number])
152 PGAC_ARG_REQ(with, pgport, [PORTNUM], [set default port number [5432]],
153 [default_port=$withval],
155 AC_MSG_RESULT([$default_port])
156 # Need both of these because some places want an integer and some a string
157 AC_DEFINE_UNQUOTED(DEF_PGPORT, ${default_port},
158 [Define to the default TCP port number on which the server listens and
159 to which clients will try to connect. This can be overridden at run-time,
160 but it's convenient if your clients have the right default compiled in.
161 (--with-pgport=PORTNUM)])
162 AC_DEFINE_UNQUOTED(DEF_PGPORT_STR, "${default_port}",
163 [Define to the default TCP port number as a string constant.])
164 AC_SUBST(default_port)
166 # It's worth validating port; you can get very confusing errors otherwise
167 if test x"$default_port" = x""; then
168 AC_MSG_ERROR([invalid --with-pgport specification: empty string])
169 elif test ! x`echo "$default_port" | sed -e 's/[[0-9]]*//'` = x""; then
170 AC_MSG_ERROR([invalid --with-pgport specification: must be a number])
171 elif test ! x`echo "$default_port" | sed -e 's/^0.//'` = x"$default_port"; then
172 AC_MSG_ERROR([invalid --with-pgport specification: must not have leading 0])
173 elif test "$default_port" -lt "1" -o "$default_port" -gt "65535"; then
174 AC_MSG_ERROR([invalid --with-pgport specification: must be between 1 and 65535])
178 # '-rpath'-like feature can be disabled
180 PGAC_ARG_BOOL(enable, rpath, yes,
181 [do not embed shared library search path in executables])
182 AC_SUBST(enable_rpath)
187 PGAC_ARG_BOOL(enable, spinlocks, yes,
188 [do not use spinlocks])
193 PGAC_ARG_BOOL(enable, atomics, yes,
194 [do not use atomic operations])
197 # Random number generation
199 PGAC_ARG_BOOL(enable, strong-random, yes,
200 [do not use a strong random number source])
201 AC_SUBST(enable_strong_random)
204 # --enable-debug adds -g to compiler flags
206 PGAC_ARG_BOOL(enable, debug, no,
207 [build with debugging symbols (-g)])
208 AC_SUBST(enable_debug)
211 # --enable-profiling enables gcc profiling
213 PGAC_ARG_BOOL(enable, profiling, no,
214 [build with profiling enabled ])
217 # --enable-coverage enables generation of code coverage metrics with gcov
219 PGAC_ARG_BOOL(enable, coverage, no,
220 [build with coverage testing instrumentation],
221 [PGAC_PATH_PROGS(GCOV, gcov)
222 if test -z "$GCOV"; then
223 AC_MSG_ERROR([gcov not found])
225 PGAC_PATH_PROGS(LCOV, lcov)
226 if test -z "$LCOV"; then
227 AC_MSG_ERROR([lcov not found])
229 PGAC_PATH_PROGS(GENHTML, genhtml)
230 if test -z "$GENHTML"; then
231 AC_MSG_ERROR([genhtml not found])
233 AC_SUBST(enable_coverage)
238 PGAC_ARG_BOOL(enable, dtrace, no,
239 [build with DTrace support],
240 [PGAC_PATH_PROGS(DTRACE, dtrace)
241 if test -z "$DTRACE"; then
242 AC_MSG_ERROR([dtrace not found])
244 AC_SUBST(DTRACEFLAGS)])
245 AC_SUBST(enable_dtrace)
250 PGAC_ARG_BOOL(enable, tap-tests, no,
251 [enable TAP tests (requires Perl and IPC::Run)])
252 AC_SUBST(enable_tap_tests)
257 AC_MSG_CHECKING([for block size])
258 PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]],
259 [blocksize=$withval],
268 *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.])
270 AC_MSG_RESULT([${blocksize}kB])
272 AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [
273 Size of a disk block --- this also limits the size of a tuple. You
274 can set it bigger if you need bigger tuples (although TOAST should
275 reduce the need to have large tuples, since fields can be spread
276 across multiple tuples).
278 BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ
279 is currently 2^15 (32768). This is determined by the 15-bit widths
280 of the lp_off and lp_len fields in ItemIdData (see
281 include/storage/itemid.h).
283 Changing BLCKSZ requires an initdb.
287 # Relation segment size
289 AC_MSG_CHECKING([for segment size])
290 PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]],
293 # this expression is set up to avoid unnecessary integer overflow
294 # blocksize is already guaranteed to be a factor of 1024
295 RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024`
296 test $? -eq 0 || exit 1
297 AC_MSG_RESULT([${segsize}GB])
299 AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [
300 RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
301 Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
302 relations bigger than that are divided into multiple files.
304 RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size.
305 This is often 2 GB or 4GB in a 32-bit operating system, unless you
306 have large file support enabled. By default, we make the limit 1 GB
307 to avoid any possible integer-overflow problems within the OS.
308 A limit smaller than necessary only means we divide a large
309 relation into more chunks than necessary, so it seems best to err
310 in the direction of a small limit.
312 A power-of-2 value is recommended to save a few cycles in md.c,
313 but is not absolutely required.
315 Changing RELSEG_SIZE requires an initdb.
321 AC_MSG_CHECKING([for WAL block size])
322 PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]],
323 [wal_blocksize=$withval],
325 case ${wal_blocksize} in
326 1) XLOG_BLCKSZ=1024;;
327 2) XLOG_BLCKSZ=2048;;
328 4) XLOG_BLCKSZ=4096;;
329 8) XLOG_BLCKSZ=8192;;
330 16) XLOG_BLCKSZ=16384;;
331 32) XLOG_BLCKSZ=32768;;
332 64) XLOG_BLCKSZ=65536;;
333 *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.])
335 AC_MSG_RESULT([${wal_blocksize}kB])
337 AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [
338 Size of a WAL file block. This need have no particular relation to BLCKSZ.
339 XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O,
340 XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O
341 buffers, else direct I/O may fail.
343 Changing XLOG_BLCKSZ requires an initdb.
350 # For historical reasons you can also use --with-CC to specify the C compiler
351 # to use, although the standard way to do this is to set the CC environment
353 PGAC_ARG_REQ(with, CC, [CMD], [set compiler (deprecated)], [CC=$with_CC])
356 aix) pgac_cc_list="gcc xlc";;
357 *) pgac_cc_list="gcc cc";;
360 AC_PROG_CC([$pgac_cc_list])
362 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
363 # but has idiosyncrasies of its own. We assume icc will define
364 # __INTEL_COMPILER regardless of CFLAGS.
365 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER
367 @%:@endif])], [ICC=yes], [ICC=no])
369 # Check if it's Sun Studio compiler. We assume that
370 # __SUNPRO_C will be defined for Sun Studio compilers
371 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C
373 @%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
375 AC_SUBST(SUN_STUDIO_CC)
382 . "$srcdir/src/template/$template" || exit
384 # CFLAGS are selected so:
385 # If the user specifies something in the environment, that is used.
386 # else: If the template file set something, that is used.
387 # else: If coverage was enabled, don't set anything.
388 # else: If the compiler is GCC, then we use -O2.
389 # else: If the compiler is something else, then we use -O, unless debugging.
391 if test "$ac_env_CFLAGS_set" = set; then
392 CFLAGS=$ac_env_CFLAGS_value
393 elif test "${CFLAGS+set}" = set; then
394 : # (keep what template set)
395 elif test "$enable_coverage" = yes; then
396 : # no optimization by default
397 elif test "$GCC" = yes; then
400 # if the user selected debug mode, don't use -O
401 if test "$enable_debug" != yes; then
406 # CFLAGS we determined above will be added back at the end
410 # set CFLAGS_VECTOR from the environment, if available
411 if test "$ac_env_CFLAGS_VECTOR_set" = set; then
412 CFLAGS_VECTOR=$ac_env_CFLAGS_VECTOR_value
415 # Some versions of GCC support some additional useful warning flags.
416 # Check whether they are supported, and add them to CFLAGS if so.
417 # ICC pretends to be GCC but it's lying; it doesn't support these flags,
418 # but has its own. Also check other compiler-specific flags here.
420 if test "$GCC" = yes -a "$ICC" = no; then
421 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith"
422 # These work in some but not all gcc versions
423 PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
424 PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
425 PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
426 # This was included in -Wall/-Wformat in older GCC versions
427 PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
428 # Disable strict-aliasing rules; needed for gcc 3.3+
429 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
430 # Disable optimizations that assume no overflow; needed for gcc 4.3+
431 PGAC_PROG_CC_CFLAGS_OPT([-fwrapv])
432 # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+
433 PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard])
434 # Optimization flags for specific files that benefit from vectorization
435 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-funroll-loops])
436 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-ftree-vectorize])
437 # We want to suppress clang's unhelpful unused-command-line-argument warnings
438 # but gcc won't complain about unrecognized -Wno-foo switches, so we have to
439 # test for the positive form and if that works, add the negative form
440 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument])
441 if test -n "$NOT_THE_CFLAGS"; then
442 CFLAGS="$CFLAGS -Wno-unused-command-line-argument"
444 elif test "$ICC" = yes; then
445 # Intel's compiler has a bug/misoptimization in checking for
446 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
447 PGAC_PROG_CC_CFLAGS_OPT([-mp1])
448 # Make sure strict aliasing is off (though this is said to be the default)
449 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
450 elif test "$PORTNAME" = "aix"; then
451 # AIX's xlc has to have strict aliasing turned off too
452 PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
453 PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
454 elif test "$PORTNAME" = "hpux"; then
455 # On some versions of HP-UX, libm functions do not set errno by default.
456 # Fix that by using +Olibmerrno if the compiler recognizes it.
457 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno])
460 AC_SUBST(CFLAGS_VECTOR, $CFLAGS_VECTOR)
462 # supply -g if --enable-debug
463 if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then
467 # enable code coverage if --enable-coverage
468 if test "$enable_coverage" = yes; then
469 if test "$GCC" = yes; then
470 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
472 AC_MSG_ERROR([--enable-coverage is supported only when using GCC])
476 # enable profiling if --enable-profiling
477 if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then
478 if test "$GCC" = yes; then
479 AC_DEFINE([PROFILE_PID_DIR], 1,
480 [Define to 1 to allow profiling output to be saved separately for each process.])
481 CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS"
483 AC_MSG_ERROR([--enable-profiling is supported only when using GCC])
487 # We already have this in Makefile.win32, but configure needs it too
488 if test "$PORTNAME" = "win32"; then
489 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND"
492 # Now that we're done automatically adding stuff to CFLAGS, put back the
493 # user-specified flags (if any) at the end. This lets users override
494 # the automatic additions.
495 CFLAGS="$CFLAGS $user_CFLAGS"
497 # Check if the compiler still works with the final flag settings
498 AC_MSG_CHECKING([whether the C compiler still works])
499 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
500 [AC_MSG_RESULT(yes)],
502 AC_MSG_ERROR([cannot proceed])])
504 # Defend against gcc -ffast-math
505 if test "$GCC" = yes; then
506 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
508 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
516 # Set up TAS assembly code if needed; the template file has now had its
517 # chance to request this.
519 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
521 if test "$need_tas" = yes ; then
530 # Automatic dependency tracking
532 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
538 # Enable assert checks
540 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
541 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
542 [Define to 1 to build with assertion checks. (--enable-cassert)])])
546 # Include directories
549 IFS="${IFS}${PATH_SEPARATOR}"
550 # SRCH_INC comes from the template file
551 for dir in $with_includes $SRCH_INC; do
552 if test -d "$dir"; then
553 INCLUDES="$INCLUDES -I$dir"
555 AC_MSG_WARN([*** Include directory $dir does not exist.])
563 # Library directories
566 IFS="${IFS}${PATH_SEPARATOR}"
567 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
568 for dir in $LIBRARY_DIRS $SRCH_LIB; do
569 if test -d "$dir"; then
570 LIBDIRS="$LIBDIRS -L$dir"
572 AC_MSG_WARN([*** Library directory $dir does not exist.])
578 # Enable thread-safe client libraries
580 AC_MSG_CHECKING([allow thread-safe client libraries])
581 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
582 if test "$enable_thread_safety" = yes; then
583 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
584 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
586 AC_MSG_RESULT([$enable_thread_safety])
587 AC_SUBST(enable_thread_safety)
592 AC_MSG_CHECKING([whether to build with ICU support])
593 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
594 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
595 AC_MSG_RESULT([$with_icu])
598 if test "$with_icu" = yes; then
599 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
603 # Optionally build Tcl modules (PL/Tcl)
605 AC_MSG_CHECKING([whether to build with Tcl])
606 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
607 AC_MSG_RESULT([$with_tcl])
610 # We see if the path to the Tcl/Tk configuration scripts is specified.
611 # This will override the use of tclsh to find the paths to search.
613 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
616 # Optionally build Perl modules (PL/Perl)
618 AC_MSG_CHECKING([whether to build Perl modules])
619 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
620 AC_MSG_RESULT([$with_perl])
624 # Optionally build Python modules (PL/Python)
626 AC_MSG_CHECKING([whether to build Python modules])
627 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
628 AC_MSG_RESULT([$with_python])
629 AC_SUBST(with_python)
634 AC_MSG_CHECKING([whether to build with GSSAPI support])
635 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
637 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
638 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
640 AC_MSG_RESULT([$with_gssapi])
647 # Kerberos configuration parameters
649 PGAC_ARG_REQ(with, krb-srvnam,
650 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
652 [with_krb_srvnam="postgres"])
653 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
654 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
660 AC_MSG_CHECKING([whether to build with PAM support])
661 PGAC_ARG_BOOL(with, pam, no,
662 [build with PAM support],
663 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
664 AC_MSG_RESULT([$with_pam])
670 AC_MSG_CHECKING([whether to build with BSD Authentication support])
671 PGAC_ARG_BOOL(with, bsd-auth, no,
672 [build with BSD Authentication support],
673 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
674 AC_MSG_RESULT([$with_bsd_auth])
680 AC_MSG_CHECKING([whether to build with LDAP support])
681 PGAC_ARG_BOOL(with, ldap, no,
682 [build with LDAP support],
683 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
684 AC_MSG_RESULT([$with_ldap])
691 AC_MSG_CHECKING([whether to build with Bonjour support])
692 PGAC_ARG_BOOL(with, bonjour, no,
693 [build with Bonjour support],
694 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
695 AC_MSG_RESULT([$with_bonjour])
701 AC_MSG_CHECKING([whether to build with OpenSSL support])
702 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
703 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
704 AC_MSG_RESULT([$with_openssl])
705 AC_SUBST(with_openssl)
710 AC_MSG_CHECKING([whether to build with SELinux support])
711 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
712 AC_SUBST(with_selinux)
713 AC_MSG_RESULT([$with_selinux])
718 AC_MSG_CHECKING([whether to build with systemd support])
719 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
720 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
721 AC_SUBST(with_systemd)
722 AC_MSG_RESULT([$with_systemd])
727 PGAC_ARG_BOOL(with, readline, yes,
728 [do not use GNU Readline nor BSD Libedit for editing])
729 # readline on MinGW has problems with backslashes in psql and other bugs.
730 # This is particularly a problem with non-US code pages.
731 # Therefore disable its use until we understand the cause. 2004-07-20
732 if test "$PORTNAME" = "win32"; then
733 if test "$with_readline" = yes; then
734 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
743 PGAC_ARG_BOOL(with, libedit-preferred, no,
744 [prefer BSD Libedit over GNU Readline])
750 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
751 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
752 # UUID library. More than one of these might be present on a given platform,
753 # so we make the user say which one she wants.
755 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
756 if test x"$with_uuid" = x"" ; then
759 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
760 if test "$with_ossp_uuid" = yes ; then
764 if test "$with_uuid" = bsd ; then
765 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
766 UUID_EXTRA_OBJS="md5.o sha1.o"
767 elif test "$with_uuid" = e2fs ; then
768 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
769 UUID_EXTRA_OBJS="md5.o sha1.o"
770 elif test "$with_uuid" = ossp ; then
771 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
773 elif test "$with_uuid" = no ; then
776 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
779 AC_SUBST(UUID_EXTRA_OBJS)
785 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
786 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
788 if test "$with_libxml" = yes ; then
789 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
790 if test -n "$XML2_CONFIG"; then
791 for pgac_option in `$XML2_CONFIG --cflags`; do
793 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
796 for pgac_option in `$XML2_CONFIG --libs`; do
798 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
804 AC_SUBST(with_libxml)
809 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
810 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
813 AC_SUBST(with_libxslt)
818 PGAC_ARG_REQ(with, system-tzdata,
819 [DIR], [use system time zone data in DIR])
820 AC_SUBST(with_system_tzdata)
825 PGAC_ARG_BOOL(with, zlib, yes,
833 # Assume system is ELF if it predefines __ELF__ as 1,
834 # otherwise believe host_os based default.
836 freebsd1*|freebsd2*) elf=no;;
837 freebsd3*|freebsd4*) elf=yes;;
846 [if test "X$elf" = "Xyes" ; then
857 CPPFLAGS="$CPPFLAGS $INCLUDES"
858 LDFLAGS="$LDFLAGS $LIBDIRS"
860 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
861 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
865 AC_SUBST(with_gnu_ld)
868 AC_CHECK_TOOL(AR, ar, ar)
869 if test "$PORTNAME" = "win32"; then
870 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
871 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
872 AC_CHECK_TOOL(WINDRES, windres, windres)
876 # When Autoconf chooses install-sh as install program it tries to generate
877 # a relative path to it in each makefile where it substitutes it. This clashes
878 # with our Makefile.global concept. This workaround helps.
880 *install-sh*) install_bin='';;
881 *) install_bin=$INSTALL;;
883 AC_SUBST(install_bin)
885 PGAC_PATH_PROGS(TAR, tar)
889 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
890 # a relative path to it in each makefile where it substitutes it. This clashes
891 # with our Makefile.global concept. This workaround helps.
893 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
900 if test "$with_perl" = yes; then
901 if test -z "$PERL"; then
902 AC_MSG_ERROR([Perl not found])
904 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
905 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
906 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
907 You might have to rebuild your Perl installation. Refer to the
908 documentation for details. Use --without-perl to disable building
911 PGAC_CHECK_PERL_EMBED_CCFLAGS
912 PGAC_CHECK_PERL_EMBED_LDFLAGS
915 if test "$with_python" = yes; then
917 PGAC_CHECK_PYTHON_EMBED_SETUP
920 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
921 PGAC_PATH_PROGS(ZIC, zic)
922 if test -z "$ZIC"; then
924 When cross-compiling, either use the option --with-system-tzdata to use
925 existing time-zone data, or set the environment variable ZIC to a zic
926 program to use during the build.])
933 # For each platform, we need to know about any special compile and link
934 # libraries, and whether the normal C function names are thread-safe.
935 # See the comment at the top of src/port/thread.c for more information.
936 # WIN32 doesn't need the pthread tests; it always uses threads
938 # These tests are run before the library-tests, because linking with the
939 # other libraries can pull in the pthread functions as a side-effect. We
940 # want to use the -pthread or similar flags directly, and not rely on
941 # the side-effects of linking with some other library.
943 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
944 # invocation below is the first one in the script, and autoconf generates
945 # additional code for that, which must not be inside the if-block. AS_IF
946 # knows how to do that.
947 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
949 AX_PTHREAD # set thread flags
951 # Some platforms use these, so just define them. They can't hurt if they
952 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
953 # enables 5-arg getpwuid_r, among other things.
954 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
956 # Check for *_r functions
959 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
960 LIBS="$LIBS $PTHREAD_LIBS"
962 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
963 pthread.h not found; use --disable-thread-safety to disable thread safety])])
965 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
967 # Do test here with the proper thread flags
968 PGAC_FUNC_STRERROR_R_INT
974 # do not use values from template file
979 AC_SUBST(PTHREAD_CFLAGS)
980 AC_SUBST(PTHREAD_LIBS)
986 ## Most libraries are included only if they demonstrably provide a function
987 ## we need, but libm is an exception: always include it, because there are
988 ## too many compilers that play cute optimization games that will break
989 ## probes for standard functions such as pow().
992 AC_CHECK_LIB(m, main)
993 AC_SEARCH_LIBS(setproctitle, util)
994 AC_SEARCH_LIBS(dlopen, dl)
995 AC_SEARCH_LIBS(socket, [socket ws2_32])
996 AC_SEARCH_LIBS(shl_load, dld)
997 # We only use libld in port/dynloader/aix.c
1000 AC_SEARCH_LIBS(ldopen, ld)
1003 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1004 AC_SEARCH_LIBS(crypt, crypt)
1005 AC_SEARCH_LIBS(shm_open, rt)
1006 AC_SEARCH_LIBS(shm_unlink, rt)
1007 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1009 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1010 # Required for thread_test.c on Solaris
1011 AC_SEARCH_LIBS(sched_yield, rt)
1012 # Required for thread_test.c on Solaris 2.5:
1013 # Other ports use it too (HP-UX) so test unconditionally
1014 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1016 AC_SEARCH_LIBS(shmget, cygipc)
1018 if test "$with_readline" = yes; then
1020 if test x"$pgac_cv_check_readline" = x"no"; then
1021 AC_MSG_ERROR([readline library not found
1022 If you have readline already installed, see config.log for details on the
1023 failure. It is possible the compiler isn't looking in the proper directory.
1024 Use --without-readline to disable readline support.])
1028 if test "$with_zlib" = yes; then
1029 AC_CHECK_LIB(z, inflate, [],
1030 [AC_MSG_ERROR([zlib library not found
1031 If you have zlib already installed, see config.log for details on the
1032 failure. It is possible the compiler isn't looking in the proper directory.
1033 Use --without-zlib to disable zlib support.])])
1036 if test "$enable_spinlocks" = yes; then
1037 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1040 *** Not using spinlocks will cause poor performance.])
1043 if test "$enable_atomics" = yes; then
1044 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1047 *** Not using atomic operations will cause poor performance.])
1050 if test "$with_gssapi" = yes ; then
1051 if test "$PORTNAME" != "win32"; then
1052 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1053 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1055 LIBS="$LIBS -lgssapi32"
1059 if test "$with_openssl" = yes ; then
1061 if test "$PORTNAME" != "win32"; then
1062 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1063 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1065 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1066 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1068 AC_CHECK_FUNCS([SSL_get_current_compression X509_get_signature_nid])
1069 # Functions introduced in OpenSSL 1.1.0. We used to check for
1070 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1071 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1072 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1074 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1075 # OpenSSL versions before 1.1.0 required setting callback functions, for
1076 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1077 # function was removed.
1078 AC_CHECK_FUNCS([CRYPTO_lock])
1081 if test "$with_pam" = yes ; then
1082 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1085 if test "$with_libxml" = yes ; then
1086 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1089 if test "$with_libxslt" = yes ; then
1090 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1093 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1094 if test "$with_ldap" = yes ; then
1096 if test "$PORTNAME" != "win32"; then
1097 AC_CHECK_LIB(ldap, ldap_bind, [],
1098 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1100 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1101 if test "$enable_thread_safety" = yes; then
1102 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1103 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1104 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1105 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1106 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1108 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1110 AC_CHECK_FUNCS([ldap_initialize])
1112 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1113 LDAP_LIBS_FE="-lwldap32"
1114 LDAP_LIBS_BE="-lwldap32"
1118 AC_SUBST(LDAP_LIBS_FE)
1119 AC_SUBST(LDAP_LIBS_BE)
1121 # for contrib/sepgsql
1122 if test "$with_selinux" = yes; then
1123 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1124 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1127 # for contrib/uuid-ossp
1128 if test "$with_uuid" = bsd ; then
1129 # On BSD, the UUID functions are in libc
1130 AC_CHECK_FUNC(uuid_to_string,
1132 [AC_MSG_ERROR([BSD UUID functions are not present])])
1133 elif test "$with_uuid" = e2fs ; then
1134 # On macOS, the UUID functions are in libc
1135 AC_CHECK_FUNC(uuid_generate,
1137 [AC_CHECK_LIB(uuid, uuid_generate,
1138 [UUID_LIBS="-luuid"],
1139 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1140 elif test "$with_uuid" = ossp ; then
1141 AC_CHECK_LIB(ossp-uuid, uuid_export,
1142 [UUID_LIBS="-lossp-uuid"],
1143 [AC_CHECK_LIB(uuid, uuid_export,
1144 [UUID_LIBS="-luuid"],
1145 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1154 AC_CHECK_HEADERS([atomic.h crypt.h dld.h fp_class.h getopt.h ieeefp.h ifaddrs.h langinfo.h mbarrier.h poll.h sys/epoll.h sys/ipc.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/sockio.h sys/tas.h sys/un.h termios.h ucred.h utime.h wchar.h wctype.h])
1156 # On BSD, test for net/if.h will fail unless sys/socket.h
1157 # is included first.
1158 AC_CHECK_HEADERS(net/if.h, [], [],
1159 [AC_INCLUDES_DEFAULT
1160 #include <sys/socket.h>
1163 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1164 # is included first.
1165 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1166 [AC_INCLUDES_DEFAULT
1167 #include <sys/param.h>
1170 # At least on IRIX, test for netinet/tcp.h will fail unless
1171 # netinet/in.h is included first.
1172 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1173 [AC_INCLUDES_DEFAULT
1174 #include <netinet/in.h>
1177 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1178 AC_CHECK_HEADERS(readline/readline.h, [],
1179 [AC_CHECK_HEADERS(readline.h, [],
1180 [AC_MSG_ERROR([readline header not found
1181 If you have readline already installed, see config.log for details on the
1182 failure. It is possible the compiler isn't looking in the proper directory.
1183 Use --without-readline to disable readline support.])])])
1184 AC_CHECK_HEADERS(readline/history.h, [],
1185 [AC_CHECK_HEADERS(history.h, [],
1186 [AC_MSG_ERROR([history header not found
1187 If you have readline already installed, see config.log for details on the
1188 failure. It is possible the compiler isn't looking in the proper directory.
1189 Use --without-readline to disable readline support.])])])
1192 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1193 # Some installations of libedit usurp /usr/include/readline/, which seems
1194 # bad practice, since in combined installations readline will have its headers
1195 # there. We might have to resort to AC_EGREP checks to make sure we found
1196 # the proper header...
1197 AC_CHECK_HEADERS(editline/readline.h, [],
1198 [AC_CHECK_HEADERS(readline.h, [],
1199 [AC_CHECK_HEADERS(readline/readline.h, [],
1200 [AC_MSG_ERROR([readline header not found
1201 If you have libedit already installed, see config.log for details on the
1202 failure. It is possible the compiler isn't looking in the proper directory.
1203 Use --without-readline to disable libedit support.])])])])
1204 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1205 # not be there at all. Hence, don't complain if not found. We must check
1206 # though, since in yet other versions it is an independent header.
1207 AC_CHECK_HEADERS(editline/history.h, [],
1208 [AC_CHECK_HEADERS(history.h, [],
1209 [AC_CHECK_HEADERS(readline/history.h)])])
1212 if test "$with_zlib" = yes; then
1213 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1214 If you have zlib already installed, see config.log for details on the
1215 failure. It is possible the compiler isn't looking in the proper directory.
1216 Use --without-zlib to disable zlib support.])])
1219 if test "$with_gssapi" = yes ; then
1220 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1221 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1224 if test "$with_openssl" = yes ; then
1225 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1226 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1229 if test "$with_pam" = yes ; then
1230 AC_CHECK_HEADERS(security/pam_appl.h, [],
1231 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1232 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1235 if test "$with_bsd_auth" = yes ; then
1236 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1239 if test "$with_systemd" = yes ; then
1240 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1243 if test "$with_libxml" = yes ; then
1244 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1247 if test "$with_libxslt" = yes ; then
1248 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1251 if test "$with_ldap" = yes ; then
1252 if test "$PORTNAME" != "win32"; then
1253 AC_CHECK_HEADERS(ldap.h, [],
1254 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1257 AC_CHECK_HEADERS(winldap.h, [],
1258 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1259 [AC_INCLUDES_DEFAULT
1260 #include <windows.h>
1265 if test "$with_bonjour" = yes ; then
1266 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1267 dnl At some point we might add something like
1268 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1269 dnl but right now, what that would mainly accomplish is to encourage
1270 dnl people to try to use the avahi implementation, which does not work.
1271 dnl If you want to use Apple's own Bonjour code on another platform,
1272 dnl just add -ldns_sd to LIBS manually.
1275 # for contrib/uuid-ossp
1276 if test "$with_uuid" = bsd ; then
1277 AC_CHECK_HEADERS(uuid.h,
1278 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1279 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1280 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1281 elif test "$with_uuid" = e2fs ; then
1282 AC_CHECK_HEADERS(uuid/uuid.h,
1283 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1284 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1285 [AC_CHECK_HEADERS(uuid.h,
1286 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1287 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1288 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1289 elif test "$with_uuid" = ossp ; then
1290 AC_CHECK_HEADERS(ossp/uuid.h,
1291 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1292 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1293 [AC_CHECK_HEADERS(uuid.h,
1294 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1295 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1296 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1299 if test "$PORTNAME" = "win32" ; then
1300 AC_CHECK_HEADERS(crtdefs.h)
1304 ## Types, structures, compiler characteristics
1307 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1310 PGAC_PRINTF_ARCHETYPE
1311 AC_C_FLEXIBLE_ARRAY_MEMBER
1313 PGAC_C_FUNCNAME_SUPPORT
1314 PGAC_C_STATIC_ASSERT
1316 PGAC_C_TYPES_COMPATIBLE
1317 PGAC_C_BUILTIN_BSWAP16
1318 PGAC_C_BUILTIN_BSWAP32
1319 PGAC_C_BUILTIN_BSWAP64
1320 PGAC_C_BUILTIN_CONSTANT_P
1321 PGAC_C_BUILTIN_UNREACHABLE
1322 PGAC_C_COMPUTED_GOTO
1324 PGAC_STRUCT_TIMEZONE
1326 PGAC_STRUCT_SOCKADDR_UN
1327 PGAC_STRUCT_SOCKADDR_STORAGE
1328 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1329 PGAC_STRUCT_ADDRINFO
1332 AC_TYPE_LONG_LONG_INT
1336 # MSVC doesn't cope well with defining restrict to __restrict, the
1337 # spelling it understands, because it conflicts with
1338 # __declspec(restrict). Therefore we define pg_restrict to the
1339 # appropriate definition, which presumably won't conflict.
1341 # Allow platforms with buggy compilers to force restrict to not be
1342 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1345 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1348 pg_restrict="$ac_cv_c_restrict"
1350 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1351 [Define to keyword to use for C99 restrict support, or to nothing if not
1354 AC_CHECK_TYPES([struct cmsgcred], [], [],
1355 [#include <sys/socket.h>
1356 #include <sys/param.h>
1357 #ifdef HAVE_SYS_UCRED_H
1358 #include <sys/ucred.h>
1361 AC_CHECK_TYPES([struct option], [], [],
1362 [#ifdef HAVE_GETOPT_H
1366 if test "$with_zlib" = yes; then
1367 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1368 # did not). While we could work around the lack of z_streamp, it
1369 # seems unwise to encourage people to use such old zlib versions...
1370 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1371 Use --without-zlib to disable zlib support.])],
1372 [#include <zlib.h>])
1375 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1378 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1379 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1380 [int a = 0; int *p = &a; int r;
1381 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1382 [pgac_cv_have_ppc_mutex_hint=yes],
1383 [pgac_cv_have_ppc_mutex_hint=no])
1384 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1385 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1386 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1391 # Check largefile support. You might think this is a system service not a
1392 # compiler characteristic, but you'd be wrong. We must check this before
1393 # probing existence of related functions such as fseeko, since the largefile
1394 # defines can affect what is generated for that.
1395 if test "$PORTNAME" != "win32"; then
1397 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1398 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1399 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1400 dnl versions where the feature actually works, it's on by default anyway.
1401 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1404 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1405 AC_CHECK_SIZEOF([off_t])
1407 # If we don't have largefile support, can't handle segsize >= 2GB.
1408 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1409 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1414 ## Functions, global variables
1417 PGAC_VAR_INT_TIMEZONE
1418 AC_FUNC_ACCEPT_ARGTYPES
1419 PGAC_FUNC_GETTIMEOFDAY_1ARG
1420 PGAC_FUNC_WCSTOMBS_L
1422 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1423 # symbols that that library has no business exposing to the world. Pending
1424 # acquisition of a clue by those developers, ignore libedit (including its
1425 # possible alias of libreadline) while checking for everything else.
1426 LIBS_including_readline="$LIBS"
1427 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1429 AC_CHECK_FUNCS([cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
1431 AC_REPLACE_FUNCS(fseeko)
1433 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1434 # Mingw uses macros to access Win32 API calls
1436 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1437 ac_cv_func_fseeko=yes;;
1442 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1443 # by calling it, 2009-04-02
1444 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1445 if test "$PORTNAME" != "solaris"; then
1446 AC_CHECK_FUNCS(posix_fadvise)
1447 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1450 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1451 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1452 # This is probably only present on macOS, but may as well check always
1453 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1456 AC_CHECK_TYPE([struct sockaddr_in6],
1457 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])
1460 [$ac_includes_default
1461 #include <netinet/in.h>])
1464 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1465 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1466 [#include <machine/vmparam.h>
1467 #include <sys/exec.h>
1469 [PS_STRINGS->ps_nargvstr = 1;
1470 PS_STRINGS->ps_argvstr = "foo";])],
1471 [pgac_cv_var_PS_STRINGS=yes],
1472 [pgac_cv_var_PS_STRINGS=no])])
1473 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1474 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1478 # We use our snprintf.c emulation if either snprintf() or vsnprintf()
1479 # is missing. Yes, there are machines that have only one. We may
1480 # also decide to use snprintf.c if snprintf() is present but does not
1481 # have all the features we need --- see below.
1483 if test "$PORTNAME" = "win32"; then
1484 # Win32 gets snprintf.c built unconditionally.
1486 # To properly translate all NLS languages strings, we must support the
1487 # *printf() %$ format, which allows *printf() arguments to be selected
1488 # by position in the translated string.
1490 # libintl versions < 0.13 use the native *printf() functions, and Win32
1491 # *printf() doesn't understand %$, so we must use our /port versions,
1492 # which do understand %$. libintl versions >= 0.13 include their own
1493 # *printf versions on Win32. The libintl 0.13 release note text is:
1495 # C format strings with positions, as they arise when a translator
1496 # needs to reorder a sentence, are now supported on all platforms.
1497 # On those few platforms (NetBSD and Woe32) for which the native
1498 # printf()/fprintf()/... functions don't support such format
1499 # strings, replacements are provided through <libintl.h>.
1501 # We could use libintl >= 0.13's *printf() if we were sure that we had
1502 # a litint >= 0.13 at runtime, but seeing that there is no clean way
1503 # to guarantee that, it is best to just use our own, so we are sure to
1504 # get %$ support. In include/port.h we disable the *printf() macros
1505 # that might have been defined by libintl.
1507 # We do this unconditionally whether NLS is used or not so we are sure
1508 # that all Win32 libraries and binaries behave the same.
1509 pgac_need_repl_snprintf=yes
1511 pgac_need_repl_snprintf=no
1512 AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes)
1513 AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes)
1517 # Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
1518 # include/c.h will provide declarations. Note this is a separate test
1519 # from whether the functions exist in the C library --- there are
1520 # systems that have the functions but don't bother to declare them :-(
1522 AC_CHECK_DECLS([snprintf, vsnprintf])
1525 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1526 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1527 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1531 [return isinf(glob_double) ? 0 : 1;])],
1532 [ac_cv_func_isinf=yes],
1533 [ac_cv_func_isinf=no])])
1535 if test $ac_cv_func_isinf = yes ; then
1536 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1539 # Look for a way to implement a substitute for isinf()
1540 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1543 AC_REPLACE_FUNCS([crypt fls getopt getrusage inet_aton mkdtemp random rint srandom strerror strlcat strlcpy strnlen])
1547 # Windows uses a specialised env handler
1548 # and doesn't need a replacement getpeereid because it doesn't use
1551 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1552 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1553 ac_cv_func_unsetenv=yes
1554 ac_cv_func_getpeereid=yes;;
1556 AC_REPLACE_FUNCS([unsetenv getpeereid])
1560 # System's version of getaddrinfo(), if any, may be used only if we found
1561 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1562 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1563 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1564 test "$PORTNAME" != "win32"; then
1565 AC_REPLACE_FUNCS([getaddrinfo])
1567 AC_LIBOBJ(getaddrinfo)
1570 # Similarly, use system's getopt_long() only if system provides struct option.
1571 if test x"$ac_cv_type_struct_option" = xyes ; then
1572 AC_REPLACE_FUNCS([getopt_long])
1574 AC_LIBOBJ(getopt_long)
1577 # Solaris' getopt() doesn't do what we want for long options, so always use
1578 # our version on that platform.
1579 if test "$PORTNAME" = "solaris"; then
1583 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1584 # so always use our version on Windows.
1585 if test "$PORTNAME" = "win32"; then
1587 AC_LIBOBJ(getopt_long)
1590 # Win32 (really MinGW) support
1591 if test "$PORTNAME" = "win32"; then
1592 AC_REPLACE_FUNCS(gettimeofday)
1598 AC_LIBOBJ(win32error)
1599 AC_LIBOBJ(win32security)
1600 AC_LIBOBJ(win32setlocale)
1601 AC_DEFINE([HAVE_SYMLINK], 1,
1602 [Define to 1 if you have the `symlink' function.])
1603 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1604 #define WIN32_LEAN_AND_MEAN
1605 #include <windows.h>
1607 #include <dbghelp.h>])
1609 if test x"$pgac_minidump_type" = x"yes" ; then
1610 AC_SUBST(have_win32_dbghelp,yes)
1612 AC_SUBST(have_win32_dbghelp,no)
1615 # Cygwin needs only a bit of that
1616 if test "$PORTNAME" = "cygwin"; then
1620 AC_CHECK_DECLS([sys_siglist], [], [],
1621 [#include <signal.h>
1622 /* NetBSD declares sys_siglist in unistd.h. */
1623 #ifdef HAVE_UNISTD_H
1624 # include <unistd.h>
1628 AC_CHECK_FUNC(syslog,
1629 [AC_CHECK_HEADER(syslog.h,
1630 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1632 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1633 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1634 [extern int opterr; opterr = 1;])],
1635 [pgac_cv_var_int_opterr=yes],
1636 [pgac_cv_var_int_opterr=no])])
1637 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1638 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1641 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1642 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1643 [extern int optreset; optreset = 1;])],
1644 [pgac_cv_var_int_optreset=yes],
1645 [pgac_cv_var_int_optreset=no])])
1646 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1647 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1650 AC_CHECK_FUNCS([strtoll strtoq], [break])
1651 AC_CHECK_FUNCS([strtoull strtouq], [break])
1653 if test "$with_icu" = yes; then
1654 ac_save_CPPFLAGS=$CPPFLAGS
1655 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1657 # Verify we have ICU's header files
1658 AC_CHECK_HEADER(unicode/ucol.h, [],
1659 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1661 CPPFLAGS=$ac_save_CPPFLAGS
1664 # Lastly, restore full LIBS list and check for readline/libedit symbols
1665 LIBS="$LIBS_including_readline"
1667 if test "$with_readline" = yes; then
1668 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1669 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1670 AC_CHECK_FUNCS([append_history history_truncate_file])
1674 # This test makes sure that run tests work at all. Sometimes a shared
1675 # library is found by the linker, but the runtime linker can't find it.
1676 # This check should come after all modifications of compiler or linker
1677 # variables, and before any other run tests.
1678 AC_MSG_CHECKING([test program])
1679 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1680 [AC_MSG_RESULT(ok)],
1681 [AC_MSG_RESULT(failed)
1683 Could not execute a simple test program. This may be a problem
1684 related to locating shared libraries. Check the file 'config.log'
1685 for the exact reason.]])],
1686 [AC_MSG_RESULT([cross-compiling])])
1688 # --------------------
1689 # Run tests below here
1690 # --------------------
1692 # Force use of our snprintf if system's doesn't do arg control
1693 # See comment above at snprintf test for details.
1694 if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then
1695 PGAC_FUNC_SNPRINTF_ARG_CONTROL
1696 if test $pgac_cv_snprintf_arg_control != yes ; then
1697 pgac_need_repl_snprintf=yes
1702 dnl Check to see if we have a working 64-bit integer type.
1703 dnl This breaks down into two steps:
1704 dnl (1) figure out if the compiler has a 64-bit int type with working
1705 dnl arithmetic, and if so
1706 dnl (2) see whether snprintf() can format the type correctly. (Currently,
1707 dnl snprintf is the only library routine we really need for int8 support.)
1708 dnl It's entirely possible to have a compiler that handles a 64-bit type
1709 dnl when the C library doesn't; this is fairly likely when using gcc on
1710 dnl an older platform, for example.
1711 dnl If there is no native snprintf() or it does not handle the 64-bit type,
1712 dnl we force our own version of snprintf() to be used instead.
1713 dnl Note this test must be run after our initial check for snprintf/vsnprintf.
1715 dnl As of Postgres 8.4, we no longer support compilers without a working
1716 dnl 64-bit type. But we still handle the case of snprintf being broken.
1718 PGAC_TYPE_64BIT_INT([long int])
1720 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1721 pg_int64_type="long int"
1723 PGAC_TYPE_64BIT_INT([long long int])
1724 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1725 pg_int64_type="long long int"
1727 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1731 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1732 [Define to the name of a signed 64-bit integer type.])
1734 # If we found "long int" is 64 bits, assume snprintf handles it. If
1735 # we found we need to use "long long int", better check. We cope with
1736 # snprintfs that use %lld, %qd, or %I64d as the format. If none of these
1737 # work, fall back to our own snprintf emulation (which we know uses %lld).
1739 if test "$HAVE_LONG_LONG_INT_64" = yes ; then
1740 if test $pgac_need_repl_snprintf = no; then
1741 PGAC_FUNC_SNPRINTF_LONG_LONG_INT_MODIFIER
1742 if test "$LONG_LONG_INT_MODIFIER" = ""; then
1743 # Force usage of our own snprintf, since system snprintf is broken
1744 pgac_need_repl_snprintf=yes
1745 LONG_LONG_INT_MODIFIER='ll'
1748 # Here if we previously decided we needed to use our own snprintf
1749 LONG_LONG_INT_MODIFIER='ll'
1752 # Here if we are not using 'long long int' at all
1753 LONG_LONG_INT_MODIFIER='l'
1756 INT64_MODIFIER="\"$LONG_LONG_INT_MODIFIER\""
1758 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1759 [Define to the appropriate snprintf length modifier for 64-bit ints.])
1761 # Also force use of our snprintf if the system's doesn't support the %z flag.
1762 if test "$pgac_need_repl_snprintf" = no; then
1763 PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
1764 if test "$pgac_cv_snprintf_size_t_support" != yes; then
1765 pgac_need_repl_snprintf=yes
1769 # Now we have checked all the reasons to replace snprintf
1770 if test $pgac_need_repl_snprintf = yes; then
1771 AC_DEFINE(USE_REPL_SNPRINTF, 1, [Use replacement snprintf() functions.])
1775 # has to be down here, rather than with the other builtins, because
1776 # the test uses PG_INT64_TYPE.
1777 PGAC_C_BUILTIN_OP_OVERFLOW
1779 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1780 AC_CHECK_SIZEOF([void *])
1781 AC_CHECK_SIZEOF([size_t])
1782 AC_CHECK_SIZEOF([long])
1784 # Decide whether float4 is passed by value: user-selectable, enabled by default
1785 AC_MSG_CHECKING([whether to build with float4 passed by value])
1786 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1787 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1788 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1789 float4passbyval=true],
1790 [float4passbyval=false])
1791 AC_MSG_RESULT([$enable_float4_byval])
1792 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1794 # Decide whether float8 is passed by value.
1795 # Note: this setting also controls int8 and related types such as timestamp.
1796 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1797 # If not, trying to select it is an error.
1798 AC_MSG_CHECKING([whether to build with float8 passed by value])
1799 if test $ac_cv_sizeof_void_p -ge 8 ; then
1800 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1802 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1803 if test "$enable_float8_byval" = yes ; then
1804 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1807 if test "$enable_float8_byval" = yes ; then
1808 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1809 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1810 float8passbyval=true
1812 float8passbyval=false
1814 AC_MSG_RESULT([$enable_float8_byval])
1815 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1817 # Determine memory alignment requirements for the basic C data types.
1819 AC_CHECK_ALIGNOF(short)
1820 AC_CHECK_ALIGNOF(int)
1821 AC_CHECK_ALIGNOF(long)
1822 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1823 AC_CHECK_ALIGNOF(long long int)
1825 AC_CHECK_ALIGNOF(double)
1827 # Compute maximum alignment of any basic type.
1828 # We assume long's alignment is at least as strong as char, short, or int;
1829 # but we must check long long (if it is being used for int64) and double.
1830 # Note that we intentionally do not consider any types wider than 64 bits,
1831 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1832 # for disk and memory space.
1834 MAX_ALIGNOF=$ac_cv_alignof_long
1835 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1836 MAX_ALIGNOF=$ac_cv_alignof_double
1838 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1839 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1841 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1844 # Some platforms predefine the types int8, int16, etc. Only check
1845 # a (hopefully) representative subset.
1846 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1847 [#include <stdio.h>])
1849 # Some compilers offer a 128-bit integer scalar type.
1850 PGAC_TYPE_128BIT_INT
1852 # Check for various atomic operations now that we have checked how to declare
1854 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1855 PGAC_HAVE_GCC__SYNC_INT32_TAS
1856 PGAC_HAVE_GCC__SYNC_INT32_CAS
1857 PGAC_HAVE_GCC__SYNC_INT64_CAS
1858 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1859 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1862 # Check for x86 cpuid instruction
1863 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1864 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1865 [[unsigned int exx[4] = {0, 0, 0, 0};
1866 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1868 [pgac_cv__get_cpuid="yes"],
1869 [pgac_cv__get_cpuid="no"])])
1870 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1871 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1874 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1875 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
1876 [[unsigned int exx[4] = {0, 0, 0, 0};
1877 __get_cpuid(exx[0], 1);
1879 [pgac_cv__cpuid="yes"],
1880 [pgac_cv__cpuid="no"])])
1881 if test x"$pgac_cv__cpuid" = x"yes"; then
1882 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
1885 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
1887 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
1888 # with the default compiler flags. If not, check if adding the -msse4.2
1889 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
1890 PGAC_SSE42_CRC32_INTRINSICS([])
1891 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
1892 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
1894 AC_SUBST(CFLAGS_SSE42)
1896 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
1897 # define __SSE4_2__ in that case.
1898 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1900 #error __SSE4_2__ not defined
1902 ])], [SSE4_2_TARGETED=1])
1904 # Select CRC-32C implementation.
1906 # If we are targeting a processor that has SSE 4.2 instructions, we can use the
1907 # special CRC instructions for calculating CRC-32C. If we're not targeting such
1908 # a processor, but we can nevertheless produce code that uses the SSE
1909 # intrinsics, perhaps with some extra CFLAGS, compile both implementations and
1910 # select which one to use at runtime, depending on whether SSE 4.2 is supported
1911 # by the processor we're running on.
1913 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
1914 # in the template or configure command line.
1915 if test x"$USE_SSE42_CRC32C" = x"" && test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"" && test x"$USE_SLICING_BY_8_CRC32C" = x""; then
1916 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
1919 # the CPUID instruction is needed for the runtime check.
1920 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
1921 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
1923 # fall back to slicing-by-8 algorithm which doesn't require any special
1925 USE_SLICING_BY_8_CRC32C=1
1930 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
1931 AC_MSG_CHECKING([which CRC-32C implementation to use])
1932 if test x"$USE_SSE42_CRC32C" = x"1"; then
1933 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
1934 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
1935 AC_MSG_RESULT(SSE 4.2)
1937 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
1938 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSSE 4.2 CRC instructions with a runtime check.])
1939 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_choose.o"
1940 AC_MSG_RESULT(SSE 4.2 with runtime check)
1942 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
1943 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
1944 AC_MSG_RESULT(slicing-by-8)
1947 AC_SUBST(PG_CRC32C_OBJS)
1950 # Select semaphore implementation type.
1951 if test "$PORTNAME" != "win32"; then
1952 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
1953 # Need sem_open for this
1954 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
1956 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
1957 # Need sem_init for this
1958 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
1960 AC_MSG_CHECKING([which semaphore API to use])
1961 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
1962 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
1963 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
1964 sematype="named POSIX"
1966 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
1967 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
1968 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
1969 sematype="unnamed POSIX"
1971 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
1972 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
1976 AC_MSG_RESULT([$sematype])
1978 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
1979 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
1983 # Select shared-memory implementation type.
1984 if test "$PORTNAME" != "win32"; then
1985 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
1986 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
1988 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
1989 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
1992 # Select random number source
1994 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
1995 # in the template or configure command line.
1997 # If not selected manually, try to select a source automatically.
1998 if test "$enable_strong_random" = "yes" && test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
1999 if test x"$with_openssl" = x"yes" ; then
2000 USE_OPENSSL_RANDOM=1
2001 elif test "$PORTNAME" = "win32" ; then
2004 AC_CHECK_FILE([/dev/urandom], [], [])
2006 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2012 AC_MSG_CHECKING([which random number source to use])
2013 if test "$enable_strong_random" = yes ; then
2014 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2015 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2016 AC_MSG_RESULT([OpenSSL])
2017 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2018 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2019 AC_MSG_RESULT([Windows native])
2020 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2021 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2022 AC_MSG_RESULT([/dev/urandom])
2025 no source of strong random numbers was found
2026 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers,
2027 for authentication protocols. You can use --disable-strong-random to use a
2028 built-in pseudo random number generator, but that may be insecure.])
2030 AC_DEFINE(HAVE_STRONG_RANDOM, 1, [Define to use have a strong random number source])
2032 AC_MSG_RESULT([weak builtin PRNG])
2034 *** Not using a strong random number source may be insecure.])
2037 # If not set in template file, set bytes to use libc memset()
2038 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2039 MEMSET_LOOP_LIMIT=1024
2041 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2044 if test "$enable_nls" = yes ; then
2048 # Check for Tcl configuration script tclConfig.sh
2049 if test "$with_tcl" = yes; then
2050 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2051 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2052 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2053 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2054 if test "$TCL_SHARED_BUILD" != 1; then
2055 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2056 Use --without-tcl to disable building PL/Tcl.])
2058 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2059 ac_save_CPPFLAGS=$CPPFLAGS
2060 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2061 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2062 CPPFLAGS=$ac_save_CPPFLAGS
2065 # check for <perl.h>
2066 if test "$with_perl" = yes; then
2067 ac_save_CPPFLAGS=$CPPFLAGS
2068 CPPFLAGS="$CPPFLAGS -I$perl_archlibexp/CORE"
2069 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2070 [#include <EXTERN.h>])
2071 # While we're at it, check that we can link to libperl.
2072 # On most platforms, if perl.h is there then libperl.so will be too, but at
2073 # this writing Debian packages them separately. There is no known reason to
2074 # waste cycles on separate probes for the Tcl or Python libraries, though.
2075 pgac_save_LIBS=$LIBS
2076 LIBS="$perl_embed_ldflags"
2077 AC_MSG_CHECKING([for libperl])
2078 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2081 ], [perl_alloc();])],
2082 [AC_MSG_RESULT(yes)],
2084 AC_MSG_ERROR([libperl library is required for Perl])])
2085 LIBS=$pgac_save_LIBS
2086 CPPFLAGS=$ac_save_CPPFLAGS
2089 # check for <Python.h>
2090 if test "$with_python" = yes; then
2091 ac_save_CPPFLAGS=$CPPFLAGS
2092 CPPFLAGS="$python_includespec $CPPFLAGS"
2093 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2094 CPPFLAGS=$ac_save_CPPFLAGS
2098 # Check for DocBook and tools
2101 PGAC_CHECK_DOCBOOK(4.2)
2102 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2103 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2104 PGAC_PATH_PROGS(FOP, fop)
2107 # Check for test tools
2109 if test "$enable_tap_tests" = yes; then
2110 # Check for necessary modules, unless user has specified the "prove" to use;
2111 # in that case it's her responsibility to have a working configuration.
2112 # (prove might be part of a different Perl installation than perl, eg on
2113 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2114 if test -z "$PROVE"; then
2115 AX_PROG_PERL_MODULES(IPC::Run, ,
2116 AC_MSG_ERROR([Perl module IPC::Run is required to run TAP tests]))
2118 # Now make sure we know where prove is
2119 PGAC_PATH_PROGS(PROVE, prove)
2120 if test -z "$PROVE"; then
2121 AC_MSG_ERROR([prove not found])
2127 # We have to run the thread test near the end so we have all our symbols
2128 # defined. Cross compiling throws a warning.
2130 if test "$enable_thread_safety" = yes; then
2131 if test "$PORTNAME" != "win32"
2133 AC_MSG_CHECKING([thread safety of required library functions])
2137 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2138 LIBS="$LIBS $PTHREAD_LIBS"
2140 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2141 [AC_MSG_RESULT(yes)],
2143 AC_MSG_ERROR([thread test program failed
2144 This platform is not thread-safe. Check the file 'config.log' or compile
2145 and run src/test/thread/thread_test for the exact reason.
2146 Use --disable-thread-safety to disable thread safety.])],
2147 [AC_MSG_RESULT(maybe)
2149 *** Skipping thread test program because of cross-compile build.
2150 *** Run the program in src/test/thread on the target machine.
2155 AC_MSG_WARN([*** skipping thread test on Win32])
2159 # If compiler will take -Wl,--as-needed (or various platform-specific
2160 # spellings thereof) then add that to LDFLAGS. This is much easier than
2161 # trying to filter LIBS to the minimum for each executable.
2162 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2163 # libreadline; therefore we postpone testing it until we know what library
2164 # dependencies readline has. The test code will try to link with $LIBS.
2165 if test "$with_readline" = yes; then
2166 link_test_func=readline
2171 if test "$PORTNAME" = "darwin"; then
2172 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2173 elif test "$PORTNAME" = "openbsd"; then
2174 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2176 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2179 # Create compiler version string
2180 if test x"$GCC" = x"yes" ; then
2181 cc_string=`${CC} --version | sed q`
2182 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2183 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2184 cc_string=`${CC} -V 2>&1 | sed q`
2189 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2190 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2191 [A string containing the version number, platform, and C compiler])
2193 # Supply a numeric version string for use by 3rd party add-ons
2194 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2195 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2197 $AWK '{printf "%d%04d", $1, $2}'`"]
2198 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2199 AC_SUBST(PG_VERSION_NUM)
2202 # Begin output steps
2204 AC_MSG_NOTICE([using compiler=$cc_string])
2205 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2206 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2207 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2209 # prepare build tree if outside source tree
2210 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2211 # Note 2: /bin/pwd might be better than shell's built-in at getting
2212 # a symlink-free name.
2213 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2217 if test "$no_create" != yes; then
2218 _AS_ECHO_N([preparing build tree... ])
2219 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2220 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2221 || AC_MSG_ERROR(failed)
2225 AC_SUBST(vpath_build)
2228 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2231 src/backend/port/dynloader.c:src/backend/port/dynloader/${template}.c
2232 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2233 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2234 src/include/dynloader.h:src/backend/port/dynloader/${template}.h
2235 src/include/pg_config_os.h:src/include/port/${template}.h
2236 src/Makefile.port:src/makefiles/Makefile.${template}
2239 if test "$PORTNAME" = "win32"; then
2240 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2241 # Links sometimes fail undetected on Mingw -
2242 # so here we detect it and warn the user
2243 for FILE in $CONFIG_LINKS
2245 # test -e works for symlinks in the MinGW console
2246 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2251 AC_CONFIG_HEADERS([src/include/pg_config.h],
2253 # Update timestamp for pg_config.h (see Makefile.global)
2254 echo >src/include/stamp-h
2257 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2259 # Update timestamp for pg_config_ext.h (see Makefile.global)
2260 echo >src/include/stamp-ext-h
2263 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2264 [echo >src/interfaces/ecpg/include/stamp-h])