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@lists.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) 1996-2019, 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@lists.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 # --enable-debug adds -g to compiler flags
199 PGAC_ARG_BOOL(enable, debug, no,
200 [build with debugging symbols (-g)])
201 AC_SUBST(enable_debug)
204 # --enable-profiling enables gcc profiling
206 PGAC_ARG_BOOL(enable, profiling, no,
207 [build with profiling enabled ])
210 # --enable-coverage enables generation of code coverage metrics with gcov
212 PGAC_ARG_BOOL(enable, coverage, no,
213 [build with coverage testing instrumentation],
214 [PGAC_PATH_PROGS(GCOV, gcov)
215 if test -z "$GCOV"; then
216 AC_MSG_ERROR([gcov not found])
218 PGAC_PATH_PROGS(LCOV, lcov)
219 if test -z "$LCOV"; then
220 AC_MSG_ERROR([lcov not found])
222 PGAC_PATH_PROGS(GENHTML, genhtml)
223 if test -z "$GENHTML"; then
224 AC_MSG_ERROR([genhtml not found])
226 AC_SUBST(enable_coverage)
231 PGAC_ARG_BOOL(enable, dtrace, no,
232 [build with DTrace support],
233 [PGAC_PATH_PROGS(DTRACE, dtrace)
234 if test -z "$DTRACE"; then
235 AC_MSG_ERROR([dtrace not found])
237 AC_SUBST(DTRACEFLAGS)])
238 AC_SUBST(enable_dtrace)
243 PGAC_ARG_BOOL(enable, tap-tests, no,
244 [enable TAP tests (requires Perl and IPC::Run)])
245 AC_SUBST(enable_tap_tests)
250 AC_MSG_CHECKING([for block size])
251 PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]],
252 [blocksize=$withval],
261 *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.])
263 AC_MSG_RESULT([${blocksize}kB])
265 AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [
266 Size of a disk block --- this also limits the size of a tuple. You
267 can set it bigger if you need bigger tuples (although TOAST should
268 reduce the need to have large tuples, since fields can be spread
269 across multiple tuples).
271 BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ
272 is currently 2^15 (32768). This is determined by the 15-bit widths
273 of the lp_off and lp_len fields in ItemIdData (see
274 include/storage/itemid.h).
276 Changing BLCKSZ requires an initdb.
280 # Relation segment size
282 AC_MSG_CHECKING([for segment size])
283 PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]],
286 # this expression is set up to avoid unnecessary integer overflow
287 # blocksize is already guaranteed to be a factor of 1024
288 RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024`
289 test $? -eq 0 || exit 1
290 AC_MSG_RESULT([${segsize}GB])
292 AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [
293 RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
294 Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
295 relations bigger than that are divided into multiple files.
297 RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size.
298 This is often 2 GB or 4GB in a 32-bit operating system, unless you
299 have large file support enabled. By default, we make the limit 1 GB
300 to avoid any possible integer-overflow problems within the OS.
301 A limit smaller than necessary only means we divide a large
302 relation into more chunks than necessary, so it seems best to err
303 in the direction of a small limit.
305 A power-of-2 value is recommended to save a few cycles in md.c,
306 but is not absolutely required.
308 Changing RELSEG_SIZE requires an initdb.
314 AC_MSG_CHECKING([for WAL block size])
315 PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]],
316 [wal_blocksize=$withval],
318 case ${wal_blocksize} in
319 1) XLOG_BLCKSZ=1024;;
320 2) XLOG_BLCKSZ=2048;;
321 4) XLOG_BLCKSZ=4096;;
322 8) XLOG_BLCKSZ=8192;;
323 16) XLOG_BLCKSZ=16384;;
324 32) XLOG_BLCKSZ=32768;;
325 64) XLOG_BLCKSZ=65536;;
326 *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.])
328 AC_MSG_RESULT([${wal_blocksize}kB])
330 AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [
331 Size of a WAL file block. This need have no particular relation to BLCKSZ.
332 XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O,
333 XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O
334 buffers, else direct I/O may fail.
336 Changing XLOG_BLCKSZ requires an initdb.
343 # For historical reasons you can also use --with-CC to specify the C compiler
344 # to use, although the standard way to do this is to set the CC environment
346 PGAC_ARG_REQ(with, CC, [CMD], [set compiler (deprecated)], [CC=$with_CC])
349 aix) pgac_cc_list="gcc xlc"; pgac_cxx_list="g++ xlC";;
350 *) pgac_cc_list="gcc cc"; pgac_cxx_list="g++ c++";;
353 AC_PROG_CC([$pgac_cc_list])
356 # Error out if the compiler does not support C99, as the codebase
358 if test "$ac_cv_prog_cc_c99" = no; then
359 AC_MSG_ERROR([C compiler "$CC" does not support C99])
362 AC_PROG_CXX([$pgac_cxx_list])
364 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
365 # but has idiosyncrasies of its own. We assume icc will define
366 # __INTEL_COMPILER regardless of CFLAGS.
367 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER
369 @%:@endif])], [ICC=yes], [ICC=no])
371 # Check if it's Sun Studio compiler. We assume that
372 # __SUNPRO_C will be defined for Sun Studio compilers
373 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C
375 @%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
377 AC_SUBST(SUN_STUDIO_CC)
383 # Checked early because subsequent tests depend on it.
384 PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support],
385 [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])])
387 dnl must use AS_IF here, else AC_REQUIRES inside PGAC_LLVM_SUPPORT malfunctions
388 AS_IF([test "$with_llvm" = yes], [
399 . "$srcdir/src/template/$template" || exit
401 # C[XX]FLAGS are selected so:
402 # If the user specifies something in the environment, that is used.
403 # else: If the template file set something, that is used.
404 # else: If coverage was enabled, don't set anything.
405 # else: If the compiler is GCC, then we use -O2.
406 # else: If the compiler is something else, then we use -O, unless debugging.
408 if test "$ac_env_CFLAGS_set" = set; then
409 CFLAGS=$ac_env_CFLAGS_value
410 elif test "${CFLAGS+set}" = set; then
411 : # (keep what template set)
412 elif test "$enable_coverage" = yes; then
413 : # no optimization by default
414 elif test "$GCC" = yes; then
417 # if the user selected debug mode, don't use -O
418 if test "$enable_debug" != yes; then
423 if test "$ac_env_CXXFLAGS_set" = set; then
424 CXXFLAGS=$ac_env_CXXFLAGS_value
425 elif test "${CXXFLAGS+set}" = set; then
426 : # (keep what template set)
427 elif test "$enable_coverage" = yes; then
428 : # no optimization by default
429 elif test "$GCC" = yes; then
432 # if the user selected debug mode, don't use -O
433 if test "$enable_debug" != yes; then
438 # When generating bitcode (for inlining) we always want to use -O2
439 # even when --enable-debug is specified. The bitcode it's not going to
440 # be used for line-by-line debugging, and JIT inlining doesn't work
441 # without at least -O1 (otherwise clang will emit 'noinline'
442 # attributes everywhere), which is bad for testing. Still allow the
443 # environment to override if done explicitly.
444 if test "$ac_env_BITCODE_CFLAGS_set" = set; then
445 BITCODE_CFLAGS=$ac_env_BITCODE_CFLAGS_value
447 BITCODE_CFLAGS="-O2 $BITCODE_CFLAGS"
449 if test "$ac_env_BITCODE_CXXFLAGS_set" = set; then
450 BITCODE_CXXFLAGS=$ac_env_BITCODE_CXXFLAGS_value
452 BITCODE_CXXFLAGS="-O2 $BITCODE_CXXFLAGS"
455 # C[XX]FLAGS we determined above will be added back at the end
458 user_CXXFLAGS=$CXXFLAGS
460 user_BITCODE_CFLAGS=$BITCODE_CFLAGS
462 user_BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS
465 # set CFLAGS_VECTOR from the environment, if available
466 if test "$ac_env_CFLAGS_VECTOR_set" = set; then
467 CFLAGS_VECTOR=$ac_env_CFLAGS_VECTOR_value
470 # Some versions of GCC support some additional useful warning flags.
471 # Check whether they are supported, and add them to CFLAGS if so.
472 # ICC pretends to be GCC but it's lying; it doesn't support these flags,
473 # but has its own. Also check other compiler-specific flags here.
475 if test "$GCC" = yes -a "$ICC" = no; then
476 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith"
477 CXXFLAGS="-Wall -Wpointer-arith"
478 # These work in some but not all gcc versions
479 PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
480 # -Wdeclaration-after-statement isn't applicable for C++
481 # Really don't want VLAs to be used in our dialect of C
482 PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
483 # -Wvla is not applicable for C++
484 PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
485 PGAC_PROG_CXX_CFLAGS_OPT([-Wendif-labels])
486 PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
487 PGAC_PROG_CXX_CFLAGS_OPT([-Wmissing-format-attribute])
488 # This was included in -Wall/-Wformat in older GCC versions
489 PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
490 PGAC_PROG_CXX_CFLAGS_OPT([-Wformat-security])
491 # Disable strict-aliasing rules; needed for gcc 3.3+
492 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
493 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
494 # Disable optimizations that assume no overflow; needed for gcc 4.3+
495 PGAC_PROG_CC_CFLAGS_OPT([-fwrapv])
496 PGAC_PROG_CXX_CFLAGS_OPT([-fwrapv])
497 # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+
498 PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard])
499 PGAC_PROG_CXX_CFLAGS_OPT([-fexcess-precision=standard])
500 # Optimization flags for specific files that benefit from vectorization
501 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-funroll-loops])
502 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-ftree-vectorize])
503 # We want to suppress clang's unhelpful unused-command-line-argument warnings
504 # but gcc won't complain about unrecognized -Wno-foo switches, so we have to
505 # test for the positive form and if that works, add the negative form
507 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument])
508 if test -n "$NOT_THE_CFLAGS"; then
509 CFLAGS="$CFLAGS -Wno-unused-command-line-argument"
511 # Similarly disable useless truncation warnings from gcc 8+
513 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation])
514 if test -n "$NOT_THE_CFLAGS"; then
515 CFLAGS="$CFLAGS -Wno-format-truncation"
518 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation])
519 if test -n "$NOT_THE_CFLAGS"; then
520 CFLAGS="$CFLAGS -Wno-stringop-truncation"
522 elif test "$ICC" = yes; then
523 # Intel's compiler has a bug/misoptimization in checking for
524 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
525 PGAC_PROG_CC_CFLAGS_OPT([-mp1])
526 PGAC_PROG_CXX_CFLAGS_OPT([-mp1])
527 # Make sure strict aliasing is off (though this is said to be the default)
528 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
529 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
530 elif test "$PORTNAME" = "aix"; then
531 # AIX's xlc has to have strict aliasing turned off too
532 PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
533 PGAC_PROG_CXX_CFLAGS_OPT([-qnoansialias])
534 PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
535 PGAC_PROG_CXX_CFLAGS_OPT([-qlonglong])
536 elif test "$PORTNAME" = "hpux"; then
537 # On some versions of HP-UX, libm functions do not set errno by default.
538 # Fix that by using +Olibmerrno if the compiler recognizes it.
539 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno])
540 PGAC_PROG_CXX_CFLAGS_OPT([+Olibmerrno])
543 AC_SUBST(CFLAGS_VECTOR, $CFLAGS_VECTOR)
545 # Determine flags used to emit bitcode for JIT inlining. Need to test
546 # for behaviour changing compiler flags, to keep compatibility with
547 # compiler used for normal postgres code.
548 if test "$with_llvm" = yes ; then
549 CLANGXX="$CLANG -xc++"
551 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing])
552 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing])
553 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv])
554 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv])
555 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard])
556 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard])
559 # supply -g if --enable-debug
560 if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then
564 if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then
565 CXXFLAGS="$CXXFLAGS -g"
568 # enable code coverage if --enable-coverage
569 if test "$enable_coverage" = yes; then
570 if test "$GCC" = yes; then
571 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
572 CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
574 AC_MSG_ERROR([--enable-coverage is supported only when using GCC])
578 # enable profiling if --enable-profiling
579 if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then
580 if test "$GCC" = yes; then
581 AC_DEFINE([PROFILE_PID_DIR], 1,
582 [Define to 1 to allow profiling output to be saved separately for each process.])
583 CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS"
584 CXXFLAGS="$CXXFLAGS -pg $PLATFORM_PROFILE_FLAGS"
586 AC_MSG_ERROR([--enable-profiling is supported only when using GCC])
590 # We already have this in Makefile.win32, but configure needs it too
591 if test "$PORTNAME" = "win32"; then
592 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND"
595 # Now that we're done automatically adding stuff to C[XX]FLAGS, put back the
596 # user-specified flags (if any) at the end. This lets users override
597 # the automatic additions.
598 CFLAGS="$CFLAGS $user_CFLAGS"
599 CXXFLAGS="$CXXFLAGS $user_CXXFLAGS"
600 BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS"
601 BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS"
603 AC_SUBST(BITCODE_CFLAGS, $BITCODE_CFLAGS)
604 AC_SUBST(BITCODE_CXXFLAGS, $BITCODE_CXXFLAGS)
606 # Check if the compiler still works with the final flag settings
607 # (note, we're not checking that for CXX, which is optional)
608 AC_MSG_CHECKING([whether the C compiler still works])
609 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
610 [AC_MSG_RESULT(yes)],
612 AC_MSG_ERROR([cannot proceed])])
614 # Defend against gcc -ffast-math
615 if test "$GCC" = yes; then
616 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
618 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
621 # Defend against clang being used on x86-32 without SSE2 enabled. As current
622 # versions of clang do not understand -fexcess-precision=standard, the use of
623 # x87 floating point operations leads to problems like isinf possibly returning
624 # false for a value that is infinite when converted from the 80bit register to
625 # the 8byte memory representation.
627 # Only perform the test if the compiler doesn't understand
628 # -fexcess-precision=standard, that way a potentially fixed compiler will work
630 if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then
631 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
632 @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__)
636 [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])])
644 # Set up TAS assembly code if needed; the template file has now had its
645 # chance to request this.
647 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
649 if test "$need_tas" = yes ; then
658 # Automatic dependency tracking
660 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
666 # Enable assert checks
668 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
669 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
670 [Define to 1 to build with assertion checks. (--enable-cassert)])])
674 # Include directories
677 IFS="${IFS}${PATH_SEPARATOR}"
678 # SRCH_INC comes from the template file
679 for dir in $with_includes $SRCH_INC; do
680 if test -d "$dir"; then
681 INCLUDES="$INCLUDES -I$dir"
683 AC_MSG_WARN([*** Include directory $dir does not exist.])
691 # Library directories
694 IFS="${IFS}${PATH_SEPARATOR}"
695 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
696 for dir in $LIBRARY_DIRS $SRCH_LIB; do
697 if test -d "$dir"; then
698 LIBDIRS="$LIBDIRS -L$dir"
700 AC_MSG_WARN([*** Library directory $dir does not exist.])
706 # Enable thread-safe client libraries
708 AC_MSG_CHECKING([allow thread-safe client libraries])
709 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
710 if test "$enable_thread_safety" = yes; then
711 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
712 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
714 AC_MSG_RESULT([$enable_thread_safety])
715 AC_SUBST(enable_thread_safety)
720 AC_MSG_CHECKING([whether to build with ICU support])
721 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
722 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
723 AC_MSG_RESULT([$with_icu])
726 if test "$with_icu" = yes; then
727 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
731 # Optionally build Tcl modules (PL/Tcl)
733 AC_MSG_CHECKING([whether to build with Tcl])
734 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
735 AC_MSG_RESULT([$with_tcl])
738 # We see if the path to the Tcl/Tk configuration scripts is specified.
739 # This will override the use of tclsh to find the paths to search.
741 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
744 # Optionally build Perl modules (PL/Perl)
746 AC_MSG_CHECKING([whether to build Perl modules])
747 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
748 AC_MSG_RESULT([$with_perl])
752 # Optionally build Python modules (PL/Python)
754 AC_MSG_CHECKING([whether to build Python modules])
755 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
756 AC_MSG_RESULT([$with_python])
757 AC_SUBST(with_python)
762 AC_MSG_CHECKING([whether to build with GSSAPI support])
763 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
765 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
766 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
768 AC_MSG_RESULT([$with_gssapi])
769 AC_SUBST(with_gssapi)
776 # Kerberos configuration parameters
778 PGAC_ARG_REQ(with, krb-srvnam,
779 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
781 [with_krb_srvnam="postgres"])
782 AC_SUBST(with_krb_srvnam)
783 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
784 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
790 AC_MSG_CHECKING([whether to build with PAM support])
791 PGAC_ARG_BOOL(with, pam, no,
792 [build with PAM support],
793 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
794 AC_MSG_RESULT([$with_pam])
800 AC_MSG_CHECKING([whether to build with BSD Authentication support])
801 PGAC_ARG_BOOL(with, bsd-auth, no,
802 [build with BSD Authentication support],
803 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
804 AC_MSG_RESULT([$with_bsd_auth])
810 AC_MSG_CHECKING([whether to build with LDAP support])
811 PGAC_ARG_BOOL(with, ldap, no,
812 [build with LDAP support],
813 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
814 AC_MSG_RESULT([$with_ldap])
821 AC_MSG_CHECKING([whether to build with Bonjour support])
822 PGAC_ARG_BOOL(with, bonjour, no,
823 [build with Bonjour support],
824 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
825 AC_MSG_RESULT([$with_bonjour])
831 AC_MSG_CHECKING([whether to build with OpenSSL support])
832 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
833 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
834 AC_MSG_RESULT([$with_openssl])
835 AC_SUBST(with_openssl)
840 AC_MSG_CHECKING([whether to build with SELinux support])
841 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
842 AC_SUBST(with_selinux)
843 AC_MSG_RESULT([$with_selinux])
848 AC_MSG_CHECKING([whether to build with systemd support])
849 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
850 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
851 AC_SUBST(with_systemd)
852 AC_MSG_RESULT([$with_systemd])
857 PGAC_ARG_BOOL(with, readline, yes,
858 [do not use GNU Readline nor BSD Libedit for editing])
859 # readline on MinGW has problems with backslashes in psql and other bugs.
860 # This is particularly a problem with non-US code pages.
861 # Therefore disable its use until we understand the cause. 2004-07-20
862 if test "$PORTNAME" = "win32"; then
863 if test "$with_readline" = yes; then
864 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
873 PGAC_ARG_BOOL(with, libedit-preferred, no,
874 [prefer BSD Libedit over GNU Readline])
880 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
881 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
882 # UUID library. More than one of these might be present on a given platform,
883 # so we make the user say which one she wants.
885 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
886 if test x"$with_uuid" = x"" ; then
889 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
890 if test "$with_ossp_uuid" = yes ; then
894 if test "$with_uuid" = bsd ; then
895 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
896 UUID_EXTRA_OBJS="md5.o sha1.o"
897 elif test "$with_uuid" = e2fs ; then
898 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
899 UUID_EXTRA_OBJS="md5.o sha1.o"
900 elif test "$with_uuid" = ossp ; then
901 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
903 elif test "$with_uuid" = no ; then
906 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
909 AC_SUBST(UUID_EXTRA_OBJS)
915 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
916 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
918 if test "$with_libxml" = yes ; then
919 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
920 AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl
921 if test -n "$XML2_CONFIG"; then
922 for pgac_option in `$XML2_CONFIG --cflags`; do
924 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
927 for pgac_option in `$XML2_CONFIG --libs`; do
929 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
935 AC_SUBST(with_libxml)
940 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
941 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
944 AC_SUBST(with_libxslt)
949 PGAC_ARG_REQ(with, system-tzdata,
950 [DIR], [use system time zone data in DIR])
951 AC_SUBST(with_system_tzdata)
956 PGAC_ARG_BOOL(with, zlib, yes,
964 # Assume system is ELF if it predefines __ELF__ as 1,
965 # otherwise believe host_os based default.
967 freebsd1*|freebsd2*) elf=no;;
968 freebsd3*|freebsd4*) elf=yes;;
977 [if test "X$elf" = "Xyes" ; then
988 CPPFLAGS="$CPPFLAGS $INCLUDES"
989 LDFLAGS="$LDFLAGS $LIBDIRS"
991 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
992 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
996 AC_SUBST(with_gnu_ld)
999 AC_CHECK_TOOL(AR, ar, ar)
1000 if test "$PORTNAME" = "win32"; then
1001 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
1002 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
1003 AC_CHECK_TOOL(WINDRES, windres, windres)
1007 # When Autoconf chooses install-sh as install program it tries to generate
1008 # a relative path to it in each makefile where it substitutes it. This clashes
1009 # with our Makefile.global concept. This workaround helps.
1011 *install-sh*) install_bin='';;
1012 *) install_bin=$INSTALL;;
1014 AC_SUBST(install_bin)
1016 PGAC_PATH_PROGS(TAR, tar)
1019 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
1020 # a relative path to it in each makefile where it substitutes it. This clashes
1021 # with our Makefile.global concept. This workaround helps.
1023 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
1030 if test "$with_perl" = yes; then
1031 if test -z "$PERL"; then
1032 AC_MSG_ERROR([Perl not found])
1034 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
1035 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
1036 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1037 You might have to rebuild your Perl installation. Refer to the
1038 documentation for details. Use --without-perl to disable building
1041 # On most platforms, archlibexp is also where the Perl include files live ...
1042 perl_includespec="-I$perl_archlibexp/CORE"
1043 # ... but on newer macOS versions, we must use -iwithsysroot to look
1045 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then
1046 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1047 perl_includespec="-iwithsysroot $perl_archlibexp/CORE"
1050 AC_SUBST(perl_includespec)dnl
1051 PGAC_CHECK_PERL_EMBED_CCFLAGS
1052 PGAC_CHECK_PERL_EMBED_LDFLAGS
1055 if test "$with_python" = yes; then
1057 PGAC_CHECK_PYTHON_EMBED_SETUP
1060 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1061 PGAC_PATH_PROGS(ZIC, zic)
1062 if test -z "$ZIC"; then
1064 When cross-compiling, either use the option --with-system-tzdata to use
1065 existing time-zone data, or set the environment variable ZIC to a zic
1066 program to use during the build.])
1073 # For each platform, we need to know about any special compile and link
1074 # libraries, and whether the normal C function names are thread-safe.
1075 # See the comment at the top of src/port/thread.c for more information.
1076 # WIN32 doesn't need the pthread tests; it always uses threads
1078 # These tests are run before the library-tests, because linking with the
1079 # other libraries can pull in the pthread functions as a side-effect. We
1080 # want to use the -pthread or similar flags directly, and not rely on
1081 # the side-effects of linking with some other library.
1083 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1084 # invocation below is the first one in the script, and autoconf generates
1085 # additional code for that, which must not be inside the if-block. AS_IF
1086 # knows how to do that.
1087 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1089 AX_PTHREAD # set thread flags
1091 # Some platforms use these, so just define them. They can't hurt if they
1092 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1093 # enables 5-arg getpwuid_r, among other things.
1094 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1096 # Check for *_r functions
1099 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1100 LIBS="$LIBS $PTHREAD_LIBS"
1102 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1103 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1105 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1107 # Do test here with the proper thread flags
1108 PGAC_FUNC_STRERROR_R_INT
1114 # do not use values from template file
1119 AC_SUBST(PTHREAD_CFLAGS)
1120 AC_SUBST(PTHREAD_LIBS)
1126 ## Most libraries are included only if they demonstrably provide a function
1127 ## we need, but libm is an exception: always include it, because there are
1128 ## too many compilers that play cute optimization games that will break
1129 ## probes for standard functions such as pow().
1132 AC_CHECK_LIB(m, main)
1133 AC_SEARCH_LIBS(setproctitle, util)
1134 AC_SEARCH_LIBS(dlopen, dl)
1135 AC_SEARCH_LIBS(socket, [socket ws2_32])
1136 AC_SEARCH_LIBS(shl_load, dld)
1137 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1138 AC_SEARCH_LIBS(crypt, crypt)
1139 AC_SEARCH_LIBS(shm_open, rt)
1140 AC_SEARCH_LIBS(shm_unlink, rt)
1141 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1143 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1144 # Required for thread_test.c on Solaris
1145 AC_SEARCH_LIBS(sched_yield, rt)
1146 # Required for thread_test.c on Solaris 2.5:
1147 # Other ports use it too (HP-UX) so test unconditionally
1148 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1150 AC_SEARCH_LIBS(shmget, cygipc)
1152 if test "$with_readline" = yes; then
1154 if test x"$pgac_cv_check_readline" = x"no"; then
1155 AC_MSG_ERROR([readline library not found
1156 If you have readline already installed, see config.log for details on the
1157 failure. It is possible the compiler isn't looking in the proper directory.
1158 Use --without-readline to disable readline support.])
1162 if test "$with_zlib" = yes; then
1163 AC_CHECK_LIB(z, inflate, [],
1164 [AC_MSG_ERROR([zlib library not found
1165 If you have zlib already installed, see config.log for details on the
1166 failure. It is possible the compiler isn't looking in the proper directory.
1167 Use --without-zlib to disable zlib support.])])
1170 if test "$enable_spinlocks" = yes; then
1171 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1174 *** Not using spinlocks will cause poor performance.])
1177 if test "$enable_atomics" = yes; then
1178 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1181 *** Not using atomic operations will cause poor performance.])
1184 if test "$with_gssapi" = yes ; then
1185 if test "$PORTNAME" != "win32"; then
1186 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1187 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1189 LIBS="$LIBS -lgssapi32"
1193 if test "$with_openssl" = yes ; then
1195 if test "$PORTNAME" != "win32"; then
1196 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1197 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1199 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1200 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1202 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1203 # Functions introduced in OpenSSL 1.1.0. We used to check for
1204 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1205 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1206 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1208 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1209 # OpenSSL versions before 1.1.0 required setting callback functions, for
1210 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1211 # function was removed.
1212 AC_CHECK_FUNCS([CRYPTO_lock])
1215 if test "$with_pam" = yes ; then
1216 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1219 if test "$with_libxml" = yes ; then
1220 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1223 if test "$with_libxslt" = yes ; then
1224 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1227 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1228 if test "$with_ldap" = yes ; then
1230 if test "$PORTNAME" != "win32"; then
1231 AC_CHECK_LIB(ldap, ldap_bind, [],
1232 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1234 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1235 if test "$enable_thread_safety" = yes; then
1236 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1237 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1238 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1239 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1240 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1242 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1244 AC_CHECK_FUNCS([ldap_initialize])
1246 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1247 LDAP_LIBS_FE="-lwldap32"
1248 LDAP_LIBS_BE="-lwldap32"
1252 AC_SUBST(LDAP_LIBS_FE)
1253 AC_SUBST(LDAP_LIBS_BE)
1255 # for contrib/sepgsql
1256 if test "$with_selinux" = yes; then
1257 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1258 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1261 # for contrib/uuid-ossp
1262 if test "$with_uuid" = bsd ; then
1263 # On BSD, the UUID functions are in libc
1264 AC_CHECK_FUNC(uuid_to_string,
1266 [AC_MSG_ERROR([BSD UUID functions are not present])])
1267 elif test "$with_uuid" = e2fs ; then
1268 # On macOS, the UUID functions are in libc
1269 AC_CHECK_FUNC(uuid_generate,
1271 [AC_CHECK_LIB(uuid, uuid_generate,
1272 [UUID_LIBS="-luuid"],
1273 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1274 elif test "$with_uuid" = ossp ; then
1275 AC_CHECK_LIB(ossp-uuid, uuid_export,
1276 [UUID_LIBS="-lossp-uuid"],
1277 [AC_CHECK_LIB(uuid, uuid_export,
1278 [UUID_LIBS="-luuid"],
1279 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1290 AC_CHECK_HEADERS(m4_normalize([
1320 # On BSD, test for net/if.h will fail unless sys/socket.h
1321 # is included first.
1322 AC_CHECK_HEADERS(net/if.h, [], [],
1323 [AC_INCLUDES_DEFAULT
1324 #include <sys/socket.h>
1327 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1328 # is included first.
1329 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1330 [AC_INCLUDES_DEFAULT
1331 #include <sys/param.h>
1334 # At least on IRIX, test for netinet/tcp.h will fail unless
1335 # netinet/in.h is included first.
1336 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1337 [AC_INCLUDES_DEFAULT
1338 #include <netinet/in.h>
1341 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1342 AC_CHECK_HEADERS(readline/readline.h, [],
1343 [AC_CHECK_HEADERS(readline.h, [],
1344 [AC_MSG_ERROR([readline header not found
1345 If you have readline already installed, see config.log for details on the
1346 failure. It is possible the compiler isn't looking in the proper directory.
1347 Use --without-readline to disable readline support.])])])
1348 AC_CHECK_HEADERS(readline/history.h, [],
1349 [AC_CHECK_HEADERS(history.h, [],
1350 [AC_MSG_ERROR([history header not found
1351 If you have readline already installed, see config.log for details on the
1352 failure. It is possible the compiler isn't looking in the proper directory.
1353 Use --without-readline to disable readline support.])])])
1356 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1357 # Some installations of libedit usurp /usr/include/readline/, which seems
1358 # bad practice, since in combined installations readline will have its headers
1359 # there. We might have to resort to AC_EGREP checks to make sure we found
1360 # the proper header...
1361 AC_CHECK_HEADERS(editline/readline.h, [],
1362 [AC_CHECK_HEADERS(readline.h, [],
1363 [AC_CHECK_HEADERS(readline/readline.h, [],
1364 [AC_MSG_ERROR([readline header not found
1365 If you have libedit already installed, see config.log for details on the
1366 failure. It is possible the compiler isn't looking in the proper directory.
1367 Use --without-readline to disable libedit support.])])])])
1368 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1369 # not be there at all. Hence, don't complain if not found. We must check
1370 # though, since in yet other versions it is an independent header.
1371 AC_CHECK_HEADERS(editline/history.h, [],
1372 [AC_CHECK_HEADERS(history.h, [],
1373 [AC_CHECK_HEADERS(readline/history.h)])])
1376 if test "$with_zlib" = yes; then
1377 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1378 If you have zlib already installed, see config.log for details on the
1379 failure. It is possible the compiler isn't looking in the proper directory.
1380 Use --without-zlib to disable zlib support.])])
1383 if test "$with_gssapi" = yes ; then
1384 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1385 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1388 if test "$with_openssl" = yes ; then
1389 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1390 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1393 if test "$with_pam" = yes ; then
1394 AC_CHECK_HEADERS(security/pam_appl.h, [],
1395 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1396 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1399 if test "$with_bsd_auth" = yes ; then
1400 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1403 if test "$with_systemd" = yes ; then
1404 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1407 if test "$with_libxml" = yes ; then
1408 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1411 if test "$with_libxslt" = yes ; then
1412 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1415 if test "$with_ldap" = yes ; then
1416 if test "$PORTNAME" != "win32"; then
1417 AC_CHECK_HEADERS(ldap.h, [],
1418 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1421 AC_CHECK_HEADERS(winldap.h, [],
1422 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1423 [AC_INCLUDES_DEFAULT
1424 #include <windows.h>
1429 if test "$with_bonjour" = yes ; then
1430 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1431 dnl At some point we might add something like
1432 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1433 dnl but right now, what that would mainly accomplish is to encourage
1434 dnl people to try to use the avahi implementation, which does not work.
1435 dnl If you want to use Apple's own Bonjour code on another platform,
1436 dnl just add -ldns_sd to LIBS manually.
1439 # for contrib/uuid-ossp
1440 if test "$with_uuid" = bsd ; then
1441 AC_CHECK_HEADERS(uuid.h,
1442 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1443 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1444 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1445 elif test "$with_uuid" = e2fs ; then
1446 AC_CHECK_HEADERS(uuid/uuid.h,
1447 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1448 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1449 [AC_CHECK_HEADERS(uuid.h,
1450 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1451 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1452 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1453 elif test "$with_uuid" = ossp ; then
1454 AC_CHECK_HEADERS(ossp/uuid.h,
1455 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1456 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1457 [AC_CHECK_HEADERS(uuid.h,
1458 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1459 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1460 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1463 if test "$PORTNAME" = "win32" ; then
1464 AC_CHECK_HEADERS(crtdefs.h)
1468 ## Types, structures, compiler characteristics
1471 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1474 PGAC_PRINTF_ARCHETYPE
1475 AC_C_FLEXIBLE_ARRAY_MEMBER
1477 PGAC_C_FUNCNAME_SUPPORT
1478 PGAC_C_STATIC_ASSERT
1480 PGAC_C_TYPES_COMPATIBLE
1481 PGAC_C_BUILTIN_BSWAP16
1482 PGAC_C_BUILTIN_BSWAP32
1483 PGAC_C_BUILTIN_BSWAP64
1484 PGAC_C_BUILTIN_CONSTANT_P
1485 PGAC_C_BUILTIN_UNREACHABLE
1486 PGAC_C_COMPUTED_GOTO
1487 PGAC_STRUCT_TIMEZONE
1489 PGAC_STRUCT_SOCKADDR_UN
1490 PGAC_STRUCT_SOCKADDR_STORAGE
1491 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1492 PGAC_STRUCT_ADDRINFO
1495 AC_TYPE_LONG_LONG_INT
1499 # MSVC doesn't cope well with defining restrict to __restrict, the
1500 # spelling it understands, because it conflicts with
1501 # __declspec(restrict). Therefore we define pg_restrict to the
1502 # appropriate definition, which presumably won't conflict.
1504 # Allow platforms with buggy compilers to force restrict to not be
1505 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1508 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1511 pg_restrict="$ac_cv_c_restrict"
1513 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1514 [Define to keyword to use for C99 restrict support, or to nothing if not
1517 AC_CHECK_TYPES([struct cmsgcred], [], [],
1518 [#include <sys/socket.h>
1519 #include <sys/param.h>
1520 #ifdef HAVE_SYS_UCRED_H
1521 #include <sys/ucred.h>
1524 AC_CHECK_TYPES([struct option], [], [],
1525 [#ifdef HAVE_GETOPT_H
1529 if test "$with_zlib" = yes; then
1530 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1531 # did not). While we could work around the lack of z_streamp, it
1532 # seems unwise to encourage people to use such old zlib versions...
1533 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1534 Use --without-zlib to disable zlib support.])],
1535 [#include <zlib.h>])
1538 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1541 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1542 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1543 [int a = 0; int *p = &a; int r;
1544 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1545 [pgac_cv_have_ppc_mutex_hint=yes],
1546 [pgac_cv_have_ppc_mutex_hint=no])
1547 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1548 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1549 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1554 # Check largefile support. You might think this is a system service not a
1555 # compiler characteristic, but you'd be wrong. We must check this before
1556 # probing existence of related functions such as fseeko, since the largefile
1557 # defines can affect what is generated for that.
1558 if test "$PORTNAME" != "win32"; then
1560 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1561 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1562 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1563 dnl versions where the feature actually works, it's on by default anyway.
1564 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1567 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1568 AC_CHECK_SIZEOF([off_t])
1570 # If we don't have largefile support, can't handle segsize >= 2GB.
1571 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1572 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1575 AC_CHECK_SIZEOF([bool], [],
1576 [#ifdef HAVE_STDBOOL_H
1577 #include <stdbool.h>
1582 ## Functions, global variables
1585 PGAC_VAR_INT_TIMEZONE
1586 AC_FUNC_ACCEPT_ARGTYPES
1587 PGAC_FUNC_GETTIMEOFDAY_1ARG
1588 PGAC_FUNC_WCSTOMBS_L
1590 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1591 # symbols that that library has no business exposing to the world. Pending
1592 # acquisition of a clue by those developers, ignore libedit (including its
1593 # possible alias of libreadline) while checking for everything else.
1594 LIBS_including_readline="$LIBS"
1595 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1597 AC_CHECK_FUNCS(m4_normalize([
1611 pthread_is_threaded_np
1627 AC_REPLACE_FUNCS(fseeko)
1629 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1630 # Mingw uses macros to access Win32 API calls
1632 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1633 ac_cv_func_fseeko=yes;;
1638 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1639 # by calling it, 2009-04-02
1640 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1641 dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions
1642 AS_IF([test "$PORTNAME" != "solaris"], [
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>])
1654 AC_CHECK_TYPE([struct sockaddr_in6],
1655 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])],
1657 [$ac_includes_default
1658 #include <netinet/in.h>])
1660 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1661 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1662 [#include <machine/vmparam.h>
1663 #include <sys/exec.h>
1665 [PS_STRINGS->ps_nargvstr = 1;
1666 PS_STRINGS->ps_argvstr = "foo";])],
1667 [pgac_cv_var_PS_STRINGS=yes],
1668 [pgac_cv_var_PS_STRINGS=no])])
1669 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1670 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1674 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1675 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1676 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1680 [return isinf(glob_double) ? 0 : 1;])],
1681 [ac_cv_func_isinf=yes],
1682 [ac_cv_func_isinf=no])])
1684 if test $ac_cv_func_isinf = yes ; then
1685 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1688 # Look for a way to implement a substitute for isinf()
1689 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1692 AC_REPLACE_FUNCS(m4_normalize([
1712 # Windows uses a specialised env handler
1713 # and doesn't need a replacement getpeereid because it doesn't use
1716 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1717 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1718 ac_cv_func_unsetenv=yes
1719 ac_cv_func_getpeereid=yes;;
1721 AC_REPLACE_FUNCS([unsetenv getpeereid])
1725 # System's version of getaddrinfo(), if any, may be used only if we found
1726 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1727 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1728 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1729 test "$PORTNAME" != "win32"; then
1730 AC_REPLACE_FUNCS([getaddrinfo])
1732 AC_LIBOBJ(getaddrinfo)
1735 # Similarly, use system's getopt_long() only if system provides struct option.
1736 if test x"$ac_cv_type_struct_option" = xyes ; then
1737 AC_REPLACE_FUNCS([getopt_long])
1739 AC_LIBOBJ(getopt_long)
1742 # On OpenBSD and Solaris, getopt() doesn't do what we want for long options
1743 # (i.e., allow '-' as a flag character), so use our version on those platforms.
1744 if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then
1748 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1749 # so always use our version on Windows.
1750 if test "$PORTNAME" = "win32"; then
1752 AC_LIBOBJ(getopt_long)
1755 # Win32 (really MinGW) support
1756 if test "$PORTNAME" = "win32"; then
1757 AC_CHECK_FUNCS(_configthreadlocale)
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_FUNC(syslog,
1787 [AC_CHECK_HEADER(syslog.h,
1788 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1790 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1791 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1792 [extern int opterr; opterr = 1;])],
1793 [pgac_cv_var_int_opterr=yes],
1794 [pgac_cv_var_int_opterr=no])])
1795 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1796 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1799 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1800 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1801 [extern int optreset; optreset = 1;])],
1802 [pgac_cv_var_int_optreset=yes],
1803 [pgac_cv_var_int_optreset=no])])
1804 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1805 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1808 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1809 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1810 # strto[u]ll may exist but not be declared
1811 AC_CHECK_DECLS([strtoll, strtoull])
1813 if test "$with_icu" = yes; then
1814 ac_save_CPPFLAGS=$CPPFLAGS
1815 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1817 # Verify we have ICU's header files
1818 AC_CHECK_HEADER(unicode/ucol.h, [],
1819 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1821 CPPFLAGS=$ac_save_CPPFLAGS
1824 if test "$with_llvm" = yes; then
1825 PGAC_CHECK_LLVM_FUNCTIONS()
1828 # Lastly, restore full LIBS list and check for readline/libedit symbols
1829 LIBS="$LIBS_including_readline"
1831 if test "$with_readline" = yes; then
1832 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1833 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1834 AC_CHECK_FUNCS([append_history history_truncate_file])
1838 # This test makes sure that run tests work at all. Sometimes a shared
1839 # library is found by the linker, but the runtime linker can't find it.
1840 # This check should come after all modifications of compiler or linker
1841 # variables, and before any other run tests.
1842 AC_MSG_CHECKING([test program])
1843 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1844 [AC_MSG_RESULT(ok)],
1845 [AC_MSG_RESULT(failed)
1847 Could not execute a simple test program. This may be a problem
1848 related to locating shared libraries. Check the file 'config.log'
1849 for the exact reason.]])],
1850 [AC_MSG_RESULT([cross-compiling])])
1852 # --------------------
1853 # Run tests below here
1854 # --------------------
1856 dnl Check to see if we have a working 64-bit integer type.
1857 dnl Since Postgres 8.4, we no longer support compilers without a working
1858 dnl 64-bit type; but we have to determine whether that type is called
1859 dnl "long int" or "long long int".
1861 PGAC_TYPE_64BIT_INT([long int])
1863 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1864 pg_int64_type="long int"
1866 PGAC_TYPE_64BIT_INT([long long int])
1867 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1868 pg_int64_type="long long int"
1870 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1874 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1875 [Define to the name of a signed 64-bit integer type.])
1877 # Select the printf length modifier that goes with that, too.
1878 if test x"$pg_int64_type" = x"long long int" ; then
1879 INT64_MODIFIER='"ll"'
1881 INT64_MODIFIER='"l"'
1884 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1885 [Define to the appropriate printf length modifier for 64-bit ints.])
1887 # has to be down here, rather than with the other builtins, because
1888 # the test uses PG_INT64_TYPE.
1889 PGAC_C_BUILTIN_OP_OVERFLOW
1891 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1892 AC_CHECK_SIZEOF([void *])
1893 AC_CHECK_SIZEOF([size_t])
1894 AC_CHECK_SIZEOF([long])
1896 # Decide whether float4 is passed by value: user-selectable, enabled by default
1897 AC_MSG_CHECKING([whether to build with float4 passed by value])
1898 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1899 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1900 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1901 float4passbyval=true],
1902 [float4passbyval=false])
1903 AC_MSG_RESULT([$enable_float4_byval])
1904 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1906 # Decide whether float8 is passed by value.
1907 # Note: this setting also controls int8 and related types such as timestamp.
1908 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1909 # If not, trying to select it is an error.
1910 AC_MSG_CHECKING([whether to build with float8 passed by value])
1911 if test $ac_cv_sizeof_void_p -ge 8 ; then
1912 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1914 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1915 if test "$enable_float8_byval" = yes ; then
1916 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1919 if test "$enable_float8_byval" = yes ; then
1920 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1921 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1922 float8passbyval=true
1924 float8passbyval=false
1926 AC_MSG_RESULT([$enable_float8_byval])
1927 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1929 # Determine memory alignment requirements for the basic C data types.
1931 AC_CHECK_ALIGNOF(short)
1932 AC_CHECK_ALIGNOF(int)
1933 AC_CHECK_ALIGNOF(long)
1934 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1935 AC_CHECK_ALIGNOF(long long int)
1937 AC_CHECK_ALIGNOF(double)
1939 # Compute maximum alignment of any basic type.
1940 # We assume long's alignment is at least as strong as char, short, or int;
1941 # but we must check long long (if it is being used for int64) and double.
1942 # Note that we intentionally do not consider any types wider than 64 bits,
1943 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1944 # for disk and memory space.
1946 MAX_ALIGNOF=$ac_cv_alignof_long
1947 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1948 MAX_ALIGNOF=$ac_cv_alignof_double
1950 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1951 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1953 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1956 # Some platforms predefine the types int8, int16, etc. Only check
1957 # a (hopefully) representative subset.
1958 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1959 [#include <stdio.h>])
1961 # Some compilers offer a 128-bit integer scalar type.
1962 PGAC_TYPE_128BIT_INT
1964 # Check for various atomic operations now that we have checked how to declare
1966 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1967 PGAC_HAVE_GCC__SYNC_INT32_TAS
1968 PGAC_HAVE_GCC__SYNC_INT32_CAS
1969 PGAC_HAVE_GCC__SYNC_INT64_CAS
1970 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1971 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1974 # Check for x86 cpuid instruction
1975 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1976 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1977 [[unsigned int exx[4] = {0, 0, 0, 0};
1978 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1980 [pgac_cv__get_cpuid="yes"],
1981 [pgac_cv__get_cpuid="no"])])
1982 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1983 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1986 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1987 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
1988 [[unsigned int exx[4] = {0, 0, 0, 0};
1989 __get_cpuid(exx[0], 1);
1991 [pgac_cv__cpuid="yes"],
1992 [pgac_cv__cpuid="no"])])
1993 if test x"$pgac_cv__cpuid" = x"yes"; then
1994 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
1997 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
1999 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2000 # with the default compiler flags. If not, check if adding the -msse4.2
2001 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2002 PGAC_SSE42_CRC32_INTRINSICS([])
2003 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2004 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2006 AC_SUBST(CFLAGS_SSE42)
2008 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2009 # define __SSE4_2__ in that case.
2010 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2012 #error __SSE4_2__ not defined
2014 ])], [SSE4_2_TARGETED=1])
2016 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2018 # First check if __crc32c* intrinsics can be used with the default compiler
2019 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2020 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2021 PGAC_ARMV8_CRC32C_INTRINSICS([])
2022 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2023 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2025 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2027 # Select CRC-32C implementation.
2029 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2030 # use the special CRC instructions for calculating CRC-32C. If we're not
2031 # targeting such a processor, but we can nevertheless produce code that uses
2032 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2033 # implementations and select which one to use at runtime, depending on whether
2034 # SSE 4.2 is supported by the processor we're running on.
2036 # Similarly, if we are targeting an ARM processor that has the CRC
2037 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2038 # we're not targeting such a processor, but can nevertheless produce code that
2039 # uses the CRC instructions, compile both, and select at runtime.
2041 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2042 # in the template or configure command line.
2043 if test x"$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
2044 # Use Intel SSE 4.2 if available.
2045 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2048 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2049 # the runtime check.
2050 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2051 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2053 # Use ARM CRC Extension if available.
2054 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2057 # ARM CRC Extension, with runtime check?
2058 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2059 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2061 # fall back to slicing-by-8 algorithm, which doesn't require any
2062 # special CPU support.
2063 USE_SLICING_BY_8_CRC32C=1
2070 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2071 AC_MSG_CHECKING([which CRC-32C implementation to use])
2072 if test x"$USE_SSE42_CRC32C" = x"1"; then
2073 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2074 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2075 AC_MSG_RESULT(SSE 4.2)
2077 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2078 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2079 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2080 AC_MSG_RESULT(SSE 4.2 with runtime check)
2082 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2083 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2084 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2085 AC_MSG_RESULT(ARMv8 CRC instructions)
2087 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2088 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2089 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2090 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2092 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2093 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2094 AC_MSG_RESULT(slicing-by-8)
2099 AC_SUBST(PG_CRC32C_OBJS)
2102 # Select semaphore implementation type.
2103 if test "$PORTNAME" != "win32"; then
2104 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2105 # Need sem_open for this
2106 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2108 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2109 # Need sem_init for this
2110 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2112 AC_MSG_CHECKING([which semaphore API to use])
2113 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2114 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2115 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2116 sematype="named POSIX"
2118 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2119 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2120 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2121 sematype="unnamed POSIX"
2123 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2124 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2128 AC_MSG_RESULT([$sematype])
2130 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2131 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2135 # Select shared-memory implementation type.
2136 if test "$PORTNAME" != "win32"; then
2137 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2138 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2140 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2141 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2144 # Select random number source
2146 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2147 # in the template or configure command line.
2149 # If not selected manually, try to select a source automatically.
2150 if test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2151 if test x"$with_openssl" = x"yes" ; then
2152 USE_OPENSSL_RANDOM=1
2153 elif test "$PORTNAME" = "win32" ; then
2156 AC_CHECK_FILE([/dev/urandom], [], [])
2158 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2164 AC_MSG_CHECKING([which random number source to use])
2165 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2166 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2167 AC_MSG_RESULT([OpenSSL])
2168 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2169 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2170 AC_MSG_RESULT([Windows native])
2171 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2172 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2173 AC_MSG_RESULT([/dev/urandom])
2176 no source of strong random numbers was found
2177 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers.])
2180 # If not set in template file, set bytes to use libc memset()
2181 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2182 MEMSET_LOOP_LIMIT=1024
2184 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2187 if test "$enable_nls" = yes ; then
2191 # Check for Tcl configuration script tclConfig.sh
2192 if test "$with_tcl" = yes; then
2193 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2194 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2195 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2196 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2197 if test "$TCL_SHARED_BUILD" != 1; then
2198 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2199 Use --without-tcl to disable building PL/Tcl.])
2201 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2202 ac_save_CPPFLAGS=$CPPFLAGS
2203 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2204 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2205 CPPFLAGS=$ac_save_CPPFLAGS
2208 # check for <perl.h>
2209 if test "$with_perl" = yes; then
2210 ac_save_CPPFLAGS=$CPPFLAGS
2211 CPPFLAGS="$CPPFLAGS $perl_includespec"
2212 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2213 [#include <EXTERN.h>])
2214 # While we're at it, check that we can link to libperl.
2215 # On most platforms, if perl.h is there then libperl.so will be too, but at
2216 # this writing Debian packages them separately. There is no known reason to
2217 # waste cycles on separate probes for the Tcl or Python libraries, though.
2218 pgac_save_LIBS=$LIBS
2219 LIBS="$perl_embed_ldflags"
2220 AC_MSG_CHECKING([for libperl])
2221 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2224 ], [perl_alloc();])],
2225 [AC_MSG_RESULT(yes)],
2227 AC_MSG_ERROR([libperl library is required for Perl])])
2228 LIBS=$pgac_save_LIBS
2229 CPPFLAGS=$ac_save_CPPFLAGS
2232 # check for <Python.h>
2233 if test "$with_python" = yes; then
2234 ac_save_CPPFLAGS=$CPPFLAGS
2235 CPPFLAGS="$python_includespec $CPPFLAGS"
2236 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2237 CPPFLAGS=$ac_save_CPPFLAGS
2241 # Check for DocBook and tools
2244 PGAC_CHECK_DOCBOOK(4.2)
2245 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2246 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2247 PGAC_PATH_PROGS(FOP, fop)
2250 # Check for test tools
2252 if test "$enable_tap_tests" = yes; then
2253 # Check for necessary modules, unless user has specified the "prove" to use;
2254 # in that case it's her responsibility to have a working configuration.
2255 # (prove might be part of a different Perl installation than perl, eg on
2256 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2257 if test -z "$PROVE"; then
2258 # Test::More and Time::HiRes are supposed to be part of core Perl,
2259 # but some distros omit them in a minimal installation.
2260 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], ,
2261 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])])
2263 # Now make sure we know where prove is
2264 PGAC_PATH_PROGS(PROVE, prove)
2265 if test -z "$PROVE"; then
2266 AC_MSG_ERROR([prove not found])
2272 # We have to run the thread test near the end so we have all our symbols
2273 # defined. Cross compiling throws a warning.
2275 if test "$enable_thread_safety" = yes; then
2276 if test "$PORTNAME" != "win32"
2278 AC_MSG_CHECKING([thread safety of required library functions])
2282 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2283 LIBS="$LIBS $PTHREAD_LIBS"
2285 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2286 [AC_MSG_RESULT(yes)],
2288 AC_MSG_ERROR([thread test program failed
2289 This platform is not thread-safe. Check the file 'config.log' or compile
2290 and run src/test/thread/thread_test for the exact reason.
2291 Use --disable-thread-safety to disable thread safety.])],
2292 [AC_MSG_RESULT(maybe)
2294 *** Skipping thread test program because of cross-compile build.
2295 *** Run the program in src/test/thread on the target machine.
2300 AC_MSG_WARN([*** skipping thread test on Win32])
2304 # If compiler will take -Wl,--as-needed (or various platform-specific
2305 # spellings thereof) then add that to LDFLAGS. This is much easier than
2306 # trying to filter LIBS to the minimum for each executable.
2307 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2308 # libreadline; therefore we postpone testing it until we know what library
2309 # dependencies readline has. The test code will try to link with $LIBS.
2310 if test "$with_readline" = yes; then
2311 link_test_func=readline
2316 if test "$PORTNAME" = "darwin"; then
2317 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2318 elif test "$PORTNAME" = "openbsd"; then
2319 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2321 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2324 # Create compiler version string
2325 if test x"$GCC" = x"yes" ; then
2326 cc_string=`${CC} --version | sed q`
2327 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2328 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2329 cc_string=`${CC} -V 2>&1 | sed q`
2334 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2335 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2336 [A string containing the version number, platform, and C compiler])
2338 # Supply a numeric version string for use by 3rd party add-ons
2339 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2340 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2342 $AWK '{printf "%d%04d", $1, $2}'`"]
2343 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2344 AC_SUBST(PG_VERSION_NUM)
2346 # If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not
2347 # literally, so that it's possible to override it at build time using
2348 # a command like "make ... PG_SYSROOT=path". This has to be done after
2349 # we've finished all configure checks that depend on CPPFLAGS.
2350 if test x"$PG_SYSROOT" != x; then
2351 CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"`
2353 AC_SUBST(PG_SYSROOT)
2356 # Begin output steps
2358 AC_MSG_NOTICE([using compiler=$cc_string])
2359 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2360 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2361 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2362 # Currently only used when LLVM is used
2363 if test "$with_llvm" = yes ; then
2364 AC_MSG_NOTICE([using CXX=$CXX])
2365 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2366 AC_MSG_NOTICE([using CLANG=$CLANG])
2367 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2368 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2371 # prepare build tree if outside source tree
2372 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2373 # Note 2: /bin/pwd might be better than shell's built-in at getting
2374 # a symlink-free name.
2375 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2379 if test "$no_create" != yes; then
2380 _AS_ECHO_N([preparing build tree... ])
2381 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2382 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2383 || AC_MSG_ERROR(failed)
2387 AC_SUBST(vpath_build)
2390 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2393 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2394 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2395 src/include/pg_config_os.h:src/include/port/${template}.h
2396 src/Makefile.port:src/makefiles/Makefile.${template}
2399 if test "$PORTNAME" = "win32"; then
2400 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2401 # Links sometimes fail undetected on Mingw -
2402 # so here we detect it and warn the user
2403 for FILE in $CONFIG_LINKS
2405 # test -e works for symlinks in the MinGW console
2406 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2411 AC_CONFIG_HEADERS([src/include/pg_config.h],
2413 # Update timestamp for pg_config.h (see Makefile.global)
2414 echo >src/include/stamp-h
2417 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2419 # Update timestamp for pg_config_ext.h (see Makefile.global)
2420 echo >src/include/stamp-ext-h
2423 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2424 [echo >src/interfaces/ecpg/include/stamp-h])