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) 1996-2017, 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([$with_ldap])
690 AC_MSG_CHECKING([whether to build with Bonjour support])
691 PGAC_ARG_BOOL(with, bonjour, no,
692 [build with Bonjour support],
693 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
694 AC_MSG_RESULT([$with_bonjour])
700 AC_MSG_CHECKING([whether to build with OpenSSL support])
701 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
702 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
703 AC_MSG_RESULT([$with_openssl])
704 AC_SUBST(with_openssl)
709 AC_MSG_CHECKING([whether to build with SELinux support])
710 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
711 AC_SUBST(with_selinux)
712 AC_MSG_RESULT([$with_selinux])
717 AC_MSG_CHECKING([whether to build with systemd support])
718 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
719 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
720 AC_SUBST(with_systemd)
721 AC_MSG_RESULT([$with_systemd])
726 PGAC_ARG_BOOL(with, readline, yes,
727 [do not use GNU Readline nor BSD Libedit for editing])
728 # readline on MinGW has problems with backslashes in psql and other bugs.
729 # This is particularly a problem with non-US code pages.
730 # Therefore disable its use until we understand the cause. 2004-07-20
731 if test "$PORTNAME" = "win32"; then
732 if test "$with_readline" = yes; then
733 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
742 PGAC_ARG_BOOL(with, libedit-preferred, no,
743 [prefer BSD Libedit over GNU Readline])
749 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
750 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
751 # UUID library. More than one of these might be present on a given platform,
752 # so we make the user say which one she wants.
754 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
755 if test x"$with_uuid" = x"" ; then
758 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
759 if test "$with_ossp_uuid" = yes ; then
763 if test "$with_uuid" = bsd ; then
764 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
765 UUID_EXTRA_OBJS="md5.o sha1.o"
766 elif test "$with_uuid" = e2fs ; then
767 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
768 UUID_EXTRA_OBJS="md5.o sha1.o"
769 elif test "$with_uuid" = ossp ; then
770 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
772 elif test "$with_uuid" = no ; then
775 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
778 AC_SUBST(UUID_EXTRA_OBJS)
784 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
785 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
787 if test "$with_libxml" = yes ; then
788 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
789 if test -n "$XML2_CONFIG"; then
790 for pgac_option in `$XML2_CONFIG --cflags`; do
792 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
795 for pgac_option in `$XML2_CONFIG --libs`; do
797 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
803 AC_SUBST(with_libxml)
808 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
809 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
812 AC_SUBST(with_libxslt)
817 PGAC_ARG_REQ(with, system-tzdata,
818 [DIR], [use system time zone data in DIR])
819 AC_SUBST(with_system_tzdata)
824 PGAC_ARG_BOOL(with, zlib, yes,
832 # Assume system is ELF if it predefines __ELF__ as 1,
833 # otherwise believe host_os based default.
835 freebsd1*|freebsd2*) elf=no;;
836 freebsd3*|freebsd4*) elf=yes;;
845 [if test "X$elf" = "Xyes" ; then
856 CPPFLAGS="$CPPFLAGS $INCLUDES"
857 LDFLAGS="$LDFLAGS $LIBDIRS"
859 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
860 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
864 AC_SUBST(with_gnu_ld)
867 AC_CHECK_TOOL(AR, ar, ar)
868 if test "$PORTNAME" = "win32"; then
869 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
870 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
871 AC_CHECK_TOOL(WINDRES, windres, windres)
875 # When Autoconf chooses install-sh as install program it tries to generate
876 # a relative path to it in each makefile where it substitutes it. This clashes
877 # with our Makefile.global concept. This workaround helps.
879 *install-sh*) install_bin='';;
880 *) install_bin=$INSTALL;;
882 AC_SUBST(install_bin)
884 PGAC_PATH_PROGS(TAR, tar)
888 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
889 # a relative path to it in each makefile where it substitutes it. This clashes
890 # with our Makefile.global concept. This workaround helps.
892 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
899 if test "$with_perl" = yes; then
900 if test -z "$PERL"; then
901 AC_MSG_ERROR([Perl not found])
903 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
904 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
905 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
906 You might have to rebuild your Perl installation. Refer to the
907 documentation for details. Use --without-perl to disable building
910 PGAC_CHECK_PERL_EMBED_CCFLAGS
911 PGAC_CHECK_PERL_EMBED_LDFLAGS
914 if test "$with_python" = yes; then
916 PGAC_CHECK_PYTHON_EMBED_SETUP
919 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
920 PGAC_PATH_PROGS(ZIC, zic)
921 if test -z "$ZIC"; then
923 When cross-compiling, either use the option --with-system-tzdata to use
924 existing time-zone data, or set the environment variable ZIC to a zic
925 program to use during the build.])
932 # For each platform, we need to know about any special compile and link
933 # libraries, and whether the normal C function names are thread-safe.
934 # See the comment at the top of src/port/thread.c for more information.
935 # WIN32 doesn't need the pthread tests; it always uses threads
937 # These tests are run before the library-tests, because linking with the
938 # other libraries can pull in the pthread functions as a side-effect. We
939 # want to use the -pthread or similar flags directly, and not rely on
940 # the side-effects of linking with some other library.
942 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
943 # invocation below is the first one in the script, and autoconf generates
944 # additional code for that, which must not be inside the if-block. AS_IF
945 # knows how to do that.
946 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
948 AX_PTHREAD # set thread flags
950 # Some platforms use these, so just define them. They can't hurt if they
951 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
952 # enables 5-arg getpwuid_r, among other things.
953 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
955 # Check for *_r functions
958 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
959 LIBS="$LIBS $PTHREAD_LIBS"
961 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
962 pthread.h not found; use --disable-thread-safety to disable thread safety])])
964 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
966 # Do test here with the proper thread flags
967 PGAC_FUNC_STRERROR_R_INT
973 # do not use values from template file
978 AC_SUBST(PTHREAD_CFLAGS)
979 AC_SUBST(PTHREAD_LIBS)
985 ## Most libraries are included only if they demonstrably provide a function
986 ## we need, but libm is an exception: always include it, because there are
987 ## too many compilers that play cute optimization games that will break
988 ## probes for standard functions such as pow().
991 AC_CHECK_LIB(m, main)
992 AC_SEARCH_LIBS(setproctitle, util)
993 AC_SEARCH_LIBS(dlopen, dl)
994 AC_SEARCH_LIBS(socket, [socket ws2_32])
995 AC_SEARCH_LIBS(shl_load, dld)
996 # We only use libld in port/dynloader/aix.c
999 AC_SEARCH_LIBS(ldopen, ld)
1002 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1003 AC_SEARCH_LIBS(crypt, crypt)
1004 AC_SEARCH_LIBS(shm_open, rt)
1005 AC_SEARCH_LIBS(shm_unlink, rt)
1006 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1008 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1009 # Required for thread_test.c on Solaris
1010 AC_SEARCH_LIBS(sched_yield, rt)
1011 # Required for thread_test.c on Solaris 2.5:
1012 # Other ports use it too (HP-UX) so test unconditionally
1013 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1015 AC_SEARCH_LIBS(shmget, cygipc)
1017 if test "$with_readline" = yes; then
1019 if test x"$pgac_cv_check_readline" = x"no"; then
1020 AC_MSG_ERROR([readline library not found
1021 If you have readline already installed, see config.log for details on the
1022 failure. It is possible the compiler isn't looking in the proper directory.
1023 Use --without-readline to disable readline support.])
1027 if test "$with_zlib" = yes; then
1028 AC_CHECK_LIB(z, inflate, [],
1029 [AC_MSG_ERROR([zlib library not found
1030 If you have zlib already installed, see config.log for details on the
1031 failure. It is possible the compiler isn't looking in the proper directory.
1032 Use --without-zlib to disable zlib support.])])
1035 if test "$enable_spinlocks" = yes; then
1036 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1039 *** Not using spinlocks will cause poor performance.])
1042 if test "$enable_atomics" = yes; then
1043 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1046 *** Not using atomic operations will cause poor performance.])
1049 if test "$with_gssapi" = yes ; then
1050 if test "$PORTNAME" != "win32"; then
1051 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1052 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1054 LIBS="$LIBS -lgssapi32"
1058 if test "$with_openssl" = yes ; then
1060 if test "$PORTNAME" != "win32"; then
1061 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1062 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1064 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1065 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1067 AC_CHECK_FUNCS([SSL_get_current_compression])
1068 # Functions introduced in OpenSSL 1.1.0. We used to check for
1069 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1070 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1071 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1073 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1074 # OpenSSL versions before 1.1.0 required setting callback functions, for
1075 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1076 # function was removed.
1077 AC_CHECK_FUNCS([CRYPTO_lock])
1080 if test "$with_pam" = yes ; then
1081 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1084 if test "$with_libxml" = yes ; then
1085 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1088 if test "$with_libxslt" = yes ; then
1089 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1092 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1093 if test "$with_ldap" = yes ; then
1095 if test "$PORTNAME" != "win32"; then
1096 AC_CHECK_LIB(ldap, ldap_bind, [],
1097 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1099 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1100 if test "$enable_thread_safety" = yes; then
1101 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1102 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1103 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1104 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1105 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1107 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1110 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1111 LDAP_LIBS_FE="-lwldap32"
1112 LDAP_LIBS_BE="-lwldap32"
1116 AC_SUBST(LDAP_LIBS_FE)
1117 AC_SUBST(LDAP_LIBS_BE)
1119 # for contrib/sepgsql
1120 if test "$with_selinux" = yes; then
1121 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1122 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1125 # for contrib/uuid-ossp
1126 if test "$with_uuid" = bsd ; then
1127 # On BSD, the UUID functions are in libc
1128 AC_CHECK_FUNC(uuid_to_string,
1130 [AC_MSG_ERROR([BSD UUID functions are not present])])
1131 elif test "$with_uuid" = e2fs ; then
1132 # On macOS, the UUID functions are in libc
1133 AC_CHECK_FUNC(uuid_generate,
1135 [AC_CHECK_LIB(uuid, uuid_generate,
1136 [UUID_LIBS="-luuid"],
1137 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1138 elif test "$with_uuid" = ossp ; then
1139 AC_CHECK_LIB(ossp-uuid, uuid_export,
1140 [UUID_LIBS="-lossp-uuid"],
1141 [AC_CHECK_LIB(uuid, uuid_export,
1142 [UUID_LIBS="-luuid"],
1143 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1152 AC_CHECK_HEADERS([atomic.h crypt.h dld.h fp_class.h getopt.h ieeefp.h ifaddrs.h langinfo.h mbarrier.h poll.h sys/epoll.h sys/ipc.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/sockio.h sys/tas.h sys/un.h termios.h ucred.h utime.h wchar.h wctype.h])
1154 # On BSD, test for net/if.h will fail unless sys/socket.h
1155 # is included first.
1156 AC_CHECK_HEADERS(net/if.h, [], [],
1157 [AC_INCLUDES_DEFAULT
1158 #include <sys/socket.h>
1161 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1162 # is included first.
1163 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1164 [AC_INCLUDES_DEFAULT
1165 #include <sys/param.h>
1168 # At least on IRIX, test for netinet/tcp.h will fail unless
1169 # netinet/in.h is included first.
1170 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1171 [AC_INCLUDES_DEFAULT
1172 #include <netinet/in.h>
1175 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1176 AC_CHECK_HEADERS(readline/readline.h, [],
1177 [AC_CHECK_HEADERS(readline.h, [],
1178 [AC_MSG_ERROR([readline header not found
1179 If you have readline already installed, see config.log for details on the
1180 failure. It is possible the compiler isn't looking in the proper directory.
1181 Use --without-readline to disable readline support.])])])
1182 AC_CHECK_HEADERS(readline/history.h, [],
1183 [AC_CHECK_HEADERS(history.h, [],
1184 [AC_MSG_ERROR([history header not found
1185 If you have readline already installed, see config.log for details on the
1186 failure. It is possible the compiler isn't looking in the proper directory.
1187 Use --without-readline to disable readline support.])])])
1190 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1191 # Some installations of libedit usurp /usr/include/readline/, which seems
1192 # bad practice, since in combined installations readline will have its headers
1193 # there. We might have to resort to AC_EGREP checks to make sure we found
1194 # the proper header...
1195 AC_CHECK_HEADERS(editline/readline.h, [],
1196 [AC_CHECK_HEADERS(readline.h, [],
1197 [AC_CHECK_HEADERS(readline/readline.h, [],
1198 [AC_MSG_ERROR([readline header not found
1199 If you have libedit already installed, see config.log for details on the
1200 failure. It is possible the compiler isn't looking in the proper directory.
1201 Use --without-readline to disable libedit support.])])])])
1202 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1203 # not be there at all. Hence, don't complain if not found. We must check
1204 # though, since in yet other versions it is an independent header.
1205 AC_CHECK_HEADERS(editline/history.h, [],
1206 [AC_CHECK_HEADERS(history.h, [],
1207 [AC_CHECK_HEADERS(readline/history.h)])])
1210 if test "$with_zlib" = yes; then
1211 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1212 If you have zlib already installed, see config.log for details on the
1213 failure. It is possible the compiler isn't looking in the proper directory.
1214 Use --without-zlib to disable zlib support.])])
1217 if test "$with_gssapi" = yes ; then
1218 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1219 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1222 if test "$with_openssl" = yes ; then
1223 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1224 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1227 if test "$with_pam" = yes ; then
1228 AC_CHECK_HEADERS(security/pam_appl.h, [],
1229 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1230 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1233 if test "$with_bsd_auth" = yes ; then
1234 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1237 if test "$with_systemd" = yes ; then
1238 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1241 if test "$with_libxml" = yes ; then
1242 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1245 if test "$with_libxslt" = yes ; then
1246 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1249 if test "$with_ldap" = yes ; then
1250 if test "$PORTNAME" != "win32"; then
1251 AC_CHECK_HEADERS(ldap.h, [],
1252 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1255 AC_CHECK_HEADERS(winldap.h, [],
1256 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1257 [AC_INCLUDES_DEFAULT
1258 #include <windows.h>
1263 if test "$with_bonjour" = yes ; then
1264 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1265 AC_SEARCH_LIBS(DNSServiceRefSockFD, dns_sd, [],
1266 [AC_MSG_ERROR([could not find function 'DNSServiceRefSockFD' required for Bonjour])])
1269 # for contrib/uuid-ossp
1270 if test "$with_uuid" = bsd ; then
1271 AC_CHECK_HEADERS(uuid.h,
1272 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1273 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1274 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1275 elif test "$with_uuid" = e2fs ; then
1276 AC_CHECK_HEADERS(uuid/uuid.h,
1277 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1278 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1279 [AC_CHECK_HEADERS(uuid.h,
1280 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1281 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1282 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1283 elif test "$with_uuid" = ossp ; then
1284 AC_CHECK_HEADERS(ossp/uuid.h,
1285 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1286 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1287 [AC_CHECK_HEADERS(uuid.h,
1288 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1289 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1290 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1293 if test "$PORTNAME" = "win32" ; then
1294 AC_CHECK_HEADERS(crtdefs.h)
1298 ## Types, structures, compiler characteristics
1301 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1304 PGAC_PRINTF_ARCHETYPE
1305 AC_C_FLEXIBLE_ARRAY_MEMBER
1307 PGAC_C_FUNCNAME_SUPPORT
1308 PGAC_C_STATIC_ASSERT
1310 PGAC_C_TYPES_COMPATIBLE
1311 PGAC_C_BUILTIN_BSWAP16
1312 PGAC_C_BUILTIN_BSWAP32
1313 PGAC_C_BUILTIN_BSWAP64
1314 PGAC_C_BUILTIN_CONSTANT_P
1315 PGAC_C_BUILTIN_UNREACHABLE
1316 PGAC_C_COMPUTED_GOTO
1318 PGAC_STRUCT_TIMEZONE
1320 PGAC_STRUCT_SOCKADDR_UN
1321 PGAC_STRUCT_SOCKADDR_STORAGE
1322 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1323 PGAC_STRUCT_ADDRINFO
1326 AC_TYPE_LONG_LONG_INT
1330 # MSVC doesn't cope well with defining restrict to __restrict, the
1331 # spelling it understands, because it conflicts with
1332 # __declspec(restrict). Therefore we define pg_restrict to the
1333 # appropriate definition, which presumably won't conflict.
1335 # Allow platforms with buggy compilers to force restrict to not be
1336 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1339 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1342 pg_restrict="$ac_cv_c_restrict"
1344 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1345 [Define to keyword to use for C99 restrict support, or to nothing if not
1348 AC_CHECK_TYPES([struct cmsgcred], [], [],
1349 [#include <sys/socket.h>
1350 #include <sys/param.h>
1351 #ifdef HAVE_SYS_UCRED_H
1352 #include <sys/ucred.h>
1355 AC_CHECK_TYPES([struct option], [], [],
1356 [#ifdef HAVE_GETOPT_H
1360 if test "$with_zlib" = yes; then
1361 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1362 # did not). While we could work around the lack of z_streamp, it
1363 # seems unwise to encourage people to use such old zlib versions...
1364 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1365 Use --without-zlib to disable zlib support.])],
1366 [#include <zlib.h>])
1369 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1372 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1373 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1374 [int a = 0; int *p = &a; int r;
1375 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1376 [pgac_cv_have_ppc_mutex_hint=yes],
1377 [pgac_cv_have_ppc_mutex_hint=no])
1378 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1379 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1380 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1385 # Check largefile support. You might think this is a system service not a
1386 # compiler characteristic, but you'd be wrong. We must check this before
1387 # probing existence of related functions such as fseeko, since the largefile
1388 # defines can affect what is generated for that.
1389 if test "$PORTNAME" != "win32"; then
1391 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1392 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1393 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1394 dnl versions where the feature actually works, it's on by default anyway.
1395 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1398 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1399 AC_CHECK_SIZEOF([off_t])
1401 # If we don't have largefile support, can't handle segsize >= 2GB.
1402 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1403 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1408 ## Functions, global variables
1411 PGAC_VAR_INT_TIMEZONE
1412 AC_FUNC_ACCEPT_ARGTYPES
1413 PGAC_FUNC_GETTIMEOFDAY_1ARG
1414 PGAC_FUNC_WCSTOMBS_L
1416 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1417 # symbols that that library has no business exposing to the world. Pending
1418 # acquisition of a clue by those developers, ignore libedit (including its
1419 # possible alias of libreadline) while checking for everything else.
1420 LIBS_including_readline="$LIBS"
1421 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1423 AC_CHECK_FUNCS([cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
1425 AC_REPLACE_FUNCS(fseeko)
1427 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1428 # Mingw uses macros to access Win32 API calls
1430 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1431 ac_cv_func_fseeko=yes;;
1436 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1437 # by calling it, 2009-04-02
1438 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1439 if test "$PORTNAME" != "solaris"; then
1440 AC_CHECK_FUNCS(posix_fadvise)
1441 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1444 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1445 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1446 # This is probably only present on macOS, but may as well check always
1447 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1450 AC_CHECK_TYPE([struct sockaddr_in6],
1451 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])
1454 [$ac_includes_default
1455 #include <netinet/in.h>])
1458 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1459 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1460 [#include <machine/vmparam.h>
1461 #include <sys/exec.h>
1463 [PS_STRINGS->ps_nargvstr = 1;
1464 PS_STRINGS->ps_argvstr = "foo";])],
1465 [pgac_cv_var_PS_STRINGS=yes],
1466 [pgac_cv_var_PS_STRINGS=no])])
1467 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1468 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1472 # We use our snprintf.c emulation if either snprintf() or vsnprintf()
1473 # is missing. Yes, there are machines that have only one. We may
1474 # also decide to use snprintf.c if snprintf() is present but does not
1475 # have all the features we need --- see below.
1477 if test "$PORTNAME" = "win32"; then
1478 # Win32 gets snprintf.c built unconditionally.
1480 # To properly translate all NLS languages strings, we must support the
1481 # *printf() %$ format, which allows *printf() arguments to be selected
1482 # by position in the translated string.
1484 # libintl versions < 0.13 use the native *printf() functions, and Win32
1485 # *printf() doesn't understand %$, so we must use our /port versions,
1486 # which do understand %$. libintl versions >= 0.13 include their own
1487 # *printf versions on Win32. The libintl 0.13 release note text is:
1489 # C format strings with positions, as they arise when a translator
1490 # needs to reorder a sentence, are now supported on all platforms.
1491 # On those few platforms (NetBSD and Woe32) for which the native
1492 # printf()/fprintf()/... functions don't support such format
1493 # strings, replacements are provided through <libintl.h>.
1495 # We could use libintl >= 0.13's *printf() if we were sure that we had
1496 # a litint >= 0.13 at runtime, but seeing that there is no clean way
1497 # to guarantee that, it is best to just use our own, so we are sure to
1498 # get %$ support. In include/port.h we disable the *printf() macros
1499 # that might have been defined by libintl.
1501 # We do this unconditionally whether NLS is used or not so we are sure
1502 # that all Win32 libraries and binaries behave the same.
1503 pgac_need_repl_snprintf=yes
1505 pgac_need_repl_snprintf=no
1506 AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes)
1507 AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes)
1511 # Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
1512 # include/c.h will provide declarations. Note this is a separate test
1513 # from whether the functions exist in the C library --- there are
1514 # systems that have the functions but don't bother to declare them :-(
1516 AC_CHECK_DECLS([snprintf, vsnprintf])
1519 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1520 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1521 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1525 [return isinf(glob_double) ? 0 : 1;])],
1526 [ac_cv_func_isinf=yes],
1527 [ac_cv_func_isinf=no])])
1529 if test $ac_cv_func_isinf = yes ; then
1530 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1533 # Look for a way to implement a substitute for isinf()
1534 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1537 AC_REPLACE_FUNCS([crypt fls getopt getrusage inet_aton mkdtemp random rint srandom strerror strlcat strlcpy strnlen])
1541 # Windows uses a specialised env handler
1542 # and doesn't need a replacement getpeereid because it doesn't use
1545 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1546 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1547 ac_cv_func_unsetenv=yes
1548 ac_cv_func_getpeereid=yes;;
1550 AC_REPLACE_FUNCS([unsetenv getpeereid])
1554 # System's version of getaddrinfo(), if any, may be used only if we found
1555 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1556 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1557 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1558 test "$PORTNAME" != "win32"; then
1559 AC_REPLACE_FUNCS([getaddrinfo])
1561 AC_LIBOBJ(getaddrinfo)
1564 # Similarly, use system's getopt_long() only if system provides struct option.
1565 if test x"$ac_cv_type_struct_option" = xyes ; then
1566 AC_REPLACE_FUNCS([getopt_long])
1568 AC_LIBOBJ(getopt_long)
1571 # Solaris' getopt() doesn't do what we want for long options, so always use
1572 # our version on that platform.
1573 if test "$PORTNAME" = "solaris"; then
1577 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1578 # so always use our version on Windows.
1579 if test "$PORTNAME" = "win32"; then
1581 AC_LIBOBJ(getopt_long)
1584 # Win32 (really MinGW) support
1585 if test "$PORTNAME" = "win32"; then
1586 AC_REPLACE_FUNCS(gettimeofday)
1592 AC_LIBOBJ(win32error)
1593 AC_LIBOBJ(win32security)
1594 AC_LIBOBJ(win32setlocale)
1595 AC_DEFINE([HAVE_SYMLINK], 1,
1596 [Define to 1 if you have the `symlink' function.])
1597 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1598 #define WIN32_LEAN_AND_MEAN
1599 #include <windows.h>
1601 #include <dbghelp.h>])
1603 if test x"$pgac_minidump_type" = x"yes" ; then
1604 AC_SUBST(have_win32_dbghelp,yes)
1606 AC_SUBST(have_win32_dbghelp,no)
1609 # Cygwin needs only a bit of that
1610 if test "$PORTNAME" = "cygwin"; then
1614 AC_CHECK_DECLS([sys_siglist], [], [],
1615 [#include <signal.h>
1616 /* NetBSD declares sys_siglist in unistd.h. */
1617 #ifdef HAVE_UNISTD_H
1618 # include <unistd.h>
1622 AC_CHECK_FUNC(syslog,
1623 [AC_CHECK_HEADER(syslog.h,
1624 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1626 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1627 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1628 [extern int opterr; opterr = 1;])],
1629 [pgac_cv_var_int_opterr=yes],
1630 [pgac_cv_var_int_opterr=no])])
1631 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1632 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1635 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1636 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1637 [extern int optreset; optreset = 1;])],
1638 [pgac_cv_var_int_optreset=yes],
1639 [pgac_cv_var_int_optreset=no])])
1640 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1641 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1644 AC_CHECK_FUNCS([strtoll strtoq], [break])
1645 AC_CHECK_FUNCS([strtoull strtouq], [break])
1647 if test "$with_icu" = yes; then
1648 ac_save_CPPFLAGS=$CPPFLAGS
1649 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1651 # Verify we have ICU's header files
1652 AC_CHECK_HEADER(unicode/ucol.h, [],
1653 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1655 CPPFLAGS=$ac_save_CPPFLAGS
1658 # Lastly, restore full LIBS list and check for readline/libedit symbols
1659 LIBS="$LIBS_including_readline"
1661 if test "$with_readline" = yes; then
1662 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1663 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1664 AC_CHECK_FUNCS([append_history history_truncate_file])
1668 # This test makes sure that run tests work at all. Sometimes a shared
1669 # library is found by the linker, but the runtime linker can't find it.
1670 # This check should come after all modifications of compiler or linker
1671 # variables, and before any other run tests.
1672 AC_MSG_CHECKING([test program])
1673 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1674 [AC_MSG_RESULT(ok)],
1675 [AC_MSG_RESULT(failed)
1677 Could not execute a simple test program. This may be a problem
1678 related to locating shared libraries. Check the file 'config.log'
1679 for the exact reason.]])],
1680 [AC_MSG_RESULT([cross-compiling])])
1682 # --------------------
1683 # Run tests below here
1684 # --------------------
1686 # Force use of our snprintf if system's doesn't do arg control
1687 # See comment above at snprintf test for details.
1688 if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then
1689 PGAC_FUNC_SNPRINTF_ARG_CONTROL
1690 if test $pgac_cv_snprintf_arg_control != yes ; then
1691 pgac_need_repl_snprintf=yes
1696 dnl Check to see if we have a working 64-bit integer type.
1697 dnl This breaks down into two steps:
1698 dnl (1) figure out if the compiler has a 64-bit int type with working
1699 dnl arithmetic, and if so
1700 dnl (2) see whether snprintf() can format the type correctly. (Currently,
1701 dnl snprintf is the only library routine we really need for int8 support.)
1702 dnl It's entirely possible to have a compiler that handles a 64-bit type
1703 dnl when the C library doesn't; this is fairly likely when using gcc on
1704 dnl an older platform, for example.
1705 dnl If there is no native snprintf() or it does not handle the 64-bit type,
1706 dnl we force our own version of snprintf() to be used instead.
1707 dnl Note this test must be run after our initial check for snprintf/vsnprintf.
1709 dnl As of Postgres 8.4, we no longer support compilers without a working
1710 dnl 64-bit type. But we still handle the case of snprintf being broken.
1712 PGAC_TYPE_64BIT_INT([long int])
1714 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1715 pg_int64_type="long int"
1717 PGAC_TYPE_64BIT_INT([long long int])
1718 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1719 pg_int64_type="long long int"
1721 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1725 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1726 [Define to the name of a signed 64-bit integer type.])
1728 # If we found "long int" is 64 bits, assume snprintf handles it. If
1729 # we found we need to use "long long int", better check. We cope with
1730 # snprintfs that use %lld, %qd, or %I64d as the format. If none of these
1731 # work, fall back to our own snprintf emulation (which we know uses %lld).
1733 if test "$HAVE_LONG_LONG_INT_64" = yes ; then
1734 if test $pgac_need_repl_snprintf = no; then
1735 PGAC_FUNC_SNPRINTF_LONG_LONG_INT_MODIFIER
1736 if test "$LONG_LONG_INT_MODIFIER" = ""; then
1737 # Force usage of our own snprintf, since system snprintf is broken
1738 pgac_need_repl_snprintf=yes
1739 LONG_LONG_INT_MODIFIER='ll'
1742 # Here if we previously decided we needed to use our own snprintf
1743 LONG_LONG_INT_MODIFIER='ll'
1746 # Here if we are not using 'long long int' at all
1747 LONG_LONG_INT_MODIFIER='l'
1750 INT64_MODIFIER="\"$LONG_LONG_INT_MODIFIER\""
1752 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1753 [Define to the appropriate snprintf length modifier for 64-bit ints.])
1755 # Also force use of our snprintf if the system's doesn't support the %z flag.
1756 if test "$pgac_need_repl_snprintf" = no; then
1757 PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
1758 if test "$pgac_cv_snprintf_size_t_support" != yes; then
1759 pgac_need_repl_snprintf=yes
1763 # Now we have checked all the reasons to replace snprintf
1764 if test $pgac_need_repl_snprintf = yes; then
1765 AC_DEFINE(USE_REPL_SNPRINTF, 1, [Use replacement snprintf() functions.])
1769 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1770 AC_CHECK_SIZEOF([void *])
1771 AC_CHECK_SIZEOF([size_t])
1772 AC_CHECK_SIZEOF([long])
1774 # Decide whether float4 is passed by value: user-selectable, enabled by default
1775 AC_MSG_CHECKING([whether to build with float4 passed by value])
1776 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1777 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1778 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1779 float4passbyval=true],
1780 [float4passbyval=false])
1781 AC_MSG_RESULT([$enable_float4_byval])
1782 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1784 # Decide whether float8 is passed by value.
1785 # Note: this setting also controls int8 and related types such as timestamp.
1786 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1787 # If not, trying to select it is an error.
1788 AC_MSG_CHECKING([whether to build with float8 passed by value])
1789 if test $ac_cv_sizeof_void_p -ge 8 ; then
1790 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1792 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1793 if test "$enable_float8_byval" = yes ; then
1794 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1797 if test "$enable_float8_byval" = yes ; then
1798 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1799 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1800 float8passbyval=true
1802 float8passbyval=false
1804 AC_MSG_RESULT([$enable_float8_byval])
1805 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1807 # Determine memory alignment requirements for the basic C data types.
1809 AC_CHECK_ALIGNOF(short)
1810 AC_CHECK_ALIGNOF(int)
1811 AC_CHECK_ALIGNOF(long)
1812 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1813 AC_CHECK_ALIGNOF(long long int)
1815 AC_CHECK_ALIGNOF(double)
1817 # Compute maximum alignment of any basic type.
1818 # We assume long's alignment is at least as strong as char, short, or int;
1819 # but we must check long long (if it exists) and double.
1821 MAX_ALIGNOF=$ac_cv_alignof_long
1822 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1823 MAX_ALIGNOF=$ac_cv_alignof_double
1825 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1826 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1828 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1831 # Some platforms predefine the types int8, int16, etc. Only check
1832 # a (hopefully) representative subset.
1833 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1834 [#include <stdio.h>])
1836 # Check for extensions offering the integer scalar type __int128.
1837 PGAC_TYPE_128BIT_INT
1839 # Check for various atomic operations now that we have checked how to declare
1841 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1842 PGAC_HAVE_GCC__SYNC_INT32_TAS
1843 PGAC_HAVE_GCC__SYNC_INT32_CAS
1844 PGAC_HAVE_GCC__SYNC_INT64_CAS
1845 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1846 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1849 # Check for x86 cpuid instruction
1850 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1851 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1852 [[unsigned int exx[4] = {0, 0, 0, 0};
1853 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1855 [pgac_cv__get_cpuid="yes"],
1856 [pgac_cv__get_cpuid="no"])])
1857 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1858 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1861 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1862 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
1863 [[unsigned int exx[4] = {0, 0, 0, 0};
1864 __get_cpuid(exx[0], 1);
1866 [pgac_cv__cpuid="yes"],
1867 [pgac_cv__cpuid="no"])])
1868 if test x"$pgac_cv__cpuid" = x"yes"; then
1869 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
1872 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
1874 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
1875 # with the default compiler flags. If not, check if adding the -msse4.2
1876 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
1877 PGAC_SSE42_CRC32_INTRINSICS([])
1878 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
1879 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
1881 AC_SUBST(CFLAGS_SSE42)
1883 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
1884 # define __SSE4_2__ in that case.
1885 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
1887 #error __SSE4_2__ not defined
1889 ])], [SSE4_2_TARGETED=1])
1891 # Select CRC-32C implementation.
1893 # If we are targeting a processor that has SSE 4.2 instructions, we can use the
1894 # special CRC instructions for calculating CRC-32C. If we're not targeting such
1895 # a processor, but we can nevertheless produce code that uses the SSE
1896 # intrinsics, perhaps with some extra CFLAGS, compile both implementations and
1897 # select which one to use at runtime, depending on whether SSE 4.2 is supported
1898 # by the processor we're running on.
1900 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
1901 # in the template or configure command line.
1902 if test x"$USE_SSE42_CRC32C" = x"" && test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"" && test x"$USE_SLICING_BY_8_CRC32C" = x""; then
1903 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
1906 # the CPUID instruction is needed for the runtime check.
1907 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
1908 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
1910 # fall back to slicing-by-8 algorithm which doesn't require any special
1912 USE_SLICING_BY_8_CRC32C=1
1917 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
1918 AC_MSG_CHECKING([which CRC-32C implementation to use])
1919 if test x"$USE_SSE42_CRC32C" = x"1"; then
1920 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
1921 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
1922 AC_MSG_RESULT(SSE 4.2)
1924 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
1925 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSSE 4.2 CRC instructions with a runtime check.])
1926 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_choose.o"
1927 AC_MSG_RESULT(SSE 4.2 with runtime check)
1929 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
1930 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
1931 AC_MSG_RESULT(slicing-by-8)
1934 AC_SUBST(PG_CRC32C_OBJS)
1937 # Select semaphore implementation type.
1938 if test "$PORTNAME" != "win32"; then
1939 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
1940 # Need sem_open for this
1941 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
1943 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
1944 # Need sem_init for this
1945 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
1947 AC_MSG_CHECKING([which semaphore API to use])
1948 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
1949 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
1950 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
1951 sematype="named POSIX"
1953 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
1954 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
1955 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
1956 sematype="unnamed POSIX"
1958 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
1959 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
1963 AC_MSG_RESULT([$sematype])
1965 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
1966 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
1970 # Select shared-memory implementation type.
1971 if test "$PORTNAME" != "win32"; then
1972 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
1973 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
1975 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
1976 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
1979 # Select random number source
1981 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
1982 # in the template or configure command line.
1984 # If not selected manually, try to select a source automatically.
1985 if test "$enable_strong_random" = "yes" && test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
1986 if test x"$with_openssl" = x"yes" ; then
1987 USE_OPENSSL_RANDOM=1
1988 elif test "$PORTNAME" = "win32" ; then
1991 AC_CHECK_FILE([/dev/urandom], [], [])
1993 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
1999 AC_MSG_CHECKING([which random number source to use])
2000 if test "$enable_strong_random" = yes ; then
2001 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2002 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2003 AC_MSG_RESULT([OpenSSL])
2004 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2005 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2006 AC_MSG_RESULT([Windows native])
2007 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2008 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2009 AC_MSG_RESULT([/dev/urandom])
2012 no source of strong random numbers was found
2013 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers,
2014 for authentication protocols. You can use --disable-strong-random to use a
2015 built-in pseudo random number generator, but that may be insecure.])
2017 AC_DEFINE(HAVE_STRONG_RANDOM, 1, [Define to use have a strong random number source])
2019 AC_MSG_RESULT([weak builtin PRNG])
2021 *** Not using a strong random number source may be insecure.])
2024 # If not set in template file, set bytes to use libc memset()
2025 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2026 MEMSET_LOOP_LIMIT=1024
2028 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2031 if test "$enable_nls" = yes ; then
2035 # Check for Tcl configuration script tclConfig.sh
2036 if test "$with_tcl" = yes; then
2037 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2038 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2039 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2040 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2041 if test "$TCL_SHARED_BUILD" != 1; then
2042 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2043 Use --without-tcl to disable building PL/Tcl.])
2045 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2046 ac_save_CPPFLAGS=$CPPFLAGS
2047 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2048 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2049 CPPFLAGS=$ac_save_CPPFLAGS
2052 # check for <perl.h>
2053 if test "$with_perl" = yes; then
2054 ac_save_CPPFLAGS=$CPPFLAGS
2055 CPPFLAGS="$CPPFLAGS -I$perl_archlibexp/CORE"
2056 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2057 [#include <EXTERN.h>])
2058 # While we're at it, check that we can link to libperl.
2059 # On most platforms, if perl.h is there then libperl.so will be too, but at
2060 # this writing Debian packages them separately. There is no known reason to
2061 # waste cycles on separate probes for the Tcl or Python libraries, though.
2062 pgac_save_LIBS=$LIBS
2063 LIBS="$perl_embed_ldflags"
2064 AC_MSG_CHECKING([for libperl])
2065 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2068 ], [perl_alloc();])],
2069 [AC_MSG_RESULT(yes)],
2071 AC_MSG_ERROR([libperl library is required for Perl])])
2072 LIBS=$pgac_save_LIBS
2073 CPPFLAGS=$ac_save_CPPFLAGS
2076 # check for <Python.h>
2077 if test "$with_python" = yes; then
2078 ac_save_CPPFLAGS=$CPPFLAGS
2079 CPPFLAGS="$python_includespec $CPPFLAGS"
2080 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2081 CPPFLAGS=$ac_save_CPPFLAGS
2085 # Check for DocBook and tools
2088 PGAC_CHECK_DOCBOOK(4.2)
2089 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2090 PGAC_PATH_PROGS(XMLLINT, xmllint)
2091 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2092 PGAC_PATH_PROGS(OSX, [osx sgml2xml sx])
2093 PGAC_PATH_PROGS(FOP, fop)
2096 # Check for test tools
2098 if test "$enable_tap_tests" = yes; then
2099 # Check for necessary modules, unless user has specified the "prove" to use;
2100 # in that case it's her responsibility to have a working configuration.
2101 # (prove might be part of a different Perl installation than perl, eg on
2102 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2103 if test -z "$PROVE"; then
2104 AX_PROG_PERL_MODULES(IPC::Run, ,
2105 AC_MSG_ERROR([Perl module IPC::Run is required to run TAP tests]))
2107 # Now make sure we know where prove is
2108 PGAC_PATH_PROGS(PROVE, prove)
2109 if test -z "$PROVE"; then
2110 AC_MSG_ERROR([prove not found])
2116 # We have to run the thread test near the end so we have all our symbols
2117 # defined. Cross compiling throws a warning.
2119 if test "$enable_thread_safety" = yes; then
2120 if test "$PORTNAME" != "win32"
2122 AC_MSG_CHECKING([thread safety of required library functions])
2126 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2127 LIBS="$LIBS $PTHREAD_LIBS"
2129 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2130 [AC_MSG_RESULT(yes)],
2132 AC_MSG_ERROR([thread test program failed
2133 This platform is not thread-safe. Check the file 'config.log' or compile
2134 and run src/test/thread/thread_test for the exact reason.
2135 Use --disable-thread-safety to disable thread safety.])],
2136 [AC_MSG_RESULT(maybe)
2138 *** Skipping thread test program because of cross-compile build.
2139 *** Run the program in src/test/thread on the target machine.
2144 AC_MSG_WARN([*** skipping thread test on Win32])
2148 # If compiler will take -Wl,--as-needed (or various platform-specific
2149 # spellings thereof) then add that to LDFLAGS. This is much easier than
2150 # trying to filter LIBS to the minimum for each executable.
2151 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2152 # libreadline; therefore we postpone testing it until we know what library
2153 # dependencies readline has. The test code will try to link with $LIBS.
2154 if test "$with_readline" = yes; then
2155 link_test_func=readline
2160 if test "$PORTNAME" = "darwin"; then
2161 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2162 elif test "$PORTNAME" = "openbsd"; then
2163 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2165 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2168 # Create compiler version string
2169 if test x"$GCC" = x"yes" ; then
2170 cc_string=`${CC} --version | sed q`
2171 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2172 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2173 cc_string=`${CC} -V 2>&1 | sed q`
2178 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2179 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2180 [A string containing the version number, platform, and C compiler])
2182 # Supply a numeric version string for use by 3rd party add-ons
2183 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2184 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2186 $AWK '{printf "%d%04d", $1, $2}'`"]
2187 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2188 AC_SUBST(PG_VERSION_NUM)
2191 # Begin output steps
2193 AC_MSG_NOTICE([using compiler=$cc_string])
2194 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2195 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2196 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2198 # prepare build tree if outside source tree
2199 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2200 # Note 2: /bin/pwd might be better than shell's built-in at getting
2201 # a symlink-free name.
2202 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2206 if test "$no_create" != yes; then
2207 _AS_ECHO_N([preparing build tree... ])
2208 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2209 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2210 || AC_MSG_ERROR(failed)
2214 AC_SUBST(vpath_build)
2217 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2220 src/backend/port/dynloader.c:src/backend/port/dynloader/${template}.c
2221 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2222 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2223 src/include/dynloader.h:src/backend/port/dynloader/${template}.h
2224 src/include/pg_config_os.h:src/include/port/${template}.h
2225 src/Makefile.port:src/makefiles/Makefile.${template}
2228 if test "$PORTNAME" = "win32"; then
2229 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2230 # Links sometimes fail undetected on Mingw -
2231 # so here we detect it and warn the user
2232 for FILE in $CONFIG_LINKS
2234 # test -e works for symlinks in the MinGW console
2235 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2240 AC_CONFIG_HEADERS([src/include/pg_config.h],
2242 # Update timestamp for pg_config.h (see Makefile.global)
2243 echo >src/include/stamp-h
2246 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2248 # Update timestamp for pg_config_ext.h (see Makefile.global)
2249 echo >src/include/stamp-ext-h
2252 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2253 [echo >src/interfaces/ecpg/include/stamp-h])