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 "$perl_useshrplib" != true; then
1042 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1043 You might have to rebuild your Perl installation. Refer to the
1044 documentation for details. Use --without-perl to disable building
1047 # On most platforms, archlibexp is also where the Perl include files live ...
1048 perl_includespec="-I$perl_archlibexp/CORE"
1049 # ... but on newer macOS versions, we must use -iwithsysroot to look
1051 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then
1052 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1053 perl_includespec="-iwithsysroot $perl_archlibexp/CORE"
1056 AC_SUBST(perl_includespec)dnl
1057 PGAC_CHECK_PERL_EMBED_CCFLAGS
1058 PGAC_CHECK_PERL_EMBED_LDFLAGS
1061 if test "$with_python" = yes; then
1063 PGAC_CHECK_PYTHON_EMBED_SETUP
1066 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1067 PGAC_PATH_PROGS(ZIC, zic)
1068 if test -z "$ZIC"; then
1070 When cross-compiling, either use the option --with-system-tzdata to use
1071 existing time-zone data, or set the environment variable ZIC to a zic
1072 program to use during the build.])
1079 # For each platform, we need to know about any special compile and link
1080 # libraries, and whether the normal C function names are thread-safe.
1081 # See the comment at the top of src/port/thread.c for more information.
1082 # WIN32 doesn't need the pthread tests; it always uses threads
1084 # These tests are run before the library-tests, because linking with the
1085 # other libraries can pull in the pthread functions as a side-effect. We
1086 # want to use the -pthread or similar flags directly, and not rely on
1087 # the side-effects of linking with some other library.
1089 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1090 # invocation below is the first one in the script, and autoconf generates
1091 # additional code for that, which must not be inside the if-block. AS_IF
1092 # knows how to do that.
1093 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1095 AX_PTHREAD # set thread flags
1097 # Some platforms use these, so just define them. They can't hurt if they
1098 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1099 # enables 5-arg getpwuid_r, among other things.
1100 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1102 # Check for *_r functions
1105 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1106 LIBS="$LIBS $PTHREAD_LIBS"
1108 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1109 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1111 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1113 # Do test here with the proper thread flags
1114 PGAC_FUNC_STRERROR_R_INT
1120 # do not use values from template file
1125 AC_SUBST(PTHREAD_CFLAGS)
1126 AC_SUBST(PTHREAD_LIBS)
1132 ## Most libraries are included only if they demonstrably provide a function
1133 ## we need, but libm is an exception: always include it, because there are
1134 ## too many compilers that play cute optimization games that will break
1135 ## probes for standard functions such as pow().
1138 AC_CHECK_LIB(m, main)
1139 AC_SEARCH_LIBS(setproctitle, util)
1140 AC_SEARCH_LIBS(dlopen, dl)
1141 AC_SEARCH_LIBS(socket, [socket ws2_32])
1142 AC_SEARCH_LIBS(shl_load, dld)
1143 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1144 AC_SEARCH_LIBS(crypt, crypt)
1145 AC_SEARCH_LIBS(shm_open, rt)
1146 AC_SEARCH_LIBS(shm_unlink, rt)
1147 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1149 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1150 # Required for thread_test.c on Solaris
1151 AC_SEARCH_LIBS(sched_yield, rt)
1152 # Required for thread_test.c on Solaris 2.5:
1153 # Other ports use it too (HP-UX) so test unconditionally
1154 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1156 AC_SEARCH_LIBS(shmget, cygipc)
1158 if test "$with_readline" = yes; then
1160 if test x"$pgac_cv_check_readline" = x"no"; then
1161 AC_MSG_ERROR([readline library not found
1162 If you have readline already installed, see config.log for details on the
1163 failure. It is possible the compiler isn't looking in the proper directory.
1164 Use --without-readline to disable readline support.])
1168 if test "$with_zlib" = yes; then
1169 AC_CHECK_LIB(z, inflate, [],
1170 [AC_MSG_ERROR([zlib library not found
1171 If you have zlib already installed, see config.log for details on the
1172 failure. It is possible the compiler isn't looking in the proper directory.
1173 Use --without-zlib to disable zlib support.])])
1176 if test "$enable_spinlocks" = yes; then
1177 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1180 *** Not using spinlocks will cause poor performance.])
1183 if test "$enable_atomics" = yes; then
1184 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1187 *** Not using atomic operations will cause poor performance.])
1190 if test "$with_gssapi" = yes ; then
1191 if test "$PORTNAME" != "win32"; then
1192 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1193 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1195 LIBS="$LIBS -lgssapi32"
1199 if test "$with_openssl" = yes ; then
1201 if test "$PORTNAME" != "win32"; then
1202 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1203 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1205 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1206 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1208 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1209 # Functions introduced in OpenSSL 1.1.0. We used to check for
1210 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1211 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1212 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1214 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1215 # OpenSSL versions before 1.1.0 required setting callback functions, for
1216 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1217 # function was removed.
1218 AC_CHECK_FUNCS([CRYPTO_lock])
1221 if test "$with_pam" = yes ; then
1222 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1225 if test "$with_libxml" = yes ; then
1226 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1229 if test "$with_libxslt" = yes ; then
1230 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1233 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1234 if test "$with_ldap" = yes ; then
1236 if test "$PORTNAME" != "win32"; then
1237 AC_CHECK_LIB(ldap, ldap_bind, [],
1238 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1240 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1241 if test "$enable_thread_safety" = yes; then
1242 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1243 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1244 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1245 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1246 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1248 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1250 AC_CHECK_FUNCS([ldap_initialize])
1252 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1253 LDAP_LIBS_FE="-lwldap32"
1254 LDAP_LIBS_BE="-lwldap32"
1258 AC_SUBST(LDAP_LIBS_FE)
1259 AC_SUBST(LDAP_LIBS_BE)
1261 # for contrib/sepgsql
1262 if test "$with_selinux" = yes; then
1263 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1264 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1267 # for contrib/uuid-ossp
1268 if test "$with_uuid" = bsd ; then
1269 # On BSD, the UUID functions are in libc
1270 AC_CHECK_FUNC(uuid_to_string,
1272 [AC_MSG_ERROR([BSD UUID functions are not present])])
1273 elif test "$with_uuid" = e2fs ; then
1274 # On macOS, the UUID functions are in libc
1275 AC_CHECK_FUNC(uuid_generate,
1277 [AC_CHECK_LIB(uuid, uuid_generate,
1278 [UUID_LIBS="-luuid"],
1279 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1280 elif test "$with_uuid" = ossp ; then
1281 AC_CHECK_LIB(ossp-uuid, uuid_export,
1282 [UUID_LIBS="-lossp-uuid"],
1283 [AC_CHECK_LIB(uuid, uuid_export,
1284 [UUID_LIBS="-luuid"],
1285 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1296 AC_CHECK_HEADERS(m4_normalize([
1325 # On BSD, test for net/if.h will fail unless sys/socket.h
1326 # is included first.
1327 AC_CHECK_HEADERS(net/if.h, [], [],
1328 [AC_INCLUDES_DEFAULT
1329 #include <sys/socket.h>
1332 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1333 # is included first.
1334 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1335 [AC_INCLUDES_DEFAULT
1336 #include <sys/param.h>
1339 # At least on IRIX, test for netinet/tcp.h will fail unless
1340 # netinet/in.h is included first.
1341 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1342 [AC_INCLUDES_DEFAULT
1343 #include <netinet/in.h>
1346 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1347 AC_CHECK_HEADERS(readline/readline.h, [],
1348 [AC_CHECK_HEADERS(readline.h, [],
1349 [AC_MSG_ERROR([readline header not found
1350 If you have readline already installed, see config.log for details on the
1351 failure. It is possible the compiler isn't looking in the proper directory.
1352 Use --without-readline to disable readline support.])])])
1353 AC_CHECK_HEADERS(readline/history.h, [],
1354 [AC_CHECK_HEADERS(history.h, [],
1355 [AC_MSG_ERROR([history header not found
1356 If you have readline already installed, see config.log for details on the
1357 failure. It is possible the compiler isn't looking in the proper directory.
1358 Use --without-readline to disable readline support.])])])
1361 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1362 # Some installations of libedit usurp /usr/include/readline/, which seems
1363 # bad practice, since in combined installations readline will have its headers
1364 # there. We might have to resort to AC_EGREP checks to make sure we found
1365 # the proper header...
1366 AC_CHECK_HEADERS(editline/readline.h, [],
1367 [AC_CHECK_HEADERS(readline.h, [],
1368 [AC_CHECK_HEADERS(readline/readline.h, [],
1369 [AC_MSG_ERROR([readline header not found
1370 If you have libedit already installed, see config.log for details on the
1371 failure. It is possible the compiler isn't looking in the proper directory.
1372 Use --without-readline to disable libedit support.])])])])
1373 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1374 # not be there at all. Hence, don't complain if not found. We must check
1375 # though, since in yet other versions it is an independent header.
1376 AC_CHECK_HEADERS(editline/history.h, [],
1377 [AC_CHECK_HEADERS(history.h, [],
1378 [AC_CHECK_HEADERS(readline/history.h)])])
1381 if test "$with_zlib" = yes; then
1382 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1383 If you have zlib already installed, see config.log for details on the
1384 failure. It is possible the compiler isn't looking in the proper directory.
1385 Use --without-zlib to disable zlib support.])])
1388 if test "$with_gssapi" = yes ; then
1389 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1390 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1393 if test "$with_openssl" = yes ; then
1394 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1395 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1398 if test "$with_pam" = yes ; then
1399 AC_CHECK_HEADERS(security/pam_appl.h, [],
1400 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1401 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1404 if test "$with_bsd_auth" = yes ; then
1405 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1408 if test "$with_systemd" = yes ; then
1409 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1412 if test "$with_libxml" = yes ; then
1413 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1416 if test "$with_libxslt" = yes ; then
1417 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1420 if test "$with_ldap" = yes ; then
1421 if test "$PORTNAME" != "win32"; then
1422 AC_CHECK_HEADERS(ldap.h, [],
1423 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1426 AC_CHECK_HEADERS(winldap.h, [],
1427 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1428 [AC_INCLUDES_DEFAULT
1429 #include <windows.h>
1434 if test "$with_bonjour" = yes ; then
1435 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1436 dnl At some point we might add something like
1437 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1438 dnl but right now, what that would mainly accomplish is to encourage
1439 dnl people to try to use the avahi implementation, which does not work.
1440 dnl If you want to use Apple's own Bonjour code on another platform,
1441 dnl just add -ldns_sd to LIBS manually.
1444 # for contrib/uuid-ossp
1445 if test "$with_uuid" = bsd ; then
1446 AC_CHECK_HEADERS(uuid.h,
1447 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1448 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1449 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1450 elif test "$with_uuid" = e2fs ; then
1451 AC_CHECK_HEADERS(uuid/uuid.h,
1452 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1453 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1454 [AC_CHECK_HEADERS(uuid.h,
1455 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1456 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1457 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1458 elif test "$with_uuid" = ossp ; then
1459 AC_CHECK_HEADERS(ossp/uuid.h,
1460 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1461 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1462 [AC_CHECK_HEADERS(uuid.h,
1463 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1464 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1465 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1468 if test "$PORTNAME" = "win32" ; then
1469 AC_CHECK_HEADERS(crtdefs.h)
1473 ## Types, structures, compiler characteristics
1476 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1479 PGAC_PRINTF_ARCHETYPE
1480 AC_C_FLEXIBLE_ARRAY_MEMBER
1482 PGAC_C_FUNCNAME_SUPPORT
1483 PGAC_C_STATIC_ASSERT
1485 PGAC_C_TYPES_COMPATIBLE
1486 PGAC_C_BUILTIN_BSWAP16
1487 PGAC_C_BUILTIN_BSWAP32
1488 PGAC_C_BUILTIN_BSWAP64
1489 PGAC_C_BUILTIN_CONSTANT_P
1490 PGAC_C_BUILTIN_UNREACHABLE
1491 PGAC_C_COMPUTED_GOTO
1492 PGAC_STRUCT_TIMEZONE
1494 PGAC_STRUCT_SOCKADDR_UN
1495 PGAC_STRUCT_SOCKADDR_STORAGE
1496 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1497 PGAC_STRUCT_ADDRINFO
1500 AC_TYPE_LONG_LONG_INT
1504 # MSVC doesn't cope well with defining restrict to __restrict, the
1505 # spelling it understands, because it conflicts with
1506 # __declspec(restrict). Therefore we define pg_restrict to the
1507 # appropriate definition, which presumably won't conflict.
1509 # Allow platforms with buggy compilers to force restrict to not be
1510 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1513 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1516 pg_restrict="$ac_cv_c_restrict"
1518 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1519 [Define to keyword to use for C99 restrict support, or to nothing if not
1522 AC_CHECK_TYPES([struct cmsgcred], [], [],
1523 [#include <sys/socket.h>
1524 #include <sys/param.h>
1525 #ifdef HAVE_SYS_UCRED_H
1526 #include <sys/ucred.h>
1529 AC_CHECK_TYPES([struct option], [], [],
1530 [#ifdef HAVE_GETOPT_H
1534 if test "$with_zlib" = yes; then
1535 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1536 # did not). While we could work around the lack of z_streamp, it
1537 # seems unwise to encourage people to use such old zlib versions...
1538 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1539 Use --without-zlib to disable zlib support.])],
1540 [#include <zlib.h>])
1543 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1546 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1547 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1548 [int a = 0; int *p = &a; int r;
1549 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1550 [pgac_cv_have_ppc_mutex_hint=yes],
1551 [pgac_cv_have_ppc_mutex_hint=no])
1552 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1553 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1554 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1559 # Check largefile support. You might think this is a system service not a
1560 # compiler characteristic, but you'd be wrong. We must check this before
1561 # probing existence of related functions such as fseeko, since the largefile
1562 # defines can affect what is generated for that.
1563 if test "$PORTNAME" != "win32"; then
1565 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1566 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1567 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1568 dnl versions where the feature actually works, it's on by default anyway.
1569 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1572 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1573 AC_CHECK_SIZEOF([off_t])
1575 # If we don't have largefile support, can't handle segsize >= 2GB.
1576 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1577 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1580 AC_CHECK_SIZEOF([bool], [],
1581 [#ifdef HAVE_STDBOOL_H
1582 #include <stdbool.h>
1587 ## Functions, global variables
1590 PGAC_VAR_INT_TIMEZONE
1591 AC_FUNC_ACCEPT_ARGTYPES
1592 PGAC_FUNC_GETTIMEOFDAY_1ARG
1593 PGAC_FUNC_WCSTOMBS_L
1595 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1596 # symbols that that library has no business exposing to the world. Pending
1597 # acquisition of a clue by those developers, ignore libedit (including its
1598 # possible alias of libreadline) while checking for everything else.
1599 LIBS_including_readline="$LIBS"
1600 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1602 AC_CHECK_FUNCS(m4_normalize([
1615 pthread_is_threaded_np
1629 AC_REPLACE_FUNCS(fseeko)
1631 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1632 # Mingw uses macros to access Win32 API calls
1634 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1635 ac_cv_func_fseeko=yes;;
1640 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1641 # by calling it, 2009-04-02
1642 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1643 if test "$PORTNAME" != "solaris"; then
1644 AC_CHECK_FUNCS(posix_fadvise)
1645 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1648 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1649 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1650 # This is probably only present on macOS, but may as well check always
1651 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1653 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1656 AC_CHECK_TYPE([struct sockaddr_in6],
1657 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])
1660 [$ac_includes_default
1661 #include <netinet/in.h>])
1664 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1665 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1666 [#include <machine/vmparam.h>
1667 #include <sys/exec.h>
1669 [PS_STRINGS->ps_nargvstr = 1;
1670 PS_STRINGS->ps_argvstr = "foo";])],
1671 [pgac_cv_var_PS_STRINGS=yes],
1672 [pgac_cv_var_PS_STRINGS=no])])
1673 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1674 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1678 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1679 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1680 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1684 [return isinf(glob_double) ? 0 : 1;])],
1685 [ac_cv_func_isinf=yes],
1686 [ac_cv_func_isinf=no])])
1688 if test $ac_cv_func_isinf = yes ; then
1689 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1692 # Look for a way to implement a substitute for isinf()
1693 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1696 AC_REPLACE_FUNCS(m4_normalize([
1714 # Windows uses a specialised env handler
1715 # and doesn't need a replacement getpeereid because it doesn't use
1718 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1719 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1720 ac_cv_func_unsetenv=yes
1721 ac_cv_func_getpeereid=yes;;
1723 AC_REPLACE_FUNCS([unsetenv getpeereid])
1727 # System's version of getaddrinfo(), if any, may be used only if we found
1728 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1729 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1730 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1731 test "$PORTNAME" != "win32"; then
1732 AC_REPLACE_FUNCS([getaddrinfo])
1734 AC_LIBOBJ(getaddrinfo)
1737 # Similarly, use system's getopt_long() only if system provides struct option.
1738 if test x"$ac_cv_type_struct_option" = xyes ; then
1739 AC_REPLACE_FUNCS([getopt_long])
1741 AC_LIBOBJ(getopt_long)
1744 # Solaris' getopt() doesn't do what we want for long options, so always use
1745 # our version on that platform.
1746 if test "$PORTNAME" = "solaris"; then
1750 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1751 # so always use our version on Windows.
1752 if test "$PORTNAME" = "win32"; then
1754 AC_LIBOBJ(getopt_long)
1757 # Win32 (really MinGW) support
1758 if test "$PORTNAME" = "win32"; then
1759 AC_REPLACE_FUNCS(gettimeofday)
1765 AC_LIBOBJ(win32error)
1766 AC_LIBOBJ(win32security)
1767 AC_LIBOBJ(win32setlocale)
1768 AC_DEFINE([HAVE_SYMLINK], 1,
1769 [Define to 1 if you have the `symlink' function.])
1770 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1771 #define WIN32_LEAN_AND_MEAN
1772 #include <windows.h>
1774 #include <dbghelp.h>])
1776 if test x"$pgac_minidump_type" = x"yes" ; then
1777 AC_SUBST(have_win32_dbghelp,yes)
1779 AC_SUBST(have_win32_dbghelp,no)
1782 # Cygwin needs only a bit of that
1783 if test "$PORTNAME" = "cygwin"; then
1787 AC_CHECK_DECLS([sys_siglist], [], [],
1788 [#include <signal.h>
1789 /* NetBSD declares sys_siglist in unistd.h. */
1790 #ifdef HAVE_UNISTD_H
1791 # include <unistd.h>
1795 AC_CHECK_FUNC(syslog,
1796 [AC_CHECK_HEADER(syslog.h,
1797 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1799 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1800 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1801 [extern int opterr; opterr = 1;])],
1802 [pgac_cv_var_int_opterr=yes],
1803 [pgac_cv_var_int_opterr=no])])
1804 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1805 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1808 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1809 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1810 [extern int optreset; optreset = 1;])],
1811 [pgac_cv_var_int_optreset=yes],
1812 [pgac_cv_var_int_optreset=no])])
1813 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1814 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1817 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1818 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1819 # strto[u]ll may exist but not be declared
1820 AC_CHECK_DECLS([strtoll, strtoull])
1822 if test "$with_icu" = yes; then
1823 ac_save_CPPFLAGS=$CPPFLAGS
1824 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1826 # Verify we have ICU's header files
1827 AC_CHECK_HEADER(unicode/ucol.h, [],
1828 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1830 CPPFLAGS=$ac_save_CPPFLAGS
1833 # Lastly, restore full LIBS list and check for readline/libedit symbols
1834 LIBS="$LIBS_including_readline"
1836 if test "$with_readline" = yes; then
1837 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1838 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1839 AC_CHECK_FUNCS([append_history history_truncate_file])
1843 # This test makes sure that run tests work at all. Sometimes a shared
1844 # library is found by the linker, but the runtime linker can't find it.
1845 # This check should come after all modifications of compiler or linker
1846 # variables, and before any other run tests.
1847 AC_MSG_CHECKING([test program])
1848 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1849 [AC_MSG_RESULT(ok)],
1850 [AC_MSG_RESULT(failed)
1852 Could not execute a simple test program. This may be a problem
1853 related to locating shared libraries. Check the file 'config.log'
1854 for the exact reason.]])],
1855 [AC_MSG_RESULT([cross-compiling])])
1857 # --------------------
1858 # Run tests below here
1859 # --------------------
1861 dnl Check to see if we have a working 64-bit integer type.
1862 dnl Since Postgres 8.4, we no longer support compilers without a working
1863 dnl 64-bit type; but we have to determine whether that type is called
1864 dnl "long int" or "long long int".
1866 PGAC_TYPE_64BIT_INT([long int])
1868 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1869 pg_int64_type="long int"
1871 PGAC_TYPE_64BIT_INT([long long int])
1872 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1873 pg_int64_type="long long int"
1875 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1879 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1880 [Define to the name of a signed 64-bit integer type.])
1882 # Select the printf length modifier that goes with that, too.
1883 if test x"$pg_int64_type" = x"long long int" ; then
1884 INT64_MODIFIER='"ll"'
1886 INT64_MODIFIER='"l"'
1889 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1890 [Define to the appropriate printf length modifier for 64-bit ints.])
1892 # has to be down here, rather than with the other builtins, because
1893 # the test uses PG_INT64_TYPE.
1894 PGAC_C_BUILTIN_OP_OVERFLOW
1896 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1897 AC_CHECK_SIZEOF([void *])
1898 AC_CHECK_SIZEOF([size_t])
1899 AC_CHECK_SIZEOF([long])
1901 # Decide whether float4 is passed by value: user-selectable, enabled by default
1902 AC_MSG_CHECKING([whether to build with float4 passed by value])
1903 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1904 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1905 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1906 float4passbyval=true],
1907 [float4passbyval=false])
1908 AC_MSG_RESULT([$enable_float4_byval])
1909 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1911 # Decide whether float8 is passed by value.
1912 # Note: this setting also controls int8 and related types such as timestamp.
1913 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1914 # If not, trying to select it is an error.
1915 AC_MSG_CHECKING([whether to build with float8 passed by value])
1916 if test $ac_cv_sizeof_void_p -ge 8 ; then
1917 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1919 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1920 if test "$enable_float8_byval" = yes ; then
1921 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1924 if test "$enable_float8_byval" = yes ; then
1925 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1926 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1927 float8passbyval=true
1929 float8passbyval=false
1931 AC_MSG_RESULT([$enable_float8_byval])
1932 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1934 # Determine memory alignment requirements for the basic C data types.
1936 AC_CHECK_ALIGNOF(short)
1937 AC_CHECK_ALIGNOF(int)
1938 AC_CHECK_ALIGNOF(long)
1939 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1940 AC_CHECK_ALIGNOF(long long int)
1942 AC_CHECK_ALIGNOF(double)
1944 # Compute maximum alignment of any basic type.
1945 # We assume long's alignment is at least as strong as char, short, or int;
1946 # but we must check long long (if it is being used for int64) and double.
1947 # Note that we intentionally do not consider any types wider than 64 bits,
1948 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1949 # for disk and memory space.
1951 MAX_ALIGNOF=$ac_cv_alignof_long
1952 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1953 MAX_ALIGNOF=$ac_cv_alignof_double
1955 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1956 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1958 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1961 # Some platforms predefine the types int8, int16, etc. Only check
1962 # a (hopefully) representative subset.
1963 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1964 [#include <stdio.h>])
1966 # Some compilers offer a 128-bit integer scalar type.
1967 PGAC_TYPE_128BIT_INT
1969 # Check for various atomic operations now that we have checked how to declare
1971 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1972 PGAC_HAVE_GCC__SYNC_INT32_TAS
1973 PGAC_HAVE_GCC__SYNC_INT32_CAS
1974 PGAC_HAVE_GCC__SYNC_INT64_CAS
1975 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1976 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1979 # Check for x86 cpuid instruction
1980 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1981 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1982 [[unsigned int exx[4] = {0, 0, 0, 0};
1983 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1985 [pgac_cv__get_cpuid="yes"],
1986 [pgac_cv__get_cpuid="no"])])
1987 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1988 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1991 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1992 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
1993 [[unsigned int exx[4] = {0, 0, 0, 0};
1994 __get_cpuid(exx[0], 1);
1996 [pgac_cv__cpuid="yes"],
1997 [pgac_cv__cpuid="no"])])
1998 if test x"$pgac_cv__cpuid" = x"yes"; then
1999 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2002 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2004 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2005 # with the default compiler flags. If not, check if adding the -msse4.2
2006 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2007 PGAC_SSE42_CRC32_INTRINSICS([])
2008 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2009 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2011 AC_SUBST(CFLAGS_SSE42)
2013 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2014 # define __SSE4_2__ in that case.
2015 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2017 #error __SSE4_2__ not defined
2019 ])], [SSE4_2_TARGETED=1])
2021 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2023 # First check if __crc32c* intrinsics can be used with the default compiler
2024 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2025 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2026 PGAC_ARMV8_CRC32C_INTRINSICS([])
2027 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2028 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2030 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2032 # Select CRC-32C implementation.
2034 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2035 # use the special CRC instructions for calculating CRC-32C. If we're not
2036 # targeting such a processor, but we can nevertheless produce code that uses
2037 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2038 # implementations and select which one to use at runtime, depending on whether
2039 # SSE 4.2 is supported by the processor we're running on.
2041 # Similarly, if we are targeting an ARM processor that has the CRC
2042 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2043 # we're not targeting such a processor, but can nevertheless produce code that
2044 # uses the CRC instructions, compile both, and select at runtime.
2046 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2047 # in the template or configure command line.
2048 if test x"$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
2049 # Use Intel SSE 4.2 if available.
2050 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2053 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2054 # the runtime check.
2055 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2056 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2058 # Use ARM CRC Extension if available.
2059 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2062 # ARM CRC Extension, with runtime check?
2063 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2064 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2066 # fall back to slicing-by-8 algorithm, which doesn't require any
2067 # special CPU support.
2068 USE_SLICING_BY_8_CRC32C=1
2075 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2076 AC_MSG_CHECKING([which CRC-32C implementation to use])
2077 if test x"$USE_SSE42_CRC32C" = x"1"; then
2078 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2079 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2080 AC_MSG_RESULT(SSE 4.2)
2082 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2083 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2084 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2085 AC_MSG_RESULT(SSE 4.2 with runtime check)
2087 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2088 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2089 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2090 AC_MSG_RESULT(ARMv8 CRC instructions)
2092 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2093 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2094 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2095 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2097 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2098 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2099 AC_MSG_RESULT(slicing-by-8)
2104 AC_SUBST(PG_CRC32C_OBJS)
2107 # Select semaphore implementation type.
2108 if test "$PORTNAME" != "win32"; then
2109 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2110 # Need sem_open for this
2111 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2113 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2114 # Need sem_init for this
2115 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2117 AC_MSG_CHECKING([which semaphore API to use])
2118 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2119 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2120 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2121 sematype="named POSIX"
2123 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2124 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2125 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2126 sematype="unnamed POSIX"
2128 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2129 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2133 AC_MSG_RESULT([$sematype])
2135 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2136 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2140 # Select shared-memory implementation type.
2141 if test "$PORTNAME" != "win32"; then
2142 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2143 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2145 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2146 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2149 # Select random number source
2151 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2152 # in the template or configure command line.
2154 # If not selected manually, try to select a source automatically.
2155 if test "$enable_strong_random" = "yes" && test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2156 if test x"$with_openssl" = x"yes" ; then
2157 USE_OPENSSL_RANDOM=1
2158 elif test "$PORTNAME" = "win32" ; then
2161 AC_CHECK_FILE([/dev/urandom], [], [])
2163 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2169 AC_MSG_CHECKING([which random number source to use])
2170 if test "$enable_strong_random" = yes ; then
2171 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2172 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2173 AC_MSG_RESULT([OpenSSL])
2174 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2175 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2176 AC_MSG_RESULT([Windows native])
2177 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2178 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2179 AC_MSG_RESULT([/dev/urandom])
2182 no source of strong random numbers was found
2183 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers,
2184 for authentication protocols. You can use --disable-strong-random to use a
2185 built-in pseudo random number generator, but that may be insecure.])
2187 AC_DEFINE(HAVE_STRONG_RANDOM, 1, [Define to use have a strong random number source])
2189 AC_MSG_RESULT([weak builtin PRNG])
2191 *** Not using a strong random number source may be insecure.])
2194 # If not set in template file, set bytes to use libc memset()
2195 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2196 MEMSET_LOOP_LIMIT=1024
2198 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2201 if test "$enable_nls" = yes ; then
2205 # Check for Tcl configuration script tclConfig.sh
2206 if test "$with_tcl" = yes; then
2207 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2208 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2209 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2210 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2211 if test "$TCL_SHARED_BUILD" != 1; then
2212 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2213 Use --without-tcl to disable building PL/Tcl.])
2215 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2216 ac_save_CPPFLAGS=$CPPFLAGS
2217 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2218 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2219 CPPFLAGS=$ac_save_CPPFLAGS
2222 # check for <perl.h>
2223 if test "$with_perl" = yes; then
2224 ac_save_CPPFLAGS=$CPPFLAGS
2225 CPPFLAGS="$CPPFLAGS $perl_includespec"
2226 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2227 [#include <EXTERN.h>])
2228 # While we're at it, check that we can link to libperl.
2229 # On most platforms, if perl.h is there then libperl.so will be too, but at
2230 # this writing Debian packages them separately. There is no known reason to
2231 # waste cycles on separate probes for the Tcl or Python libraries, though.
2232 pgac_save_LIBS=$LIBS
2233 LIBS="$perl_embed_ldflags"
2234 AC_MSG_CHECKING([for libperl])
2235 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2238 ], [perl_alloc();])],
2239 [AC_MSG_RESULT(yes)],
2241 AC_MSG_ERROR([libperl library is required for Perl])])
2242 LIBS=$pgac_save_LIBS
2243 CPPFLAGS=$ac_save_CPPFLAGS
2246 # check for <Python.h>
2247 if test "$with_python" = yes; then
2248 ac_save_CPPFLAGS=$CPPFLAGS
2249 CPPFLAGS="$python_includespec $CPPFLAGS"
2250 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2251 CPPFLAGS=$ac_save_CPPFLAGS
2255 # Check for DocBook and tools
2258 PGAC_CHECK_DOCBOOK(4.2)
2259 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2260 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2261 PGAC_PATH_PROGS(FOP, fop)
2264 # Check for test tools
2266 if test "$enable_tap_tests" = yes; then
2267 # Check for necessary modules, unless user has specified the "prove" to use;
2268 # in that case it's her responsibility to have a working configuration.
2269 # (prove might be part of a different Perl installation than perl, eg on
2270 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2271 if test -z "$PROVE"; then
2272 # Test::More and Time::HiRes are supposed to be part of core Perl,
2273 # but some distros omit them in a minimal installation.
2274 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], ,
2275 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])])
2277 # Now make sure we know where prove is
2278 PGAC_PATH_PROGS(PROVE, prove)
2279 if test -z "$PROVE"; then
2280 AC_MSG_ERROR([prove not found])
2286 # We have to run the thread test near the end so we have all our symbols
2287 # defined. Cross compiling throws a warning.
2289 if test "$enable_thread_safety" = yes; then
2290 if test "$PORTNAME" != "win32"
2292 AC_MSG_CHECKING([thread safety of required library functions])
2296 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2297 LIBS="$LIBS $PTHREAD_LIBS"
2299 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2300 [AC_MSG_RESULT(yes)],
2302 AC_MSG_ERROR([thread test program failed
2303 This platform is not thread-safe. Check the file 'config.log' or compile
2304 and run src/test/thread/thread_test for the exact reason.
2305 Use --disable-thread-safety to disable thread safety.])],
2306 [AC_MSG_RESULT(maybe)
2308 *** Skipping thread test program because of cross-compile build.
2309 *** Run the program in src/test/thread on the target machine.
2314 AC_MSG_WARN([*** skipping thread test on Win32])
2318 # If compiler will take -Wl,--as-needed (or various platform-specific
2319 # spellings thereof) then add that to LDFLAGS. This is much easier than
2320 # trying to filter LIBS to the minimum for each executable.
2321 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2322 # libreadline; therefore we postpone testing it until we know what library
2323 # dependencies readline has. The test code will try to link with $LIBS.
2324 if test "$with_readline" = yes; then
2325 link_test_func=readline
2330 if test "$PORTNAME" = "darwin"; then
2331 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2332 elif test "$PORTNAME" = "openbsd"; then
2333 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2335 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2338 # Create compiler version string
2339 if test x"$GCC" = x"yes" ; then
2340 cc_string=`${CC} --version | sed q`
2341 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2342 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2343 cc_string=`${CC} -V 2>&1 | sed q`
2348 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2349 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2350 [A string containing the version number, platform, and C compiler])
2352 # Supply a numeric version string for use by 3rd party add-ons
2353 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2354 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2356 $AWK '{printf "%d%04d", $1, $2}'`"]
2357 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2358 AC_SUBST(PG_VERSION_NUM)
2361 # Begin output steps
2363 AC_MSG_NOTICE([using compiler=$cc_string])
2364 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2365 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2366 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2367 # Currently only used when LLVM is used
2368 if test "$with_llvm" = yes ; then
2369 AC_MSG_NOTICE([using CXX=$CXX])
2370 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2371 AC_MSG_NOTICE([using CLANG=$CLANG])
2372 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2373 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2376 # prepare build tree if outside source tree
2377 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2378 # Note 2: /bin/pwd might be better than shell's built-in at getting
2379 # a symlink-free name.
2380 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2384 if test "$no_create" != yes; then
2385 _AS_ECHO_N([preparing build tree... ])
2386 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2387 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2388 || AC_MSG_ERROR(failed)
2392 AC_SUBST(vpath_build)
2395 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2398 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2399 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2400 src/include/pg_config_os.h:src/include/port/${template}.h
2401 src/Makefile.port:src/makefiles/Makefile.${template}
2404 if test "$PORTNAME" = "win32"; then
2405 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2406 # Links sometimes fail undetected on Mingw -
2407 # so here we detect it and warn the user
2408 for FILE in $CONFIG_LINKS
2410 # test -e works for symlinks in the MinGW console
2411 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2416 AC_CONFIG_HEADERS([src/include/pg_config.h],
2418 # Update timestamp for pg_config.h (see Makefile.global)
2419 echo >src/include/stamp-h
2422 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2424 # Update timestamp for pg_config_ext.h (see Makefile.global)
2425 echo >src/include/stamp-ext-h
2428 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2429 [echo >src/interfaces/ecpg/include/stamp-h])