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 "$perl_useshrplib" != true; then
1042 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1043 You might have to rebuild your Perl installation. Refer to the
1044 documentation for details. Use --without-perl to disable building
1047 PGAC_CHECK_PERL_EMBED_CCFLAGS
1048 PGAC_CHECK_PERL_EMBED_LDFLAGS
1051 if test "$with_python" = yes; then
1053 PGAC_CHECK_PYTHON_EMBED_SETUP
1056 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1057 PGAC_PATH_PROGS(ZIC, zic)
1058 if test -z "$ZIC"; then
1060 When cross-compiling, either use the option --with-system-tzdata to use
1061 existing time-zone data, or set the environment variable ZIC to a zic
1062 program to use during the build.])
1069 # For each platform, we need to know about any special compile and link
1070 # libraries, and whether the normal C function names are thread-safe.
1071 # See the comment at the top of src/port/thread.c for more information.
1072 # WIN32 doesn't need the pthread tests; it always uses threads
1074 # These tests are run before the library-tests, because linking with the
1075 # other libraries can pull in the pthread functions as a side-effect. We
1076 # want to use the -pthread or similar flags directly, and not rely on
1077 # the side-effects of linking with some other library.
1079 # note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1080 # invocation below is the first one in the script, and autoconf generates
1081 # additional code for that, which must not be inside the if-block. AS_IF
1082 # knows how to do that.
1083 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1085 AX_PTHREAD # set thread flags
1087 # Some platforms use these, so just define them. They can't hurt if they
1088 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1089 # enables 5-arg getpwuid_r, among other things.
1090 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1092 # Check for *_r functions
1095 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1096 LIBS="$LIBS $PTHREAD_LIBS"
1098 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1099 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1101 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1103 # Do test here with the proper thread flags
1104 PGAC_FUNC_STRERROR_R_INT
1110 # do not use values from template file
1115 AC_SUBST(PTHREAD_CFLAGS)
1116 AC_SUBST(PTHREAD_LIBS)
1122 ## Most libraries are included only if they demonstrably provide a function
1123 ## we need, but libm is an exception: always include it, because there are
1124 ## too many compilers that play cute optimization games that will break
1125 ## probes for standard functions such as pow().
1128 AC_CHECK_LIB(m, main)
1129 AC_SEARCH_LIBS(setproctitle, util)
1130 AC_SEARCH_LIBS(dlopen, dl)
1131 AC_SEARCH_LIBS(socket, [socket ws2_32])
1132 AC_SEARCH_LIBS(shl_load, dld)
1133 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1134 AC_SEARCH_LIBS(crypt, crypt)
1135 AC_SEARCH_LIBS(shm_open, rt)
1136 AC_SEARCH_LIBS(shm_unlink, rt)
1137 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1139 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1140 # Required for thread_test.c on Solaris
1141 AC_SEARCH_LIBS(sched_yield, rt)
1142 # Required for thread_test.c on Solaris 2.5:
1143 # Other ports use it too (HP-UX) so test unconditionally
1144 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1146 AC_SEARCH_LIBS(shmget, cygipc)
1148 if test "$with_readline" = yes; then
1150 if test x"$pgac_cv_check_readline" = x"no"; then
1151 AC_MSG_ERROR([readline library not found
1152 If you have readline already installed, see config.log for details on the
1153 failure. It is possible the compiler isn't looking in the proper directory.
1154 Use --without-readline to disable readline support.])
1158 if test "$with_zlib" = yes; then
1159 AC_CHECK_LIB(z, inflate, [],
1160 [AC_MSG_ERROR([zlib library not found
1161 If you have zlib already installed, see config.log for details on the
1162 failure. It is possible the compiler isn't looking in the proper directory.
1163 Use --without-zlib to disable zlib support.])])
1166 if test "$enable_spinlocks" = yes; then
1167 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1170 *** Not using spinlocks will cause poor performance.])
1173 if test "$enable_atomics" = yes; then
1174 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1177 *** Not using atomic operations will cause poor performance.])
1180 if test "$with_gssapi" = yes ; then
1181 if test "$PORTNAME" != "win32"; then
1182 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1183 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1185 LIBS="$LIBS -lgssapi32"
1189 if test "$with_openssl" = yes ; then
1191 if test "$PORTNAME" != "win32"; then
1192 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1193 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1195 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1196 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1198 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1199 # Functions introduced in OpenSSL 1.1.0. We used to check for
1200 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1201 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1202 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1204 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1205 # OpenSSL versions before 1.1.0 required setting callback functions, for
1206 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1207 # function was removed.
1208 AC_CHECK_FUNCS([CRYPTO_lock])
1211 if test "$with_pam" = yes ; then
1212 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1215 if test "$with_libxml" = yes ; then
1216 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1219 if test "$with_libxslt" = yes ; then
1220 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1223 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1224 if test "$with_ldap" = yes ; then
1226 if test "$PORTNAME" != "win32"; then
1227 AC_CHECK_LIB(ldap, ldap_bind, [],
1228 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1230 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1231 if test "$enable_thread_safety" = yes; then
1232 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1233 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1234 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1235 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1236 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1238 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1240 AC_CHECK_FUNCS([ldap_initialize])
1242 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1243 LDAP_LIBS_FE="-lwldap32"
1244 LDAP_LIBS_BE="-lwldap32"
1248 AC_SUBST(LDAP_LIBS_FE)
1249 AC_SUBST(LDAP_LIBS_BE)
1251 # for contrib/sepgsql
1252 if test "$with_selinux" = yes; then
1253 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1254 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1257 # for contrib/uuid-ossp
1258 if test "$with_uuid" = bsd ; then
1259 # On BSD, the UUID functions are in libc
1260 AC_CHECK_FUNC(uuid_to_string,
1262 [AC_MSG_ERROR([BSD UUID functions are not present])])
1263 elif test "$with_uuid" = e2fs ; then
1264 # On macOS, the UUID functions are in libc
1265 AC_CHECK_FUNC(uuid_generate,
1267 [AC_CHECK_LIB(uuid, uuid_generate,
1268 [UUID_LIBS="-luuid"],
1269 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1270 elif test "$with_uuid" = ossp ; then
1271 AC_CHECK_LIB(ossp-uuid, uuid_export,
1272 [UUID_LIBS="-lossp-uuid"],
1273 [AC_CHECK_LIB(uuid, uuid_export,
1274 [UUID_LIBS="-luuid"],
1275 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1286 AC_CHECK_HEADERS([atomic.h crypt.h fp_class.h getopt.h ieeefp.h ifaddrs.h langinfo.h mbarrier.h poll.h sys/epoll.h sys/ipc.h sys/prctl.h sys/procctl.h sys/pstat.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/sockio.h sys/tas.h sys/un.h termios.h ucred.h utime.h wchar.h wctype.h])
1288 # On BSD, test for net/if.h will fail unless sys/socket.h
1289 # is included first.
1290 AC_CHECK_HEADERS(net/if.h, [], [],
1291 [AC_INCLUDES_DEFAULT
1292 #include <sys/socket.h>
1295 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1296 # is included first.
1297 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1298 [AC_INCLUDES_DEFAULT
1299 #include <sys/param.h>
1302 # At least on IRIX, test for netinet/tcp.h will fail unless
1303 # netinet/in.h is included first.
1304 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1305 [AC_INCLUDES_DEFAULT
1306 #include <netinet/in.h>
1309 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1310 AC_CHECK_HEADERS(readline/readline.h, [],
1311 [AC_CHECK_HEADERS(readline.h, [],
1312 [AC_MSG_ERROR([readline header not found
1313 If you have readline already installed, see config.log for details on the
1314 failure. It is possible the compiler isn't looking in the proper directory.
1315 Use --without-readline to disable readline support.])])])
1316 AC_CHECK_HEADERS(readline/history.h, [],
1317 [AC_CHECK_HEADERS(history.h, [],
1318 [AC_MSG_ERROR([history header not found
1319 If you have readline already installed, see config.log for details on the
1320 failure. It is possible the compiler isn't looking in the proper directory.
1321 Use --without-readline to disable readline support.])])])
1324 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1325 # Some installations of libedit usurp /usr/include/readline/, which seems
1326 # bad practice, since in combined installations readline will have its headers
1327 # there. We might have to resort to AC_EGREP checks to make sure we found
1328 # the proper header...
1329 AC_CHECK_HEADERS(editline/readline.h, [],
1330 [AC_CHECK_HEADERS(readline.h, [],
1331 [AC_CHECK_HEADERS(readline/readline.h, [],
1332 [AC_MSG_ERROR([readline header not found
1333 If you have libedit already installed, see config.log for details on the
1334 failure. It is possible the compiler isn't looking in the proper directory.
1335 Use --without-readline to disable libedit support.])])])])
1336 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1337 # not be there at all. Hence, don't complain if not found. We must check
1338 # though, since in yet other versions it is an independent header.
1339 AC_CHECK_HEADERS(editline/history.h, [],
1340 [AC_CHECK_HEADERS(history.h, [],
1341 [AC_CHECK_HEADERS(readline/history.h)])])
1344 if test "$with_zlib" = yes; then
1345 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1346 If you have zlib already installed, see config.log for details on the
1347 failure. It is possible the compiler isn't looking in the proper directory.
1348 Use --without-zlib to disable zlib support.])])
1351 if test "$with_gssapi" = yes ; then
1352 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1353 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1356 if test "$with_openssl" = yes ; then
1357 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1358 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1361 if test "$with_pam" = yes ; then
1362 AC_CHECK_HEADERS(security/pam_appl.h, [],
1363 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1364 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1367 if test "$with_bsd_auth" = yes ; then
1368 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1371 if test "$with_systemd" = yes ; then
1372 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1375 if test "$with_libxml" = yes ; then
1376 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1379 if test "$with_libxslt" = yes ; then
1380 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1383 if test "$with_ldap" = yes ; then
1384 if test "$PORTNAME" != "win32"; then
1385 AC_CHECK_HEADERS(ldap.h, [],
1386 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1389 AC_CHECK_HEADERS(winldap.h, [],
1390 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1391 [AC_INCLUDES_DEFAULT
1392 #include <windows.h>
1397 if test "$with_bonjour" = yes ; then
1398 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1399 dnl At some point we might add something like
1400 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1401 dnl but right now, what that would mainly accomplish is to encourage
1402 dnl people to try to use the avahi implementation, which does not work.
1403 dnl If you want to use Apple's own Bonjour code on another platform,
1404 dnl just add -ldns_sd to LIBS manually.
1407 # for contrib/uuid-ossp
1408 if test "$with_uuid" = bsd ; then
1409 AC_CHECK_HEADERS(uuid.h,
1410 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1411 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1412 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1413 elif test "$with_uuid" = e2fs ; then
1414 AC_CHECK_HEADERS(uuid/uuid.h,
1415 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1416 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1417 [AC_CHECK_HEADERS(uuid.h,
1418 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1419 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1420 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1421 elif test "$with_uuid" = ossp ; then
1422 AC_CHECK_HEADERS(ossp/uuid.h,
1423 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1424 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1425 [AC_CHECK_HEADERS(uuid.h,
1426 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1427 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1428 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1431 if test "$PORTNAME" = "win32" ; then
1432 AC_CHECK_HEADERS(crtdefs.h)
1436 ## Types, structures, compiler characteristics
1439 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1442 PGAC_PRINTF_ARCHETYPE
1443 AC_C_FLEXIBLE_ARRAY_MEMBER
1445 PGAC_C_FUNCNAME_SUPPORT
1446 PGAC_C_STATIC_ASSERT
1448 PGAC_C_TYPES_COMPATIBLE
1449 PGAC_C_BUILTIN_BSWAP16
1450 PGAC_C_BUILTIN_BSWAP32
1451 PGAC_C_BUILTIN_BSWAP64
1452 PGAC_C_BUILTIN_CONSTANT_P
1453 PGAC_C_BUILTIN_UNREACHABLE
1454 PGAC_C_COMPUTED_GOTO
1455 PGAC_STRUCT_TIMEZONE
1457 PGAC_STRUCT_SOCKADDR_UN
1458 PGAC_STRUCT_SOCKADDR_STORAGE
1459 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1460 PGAC_STRUCT_ADDRINFO
1463 AC_TYPE_LONG_LONG_INT
1467 # MSVC doesn't cope well with defining restrict to __restrict, the
1468 # spelling it understands, because it conflicts with
1469 # __declspec(restrict). Therefore we define pg_restrict to the
1470 # appropriate definition, which presumably won't conflict.
1472 # Allow platforms with buggy compilers to force restrict to not be
1473 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1476 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1479 pg_restrict="$ac_cv_c_restrict"
1481 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1482 [Define to keyword to use for C99 restrict support, or to nothing if not
1485 AC_CHECK_TYPES([struct cmsgcred], [], [],
1486 [#include <sys/socket.h>
1487 #include <sys/param.h>
1488 #ifdef HAVE_SYS_UCRED_H
1489 #include <sys/ucred.h>
1492 AC_CHECK_TYPES([struct option], [], [],
1493 [#ifdef HAVE_GETOPT_H
1497 if test "$with_zlib" = yes; then
1498 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1499 # did not). While we could work around the lack of z_streamp, it
1500 # seems unwise to encourage people to use such old zlib versions...
1501 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1502 Use --without-zlib to disable zlib support.])],
1503 [#include <zlib.h>])
1506 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1509 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1510 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1511 [int a = 0; int *p = &a; int r;
1512 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1513 [pgac_cv_have_ppc_mutex_hint=yes],
1514 [pgac_cv_have_ppc_mutex_hint=no])
1515 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1516 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1517 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1522 # Check largefile support. You might think this is a system service not a
1523 # compiler characteristic, but you'd be wrong. We must check this before
1524 # probing existence of related functions such as fseeko, since the largefile
1525 # defines can affect what is generated for that.
1526 if test "$PORTNAME" != "win32"; then
1528 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1529 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1530 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1531 dnl versions where the feature actually works, it's on by default anyway.
1532 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1535 # Check for largefile support (must be after AC_SYS_LARGEFILE)
1536 AC_CHECK_SIZEOF([off_t])
1538 # If we don't have largefile support, can't handle segsize >= 2GB.
1539 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1540 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1543 AC_CHECK_SIZEOF([bool], [],
1544 [#ifdef HAVE_STDBOOL_H
1545 #include <stdbool.h>
1550 ## Functions, global variables
1553 PGAC_VAR_INT_TIMEZONE
1554 AC_FUNC_ACCEPT_ARGTYPES
1555 PGAC_FUNC_GETTIMEOFDAY_1ARG
1556 PGAC_FUNC_WCSTOMBS_L
1558 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1559 # symbols that that library has no business exposing to the world. Pending
1560 # acquisition of a clue by those developers, ignore libedit (including its
1561 # possible alias of libreadline) while checking for everything else.
1562 LIBS_including_readline="$LIBS"
1563 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1565 AC_CHECK_FUNCS([cbrt clock_gettime fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate ppoll pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
1567 AC_REPLACE_FUNCS(fseeko)
1569 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1570 # Mingw uses macros to access Win32 API calls
1572 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1573 ac_cv_func_fseeko=yes;;
1578 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1579 # by calling it, 2009-04-02
1580 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1581 if test "$PORTNAME" != "solaris"; then
1582 AC_CHECK_FUNCS(posix_fadvise)
1583 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1586 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1587 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1588 # This is probably only present on macOS, but may as well check always
1589 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1591 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1594 AC_CHECK_TYPE([struct sockaddr_in6],
1595 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])
1598 [$ac_includes_default
1599 #include <netinet/in.h>])
1602 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1603 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1604 [#include <machine/vmparam.h>
1605 #include <sys/exec.h>
1607 [PS_STRINGS->ps_nargvstr = 1;
1608 PS_STRINGS->ps_argvstr = "foo";])],
1609 [pgac_cv_var_PS_STRINGS=yes],
1610 [pgac_cv_var_PS_STRINGS=no])])
1611 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1612 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1616 # We use our snprintf.c emulation if either snprintf() or vsnprintf()
1617 # is missing. Yes, there are machines that have only one. We may
1618 # also decide to use snprintf.c if snprintf() is present but does not
1619 # have all the features we need --- see below.
1621 if test "$PORTNAME" = "win32"; then
1622 # Win32 gets snprintf.c built unconditionally.
1624 # To properly translate all NLS languages strings, we must support the
1625 # *printf() %$ format, which allows *printf() arguments to be selected
1626 # by position in the translated string.
1628 # libintl versions < 0.13 use the native *printf() functions, and Win32
1629 # *printf() doesn't understand %$, so we must use our /port versions,
1630 # which do understand %$. libintl versions >= 0.13 include their own
1631 # *printf versions on Win32. The libintl 0.13 release note text is:
1633 # C format strings with positions, as they arise when a translator
1634 # needs to reorder a sentence, are now supported on all platforms.
1635 # On those few platforms (NetBSD and Woe32) for which the native
1636 # printf()/fprintf()/... functions don't support such format
1637 # strings, replacements are provided through <libintl.h>.
1639 # We could use libintl >= 0.13's *printf() if we were sure that we had
1640 # a libintl >= 0.13 at runtime, but seeing that there is no clean way
1641 # to guarantee that, it is best to just use our own, so we are sure to
1642 # get %$ support. In include/port.h we disable the *printf() macros
1643 # that might have been defined by libintl.
1645 # We do this unconditionally whether NLS is used or not so we are sure
1646 # that all Win32 libraries and binaries behave the same.
1647 pgac_need_repl_snprintf=yes
1649 pgac_need_repl_snprintf=no
1650 AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes)
1651 AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes)
1655 # Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
1656 # include/c.h will provide declarations. Note this is a separate test
1657 # from whether the functions exist in the C library --- there are
1658 # systems that have the functions but don't bother to declare them :-(
1660 AC_CHECK_DECLS([snprintf, vsnprintf])
1663 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1664 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1665 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1669 [return isinf(glob_double) ? 0 : 1;])],
1670 [ac_cv_func_isinf=yes],
1671 [ac_cv_func_isinf=no])])
1673 if test $ac_cv_func_isinf = yes ; then
1674 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1677 # Look for a way to implement a substitute for isinf()
1678 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1681 AC_REPLACE_FUNCS([crypt dlopen fls getopt getrusage inet_aton mkdtemp random rint srandom strerror strlcat strlcpy strnlen])
1685 # Windows uses a specialised env handler
1686 # and doesn't need a replacement getpeereid because it doesn't use
1689 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1690 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1691 ac_cv_func_unsetenv=yes
1692 ac_cv_func_getpeereid=yes;;
1694 AC_REPLACE_FUNCS([unsetenv getpeereid])
1698 # System's version of getaddrinfo(), if any, may be used only if we found
1699 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1700 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1701 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1702 test "$PORTNAME" != "win32"; then
1703 AC_REPLACE_FUNCS([getaddrinfo])
1705 AC_LIBOBJ(getaddrinfo)
1708 # Similarly, use system's getopt_long() only if system provides struct option.
1709 if test x"$ac_cv_type_struct_option" = xyes ; then
1710 AC_REPLACE_FUNCS([getopt_long])
1712 AC_LIBOBJ(getopt_long)
1715 # Solaris' getopt() doesn't do what we want for long options, so always use
1716 # our version on that platform.
1717 if test "$PORTNAME" = "solaris"; then
1721 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1722 # so always use our version on Windows.
1723 if test "$PORTNAME" = "win32"; then
1725 AC_LIBOBJ(getopt_long)
1728 # Win32 (really MinGW) support
1729 if test "$PORTNAME" = "win32"; then
1730 AC_REPLACE_FUNCS(gettimeofday)
1736 AC_LIBOBJ(win32error)
1737 AC_LIBOBJ(win32security)
1738 AC_LIBOBJ(win32setlocale)
1739 AC_DEFINE([HAVE_SYMLINK], 1,
1740 [Define to 1 if you have the `symlink' function.])
1741 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1742 #define WIN32_LEAN_AND_MEAN
1743 #include <windows.h>
1745 #include <dbghelp.h>])
1747 if test x"$pgac_minidump_type" = x"yes" ; then
1748 AC_SUBST(have_win32_dbghelp,yes)
1750 AC_SUBST(have_win32_dbghelp,no)
1753 # Cygwin needs only a bit of that
1754 if test "$PORTNAME" = "cygwin"; then
1758 AC_CHECK_DECLS([sys_siglist], [], [],
1759 [#include <signal.h>
1760 /* NetBSD declares sys_siglist in unistd.h. */
1761 #ifdef HAVE_UNISTD_H
1762 # include <unistd.h>
1766 AC_CHECK_FUNC(syslog,
1767 [AC_CHECK_HEADER(syslog.h,
1768 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1770 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1771 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1772 [extern int opterr; opterr = 1;])],
1773 [pgac_cv_var_int_opterr=yes],
1774 [pgac_cv_var_int_opterr=no])])
1775 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1776 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1779 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1780 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1781 [extern int optreset; optreset = 1;])],
1782 [pgac_cv_var_int_optreset=yes],
1783 [pgac_cv_var_int_optreset=no])])
1784 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1785 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1788 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1789 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1790 # strto[u]ll may exist but not be declared
1791 AC_CHECK_DECLS([strtoll, strtoull])
1793 if test "$with_icu" = yes; then
1794 ac_save_CPPFLAGS=$CPPFLAGS
1795 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1797 # Verify we have ICU's header files
1798 AC_CHECK_HEADER(unicode/ucol.h, [],
1799 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1801 CPPFLAGS=$ac_save_CPPFLAGS
1804 # Lastly, restore full LIBS list and check for readline/libedit symbols
1805 LIBS="$LIBS_including_readline"
1807 if test "$with_readline" = yes; then
1808 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1809 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1810 AC_CHECK_FUNCS([append_history history_truncate_file])
1814 # This test makes sure that run tests work at all. Sometimes a shared
1815 # library is found by the linker, but the runtime linker can't find it.
1816 # This check should come after all modifications of compiler or linker
1817 # variables, and before any other run tests.
1818 AC_MSG_CHECKING([test program])
1819 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1820 [AC_MSG_RESULT(ok)],
1821 [AC_MSG_RESULT(failed)
1823 Could not execute a simple test program. This may be a problem
1824 related to locating shared libraries. Check the file 'config.log'
1825 for the exact reason.]])],
1826 [AC_MSG_RESULT([cross-compiling])])
1828 # --------------------
1829 # Run tests below here
1830 # --------------------
1832 # For NLS, force use of our snprintf if system's doesn't do arg control.
1833 # See comment above at snprintf test for details.
1834 if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then
1835 PGAC_FUNC_SNPRINTF_ARG_CONTROL
1836 if test $pgac_cv_snprintf_arg_control != yes ; then
1837 pgac_need_repl_snprintf=yes
1842 dnl Check to see if we have a working 64-bit integer type.
1843 dnl Since Postgres 8.4, we no longer support compilers without a working
1844 dnl 64-bit type; but we have to determine whether that type is called
1845 dnl "long int" or "long long int".
1847 PGAC_TYPE_64BIT_INT([long int])
1849 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1850 pg_int64_type="long int"
1852 PGAC_TYPE_64BIT_INT([long long int])
1853 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1854 pg_int64_type="long long int"
1856 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1860 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1861 [Define to the name of a signed 64-bit integer type.])
1863 # Select the printf length modifier that goes with that, too.
1864 # (This used to be bound up with replacement-snprintf selection, but now
1865 # we assume that the native *printf functions use standard length modifiers.)
1866 if test x"$pg_int64_type" = x"long long int" ; then
1867 INT64_MODIFIER='"ll"'
1869 INT64_MODIFIER='"l"'
1872 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1873 [Define to the appropriate printf length modifier for 64-bit ints.])
1875 # Force use of our snprintf if the system's doesn't support the %z flag.
1876 # (Note this test uses PG_INT64_TYPE and INT64_MODIFIER.)
1877 if test "$pgac_need_repl_snprintf" = no; then
1878 PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
1879 if test "$pgac_cv_snprintf_size_t_support" != yes; then
1880 pgac_need_repl_snprintf=yes
1884 # Force use of our snprintf if the system's doesn't handle buffer overrun
1885 # as specified by C99.
1886 if test "$pgac_need_repl_snprintf" = no; then
1887 PGAC_FUNC_SNPRINTF_C99_RESULT
1888 if test "$pgac_cv_snprintf_c99_result" != yes; then
1889 pgac_need_repl_snprintf=yes
1893 # Now we have checked all the reasons to replace snprintf
1894 if test $pgac_need_repl_snprintf = yes; then
1895 AC_DEFINE(USE_REPL_SNPRINTF, 1, [Use replacement snprintf() functions.])
1899 # has to be down here, rather than with the other builtins, because
1900 # the test uses PG_INT64_TYPE.
1901 PGAC_C_BUILTIN_OP_OVERFLOW
1903 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1904 AC_CHECK_SIZEOF([void *])
1905 AC_CHECK_SIZEOF([size_t])
1906 AC_CHECK_SIZEOF([long])
1908 # Decide whether float4 is passed by value: user-selectable, enabled by default
1909 AC_MSG_CHECKING([whether to build with float4 passed by value])
1910 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1911 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1912 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1913 float4passbyval=true],
1914 [float4passbyval=false])
1915 AC_MSG_RESULT([$enable_float4_byval])
1916 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1918 # Decide whether float8 is passed by value.
1919 # Note: this setting also controls int8 and related types such as timestamp.
1920 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1921 # If not, trying to select it is an error.
1922 AC_MSG_CHECKING([whether to build with float8 passed by value])
1923 if test $ac_cv_sizeof_void_p -ge 8 ; then
1924 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1926 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1927 if test "$enable_float8_byval" = yes ; then
1928 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1931 if test "$enable_float8_byval" = yes ; then
1932 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1933 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1934 float8passbyval=true
1936 float8passbyval=false
1938 AC_MSG_RESULT([$enable_float8_byval])
1939 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1941 # Determine memory alignment requirements for the basic C data types.
1943 AC_CHECK_ALIGNOF(short)
1944 AC_CHECK_ALIGNOF(int)
1945 AC_CHECK_ALIGNOF(long)
1946 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1947 AC_CHECK_ALIGNOF(long long int)
1949 AC_CHECK_ALIGNOF(double)
1951 # Compute maximum alignment of any basic type.
1952 # We assume long's alignment is at least as strong as char, short, or int;
1953 # but we must check long long (if it is being used for int64) and double.
1954 # Note that we intentionally do not consider any types wider than 64 bits,
1955 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1956 # for disk and memory space.
1958 MAX_ALIGNOF=$ac_cv_alignof_long
1959 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1960 MAX_ALIGNOF=$ac_cv_alignof_double
1962 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1963 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1965 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1968 # Some platforms predefine the types int8, int16, etc. Only check
1969 # a (hopefully) representative subset.
1970 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1971 [#include <stdio.h>])
1973 # Some compilers offer a 128-bit integer scalar type.
1974 PGAC_TYPE_128BIT_INT
1976 # Check for various atomic operations now that we have checked how to declare
1978 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1979 PGAC_HAVE_GCC__SYNC_INT32_TAS
1980 PGAC_HAVE_GCC__SYNC_INT32_CAS
1981 PGAC_HAVE_GCC__SYNC_INT64_CAS
1982 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1983 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1986 # Check for x86 cpuid instruction
1987 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1988 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1989 [[unsigned int exx[4] = {0, 0, 0, 0};
1990 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
1992 [pgac_cv__get_cpuid="yes"],
1993 [pgac_cv__get_cpuid="no"])])
1994 if test x"$pgac_cv__get_cpuid" = x"yes"; then
1995 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
1998 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
1999 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
2000 [[unsigned int exx[4] = {0, 0, 0, 0};
2001 __get_cpuid(exx[0], 1);
2003 [pgac_cv__cpuid="yes"],
2004 [pgac_cv__cpuid="no"])])
2005 if test x"$pgac_cv__cpuid" = x"yes"; then
2006 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2009 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2011 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2012 # with the default compiler flags. If not, check if adding the -msse4.2
2013 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2014 PGAC_SSE42_CRC32_INTRINSICS([])
2015 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2016 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2018 AC_SUBST(CFLAGS_SSE42)
2020 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2021 # define __SSE4_2__ in that case.
2022 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2024 #error __SSE4_2__ not defined
2026 ])], [SSE4_2_TARGETED=1])
2028 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2030 # First check if __crc32c* intrinsics can be used with the default compiler
2031 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2032 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2033 PGAC_ARMV8_CRC32C_INTRINSICS([])
2034 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2035 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2037 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2039 # Select CRC-32C implementation.
2041 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2042 # use the special CRC instructions for calculating CRC-32C. If we're not
2043 # targeting such a processor, but we can nevertheless produce code that uses
2044 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2045 # implementations and select which one to use at runtime, depending on whether
2046 # SSE 4.2 is supported by the processor we're running on.
2048 # Similarly, if we are targeting an ARM processor that has the CRC
2049 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2050 # we're not targeting such a processor, but can nevertheless produce code that
2051 # uses the CRC instructions, compile both, and select at runtime.
2053 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2054 # in the template or configure command line.
2055 if test x"$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
2056 # Use Intel SSE 4.2 if available.
2057 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2060 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2061 # the runtime check.
2062 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2063 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2065 # Use ARM CRC Extension if available.
2066 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2069 # ARM CRC Extension, with runtime check?
2070 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2071 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2073 # fall back to slicing-by-8 algorithm, which doesn't require any
2074 # special CPU support.
2075 USE_SLICING_BY_8_CRC32C=1
2082 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2083 AC_MSG_CHECKING([which CRC-32C implementation to use])
2084 if test x"$USE_SSE42_CRC32C" = x"1"; then
2085 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2086 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2087 AC_MSG_RESULT(SSE 4.2)
2089 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2090 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2091 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2092 AC_MSG_RESULT(SSE 4.2 with runtime check)
2094 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2095 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2096 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2097 AC_MSG_RESULT(ARMv8 CRC instructions)
2099 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2100 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2101 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2102 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2104 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2105 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2106 AC_MSG_RESULT(slicing-by-8)
2111 AC_SUBST(PG_CRC32C_OBJS)
2114 # Select semaphore implementation type.
2115 if test "$PORTNAME" != "win32"; then
2116 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2117 # Need sem_open for this
2118 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2120 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2121 # Need sem_init for this
2122 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2124 AC_MSG_CHECKING([which semaphore API to use])
2125 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2126 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2127 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2128 sematype="named POSIX"
2130 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2131 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2132 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2133 sematype="unnamed POSIX"
2135 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2136 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2140 AC_MSG_RESULT([$sematype])
2142 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2143 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2147 # Select shared-memory implementation type.
2148 if test "$PORTNAME" != "win32"; then
2149 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2150 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2152 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2153 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2156 # Select random number source
2158 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2159 # in the template or configure command line.
2161 # If not selected manually, try to select a source automatically.
2162 if test "$enable_strong_random" = "yes" && test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2163 if test x"$with_openssl" = x"yes" ; then
2164 USE_OPENSSL_RANDOM=1
2165 elif test "$PORTNAME" = "win32" ; then
2168 AC_CHECK_FILE([/dev/urandom], [], [])
2170 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2176 AC_MSG_CHECKING([which random number source to use])
2177 if test "$enable_strong_random" = yes ; then
2178 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2179 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2180 AC_MSG_RESULT([OpenSSL])
2181 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2182 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2183 AC_MSG_RESULT([Windows native])
2184 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2185 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2186 AC_MSG_RESULT([/dev/urandom])
2189 no source of strong random numbers was found
2190 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers,
2191 for authentication protocols. You can use --disable-strong-random to use a
2192 built-in pseudo random number generator, but that may be insecure.])
2194 AC_DEFINE(HAVE_STRONG_RANDOM, 1, [Define to use have a strong random number source])
2196 AC_MSG_RESULT([weak builtin PRNG])
2198 *** Not using a strong random number source may be insecure.])
2201 # If not set in template file, set bytes to use libc memset()
2202 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2203 MEMSET_LOOP_LIMIT=1024
2205 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2208 if test "$enable_nls" = yes ; then
2212 # Check for Tcl configuration script tclConfig.sh
2213 if test "$with_tcl" = yes; then
2214 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2215 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2216 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2217 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2218 if test "$TCL_SHARED_BUILD" != 1; then
2219 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2220 Use --without-tcl to disable building PL/Tcl.])
2222 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2223 ac_save_CPPFLAGS=$CPPFLAGS
2224 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2225 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2226 CPPFLAGS=$ac_save_CPPFLAGS
2229 # check for <perl.h>
2230 if test "$with_perl" = yes; then
2231 ac_save_CPPFLAGS=$CPPFLAGS
2232 CPPFLAGS="$CPPFLAGS -I$perl_archlibexp/CORE"
2233 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2234 [#include <EXTERN.h>])
2235 # While we're at it, check that we can link to libperl.
2236 # On most platforms, if perl.h is there then libperl.so will be too, but at
2237 # this writing Debian packages them separately. There is no known reason to
2238 # waste cycles on separate probes for the Tcl or Python libraries, though.
2239 pgac_save_LIBS=$LIBS
2240 LIBS="$perl_embed_ldflags"
2241 AC_MSG_CHECKING([for libperl])
2242 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2245 ], [perl_alloc();])],
2246 [AC_MSG_RESULT(yes)],
2248 AC_MSG_ERROR([libperl library is required for Perl])])
2249 LIBS=$pgac_save_LIBS
2250 CPPFLAGS=$ac_save_CPPFLAGS
2253 # check for <Python.h>
2254 if test "$with_python" = yes; then
2255 ac_save_CPPFLAGS=$CPPFLAGS
2256 CPPFLAGS="$python_includespec $CPPFLAGS"
2257 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2258 CPPFLAGS=$ac_save_CPPFLAGS
2262 # Check for DocBook and tools
2265 PGAC_CHECK_DOCBOOK(4.2)
2266 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2267 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2268 PGAC_PATH_PROGS(FOP, fop)
2271 # Check for test tools
2273 if test "$enable_tap_tests" = yes; then
2274 # Check for necessary modules, unless user has specified the "prove" to use;
2275 # in that case it's her responsibility to have a working configuration.
2276 # (prove might be part of a different Perl installation than perl, eg on
2277 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2278 if test -z "$PROVE"; then
2279 # Test::More and Time::HiRes are supposed to be part of core Perl,
2280 # but some distros omit them in a minimal installation.
2281 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], ,
2282 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])])
2284 # Now make sure we know where prove is
2285 PGAC_PATH_PROGS(PROVE, prove)
2286 if test -z "$PROVE"; then
2287 AC_MSG_ERROR([prove not found])
2293 # We have to run the thread test near the end so we have all our symbols
2294 # defined. Cross compiling throws a warning.
2296 if test "$enable_thread_safety" = yes; then
2297 if test "$PORTNAME" != "win32"
2299 AC_MSG_CHECKING([thread safety of required library functions])
2303 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2304 LIBS="$LIBS $PTHREAD_LIBS"
2306 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2307 [AC_MSG_RESULT(yes)],
2309 AC_MSG_ERROR([thread test program failed
2310 This platform is not thread-safe. Check the file 'config.log' or compile
2311 and run src/test/thread/thread_test for the exact reason.
2312 Use --disable-thread-safety to disable thread safety.])],
2313 [AC_MSG_RESULT(maybe)
2315 *** Skipping thread test program because of cross-compile build.
2316 *** Run the program in src/test/thread on the target machine.
2321 AC_MSG_WARN([*** skipping thread test on Win32])
2325 # If compiler will take -Wl,--as-needed (or various platform-specific
2326 # spellings thereof) then add that to LDFLAGS. This is much easier than
2327 # trying to filter LIBS to the minimum for each executable.
2328 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2329 # libreadline; therefore we postpone testing it until we know what library
2330 # dependencies readline has. The test code will try to link with $LIBS.
2331 if test "$with_readline" = yes; then
2332 link_test_func=readline
2337 if test "$PORTNAME" = "darwin"; then
2338 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2339 elif test "$PORTNAME" = "openbsd"; then
2340 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2342 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2345 # Create compiler version string
2346 if test x"$GCC" = x"yes" ; then
2347 cc_string=`${CC} --version | sed q`
2348 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2349 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2350 cc_string=`${CC} -V 2>&1 | sed q`
2355 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2356 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2357 [A string containing the version number, platform, and C compiler])
2359 # Supply a numeric version string for use by 3rd party add-ons
2360 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2361 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2363 $AWK '{printf "%d%04d", $1, $2}'`"]
2364 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2365 AC_SUBST(PG_VERSION_NUM)
2368 # Begin output steps
2370 AC_MSG_NOTICE([using compiler=$cc_string])
2371 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2372 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2373 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2374 # Currently only used when LLVM is used
2375 if test "$with_llvm" = yes ; then
2376 AC_MSG_NOTICE([using CXX=$CXX])
2377 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2378 AC_MSG_NOTICE([using CLANG=$CLANG])
2379 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2380 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2383 # prepare build tree if outside source tree
2384 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2385 # Note 2: /bin/pwd might be better than shell's built-in at getting
2386 # a symlink-free name.
2387 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2391 if test "$no_create" != yes; then
2392 _AS_ECHO_N([preparing build tree... ])
2393 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2394 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2395 || AC_MSG_ERROR(failed)
2399 AC_SUBST(vpath_build)
2402 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2405 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2406 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2407 src/include/pg_config_os.h:src/include/port/${template}.h
2408 src/Makefile.port:src/makefiles/Makefile.${template}
2411 if test "$PORTNAME" = "win32"; then
2412 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2413 # Links sometimes fail undetected on Mingw -
2414 # so here we detect it and warn the user
2415 for FILE in $CONFIG_LINKS
2417 # test -e works for symlinks in the MinGW console
2418 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2423 AC_CONFIG_HEADERS([src/include/pg_config.h],
2425 # Update timestamp for pg_config.h (see Makefile.global)
2426 echo >src/include/stamp-h
2429 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2431 # Update timestamp for pg_config_ext.h (see Makefile.global)
2432 echo >src/include/stamp-ext-h
2435 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2436 [echo >src/interfaces/ecpg/include/stamp-h])