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], [12devel], [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"; pgac_cxx_list="g++ xlC";;
357 *) pgac_cc_list="gcc cc"; pgac_cxx_list="g++ c++";;
360 AC_PROG_CC([$pgac_cc_list])
363 # Error out if the compiler does not support C99, as the codebase
365 if test "$ac_cv_prog_cc_c99" = no; then
366 AC_MSG_ERROR([C compiler "$CC" does not support C99])
369 AC_PROG_CXX([$pgac_cxx_list])
371 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
372 # but has idiosyncrasies of its own. We assume icc will define
373 # __INTEL_COMPILER regardless of CFLAGS.
374 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER
376 @%:@endif])], [ICC=yes], [ICC=no])
378 # Check if it's Sun Studio compiler. We assume that
379 # __SUNPRO_C will be defined for Sun Studio compilers
380 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C
382 @%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
384 AC_SUBST(SUN_STUDIO_CC)
390 # Checked early because subsequent tests depend on it.
391 PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support],
392 [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])])
394 if test "$with_llvm" = yes ; then
405 . "$srcdir/src/template/$template" || exit
407 # C[XX]FLAGS are selected so:
408 # If the user specifies something in the environment, that is used.
409 # else: If the template file set something, that is used.
410 # else: If coverage was enabled, don't set anything.
411 # else: If the compiler is GCC, then we use -O2.
412 # else: If the compiler is something else, then we use -O, unless debugging.
414 if test "$ac_env_CFLAGS_set" = set; then
415 CFLAGS=$ac_env_CFLAGS_value
416 elif test "${CFLAGS+set}" = set; then
417 : # (keep what template set)
418 elif test "$enable_coverage" = yes; then
419 : # no optimization by default
420 elif test "$GCC" = yes; then
423 # if the user selected debug mode, don't use -O
424 if test "$enable_debug" != yes; then
429 if test "$ac_env_CXXFLAGS_set" = set; then
430 CXXFLAGS=$ac_env_CXXFLAGS_value
431 elif test "${CXXFLAGS+set}" = set; then
432 : # (keep what template set)
433 elif test "$enable_coverage" = yes; then
434 : # no optimization by default
435 elif test "$GCC" = yes; then
438 # if the user selected debug mode, don't use -O
439 if test "$enable_debug" != yes; then
444 # When generating bitcode (for inlining) we always want to use -O2
445 # even when --enable-debug is specified. The bitcode it's not going to
446 # be used for line-by-line debugging, and JIT inlining doesn't work
447 # without at least -O1 (otherwise clang will emit 'noinline'
448 # attributes everywhere), which is bad for testing. Still allow the
449 # environment to override if done explicitly.
450 if test "$ac_env_BITCODE_CFLAGS_set" = set; then
451 BITCODE_CFLAGS=$ac_env_BITCODE_CFLAGS_value
453 BITCODE_CFLAGS="-O2 $BITCODE_CFLAGS"
455 if test "$ac_env_BITCODE_CXXFLAGS_set" = set; then
456 BITCODE_CXXFLAGS=$ac_env_BITCODE_CXXFLAGS_value
458 BITCODE_CXXFLAGS="-O2 $BITCODE_CXXFLAGS"
461 # C[XX]FLAGS we determined above will be added back at the end
464 user_CXXFLAGS=$CXXFLAGS
466 user_BITCODE_CFLAGS=$BITCODE_CFLAGS
468 user_BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS
471 # set CFLAGS_VECTOR from the environment, if available
472 if test "$ac_env_CFLAGS_VECTOR_set" = set; then
473 CFLAGS_VECTOR=$ac_env_CFLAGS_VECTOR_value
476 # Some versions of GCC support some additional useful warning flags.
477 # Check whether they are supported, and add them to CFLAGS if so.
478 # ICC pretends to be GCC but it's lying; it doesn't support these flags,
479 # but has its own. Also check other compiler-specific flags here.
481 if test "$GCC" = yes -a "$ICC" = no; then
482 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith"
483 CXXFLAGS="-Wall -Wpointer-arith"
484 # These work in some but not all gcc versions
485 PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
486 # -Wdeclaration-after-statement isn't applicable for C++
487 # Really don't want VLAs to be used in our dialect of C
488 PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
489 # -Wvla is not applicable for C++
490 PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
491 PGAC_PROG_CXX_CFLAGS_OPT([-Wendif-labels])
492 PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
493 PGAC_PROG_CXX_CFLAGS_OPT([-Wmissing-format-attribute])
494 # This was included in -Wall/-Wformat in older GCC versions
495 PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
496 PGAC_PROG_CXX_CFLAGS_OPT([-Wformat-security])
497 # Disable strict-aliasing rules; needed for gcc 3.3+
498 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
499 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
500 # Disable optimizations that assume no overflow; needed for gcc 4.3+
501 PGAC_PROG_CC_CFLAGS_OPT([-fwrapv])
502 PGAC_PROG_CXX_CFLAGS_OPT([-fwrapv])
503 # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+
504 PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard])
505 PGAC_PROG_CXX_CFLAGS_OPT([-fexcess-precision=standard])
506 # Optimization flags for specific files that benefit from vectorization
507 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-funroll-loops])
508 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-ftree-vectorize])
509 # We want to suppress clang's unhelpful unused-command-line-argument warnings
510 # but gcc won't complain about unrecognized -Wno-foo switches, so we have to
511 # test for the positive form and if that works, add the negative form
513 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument])
514 if test -n "$NOT_THE_CFLAGS"; then
515 CFLAGS="$CFLAGS -Wno-unused-command-line-argument"
517 # Similarly disable useless truncation warnings from gcc 8+
519 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation])
520 if test -n "$NOT_THE_CFLAGS"; then
521 CFLAGS="$CFLAGS -Wno-format-truncation"
524 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation])
525 if test -n "$NOT_THE_CFLAGS"; then
526 CFLAGS="$CFLAGS -Wno-stringop-truncation"
528 elif test "$ICC" = yes; then
529 # Intel's compiler has a bug/misoptimization in checking for
530 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
531 PGAC_PROG_CC_CFLAGS_OPT([-mp1])
532 PGAC_PROG_CXX_CFLAGS_OPT([-mp1])
533 # Make sure strict aliasing is off (though this is said to be the default)
534 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
535 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
536 elif test "$PORTNAME" = "aix"; then
537 # AIX's xlc has to have strict aliasing turned off too
538 PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
539 PGAC_PROG_CXX_CFLAGS_OPT([-qnoansialias])
540 PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
541 PGAC_PROG_CXX_CFLAGS_OPT([-qlonglong])
542 elif test "$PORTNAME" = "hpux"; then
543 # On some versions of HP-UX, libm functions do not set errno by default.
544 # Fix that by using +Olibmerrno if the compiler recognizes it.
545 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno])
546 PGAC_PROG_CXX_CFLAGS_OPT([+Olibmerrno])
549 AC_SUBST(CFLAGS_VECTOR, $CFLAGS_VECTOR)
551 # Determine flags used to emit bitcode for JIT inlining. Need to test
552 # for behaviour changing compiler flags, to keep compatibility with
553 # compiler used for normal postgres code.
554 if test "$with_llvm" = yes ; then
555 CLANGXX="$CLANG -xc++"
557 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing])
558 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing])
559 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv])
560 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv])
561 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard])
562 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard])
565 # supply -g if --enable-debug
566 if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then
570 if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then
571 CXXFLAGS="$CXXFLAGS -g"
574 # enable code coverage if --enable-coverage
575 if test "$enable_coverage" = yes; then
576 if test "$GCC" = yes; then
577 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
578 CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
580 AC_MSG_ERROR([--enable-coverage is supported only when using GCC])
584 # enable profiling if --enable-profiling
585 if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then
586 if test "$GCC" = yes; then
587 AC_DEFINE([PROFILE_PID_DIR], 1,
588 [Define to 1 to allow profiling output to be saved separately for each process.])
589 CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS"
590 CXXFLAGS="$CXXFLAGS -pg $PLATFORM_PROFILE_FLAGS"
592 AC_MSG_ERROR([--enable-profiling is supported only when using GCC])
596 # We already have this in Makefile.win32, but configure needs it too
597 if test "$PORTNAME" = "win32"; then
598 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND"
601 # Now that we're done automatically adding stuff to C[XX]FLAGS, put back the
602 # user-specified flags (if any) at the end. This lets users override
603 # the automatic additions.
604 CFLAGS="$CFLAGS $user_CFLAGS"
605 CXXFLAGS="$CXXFLAGS $user_CXXFLAGS"
606 BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS"
607 BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS"
609 AC_SUBST(BITCODE_CFLAGS, $BITCODE_CFLAGS)
610 AC_SUBST(BITCODE_CXXFLAGS, $BITCODE_CXXFLAGS)
612 # Check if the compiler still works with the final flag settings
613 # (note, we're not checking that for CXX, which is optional)
614 AC_MSG_CHECKING([whether the C compiler still works])
615 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
616 [AC_MSG_RESULT(yes)],
618 AC_MSG_ERROR([cannot proceed])])
620 # Defend against gcc -ffast-math
621 if test "$GCC" = yes; then
622 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
624 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
627 # Defend against clang being used on x86-32 without SSE2 enabled. As current
628 # versions of clang do not understand -fexcess-precision=standard, the use of
629 # x87 floating point operations leads to problems like isinf possibly returning
630 # false for a value that is infinite when converted from the 80bit register to
631 # the 8byte memory representation.
633 # Only perform the test if the compiler doesn't understand
634 # -fexcess-precision=standard, that way a potentially fixed compiler will work
636 if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then
637 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
638 @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__)
642 [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])])
650 # Set up TAS assembly code if needed; the template file has now had its
651 # chance to request this.
653 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
655 if test "$need_tas" = yes ; then
664 # Automatic dependency tracking
666 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
672 # Enable assert checks
674 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
675 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
676 [Define to 1 to build with assertion checks. (--enable-cassert)])])
680 # Include directories
683 IFS="${IFS}${PATH_SEPARATOR}"
684 # SRCH_INC comes from the template file
685 for dir in $with_includes $SRCH_INC; do
686 if test -d "$dir"; then
687 INCLUDES="$INCLUDES -I$dir"
689 AC_MSG_WARN([*** Include directory $dir does not exist.])
697 # Library directories
700 IFS="${IFS}${PATH_SEPARATOR}"
701 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
702 for dir in $LIBRARY_DIRS $SRCH_LIB; do
703 if test -d "$dir"; then
704 LIBDIRS="$LIBDIRS -L$dir"
706 AC_MSG_WARN([*** Library directory $dir does not exist.])
712 # Enable thread-safe client libraries
714 AC_MSG_CHECKING([allow thread-safe client libraries])
715 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
716 if test "$enable_thread_safety" = yes; then
717 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
718 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
720 AC_MSG_RESULT([$enable_thread_safety])
721 AC_SUBST(enable_thread_safety)
726 AC_MSG_CHECKING([whether to build with ICU support])
727 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
728 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
729 AC_MSG_RESULT([$with_icu])
732 if test "$with_icu" = yes; then
733 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
737 # Optionally build Tcl modules (PL/Tcl)
739 AC_MSG_CHECKING([whether to build with Tcl])
740 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
741 AC_MSG_RESULT([$with_tcl])
744 # We see if the path to the Tcl/Tk configuration scripts is specified.
745 # This will override the use of tclsh to find the paths to search.
747 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
750 # Optionally build Perl modules (PL/Perl)
752 AC_MSG_CHECKING([whether to build Perl modules])
753 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
754 AC_MSG_RESULT([$with_perl])
758 # Optionally build Python modules (PL/Python)
760 AC_MSG_CHECKING([whether to build Python modules])
761 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
762 AC_MSG_RESULT([$with_python])
763 AC_SUBST(with_python)
768 AC_MSG_CHECKING([whether to build with GSSAPI support])
769 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
771 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
772 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
774 AC_MSG_RESULT([$with_gssapi])
775 AC_SUBST(with_gssapi)
782 # Kerberos configuration parameters
784 PGAC_ARG_REQ(with, krb-srvnam,
785 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
787 [with_krb_srvnam="postgres"])
788 AC_SUBST(with_krb_srvnam)
789 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
790 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
796 AC_MSG_CHECKING([whether to build with PAM support])
797 PGAC_ARG_BOOL(with, pam, no,
798 [build with PAM support],
799 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
800 AC_MSG_RESULT([$with_pam])
806 AC_MSG_CHECKING([whether to build with BSD Authentication support])
807 PGAC_ARG_BOOL(with, bsd-auth, no,
808 [build with BSD Authentication support],
809 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
810 AC_MSG_RESULT([$with_bsd_auth])
816 AC_MSG_CHECKING([whether to build with LDAP support])
817 PGAC_ARG_BOOL(with, ldap, no,
818 [build with LDAP support],
819 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
820 AC_MSG_RESULT([$with_ldap])
827 AC_MSG_CHECKING([whether to build with Bonjour support])
828 PGAC_ARG_BOOL(with, bonjour, no,
829 [build with Bonjour support],
830 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
831 AC_MSG_RESULT([$with_bonjour])
837 AC_MSG_CHECKING([whether to build with OpenSSL support])
838 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
839 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
840 AC_MSG_RESULT([$with_openssl])
841 AC_SUBST(with_openssl)
846 AC_MSG_CHECKING([whether to build with SELinux support])
847 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
848 AC_SUBST(with_selinux)
849 AC_MSG_RESULT([$with_selinux])
854 AC_MSG_CHECKING([whether to build with systemd support])
855 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
856 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
857 AC_SUBST(with_systemd)
858 AC_MSG_RESULT([$with_systemd])
863 PGAC_ARG_BOOL(with, readline, yes,
864 [do not use GNU Readline nor BSD Libedit for editing])
865 # readline on MinGW has problems with backslashes in psql and other bugs.
866 # This is particularly a problem with non-US code pages.
867 # Therefore disable its use until we understand the cause. 2004-07-20
868 if test "$PORTNAME" = "win32"; then
869 if test "$with_readline" = yes; then
870 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
879 PGAC_ARG_BOOL(with, libedit-preferred, no,
880 [prefer BSD Libedit over GNU Readline])
886 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
887 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
888 # UUID library. More than one of these might be present on a given platform,
889 # so we make the user say which one she wants.
891 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
892 if test x"$with_uuid" = x"" ; then
895 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
896 if test "$with_ossp_uuid" = yes ; then
900 if test "$with_uuid" = bsd ; then
901 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
902 UUID_EXTRA_OBJS="md5.o sha1.o"
903 elif test "$with_uuid" = e2fs ; then
904 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
905 UUID_EXTRA_OBJS="md5.o sha1.o"
906 elif test "$with_uuid" = ossp ; then
907 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
909 elif test "$with_uuid" = no ; then
912 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
915 AC_SUBST(UUID_EXTRA_OBJS)
921 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
922 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
924 if test "$with_libxml" = yes ; then
925 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
926 if test -n "$XML2_CONFIG"; then
927 for pgac_option in `$XML2_CONFIG --cflags`; do
929 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
932 for pgac_option in `$XML2_CONFIG --libs`; do
934 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
940 AC_SUBST(with_libxml)
945 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
946 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
949 AC_SUBST(with_libxslt)
954 PGAC_ARG_REQ(with, system-tzdata,
955 [DIR], [use system time zone data in DIR])
956 AC_SUBST(with_system_tzdata)
961 PGAC_ARG_BOOL(with, zlib, yes,
969 # Assume system is ELF if it predefines __ELF__ as 1,
970 # otherwise believe host_os based default.
972 freebsd1*|freebsd2*) elf=no;;
973 freebsd3*|freebsd4*) elf=yes;;
982 [if test "X$elf" = "Xyes" ; then
993 CPPFLAGS="$CPPFLAGS $INCLUDES"
994 LDFLAGS="$LDFLAGS $LIBDIRS"
996 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
997 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
1001 AC_SUBST(with_gnu_ld)
1004 AC_CHECK_TOOL(AR, ar, ar)
1005 if test "$PORTNAME" = "win32"; then
1006 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
1007 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
1008 AC_CHECK_TOOL(WINDRES, windres, windres)
1012 # When Autoconf chooses install-sh as install program it tries to generate
1013 # a relative path to it in each makefile where it substitutes it. This clashes
1014 # with our Makefile.global concept. This workaround helps.
1016 *install-sh*) install_bin='';;
1017 *) install_bin=$INSTALL;;
1019 AC_SUBST(install_bin)
1021 PGAC_PATH_PROGS(TAR, tar)
1025 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
1026 # a relative path to it in each makefile where it substitutes it. This clashes
1027 # with our Makefile.global concept. This workaround helps.
1029 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
1036 if test "$with_perl" = yes; then
1037 if test -z "$PERL"; then
1038 AC_MSG_ERROR([Perl not found])
1040 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
1041 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
1042 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1043 You might have to rebuild your Perl installation. Refer to the
1044 documentation for details. Use --without-perl to disable building
1047 # On most platforms, archlibexp is also where the Perl include files live ...
1048 perl_includedir="$perl_archlibexp"
1049 # ... but on some macOS versions, we must look under $PG_SYSROOT instead
1050 if test x"$PG_SYSROOT" != x"" ; then
1051 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1052 perl_includedir="$PG_SYSROOT$perl_archlibexp"
1055 AC_SUBST(perl_includedir)dnl
1056 PGAC_CHECK_PERL_EMBED_CCFLAGS
1057 PGAC_CHECK_PERL_EMBED_LDFLAGS
1060 if test "$with_python" = yes; then
1062 PGAC_CHECK_PYTHON_EMBED_SETUP
1065 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1066 PGAC_PATH_PROGS(ZIC, zic)
1067 if test -z "$ZIC"; then
1069 When cross-compiling, either use the option --with-system-tzdata to use
1070 existing time-zone data, or set the environment variable ZIC to a zic
1071 program to use during the build.])
1078 # For each platform, we need to know about any special compile and link
1079 # libraries, and whether the normal C function names are thread-safe.
1080 # See the comment at the top of src/port/thread.c for more information.
1081 # WIN32 doesn't need the pthread tests; it always uses threads
1083 # These tests are run before the library-tests, because linking with the
1084 # other libraries can pull in the pthread functions as a side-effect. We
1085 # want to use the -pthread or similar flags directly, and not rely on
1086 # the side-effects of linking with some other library.
1088 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1089 # invocation below is the first one in the script, and autoconf generates
1090 # additional code for that, which must not be inside the if-block. AS_IF
1091 # knows how to do that.
1092 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1094 AX_PTHREAD # set thread flags
1096 # Some platforms use these, so just define them. They can't hurt if they
1097 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1098 # enables 5-arg getpwuid_r, among other things.
1099 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1101 # Check for *_r functions
1104 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1105 LIBS="$LIBS $PTHREAD_LIBS"
1107 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1108 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1110 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1112 # Do test here with the proper thread flags
1113 PGAC_FUNC_STRERROR_R_INT
1119 # do not use values from template file
1124 AC_SUBST(PTHREAD_CFLAGS)
1125 AC_SUBST(PTHREAD_LIBS)
1131 ## Most libraries are included only if they demonstrably provide a function
1132 ## we need, but libm is an exception: always include it, because there are
1133 ## too many compilers that play cute optimization games that will break
1134 ## probes for standard functions such as pow().
1137 AC_CHECK_LIB(m, main)
1138 AC_SEARCH_LIBS(setproctitle, util)
1139 AC_SEARCH_LIBS(dlopen, dl)
1140 AC_SEARCH_LIBS(socket, [socket ws2_32])
1141 AC_SEARCH_LIBS(shl_load, dld)
1142 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1143 AC_SEARCH_LIBS(crypt, crypt)
1144 AC_SEARCH_LIBS(shm_open, rt)
1145 AC_SEARCH_LIBS(shm_unlink, rt)
1146 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1148 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1149 # Required for thread_test.c on Solaris
1150 AC_SEARCH_LIBS(sched_yield, rt)
1151 # Required for thread_test.c on Solaris 2.5:
1152 # Other ports use it too (HP-UX) so test unconditionally
1153 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1155 AC_SEARCH_LIBS(shmget, cygipc)
1157 if test "$with_readline" = yes; then
1159 if test x"$pgac_cv_check_readline" = x"no"; then
1160 AC_MSG_ERROR([readline library not found
1161 If you have readline already installed, see config.log for details on the
1162 failure. It is possible the compiler isn't looking in the proper directory.
1163 Use --without-readline to disable readline support.])
1167 if test "$with_zlib" = yes; then
1168 AC_CHECK_LIB(z, inflate, [],
1169 [AC_MSG_ERROR([zlib library not found
1170 If you have zlib already installed, see config.log for details on the
1171 failure. It is possible the compiler isn't looking in the proper directory.
1172 Use --without-zlib to disable zlib support.])])
1175 if test "$enable_spinlocks" = yes; then
1176 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1179 *** Not using spinlocks will cause poor performance.])
1182 if test "$enable_atomics" = yes; then
1183 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1186 *** Not using atomic operations will cause poor performance.])
1189 if test "$with_gssapi" = yes ; then
1190 if test "$PORTNAME" != "win32"; then
1191 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1192 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1194 LIBS="$LIBS -lgssapi32"
1198 if test "$with_openssl" = yes ; then
1200 if test "$PORTNAME" != "win32"; then
1201 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1202 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1204 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1205 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1207 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1208 # Functions introduced in OpenSSL 1.1.0. We used to check for
1209 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1210 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1211 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1213 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1214 # OpenSSL versions before 1.1.0 required setting callback functions, for
1215 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1216 # function was removed.
1217 AC_CHECK_FUNCS([CRYPTO_lock])
1220 if test "$with_pam" = yes ; then
1221 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1224 if test "$with_libxml" = yes ; then
1225 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1228 if test "$with_libxslt" = yes ; then
1229 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1232 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1233 if test "$with_ldap" = yes ; then
1235 if test "$PORTNAME" != "win32"; then
1236 AC_CHECK_LIB(ldap, ldap_bind, [],
1237 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1239 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1240 if test "$enable_thread_safety" = yes; then
1241 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1242 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1243 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1244 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1245 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1247 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1249 AC_CHECK_FUNCS([ldap_initialize])
1251 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1252 LDAP_LIBS_FE="-lwldap32"
1253 LDAP_LIBS_BE="-lwldap32"
1257 AC_SUBST(LDAP_LIBS_FE)
1258 AC_SUBST(LDAP_LIBS_BE)
1260 # for contrib/sepgsql
1261 if test "$with_selinux" = yes; then
1262 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1263 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1266 # for contrib/uuid-ossp
1267 if test "$with_uuid" = bsd ; then
1268 # On BSD, the UUID functions are in libc
1269 AC_CHECK_FUNC(uuid_to_string,
1271 [AC_MSG_ERROR([BSD UUID functions are not present])])
1272 elif test "$with_uuid" = e2fs ; then
1273 # On macOS, the UUID functions are in libc
1274 AC_CHECK_FUNC(uuid_generate,
1276 [AC_CHECK_LIB(uuid, uuid_generate,
1277 [UUID_LIBS="-luuid"],
1278 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1279 elif test "$with_uuid" = ossp ; then
1280 AC_CHECK_LIB(ossp-uuid, uuid_export,
1281 [UUID_LIBS="-lossp-uuid"],
1282 [AC_CHECK_LIB(uuid, uuid_export,
1283 [UUID_LIBS="-luuid"],
1284 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1295 AC_CHECK_HEADERS(m4_normalize([
1324 # On BSD, test for net/if.h will fail unless sys/socket.h
1325 # is included first.
1326 AC_CHECK_HEADERS(net/if.h, [], [],
1327 [AC_INCLUDES_DEFAULT
1328 #include <sys/socket.h>
1331 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1332 # is included first.
1333 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1334 [AC_INCLUDES_DEFAULT
1335 #include <sys/param.h>
1338 # At least on IRIX, test for netinet/tcp.h will fail unless
1339 # netinet/in.h is included first.
1340 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1341 [AC_INCLUDES_DEFAULT
1342 #include <netinet/in.h>
1345 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1346 AC_CHECK_HEADERS(readline/readline.h, [],
1347 [AC_CHECK_HEADERS(readline.h, [],
1348 [AC_MSG_ERROR([readline header not found
1349 If you have readline already installed, see config.log for details on the
1350 failure. It is possible the compiler isn't looking in the proper directory.
1351 Use --without-readline to disable readline support.])])])
1352 AC_CHECK_HEADERS(readline/history.h, [],
1353 [AC_CHECK_HEADERS(history.h, [],
1354 [AC_MSG_ERROR([history header not found
1355 If you have readline already installed, see config.log for details on the
1356 failure. It is possible the compiler isn't looking in the proper directory.
1357 Use --without-readline to disable readline support.])])])
1360 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1361 # Some installations of libedit usurp /usr/include/readline/, which seems
1362 # bad practice, since in combined installations readline will have its headers
1363 # there. We might have to resort to AC_EGREP checks to make sure we found
1364 # the proper header...
1365 AC_CHECK_HEADERS(editline/readline.h, [],
1366 [AC_CHECK_HEADERS(readline.h, [],
1367 [AC_CHECK_HEADERS(readline/readline.h, [],
1368 [AC_MSG_ERROR([readline header not found
1369 If you have libedit already installed, see config.log for details on the
1370 failure. It is possible the compiler isn't looking in the proper directory.
1371 Use --without-readline to disable libedit support.])])])])
1372 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1373 # not be there at all. Hence, don't complain if not found. We must check
1374 # though, since in yet other versions it is an independent header.
1375 AC_CHECK_HEADERS(editline/history.h, [],
1376 [AC_CHECK_HEADERS(history.h, [],
1377 [AC_CHECK_HEADERS(readline/history.h)])])
1380 if test "$with_zlib" = yes; then
1381 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1382 If you have zlib already installed, see config.log for details on the
1383 failure. It is possible the compiler isn't looking in the proper directory.
1384 Use --without-zlib to disable zlib support.])])
1387 if test "$with_gssapi" = yes ; then
1388 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1389 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1392 if test "$with_openssl" = yes ; then
1393 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1394 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1397 if test "$with_pam" = yes ; then
1398 AC_CHECK_HEADERS(security/pam_appl.h, [],
1399 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1400 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1403 if test "$with_bsd_auth" = yes ; then
1404 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1407 if test "$with_systemd" = yes ; then
1408 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1411 if test "$with_libxml" = yes ; then
1412 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1415 if test "$with_libxslt" = yes ; then
1416 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1419 if test "$with_ldap" = yes ; then
1420 if test "$PORTNAME" != "win32"; then
1421 AC_CHECK_HEADERS(ldap.h, [],
1422 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1425 AC_CHECK_HEADERS(winldap.h, [],
1426 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1427 [AC_INCLUDES_DEFAULT
1428 #include <windows.h>
1433 if test "$with_bonjour" = yes ; then
1434 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1435 dnl At some point we might add something like
1436 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1437 dnl but right now, what that would mainly accomplish is to encourage
1438 dnl people to try to use the avahi implementation, which does not work.
1439 dnl If you want to use Apple's own Bonjour code on another platform,
1440 dnl just add -ldns_sd to LIBS manually.
1443 # for contrib/uuid-ossp
1444 if test "$with_uuid" = bsd ; then
1445 AC_CHECK_HEADERS(uuid.h,
1446 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1447 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1448 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1449 elif test "$with_uuid" = e2fs ; then
1450 AC_CHECK_HEADERS(uuid/uuid.h,
1451 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1452 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1453 [AC_CHECK_HEADERS(uuid.h,
1454 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1455 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1456 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1457 elif test "$with_uuid" = ossp ; then
1458 AC_CHECK_HEADERS(ossp/uuid.h,
1459 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1460 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1461 [AC_CHECK_HEADERS(uuid.h,
1462 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1463 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1464 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1467 if test "$PORTNAME" = "win32" ; then
1468 AC_CHECK_HEADERS(crtdefs.h)
1472 ## Types, structures, compiler characteristics
1475 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1478 PGAC_PRINTF_ARCHETYPE
1479 AC_C_FLEXIBLE_ARRAY_MEMBER
1481 PGAC_C_FUNCNAME_SUPPORT
1482 PGAC_C_STATIC_ASSERT
1484 PGAC_C_TYPES_COMPATIBLE
1485 PGAC_C_BUILTIN_BSWAP16
1486 PGAC_C_BUILTIN_BSWAP32
1487 PGAC_C_BUILTIN_BSWAP64
1488 PGAC_C_BUILTIN_CONSTANT_P
1489 PGAC_C_BUILTIN_UNREACHABLE
1490 PGAC_C_COMPUTED_GOTO
1491 PGAC_STRUCT_TIMEZONE
1493 PGAC_STRUCT_SOCKADDR_UN
1494 PGAC_STRUCT_SOCKADDR_STORAGE
1495 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1496 PGAC_STRUCT_ADDRINFO
1499 AC_TYPE_LONG_LONG_INT
1503 # MSVC doesn't cope well with defining restrict to __restrict, the
1504 # spelling it understands, because it conflicts with
1505 # __declspec(restrict). Therefore we define pg_restrict to the
1506 # appropriate definition, which presumably won't conflict.
1508 # Allow platforms with buggy compilers to force restrict to not be
1509 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1512 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1515 pg_restrict="$ac_cv_c_restrict"
1517 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1518 [Define to keyword to use for C99 restrict support, or to nothing if not
1521 AC_CHECK_TYPES([struct cmsgcred], [], [],
1522 [#include <sys/socket.h>
1523 #include <sys/param.h>
1524 #ifdef HAVE_SYS_UCRED_H
1525 #include <sys/ucred.h>
1528 AC_CHECK_TYPES([struct option], [], [],
1529 [#ifdef HAVE_GETOPT_H
1533 if test "$with_zlib" = yes; then
1534 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1535 # did not). While we could work around the lack of z_streamp, it
1536 # seems unwise to encourage people to use such old zlib versions...
1537 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1538 Use --without-zlib to disable zlib support.])],
1539 [#include <zlib.h>])
1542 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1545 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1547 [int a = 0; int *p = &a; int r;
1548 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1549 [pgac_cv_have_ppc_mutex_hint=yes],
1550 [pgac_cv_have_ppc_mutex_hint=no])
1551 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1552 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1553 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1558 # Check largefile support. You might think this is a system service not a
1559 # compiler characteristic, but you'd be wrong. We must check this before
1560 # probing existence of related functions such as fseeko, since the largefile
1561 # defines can affect what is generated for that.
1562 if test "$PORTNAME" != "win32"; then
1564 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1565 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1566 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1567 dnl versions where the feature actually works, it's on by default anyway.
1568 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1571 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1572 AC_CHECK_SIZEOF([off_t])
1574 # If we don't have largefile support, can't handle segsize >= 2GB.
1575 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1576 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1579 AC_CHECK_SIZEOF([bool], [],
1580 [#ifdef HAVE_STDBOOL_H
1581 #include <stdbool.h>
1586 ## Functions, global variables
1589 PGAC_VAR_INT_TIMEZONE
1590 AC_FUNC_ACCEPT_ARGTYPES
1591 PGAC_FUNC_GETTIMEOFDAY_1ARG
1592 PGAC_FUNC_WCSTOMBS_L
1594 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1595 # symbols that that library has no business exposing to the world. Pending
1596 # acquisition of a clue by those developers, ignore libedit (including its
1597 # possible alias of libreadline) while checking for everything else.
1598 LIBS_including_readline="$LIBS"
1599 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1601 AC_CHECK_FUNCS(m4_normalize([
1614 pthread_is_threaded_np
1628 AC_REPLACE_FUNCS(fseeko)
1630 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1631 # Mingw uses macros to access Win32 API calls
1633 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1634 ac_cv_func_fseeko=yes;;
1639 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1640 # by calling it, 2009-04-02
1641 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1642 if test "$PORTNAME" != "solaris"; then
1643 AC_CHECK_FUNCS(posix_fadvise)
1644 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1647 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1648 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1649 # This is probably only present on macOS, but may as well check always
1650 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1652 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1655 AC_CHECK_TYPE([struct sockaddr_in6],
1656 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])
1659 [$ac_includes_default
1660 #include <netinet/in.h>])
1663 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1664 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1665 [#include <machine/vmparam.h>
1666 #include <sys/exec.h>
1668 [PS_STRINGS->ps_nargvstr = 1;
1669 PS_STRINGS->ps_argvstr = "foo";])],
1670 [pgac_cv_var_PS_STRINGS=yes],
1671 [pgac_cv_var_PS_STRINGS=no])])
1672 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1673 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1677 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1678 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1679 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1683 [return isinf(glob_double) ? 0 : 1;])],
1684 [ac_cv_func_isinf=yes],
1685 [ac_cv_func_isinf=no])])
1687 if test $ac_cv_func_isinf = yes ; then
1688 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1691 # Look for a way to implement a substitute for isinf()
1692 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1695 AC_REPLACE_FUNCS(m4_normalize([
1713 # Windows uses a specialised env handler
1714 # and doesn't need a replacement getpeereid because it doesn't use
1717 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1718 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1719 ac_cv_func_unsetenv=yes
1720 ac_cv_func_getpeereid=yes;;
1722 AC_REPLACE_FUNCS([unsetenv getpeereid])
1726 # System's version of getaddrinfo(), if any, may be used only if we found
1727 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1728 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1729 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1730 test "$PORTNAME" != "win32"; then
1731 AC_REPLACE_FUNCS([getaddrinfo])
1733 AC_LIBOBJ(getaddrinfo)
1736 # Similarly, use system's getopt_long() only if system provides struct option.
1737 if test x"$ac_cv_type_struct_option" = xyes ; then
1738 AC_REPLACE_FUNCS([getopt_long])
1740 AC_LIBOBJ(getopt_long)
1743 # Solaris' getopt() doesn't do what we want for long options, so always use
1744 # our version on that platform.
1745 if test "$PORTNAME" = "solaris"; then
1749 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1750 # so always use our version on Windows.
1751 if test "$PORTNAME" = "win32"; then
1753 AC_LIBOBJ(getopt_long)
1756 # Win32 (really MinGW) support
1757 if test "$PORTNAME" = "win32"; then
1758 AC_REPLACE_FUNCS(gettimeofday)
1764 AC_LIBOBJ(win32error)
1765 AC_LIBOBJ(win32security)
1766 AC_LIBOBJ(win32setlocale)
1767 AC_DEFINE([HAVE_SYMLINK], 1,
1768 [Define to 1 if you have the `symlink' function.])
1769 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1770 #define WIN32_LEAN_AND_MEAN
1771 #include <windows.h>
1773 #include <dbghelp.h>])
1775 if test x"$pgac_minidump_type" = x"yes" ; then
1776 AC_SUBST(have_win32_dbghelp,yes)
1778 AC_SUBST(have_win32_dbghelp,no)
1781 # Cygwin needs only a bit of that
1782 if test "$PORTNAME" = "cygwin"; then
1786 AC_CHECK_DECLS([sys_siglist], [], [],
1787 [#include <signal.h>
1788 /* NetBSD declares sys_siglist in unistd.h. */
1789 #ifdef HAVE_UNISTD_H
1790 # include <unistd.h>
1794 AC_CHECK_FUNC(syslog,
1795 [AC_CHECK_HEADER(syslog.h,
1796 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1798 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1799 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1800 [extern int opterr; opterr = 1;])],
1801 [pgac_cv_var_int_opterr=yes],
1802 [pgac_cv_var_int_opterr=no])])
1803 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1804 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1807 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1808 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1809 [extern int optreset; optreset = 1;])],
1810 [pgac_cv_var_int_optreset=yes],
1811 [pgac_cv_var_int_optreset=no])])
1812 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1813 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1816 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1817 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1818 # strto[u]ll may exist but not be declared
1819 AC_CHECK_DECLS([strtoll, strtoull])
1821 if test "$with_icu" = yes; then
1822 ac_save_CPPFLAGS=$CPPFLAGS
1823 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1825 # Verify we have ICU's header files
1826 AC_CHECK_HEADER(unicode/ucol.h, [],
1827 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1829 CPPFLAGS=$ac_save_CPPFLAGS
1832 # Lastly, restore full LIBS list and check for readline/libedit symbols
1833 LIBS="$LIBS_including_readline"
1835 if test "$with_readline" = yes; then
1836 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1837 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1838 AC_CHECK_FUNCS([append_history history_truncate_file])
1842 # This test makes sure that run tests work at all. Sometimes a shared
1843 # library is found by the linker, but the runtime linker can't find it.
1844 # This check should come after all modifications of compiler or linker
1845 # variables, and before any other run tests.
1846 AC_MSG_CHECKING([test program])
1847 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1848 [AC_MSG_RESULT(ok)],
1849 [AC_MSG_RESULT(failed)
1851 Could not execute a simple test program. This may be a problem
1852 related to locating shared libraries. Check the file 'config.log'
1853 for the exact reason.]])],
1854 [AC_MSG_RESULT([cross-compiling])])
1856 # --------------------
1857 # Run tests below here
1858 # --------------------
1860 dnl Check to see if we have a working 64-bit integer type.
1861 dnl Since Postgres 8.4, we no longer support compilers without a working
1862 dnl 64-bit type; but we have to determine whether that type is called
1863 dnl "long int" or "long long int".
1865 PGAC_TYPE_64BIT_INT([long int])
1867 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1868 pg_int64_type="long int"
1870 PGAC_TYPE_64BIT_INT([long long int])
1871 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1872 pg_int64_type="long long int"
1874 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1878 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1879 [Define to the name of a signed 64-bit integer type.])
1881 # Select the printf length modifier that goes with that, too.
1882 if test x"$pg_int64_type" = x"long long int" ; then
1883 INT64_MODIFIER='"ll"'
1885 INT64_MODIFIER='"l"'
1888 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1889 [Define to the appropriate printf length modifier for 64-bit ints.])
1891 # has to be down here, rather than with the other builtins, because
1892 # the test uses PG_INT64_TYPE.
1893 PGAC_C_BUILTIN_OP_OVERFLOW
1895 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1896 AC_CHECK_SIZEOF([void *])
1897 AC_CHECK_SIZEOF([size_t])
1898 AC_CHECK_SIZEOF([long])
1900 # Decide whether float4 is passed by value: user-selectable, enabled by default
1901 AC_MSG_CHECKING([whether to build with float4 passed by value])
1902 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1903 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1904 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1905 float4passbyval=true],
1906 [float4passbyval=false])
1907 AC_MSG_RESULT([$enable_float4_byval])
1908 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1910 # Decide whether float8 is passed by value.
1911 # Note: this setting also controls int8 and related types such as timestamp.
1912 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1913 # If not, trying to select it is an error.
1914 AC_MSG_CHECKING([whether to build with float8 passed by value])
1915 if test $ac_cv_sizeof_void_p -ge 8 ; then
1916 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1918 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1919 if test "$enable_float8_byval" = yes ; then
1920 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1923 if test "$enable_float8_byval" = yes ; then
1924 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1925 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1926 float8passbyval=true
1928 float8passbyval=false
1930 AC_MSG_RESULT([$enable_float8_byval])
1931 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1933 # Determine memory alignment requirements for the basic C data types.
1935 AC_CHECK_ALIGNOF(short)
1936 AC_CHECK_ALIGNOF(int)
1937 AC_CHECK_ALIGNOF(long)
1938 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1939 AC_CHECK_ALIGNOF(long long int)
1941 AC_CHECK_ALIGNOF(double)
1943 # Compute maximum alignment of any basic type.
1944 # We assume long's alignment is at least as strong as char, short, or int;
1945 # but we must check long long (if it is being used for int64) and double.
1946 # Note that we intentionally do not consider any types wider than 64 bits,
1947 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1948 # for disk and memory space.
1950 MAX_ALIGNOF=$ac_cv_alignof_long
1951 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1952 MAX_ALIGNOF=$ac_cv_alignof_double
1954 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1955 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1957 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1960 # Some platforms predefine the types int8, int16, etc. Only check
1961 # a (hopefully) representative subset.
1962 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1963 [#include <stdio.h>])
1965 # Some compilers offer a 128-bit integer scalar type.
1966 PGAC_TYPE_128BIT_INT
1968 # Check for various atomic operations now that we have checked how to declare
1970 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1971 PGAC_HAVE_GCC__SYNC_INT32_TAS
1972 PGAC_HAVE_GCC__SYNC_INT32_CAS
1973 PGAC_HAVE_GCC__SYNC_INT64_CAS
1974 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1975 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1978 # Check for x86 cpuid instruction
1979 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1980 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1981 [[unsigned int exx[4] = {0, 0, 0, 0};
1982 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1984 [pgac_cv__get_cpuid="yes"],
1985 [pgac_cv__get_cpuid="no"])])
1986 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1987 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1990 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1991 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
1992 [[unsigned int exx[4] = {0, 0, 0, 0};
1993 __get_cpuid(exx[0], 1);
1995 [pgac_cv__cpuid="yes"],
1996 [pgac_cv__cpuid="no"])])
1997 if test x"$pgac_cv__cpuid" = x"yes"; then
1998 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2001 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2003 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2004 # with the default compiler flags. If not, check if adding the -msse4.2
2005 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2006 PGAC_SSE42_CRC32_INTRINSICS([])
2007 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2008 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2010 AC_SUBST(CFLAGS_SSE42)
2012 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2013 # define __SSE4_2__ in that case.
2014 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2016 #error __SSE4_2__ not defined
2018 ])], [SSE4_2_TARGETED=1])
2020 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2022 # First check if __crc32c* intrinsics can be used with the default compiler
2023 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2024 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2025 PGAC_ARMV8_CRC32C_INTRINSICS([])
2026 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2027 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2029 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2031 # Select CRC-32C implementation.
2033 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2034 # use the special CRC instructions for calculating CRC-32C. If we're not
2035 # targeting such a processor, but we can nevertheless produce code that uses
2036 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2037 # implementations and select which one to use at runtime, depending on whether
2038 # SSE 4.2 is supported by the processor we're running on.
2040 # Similarly, if we are targeting an ARM processor that has the CRC
2041 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2042 # we're not targeting such a processor, but can nevertheless produce code that
2043 # uses the CRC instructions, compile both, and select at runtime.
2045 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2046 # in the template or configure command line.
2047 if test x"$USE_SLICING_BY_8_CRC32C" = x"" && test x"$USE_SSE42_CRC32C" = x"" && test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"" && test x"$USE_ARMV8_CRC32C" = x"" && test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x""; then
2048 # Use Intel SSE 4.2 if available.
2049 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2052 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2053 # the runtime check.
2054 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2055 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2057 # Use ARM CRC Extension if available.
2058 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2061 # ARM CRC Extension, with runtime check?
2062 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2063 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2065 # fall back to slicing-by-8 algorithm, which doesn't require any
2066 # special CPU support.
2067 USE_SLICING_BY_8_CRC32C=1
2074 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2075 AC_MSG_CHECKING([which CRC-32C implementation to use])
2076 if test x"$USE_SSE42_CRC32C" = x"1"; then
2077 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2078 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2079 AC_MSG_RESULT(SSE 4.2)
2081 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2082 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2083 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2084 AC_MSG_RESULT(SSE 4.2 with runtime check)
2086 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2087 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2088 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2089 AC_MSG_RESULT(ARMv8 CRC instructions)
2091 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2092 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2093 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2094 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2096 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2097 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2098 AC_MSG_RESULT(slicing-by-8)
2103 AC_SUBST(PG_CRC32C_OBJS)
2106 # Select semaphore implementation type.
2107 if test "$PORTNAME" != "win32"; then
2108 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2109 # Need sem_open for this
2110 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2112 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2113 # Need sem_init for this
2114 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2116 AC_MSG_CHECKING([which semaphore API to use])
2117 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2118 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2119 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2120 sematype="named POSIX"
2122 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2123 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2124 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2125 sematype="unnamed POSIX"
2127 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2128 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2132 AC_MSG_RESULT([$sematype])
2134 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2135 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2139 # Select shared-memory implementation type.
2140 if test "$PORTNAME" != "win32"; then
2141 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2142 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2144 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2145 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2148 # Select random number source
2150 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2151 # in the template or configure command line.
2153 # If not selected manually, try to select a source automatically.
2154 if test "$enable_strong_random" = "yes" && test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2155 if test x"$with_openssl" = x"yes" ; then
2156 USE_OPENSSL_RANDOM=1
2157 elif test "$PORTNAME" = "win32" ; then
2160 AC_CHECK_FILE([/dev/urandom], [], [])
2162 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2168 AC_MSG_CHECKING([which random number source to use])
2169 if test "$enable_strong_random" = yes ; then
2170 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2171 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2172 AC_MSG_RESULT([OpenSSL])
2173 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2174 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2175 AC_MSG_RESULT([Windows native])
2176 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2177 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2178 AC_MSG_RESULT([/dev/urandom])
2181 no source of strong random numbers was found
2182 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers,
2183 for authentication protocols. You can use --disable-strong-random to use a
2184 built-in pseudo random number generator, but that may be insecure.])
2186 AC_DEFINE(HAVE_STRONG_RANDOM, 1, [Define to use have a strong random number source])
2188 AC_MSG_RESULT([weak builtin PRNG])
2190 *** Not using a strong random number source may be insecure.])
2193 # If not set in template file, set bytes to use libc memset()
2194 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2195 MEMSET_LOOP_LIMIT=1024
2197 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2200 if test "$enable_nls" = yes ; then
2204 # Check for Tcl configuration script tclConfig.sh
2205 if test "$with_tcl" = yes; then
2206 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2207 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2208 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2209 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2210 if test "$TCL_SHARED_BUILD" != 1; then
2211 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2212 Use --without-tcl to disable building PL/Tcl.])
2214 # Some macOS versions report an include spec that uses -iwithsysroot.
2215 # We don't really want to use -isysroot, so translate that if we can.
2216 if test x"$PG_SYSROOT" != x"" ; then
2217 TCL_INCLUDE_SPEC="`echo "$TCL_INCLUDE_SPEC" | sed "s|-iwithsysroot */|-I $PG_SYSROOT/|"`"
2219 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2220 ac_save_CPPFLAGS=$CPPFLAGS
2221 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2222 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2223 CPPFLAGS=$ac_save_CPPFLAGS
2226 # check for <perl.h>
2227 if test "$with_perl" = yes; then
2228 ac_save_CPPFLAGS=$CPPFLAGS
2229 CPPFLAGS="$CPPFLAGS -I$perl_includedir/CORE"
2230 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2231 [#include <EXTERN.h>])
2232 # While we're at it, check that we can link to libperl.
2233 # On most platforms, if perl.h is there then libperl.so will be too, but at
2234 # this writing Debian packages them separately. There is no known reason to
2235 # waste cycles on separate probes for the Tcl or Python libraries, though.
2236 pgac_save_LIBS=$LIBS
2237 LIBS="$perl_embed_ldflags"
2238 AC_MSG_CHECKING([for libperl])
2239 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2242 ], [perl_alloc();])],
2243 [AC_MSG_RESULT(yes)],
2245 AC_MSG_ERROR([libperl library is required for Perl])])
2246 LIBS=$pgac_save_LIBS
2247 CPPFLAGS=$ac_save_CPPFLAGS
2250 # check for <Python.h>
2251 if test "$with_python" = yes; then
2252 ac_save_CPPFLAGS=$CPPFLAGS
2253 CPPFLAGS="$python_includespec $CPPFLAGS"
2254 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2255 CPPFLAGS=$ac_save_CPPFLAGS
2259 # Check for DocBook and tools
2262 PGAC_CHECK_DOCBOOK(4.2)
2263 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2264 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2265 PGAC_PATH_PROGS(FOP, fop)
2268 # Check for test tools
2270 if test "$enable_tap_tests" = yes; then
2271 # Check for necessary modules, unless user has specified the "prove" to use;
2272 # in that case it's her responsibility to have a working configuration.
2273 # (prove might be part of a different Perl installation than perl, eg on
2274 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2275 if test -z "$PROVE"; then
2276 # Test::More and Time::HiRes are supposed to be part of core Perl,
2277 # but some distros omit them in a minimal installation.
2278 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], ,
2279 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])])
2281 # Now make sure we know where prove is
2282 PGAC_PATH_PROGS(PROVE, prove)
2283 if test -z "$PROVE"; then
2284 AC_MSG_ERROR([prove not found])
2290 # We have to run the thread test near the end so we have all our symbols
2291 # defined. Cross compiling throws a warning.
2293 if test "$enable_thread_safety" = yes; then
2294 if test "$PORTNAME" != "win32"
2296 AC_MSG_CHECKING([thread safety of required library functions])
2300 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2301 LIBS="$LIBS $PTHREAD_LIBS"
2303 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2304 [AC_MSG_RESULT(yes)],
2306 AC_MSG_ERROR([thread test program failed
2307 This platform is not thread-safe. Check the file 'config.log' or compile
2308 and run src/test/thread/thread_test for the exact reason.
2309 Use --disable-thread-safety to disable thread safety.])],
2310 [AC_MSG_RESULT(maybe)
2312 *** Skipping thread test program because of cross-compile build.
2313 *** Run the program in src/test/thread on the target machine.
2318 AC_MSG_WARN([*** skipping thread test on Win32])
2322 # If compiler will take -Wl,--as-needed (or various platform-specific
2323 # spellings thereof) then add that to LDFLAGS. This is much easier than
2324 # trying to filter LIBS to the minimum for each executable.
2325 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2326 # libreadline; therefore we postpone testing it until we know what library
2327 # dependencies readline has. The test code will try to link with $LIBS.
2328 if test "$with_readline" = yes; then
2329 link_test_func=readline
2334 if test "$PORTNAME" = "darwin"; then
2335 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2336 elif test "$PORTNAME" = "openbsd"; then
2337 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2339 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2342 # Create compiler version string
2343 if test x"$GCC" = x"yes" ; then
2344 cc_string=`${CC} --version | sed q`
2345 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2346 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2347 cc_string=`${CC} -V 2>&1 | sed q`
2352 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2353 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2354 [A string containing the version number, platform, and C compiler])
2356 # Supply a numeric version string for use by 3rd party add-ons
2357 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2358 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2360 $AWK '{printf "%d%04d", $1, $2}'`"]
2361 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2362 AC_SUBST(PG_VERSION_NUM)
2365 # Begin output steps
2367 AC_MSG_NOTICE([using compiler=$cc_string])
2368 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2369 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2370 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2371 # Currently only used when LLVM is used
2372 if test "$with_llvm" = yes ; then
2373 AC_MSG_NOTICE([using CXX=$CXX])
2374 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2375 AC_MSG_NOTICE([using CLANG=$CLANG])
2376 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2377 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2380 # prepare build tree if outside source tree
2381 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2382 # Note 2: /bin/pwd might be better than shell's built-in at getting
2383 # a symlink-free name.
2384 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2388 if test "$no_create" != yes; then
2389 _AS_ECHO_N([preparing build tree... ])
2390 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2391 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2392 || AC_MSG_ERROR(failed)
2396 AC_SUBST(vpath_build)
2399 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2402 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2403 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2404 src/include/pg_config_os.h:src/include/port/${template}.h
2405 src/Makefile.port:src/makefiles/Makefile.${template}
2408 if test "$PORTNAME" = "win32"; then
2409 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2410 # Links sometimes fail undetected on Mingw -
2411 # so here we detect it and warn the user
2412 for FILE in $CONFIG_LINKS
2414 # test -e works for symlinks in the MinGW console
2415 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2420 AC_CONFIG_HEADERS([src/include/pg_config.h],
2422 # Update timestamp for pg_config.h (see Makefile.global)
2423 echo >src/include/stamp-h
2426 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2428 # Update timestamp for pg_config_ext.h (see Makefile.global)
2429 echo >src/include/stamp-ext-h
2432 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2433 [echo >src/interfaces/ecpg/include/stamp-h])