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], [16devel], [pgsql-bugs@lists.postgresql.org], [], [https://www.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.ac' but it is then
25 your responsibility whether the result works or not.])])
26 AC_COPYRIGHT([Copyright (c) 1996-2022, 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_DEFINE_UNQUOTED(CONFIGURE_ARGS, ["$ac_configure_args"], [Saved arguments from configure])
32 [PG_MAJORVERSION=`expr "$PACKAGE_VERSION" : '\([0-9][0-9]*\)'`]
33 [PG_MINORVERSION=`expr "$PACKAGE_VERSION" : '.*\.\([0-9][0-9]*\)'`]
34 test -n "$PG_MINORVERSION" || PG_MINORVERSION=0
35 AC_SUBST(PG_MAJORVERSION)
36 AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major version as a string])
37 AC_DEFINE_UNQUOTED(PG_MAJORVERSION_NUM, $PG_MAJORVERSION, [PostgreSQL major version number])
38 AC_DEFINE_UNQUOTED(PG_MINORVERSION_NUM, $PG_MINORVERSION, [PostgreSQL minor version number])
40 PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version],
41 [PG_VERSION="$PACKAGE_VERSION$withval"],
42 [PG_VERSION="$PACKAGE_VERSION"])
43 AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string])
48 AC_MSG_CHECKING([which template to use])
50 PGAC_ARG_REQ(with, template, [NAME], [override operating system template],
53 list) echo; ls "$srcdir/src/template"; exit;;
54 *) if test -f "$srcdir/src/template/$with_template" ; then
57 AC_MSG_ERROR(['$withval' is not a valid template name. Use 'list' for a list.])
62 # --with-template not given
66 cygwin*|msys*) template=cygwin ;;
67 darwin*) template=darwin ;;
68 dragonfly*) template=netbsd ;;
69 freebsd*) template=freebsd ;;
70 linux*|gnu*|k*bsd*-gnu)
72 mingw*) template=win32 ;;
73 netbsd*) template=netbsd ;;
74 openbsd*) template=openbsd ;;
75 solaris*) template=solaris ;;
78 if test x"$template" = x"" ; then
80 *******************************************************************
81 PostgreSQL has apparently not been ported to your platform yet.
82 To try a manual configuration, look into the src/template directory
83 for a similar platform and use the '--with-template=' option.
85 Please also contact <]AC_PACKAGE_BUGREPORT[> to see about
86 rectifying this. Include the above 'checking host system type...'
88 *******************************************************************
94 AC_MSG_RESULT([$template])
99 # Initialize default assumption that we do not need separate assembly code
100 # for TAS (test-and-set). This can be overridden by the template file
101 # when it's executed.
105 # Default, works for most platforms, override in template file if needed
111 ## Command line options
115 # Add non-standard directories to the include path
117 PGAC_ARG_REQ(with, includes, [DIRS], [look for additional header files in DIRS])
121 # Add non-standard directories to the library search path
123 PGAC_ARG_REQ(with, libraries, [DIRS], [look for additional libraries in DIRS],
124 [LIBRARY_DIRS=$withval])
126 PGAC_ARG_REQ(with, libs, [DIRS], [alternative spelling of --with-libraries],
127 [LIBRARY_DIRS=$withval])
131 # 64-bit integer date/time storage is now the only option, but to avoid
132 # unnecessary breakage of build scripts, continue to accept an explicit
133 # "--enable-integer-datetimes" switch.
135 PGAC_ARG_BOOL(enable, integer-datetimes, yes, [obsolete option, no longer supported],
137 [AC_MSG_ERROR([--disable-integer-datetimes is no longer supported])])
143 AC_MSG_CHECKING([whether NLS is wanted])
144 PGAC_ARG_OPTARG(enable, nls,
145 [LANGUAGES], [enable Native Language Support],
147 [WANTED_LANGUAGES=$enableval],
148 [AC_DEFINE(ENABLE_NLS, 1,
149 [Define to 1 if you want National Language Support. (--enable-nls)])])
150 AC_MSG_RESULT([$enable_nls])
152 AC_SUBST(WANTED_LANGUAGES)
155 # Default port number (--with-pgport), default 5432
157 AC_MSG_CHECKING([for default port number])
158 PGAC_ARG_REQ(with, pgport, [PORTNUM], [set default port number [5432]],
159 [default_port=$withval],
161 AC_MSG_RESULT([$default_port])
162 # Need both of these because some places want an integer and some a string
163 AC_DEFINE_UNQUOTED(DEF_PGPORT, ${default_port},
164 [Define to the default TCP port number on which the server listens and
165 to which clients will try to connect. This can be overridden at run-time,
166 but it's convenient if your clients have the right default compiled in.
167 (--with-pgport=PORTNUM)])
168 AC_DEFINE_UNQUOTED(DEF_PGPORT_STR, "${default_port}",
169 [Define to the default TCP port number as a string constant.])
170 AC_SUBST(default_port)
172 # It's worth validating port; you can get very confusing errors otherwise
173 if test x"$default_port" = x""; then
174 AC_MSG_ERROR([invalid --with-pgport specification: empty string])
175 elif test ! x`echo "$default_port" | sed -e 's/[[0-9]]*//'` = x""; then
176 AC_MSG_ERROR([invalid --with-pgport specification: must be a number])
177 elif test ! x`echo "$default_port" | sed -e 's/^0.//'` = x"$default_port"; then
178 AC_MSG_ERROR([invalid --with-pgport specification: must not have leading 0])
179 elif test "$default_port" -lt "1" -o "$default_port" -gt "65535"; then
180 AC_MSG_ERROR([invalid --with-pgport specification: must be between 1 and 65535])
184 # '-rpath'-like feature can be disabled
186 PGAC_ARG_BOOL(enable, rpath, yes,
187 [do not embed shared library search path in executables])
188 AC_SUBST(enable_rpath)
193 PGAC_ARG_BOOL(enable, spinlocks, yes,
194 [do not use spinlocks])
199 PGAC_ARG_BOOL(enable, atomics, yes,
200 [do not use atomic operations])
203 # --enable-debug adds -g to compiler flags
205 PGAC_ARG_BOOL(enable, debug, no,
206 [build with debugging symbols (-g)])
207 AC_SUBST(enable_debug)
210 # --enable-profiling enables gcc profiling
212 PGAC_ARG_BOOL(enable, profiling, no,
213 [build with profiling enabled ])
216 # --enable-coverage enables generation of code coverage metrics with gcov
218 PGAC_ARG_BOOL(enable, coverage, no,
219 [build with coverage testing instrumentation],
220 [PGAC_PATH_PROGS(GCOV, gcov)
221 if test -z "$GCOV"; then
222 AC_MSG_ERROR([gcov not found])
224 PGAC_PATH_PROGS(LCOV, lcov)
225 if test -z "$LCOV"; then
226 AC_MSG_ERROR([lcov not found])
228 PGAC_PATH_PROGS(GENHTML, genhtml)
229 if test -z "$GENHTML"; then
230 AC_MSG_ERROR([genhtml not found])
232 AC_SUBST(enable_coverage)
237 PGAC_ARG_BOOL(enable, dtrace, no,
238 [build with DTrace support],
239 [PGAC_PATH_PROGS(DTRACE, dtrace)
240 if test -z "$DTRACE"; then
241 AC_MSG_ERROR([dtrace not found])
243 AC_SUBST(DTRACEFLAGS)])
244 AC_SUBST(enable_dtrace)
249 PGAC_ARG_BOOL(enable, tap-tests, no,
250 [enable TAP tests (requires Perl and IPC::Run)])
251 AC_SUBST(enable_tap_tests)
256 AC_MSG_CHECKING([for block size])
257 PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]],
258 [blocksize=$withval],
267 *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.])
269 AC_MSG_RESULT([${blocksize}kB])
271 AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [
272 Size of a disk block --- this also limits the size of a tuple. You
273 can set it bigger if you need bigger tuples (although TOAST should
274 reduce the need to have large tuples, since fields can be spread
275 across multiple tuples).
277 BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ
278 is currently 2^15 (32768). This is determined by the 15-bit widths
279 of the lp_off and lp_len fields in ItemIdData (see
280 include/storage/itemid.h).
282 Changing BLCKSZ requires an initdb.
286 # Relation segment size
288 AC_MSG_CHECKING([for segment size])
289 PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]],
292 # this expression is set up to avoid unnecessary integer overflow
293 # blocksize is already guaranteed to be a factor of 1024
294 RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024`
295 test $? -eq 0 || exit 1
296 AC_MSG_RESULT([${segsize}GB])
298 AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [
299 RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
300 Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
301 relations bigger than that are divided into multiple files.
303 RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size.
304 This is often 2 GB or 4GB in a 32-bit operating system, unless you
305 have large file support enabled. By default, we make the limit 1 GB
306 to avoid any possible integer-overflow problems within the OS.
307 A limit smaller than necessary only means we divide a large
308 relation into more chunks than necessary, so it seems best to err
309 in the direction of a small limit.
311 A power-of-2 value is recommended to save a few cycles in md.c,
312 but is not absolutely required.
314 Changing RELSEG_SIZE requires an initdb.
320 AC_MSG_CHECKING([for WAL block size])
321 PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]],
322 [wal_blocksize=$withval],
324 case ${wal_blocksize} in
325 1) XLOG_BLCKSZ=1024;;
326 2) XLOG_BLCKSZ=2048;;
327 4) XLOG_BLCKSZ=4096;;
328 8) XLOG_BLCKSZ=8192;;
329 16) XLOG_BLCKSZ=16384;;
330 32) XLOG_BLCKSZ=32768;;
331 64) XLOG_BLCKSZ=65536;;
332 *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.])
334 AC_MSG_RESULT([${wal_blocksize}kB])
336 AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [
337 Size of a WAL file block. This need have no particular relation to BLCKSZ.
338 XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O,
339 XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O
340 buffers, else direct I/O may fail.
342 Changing XLOG_BLCKSZ requires an initdb.
349 # For historical reasons you can also use --with-CC to specify the C compiler
350 # to use, although the standard way to do this is to set the CC environment
352 PGAC_ARG_REQ(with, CC, [CMD], [set compiler (deprecated)], [CC=$with_CC])
355 aix) pgac_cc_list="gcc xlc"; pgac_cxx_list="g++ xlC";;
356 *) pgac_cc_list="gcc cc"; pgac_cxx_list="g++ c++";;
359 AC_PROG_CC([$pgac_cc_list])
362 # Error out if the compiler does not support C99, as the codebase
364 if test "$ac_cv_prog_cc_c99" = no; then
365 AC_MSG_ERROR([C compiler "$CC" does not support C99])
368 AC_PROG_CXX([$pgac_cxx_list])
370 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
371 # but has idiosyncrasies of its own. We assume icc will define
372 # __INTEL_COMPILER regardless of CFLAGS.
373 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER
375 @%:@endif])], [ICC=yes], [ICC=no])
377 # Check if it's Sun Studio compiler. We assume that
378 # __SUNPRO_C will be defined for Sun Studio compilers
379 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C
381 @%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
383 AC_SUBST(SUN_STUDIO_CC)
389 # Checked early because subsequent tests depend on it.
390 PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support],
391 [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])])
393 dnl must use AS_IF here, else AC_REQUIRES inside PGAC_LLVM_SUPPORT malfunctions
394 AS_IF([test "$with_llvm" = yes], [
405 . "$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 "$enable_debug" != yes; then
444 # When generating bitcode (for inlining) we always want to use -O2
445 # even when --enable-debug is specified. The bitcode is not going to
446 # be used for line-by-line debugging, and JIT inlining doesn't work
447 # without at least -O1 (otherwise clang will emit 'noinline'
448 # attributes everywhere), which is bad for testing. Still allow the
449 # environment to override if done explicitly.
450 if test "$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_UNROLL_LOOPS and CFLAGS_VECTORIZE from the environment, if present
472 if test "$ac_env_CFLAGS_UNROLL_LOOPS_set" = set; then
473 CFLAGS_UNROLL_LOOPS=$ac_env_CFLAGS_UNROLL_LOOPS_value
475 if test "$ac_env_CFLAGS_VECTORIZE_set" = set; then
476 CFLAGS_VECTORIZE=$ac_env_CFLAGS_VECTORIZE_value
479 # Some versions of GCC support some additional useful warning flags.
480 # Check whether they are supported, and add them to CFLAGS if so.
481 # ICC pretends to be GCC but it's lying; it doesn't support these flags,
482 # but has its own. Also check other compiler-specific flags here.
484 if test "$GCC" = yes -a "$ICC" = no; then
485 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith"
486 CXXFLAGS="-Wall -Wpointer-arith"
487 # These work in some but not all gcc versions
489 PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
490 # -Wdeclaration-after-statement isn't applicable for C++. Specific C files
491 # disable it, so AC_SUBST the negative form.
492 PERMIT_DECLARATION_AFTER_STATEMENT=
493 if test x"$save_CFLAGS" != x"$CFLAGS"; then
494 PERMIT_DECLARATION_AFTER_STATEMENT=-Wno-declaration-after-statement
496 AC_SUBST(PERMIT_DECLARATION_AFTER_STATEMENT)
497 # Really don't want VLAs to be used in our dialect of C
498 PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
499 # On macOS, complain about usage of symbols newer than the deployment target
500 PGAC_PROG_CC_CFLAGS_OPT([-Werror=unguarded-availability-new])
501 PGAC_PROG_CXX_CFLAGS_OPT([-Werror=unguarded-availability-new])
502 # -Wvla is not applicable for C++
503 PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
504 PGAC_PROG_CXX_CFLAGS_OPT([-Wendif-labels])
505 PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
506 PGAC_PROG_CXX_CFLAGS_OPT([-Wmissing-format-attribute])
507 PGAC_PROG_CC_CFLAGS_OPT([-Wimplicit-fallthrough=3])
508 PGAC_PROG_CXX_CFLAGS_OPT([-Wimplicit-fallthrough=3])
509 PGAC_PROG_CC_CFLAGS_OPT([-Wcast-function-type])
510 PGAC_PROG_CXX_CFLAGS_OPT([-Wcast-function-type])
511 # This was included in -Wall/-Wformat in older GCC versions
512 PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
513 PGAC_PROG_CXX_CFLAGS_OPT([-Wformat-security])
514 # Disable strict-aliasing rules; needed for gcc 3.3+
515 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
516 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
517 # Disable optimizations that assume no overflow; needed for gcc 4.3+
518 PGAC_PROG_CC_CFLAGS_OPT([-fwrapv])
519 PGAC_PROG_CXX_CFLAGS_OPT([-fwrapv])
520 # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+
521 PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard])
522 PGAC_PROG_CXX_CFLAGS_OPT([-fexcess-precision=standard])
523 # Optimization flags for specific files that benefit from loop unrolling
524 PGAC_PROG_CC_VAR_OPT(CFLAGS_UNROLL_LOOPS, [-funroll-loops])
525 # Optimization flags for specific files that benefit from vectorization
526 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTORIZE, [-ftree-vectorize])
528 # The following tests want to suppress various unhelpful warnings by adding
529 # -Wno-foo switches. But gcc won't complain about unrecognized -Wno-foo
530 # switches, so we have to test for the positive form and if that works,
531 # add the negative form. Note that tests of this form typically need to
532 # be duplicated in the BITCODE_CFLAGS setup stanza below.
534 # Suppress clang's unhelpful unused-command-line-argument warnings.
536 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument])
537 if test -n "$NOT_THE_CFLAGS"; then
538 CFLAGS="$CFLAGS -Wno-unused-command-line-argument"
540 # Remove clang 12+'s compound-token-split-by-macro, as this causes a lot
541 # of warnings when building plperl because of usages in the Perl headers.
543 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wcompound-token-split-by-macro])
544 if test -n "$NOT_THE_CFLAGS"; then
545 CFLAGS="$CFLAGS -Wno-compound-token-split-by-macro"
547 # Similarly disable useless truncation warnings from gcc 8+
549 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation])
550 if test -n "$NOT_THE_CFLAGS"; then
551 CFLAGS="$CFLAGS -Wno-format-truncation"
554 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation])
555 if test -n "$NOT_THE_CFLAGS"; then
556 CFLAGS="$CFLAGS -Wno-stringop-truncation"
558 elif test "$ICC" = yes; then
559 # Intel's compiler has a bug/misoptimization in checking for
560 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
561 PGAC_PROG_CC_CFLAGS_OPT([-mp1])
562 PGAC_PROG_CXX_CFLAGS_OPT([-mp1])
563 # Make sure strict aliasing is off (though this is said to be the default)
564 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
565 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
566 elif test "$PORTNAME" = "aix"; then
567 # AIX's xlc has to have strict aliasing turned off too
568 PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
569 PGAC_PROG_CXX_CFLAGS_OPT([-qnoansialias])
570 PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
571 PGAC_PROG_CXX_CFLAGS_OPT([-qlonglong])
574 AC_SUBST(CFLAGS_UNROLL_LOOPS)
575 AC_SUBST(CFLAGS_VECTORIZE)
577 # Determine flags used to emit bitcode for JIT inlining.
578 # 1. We must duplicate any behaviour-changing compiler flags used above,
579 # to keep compatibility with the compiler used for normal Postgres code.
580 # 2. We don't bother to duplicate extra-warnings switches --- seeing a
581 # warning in the main build is enough.
582 # 3. But we must duplicate -Wno-warning flags, else we'll see those anyway.
583 if test "$with_llvm" = yes ; then
584 CLANGXX="$CLANG -xc++"
586 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing])
587 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing])
588 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv])
589 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv])
590 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard])
591 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard])
594 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wunused-command-line-argument])
595 if test -n "$NOT_THE_CFLAGS"; then
596 BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-unused-command-line-argument"
599 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wcompound-token-split-by-macro])
600 if test -n "$NOT_THE_CFLAGS"; then
601 BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-compound-token-split-by-macro"
604 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wformat-truncation])
605 if test -n "$NOT_THE_CFLAGS"; then
606 BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-format-truncation"
609 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wstringop-truncation])
610 if test -n "$NOT_THE_CFLAGS"; then
611 BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-stringop-truncation"
615 # supply -g if --enable-debug
616 if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then
620 if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then
621 CXXFLAGS="$CXXFLAGS -g"
624 # enable code coverage if --enable-coverage
625 if test "$enable_coverage" = yes; then
626 if test "$GCC" = yes; then
627 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
628 CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
630 AC_MSG_ERROR([--enable-coverage is supported only when using GCC])
634 # enable profiling if --enable-profiling
635 if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then
636 if test "$GCC" = yes; then
637 AC_DEFINE([PROFILE_PID_DIR], 1,
638 [Define to 1 to allow profiling output to be saved separately for each process.])
639 CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS"
640 CXXFLAGS="$CXXFLAGS -pg $PLATFORM_PROFILE_FLAGS"
642 AC_MSG_ERROR([--enable-profiling is supported only when using GCC])
646 # On Solaris, we need this #define to get POSIX-conforming versions
647 # of many interfaces (sigwait, getpwuid_r, ...).
648 if test "$PORTNAME" = "solaris"; then
649 CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
652 # We already have this in Makefile.win32, but configure needs it too
653 if test "$PORTNAME" = "win32"; then
654 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32"
657 # Now that we're done automatically adding stuff to C[XX]FLAGS, put back the
658 # user-specified flags (if any) at the end. This lets users override
659 # the automatic additions.
660 CFLAGS="$CFLAGS $user_CFLAGS"
661 CXXFLAGS="$CXXFLAGS $user_CXXFLAGS"
662 BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS"
663 BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS"
665 AC_SUBST(BITCODE_CFLAGS)
666 AC_SUBST(BITCODE_CXXFLAGS)
668 # The template file must set up CFLAGS_SL; we don't support user override
671 # Check if the compiler still works with the final flag settings
672 # (note, we're not checking that for CXX, which is optional)
673 AC_MSG_CHECKING([whether the C compiler still works])
674 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
675 [AC_MSG_RESULT(yes)],
677 AC_MSG_ERROR([cannot proceed])])
679 # Defend against gcc -ffast-math
680 if test "$GCC" = yes; then
681 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
683 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
686 # Defend against clang being used on x86-32 without SSE2 enabled. As current
687 # versions of clang do not understand -fexcess-precision=standard, the use of
688 # x87 floating point operations leads to problems like isinf possibly returning
689 # false for a value that is infinite when converted from the 80bit register to
690 # the 8byte memory representation.
692 # Only perform the test if the compiler doesn't understand
693 # -fexcess-precision=standard, that way a potentially fixed compiler will work
695 if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then
696 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
697 @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__)
701 [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])])
709 # Set up TAS assembly code if needed; the template file has now had its
710 # chance to request this.
712 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
714 if test "$need_tas" = yes ; then
721 AC_SUBST(DLSUFFIX)dnl
722 AC_DEFINE_UNQUOTED([DLSUFFIX], ["$DLSUFFIX"],
723 [Define to the file name extension of dynamically-loadable modules.])
726 # Set up pkg_config in case we need it below
731 # Automatic dependency tracking
733 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
739 # Enable assert checks
741 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
742 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
743 [Define to 1 to build with assertion checks. (--enable-cassert)])])
747 # Include directories
750 IFS="${IFS}${PATH_SEPARATOR}"
751 # SRCH_INC comes from the template file
752 for dir in $with_includes $SRCH_INC; do
753 if test -d "$dir"; then
754 INCLUDES="$INCLUDES -I$dir"
756 AC_MSG_WARN([*** Include directory $dir does not exist.])
764 # Library directories
767 IFS="${IFS}${PATH_SEPARATOR}"
768 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
769 for dir in $LIBRARY_DIRS $SRCH_LIB; do
770 if test -d "$dir"; then
771 LIBDIRS="$LIBDIRS -L$dir"
773 AC_MSG_WARN([*** Library directory $dir does not exist.])
779 # Enable thread-safe client libraries
781 AC_MSG_CHECKING([allow thread-safe client libraries])
782 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
783 if test "$enable_thread_safety" = yes; then
784 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
785 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
787 AC_MSG_RESULT([$enable_thread_safety])
788 AC_SUBST(enable_thread_safety)
793 AC_MSG_CHECKING([whether to build with ICU support])
794 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
795 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
796 AC_MSG_RESULT([$with_icu])
799 if test "$with_icu" = yes; then
800 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
804 # Optionally build Tcl modules (PL/Tcl)
806 AC_MSG_CHECKING([whether to build with Tcl])
807 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
808 AC_MSG_RESULT([$with_tcl])
811 # We see if the path to the Tcl/Tk configuration scripts is specified.
812 # This will override the use of tclsh to find the paths to search.
814 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
817 # Optionally build Perl modules (PL/Perl)
819 AC_MSG_CHECKING([whether to build Perl modules])
820 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
821 AC_MSG_RESULT([$with_perl])
825 # Optionally build Python modules (PL/Python)
827 AC_MSG_CHECKING([whether to build Python modules])
828 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
829 AC_MSG_RESULT([$with_python])
830 AC_SUBST(with_python)
835 AC_MSG_CHECKING([whether to build with GSSAPI support])
836 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
838 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
839 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
841 AC_MSG_RESULT([$with_gssapi])
842 AC_SUBST(with_gssapi)
849 # Kerberos configuration parameters
851 PGAC_ARG_REQ(with, krb-srvnam,
852 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
854 [with_krb_srvnam="postgres"])
855 AC_SUBST(with_krb_srvnam)
856 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
857 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
863 AC_MSG_CHECKING([whether to build with PAM support])
864 PGAC_ARG_BOOL(with, pam, no,
865 [build with PAM support],
866 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
867 AC_MSG_RESULT([$with_pam])
873 AC_MSG_CHECKING([whether to build with BSD Authentication support])
874 PGAC_ARG_BOOL(with, bsd-auth, no,
875 [build with BSD Authentication support],
876 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
877 AC_MSG_RESULT([$with_bsd_auth])
883 AC_MSG_CHECKING([whether to build with LDAP support])
884 PGAC_ARG_BOOL(with, ldap, no,
885 [build with LDAP support],
886 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
887 AC_MSG_RESULT([$with_ldap])
894 AC_MSG_CHECKING([whether to build with Bonjour support])
895 PGAC_ARG_BOOL(with, bonjour, no,
896 [build with Bonjour support],
897 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
898 AC_MSG_RESULT([$with_bonjour])
904 AC_MSG_CHECKING([whether to build with SELinux support])
905 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
906 AC_SUBST(with_selinux)
907 AC_MSG_RESULT([$with_selinux])
912 AC_MSG_CHECKING([whether to build with systemd support])
913 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
914 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
915 AC_SUBST(with_systemd)
916 AC_MSG_RESULT([$with_systemd])
921 PGAC_ARG_BOOL(with, readline, yes,
922 [do not use GNU Readline nor BSD Libedit for editing])
923 # readline on MinGW has problems with backslashes in psql and other bugs.
924 # This is particularly a problem with non-US code pages.
925 # Therefore disable its use until we understand the cause. 2004-07-20
926 if test "$PORTNAME" = "win32"; then
927 if test "$with_readline" = yes; then
928 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
932 AC_SUBST(with_readline)
938 PGAC_ARG_BOOL(with, libedit-preferred, no,
939 [prefer BSD Libedit over GNU Readline])
945 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
946 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
947 # UUID library. More than one of these might be present on a given platform,
948 # so we make the user say which one she wants.
950 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
951 if test x"$with_uuid" = x"" ; then
954 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
955 if test "$with_ossp_uuid" = yes ; then
959 if test "$with_uuid" != no ; then
960 if test "$with_uuid" = bsd ; then
961 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
962 elif test "$with_uuid" = e2fs ; then
963 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
964 elif test "$with_uuid" = ossp ; then
965 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
967 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
976 AC_MSG_CHECKING([whether to build with XML support])
977 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
978 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
979 AC_MSG_RESULT([$with_libxml])
980 AC_SUBST(with_libxml)
982 if test "$with_libxml" = yes ; then
983 # Check pkg-config, then xml2-config. But for backwards compatibility,
984 # setting XML2_CONFIG overrides pkg-config.
985 AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl
986 have_libxml2_pkg_config=no
987 if test -z "$XML2_CONFIG" -a -n "$PKG_CONFIG"; then
988 PKG_CHECK_MODULES(XML2, [libxml-2.0 >= 2.6.23],
989 [have_libxml2_pkg_config=yes], [# do nothing])
991 if test "$have_libxml2_pkg_config" = no ; then
992 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
993 if test -n "$XML2_CONFIG"; then
994 XML2_CFLAGS=`$XML2_CONFIG --cflags`
995 XML2_LIBS=`$XML2_CONFIG --libs`
998 # Note the user could also set XML2_CFLAGS/XML2_LIBS directly
999 for pgac_option in $XML2_CFLAGS; do
1000 case $pgac_option in
1001 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
1004 for pgac_option in $XML2_LIBS; do
1005 case $pgac_option in
1006 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
1015 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
1016 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
1019 AC_SUBST(with_libxslt)
1024 PGAC_ARG_REQ(with, system-tzdata,
1025 [DIR], [use system time zone data in DIR])
1026 AC_SUBST(with_system_tzdata)
1031 PGAC_ARG_BOOL(with, zlib, yes,
1038 AC_MSG_CHECKING([whether to build with LZ4 support])
1039 PGAC_ARG_BOOL(with, lz4, no, [build with LZ4 support],
1040 [AC_DEFINE([USE_LZ4], 1, [Define to 1 to build with LZ4 support. (--with-lz4)])])
1041 AC_MSG_RESULT([$with_lz4])
1044 if test "$with_lz4" = yes; then
1045 PKG_CHECK_MODULES(LZ4, liblz4)
1046 # We only care about -I, -D, and -L switches;
1047 # note that -llz4 will be added by AC_CHECK_LIB below.
1048 for pgac_option in $LZ4_CFLAGS; do
1049 case $pgac_option in
1050 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
1053 for pgac_option in $LZ4_LIBS; do
1054 case $pgac_option in
1055 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
1063 AC_MSG_CHECKING([whether to build with ZSTD support])
1064 PGAC_ARG_BOOL(with, zstd, no, [build with ZSTD support],
1065 [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with ZSTD support. (--with-zstd)])])
1066 AC_MSG_RESULT([$with_zstd])
1069 if test "$with_zstd" = yes; then
1070 PKG_CHECK_MODULES(ZSTD, libzstd >= 1.4.0)
1071 # We only care about -I, -D, and -L switches;
1072 # note that -lzstd will be added by AC_CHECK_LIB below.
1073 for pgac_option in $ZSTD_CFLAGS; do
1074 case $pgac_option in
1075 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
1078 for pgac_option in $ZSTD_LIBS; do
1079 case $pgac_option in
1080 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
1088 CPPFLAGS="$CPPFLAGS $INCLUDES"
1089 LDFLAGS="$LDFLAGS $LIBDIRS"
1091 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
1092 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
1096 AC_SUBST(with_gnu_ld)
1099 AC_CHECK_TOOL(AR, ar, ar)
1100 if test "$PORTNAME" = "win32"; then
1101 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
1102 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
1103 AC_CHECK_TOOL(WINDRES, windres, windres)
1107 # When Autoconf chooses install-sh as install program it tries to generate
1108 # a relative path to it in each makefile where it substitutes it. This clashes
1109 # with our Makefile.global concept. This workaround helps.
1111 *install-sh*) install_bin='';;
1112 *) install_bin=$INSTALL;;
1114 AC_SUBST(install_bin)
1116 PGAC_PATH_PROGS(TAR, tar)
1119 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
1120 # a relative path to it in each makefile where it substitutes it. This clashes
1121 # with our Makefile.global concept. This workaround helps.
1123 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
1130 if test "$with_perl" = yes; then
1131 if test -z "$PERL"; then
1132 AC_MSG_ERROR([Perl not found])
1134 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
1135 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
1136 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1137 You might have to rebuild your Perl installation. Refer to the
1138 documentation for details. Use --without-perl to disable building
1141 # On most platforms, archlibexp is also where the Perl include files live ...
1142 perl_includespec="-I$perl_archlibexp/CORE"
1143 # ... but on newer macOS versions, we must use -iwithsysroot to look
1145 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then
1146 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1147 perl_includespec="-iwithsysroot $perl_archlibexp/CORE"
1150 AC_SUBST(perl_includespec)dnl
1151 PGAC_CHECK_PERL_EMBED_CCFLAGS
1152 PGAC_CHECK_PERL_EMBED_LDFLAGS
1155 if test "$with_python" = yes; then
1157 PGAC_CHECK_PYTHON_EMBED_SETUP
1160 if test x"$cross_compiling" = x"yes" && test -z "$with_system_tzdata"; then
1161 PGAC_PATH_PROGS(ZIC, zic)
1162 if test -z "$ZIC"; then
1164 When cross-compiling, either use the option --with-system-tzdata to use
1165 existing time-zone data, or set the environment variable ZIC to a zic
1166 program to use during the build.])
1173 # For each platform, we need to know about any special compile and link
1174 # libraries, and whether the normal C function names are thread-safe.
1175 # See the comment at the top of src/port/thread.c for more information.
1176 # WIN32 doesn't need the pthread tests; it always uses threads
1178 # These tests are run before the library-tests, because linking with the
1179 # other libraries can pull in the pthread functions as a side-effect. We
1180 # want to use the -pthread or similar flags directly, and not rely on
1181 # the side-effects of linking with some other library.
1183 dnl note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1184 dnl invocation below is the first one in the script, and autoconf generates
1185 dnl additional code for that, which must not be inside the if-block. AS_IF
1186 dnl knows how to do that.
1187 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1189 AX_PTHREAD # set thread flags
1191 # Some platforms use these, so just define them. They can't hurt if they
1192 # are not supported.
1193 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE"
1195 # Check for *_r functions
1198 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1199 LIBS="$LIBS $PTHREAD_LIBS"
1201 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1202 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1204 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1206 # Do test here with the proper thread flags
1207 PGAC_FUNC_STRERROR_R_INT
1213 # do not use values from template file
1218 AC_SUBST(PTHREAD_CFLAGS)
1219 AC_SUBST(PTHREAD_LIBS)
1225 ## Most libraries are included only if they demonstrably provide a function
1226 ## we need, but libm is an exception: always include it, because there are
1227 ## too many compilers that play cute optimization games that will break
1228 ## probes for standard functions such as pow().
1231 AC_CHECK_LIB(m, main)
1232 AC_SEARCH_LIBS(setproctitle, util)
1233 # gcc/clang's sanitizer helper library provides dlopen but not dlsym, thus
1234 # when enabling asan the dlopen check doesn't notice that -ldl is actually
1235 # required. Just checking for dlsym() ought to suffice.
1236 AC_SEARCH_LIBS(dlsym, dl)
1237 AC_SEARCH_LIBS(socket, [socket ws2_32])
1238 AC_SEARCH_LIBS(shl_load, dld)
1239 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1240 AC_SEARCH_LIBS(shm_open, rt)
1241 AC_SEARCH_LIBS(shm_unlink, rt)
1242 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1244 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1246 AC_SEARCH_LIBS(shmget, cygipc)
1248 AC_SEARCH_LIBS(backtrace_symbols, execinfo)
1250 if test "$enable_thread_safety" = yes; then
1251 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1252 AC_SEARCH_LIBS(pthread_barrier_wait, pthread)
1255 if test "$with_readline" = yes; then
1257 if test x"$pgac_cv_check_readline" = x"no"; then
1258 AC_MSG_ERROR([readline library not found
1259 If you have readline already installed, see config.log for details on the
1260 failure. It is possible the compiler isn't looking in the proper directory.
1261 Use --without-readline to disable readline support.])
1265 if test "$with_zlib" = yes; then
1266 AC_CHECK_LIB(z, inflate, [],
1267 [AC_MSG_ERROR([zlib library not found
1268 If you have zlib already installed, see config.log for details on the
1269 failure. It is possible the compiler isn't looking in the proper directory.
1270 Use --without-zlib to disable zlib support.])])
1273 if test "$enable_spinlocks" = yes; then
1274 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1277 *** Not using spinlocks will cause poor performance.])
1280 if test "$enable_atomics" = yes; then
1281 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1284 *** Not using atomic operations will cause poor performance.])
1287 if test "$with_gssapi" = yes ; then
1288 if test "$PORTNAME" != "win32"; then
1289 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1290 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1292 LIBS="$LIBS -lgssapi32"
1299 # There is currently only one supported SSL/TLS library: OpenSSL.
1301 PGAC_ARG_REQ(with, ssl, [LIB], [use LIB for SSL/TLS support (openssl)])
1302 if test x"$with_ssl" = x"" ; then
1305 PGAC_ARG_BOOL(with, openssl, no, [obsolete spelling of --with-ssl=openssl])
1306 if test "$with_openssl" = yes ; then
1310 if test "$with_ssl" = openssl ; then
1312 # Minimum required OpenSSL version is 1.0.1
1313 AC_DEFINE(OPENSSL_API_COMPAT, [0x10001000L],
1314 [Define to the OpenSSL API version in use. This avoids deprecation warnings from newer OpenSSL versions.])
1315 if test "$PORTNAME" != "win32"; then
1316 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1317 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1319 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1320 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1322 # Function introduced in OpenSSL 1.0.2.
1323 AC_CHECK_FUNCS([X509_get_signature_nid])
1324 # Functions introduced in OpenSSL 1.1.0. We used to check for
1325 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1326 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1327 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1329 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data HMAC_CTX_new HMAC_CTX_free])
1330 # OpenSSL versions before 1.1.0 required setting callback functions, for
1331 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1332 # function was removed.
1333 AC_CHECK_FUNCS([CRYPTO_lock])
1334 AC_DEFINE([USE_OPENSSL], 1, [Define to 1 to build with OpenSSL support. (--with-ssl=openssl)])
1335 elif test "$with_ssl" != no ; then
1336 AC_MSG_ERROR([--with-ssl must specify openssl])
1340 if test "$with_pam" = yes ; then
1341 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1344 if test "$with_libxml" = yes ; then
1345 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1348 if test "$with_libxslt" = yes ; then
1349 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1352 if test "$with_lz4" = yes ; then
1353 AC_CHECK_LIB(lz4, LZ4_compress_default, [], [AC_MSG_ERROR([library 'lz4' is required for LZ4 support])])
1356 if test "$with_zstd" = yes ; then
1357 AC_CHECK_LIB(zstd, ZSTD_compress, [], [AC_MSG_ERROR([library 'zstd' is required for ZSTD support])])
1360 # Note: We can test for libldap_r only after we know PTHREAD_LIBS;
1361 # also, on AIX, we may need to have openssl in LIBS for this step.
1362 if test "$with_ldap" = yes ; then
1364 if test "$PORTNAME" != "win32"; then
1365 AC_CHECK_LIB(ldap, ldap_bind, [],
1366 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1368 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1369 # This test is carried out against libldap.
1370 AC_CHECK_FUNCS([ldap_initialize])
1371 # The separate ldap_r library only exists in OpenLDAP < 2.5, and if we
1372 # have 2.5 or later, we shouldn't even probe for ldap_r (we might find a
1373 # library from a separate OpenLDAP installation). The most reliable
1374 # way to check that is to check for a function introduced in 2.5.
1375 AC_CHECK_FUNC([ldap_verify_credentials],
1376 [thread_safe_libldap=yes],
1377 [thread_safe_libldap=no])
1378 if test "$enable_thread_safety" = yes -a "$thread_safe_libldap" = no; then
1379 # Use ldap_r for FE if available, else assume ldap is thread-safe.
1380 # On some platforms ldap_r fails to link without PTHREAD_LIBS.
1382 AC_CHECK_LIB(ldap_r, ldap_bind,
1383 [LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"],
1384 [LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"],
1385 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1387 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1390 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1391 LDAP_LIBS_FE="-lwldap32"
1392 LDAP_LIBS_BE="-lwldap32"
1396 AC_SUBST(LDAP_LIBS_FE)
1397 AC_SUBST(LDAP_LIBS_BE)
1399 # for contrib/sepgsql
1400 if test "$with_selinux" = yes; then
1401 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1402 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1405 # for contrib/uuid-ossp
1406 if test "$with_uuid" = bsd ; then
1407 # On BSD, the UUID functions are in libc
1408 AC_CHECK_FUNC(uuid_to_string,
1410 [AC_MSG_ERROR([BSD UUID functions are not present])])
1411 elif test "$with_uuid" = e2fs ; then
1412 # On macOS, the UUID functions are in libc
1413 AC_CHECK_FUNC(uuid_generate,
1415 [AC_CHECK_LIB(uuid, uuid_generate,
1416 [UUID_LIBS="-luuid"],
1417 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1418 elif test "$with_uuid" = ossp ; then
1419 AC_CHECK_LIB(ossp-uuid, uuid_export,
1420 [UUID_LIBS="-lossp-uuid"],
1421 [AC_CHECK_LIB(uuid, uuid_export,
1422 [UUID_LIBS="-luuid"],
1423 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1434 AC_CHECK_HEADERS(m4_normalize([
1463 # On BSD, test for net/if.h will fail unless sys/socket.h
1464 # is included first.
1465 AC_CHECK_HEADERS(net/if.h, [], [],
1466 [AC_INCLUDES_DEFAULT
1467 #include <sys/socket.h>
1470 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1471 # is included first.
1472 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1473 [AC_INCLUDES_DEFAULT
1474 #include <sys/param.h>
1477 # At least on IRIX, test for netinet/tcp.h will fail unless
1478 # netinet/in.h is included first.
1479 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1480 [AC_INCLUDES_DEFAULT
1481 #include <netinet/in.h>
1484 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1485 AC_CHECK_HEADERS(readline/readline.h, [],
1486 [AC_CHECK_HEADERS(readline.h, [],
1487 [AC_MSG_ERROR([readline header not found
1488 If you have readline already installed, see config.log for details on the
1489 failure. It is possible the compiler isn't looking in the proper directory.
1490 Use --without-readline to disable readline support.])])])
1491 AC_CHECK_HEADERS(readline/history.h, [],
1492 [AC_CHECK_HEADERS(history.h, [],
1493 [AC_MSG_ERROR([history header not found
1494 If you have readline already installed, see config.log for details on the
1495 failure. It is possible the compiler isn't looking in the proper directory.
1496 Use --without-readline to disable readline support.])])])
1499 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1500 # Some installations of libedit usurp /usr/include/readline/, which seems
1501 # bad practice, since in combined installations readline will have its headers
1502 # there. We might have to resort to AC_EGREP checks to make sure we found
1503 # the proper header...
1504 AC_CHECK_HEADERS(editline/readline.h, [],
1505 [AC_CHECK_HEADERS(readline.h, [],
1506 [AC_CHECK_HEADERS(readline/readline.h, [],
1507 [AC_MSG_ERROR([readline header not found
1508 If you have libedit already installed, see config.log for details on the
1509 failure. It is possible the compiler isn't looking in the proper directory.
1510 Use --without-readline to disable libedit support.])])])])
1511 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1512 # not be there at all. Hence, don't complain if not found. We must check
1513 # though, since in yet other versions it is an independent header.
1514 AC_CHECK_HEADERS(editline/history.h, [],
1515 [AC_CHECK_HEADERS(history.h, [],
1516 [AC_CHECK_HEADERS(readline/history.h)])])
1519 if test "$with_zlib" = yes; then
1520 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1521 If you have zlib already installed, see config.log for details on the
1522 failure. It is possible the compiler isn't looking in the proper directory.
1523 Use --without-zlib to disable zlib support.])])
1526 PGAC_PATH_PROGS(LZ4, lz4)
1527 if test "$with_lz4" = yes; then
1528 AC_CHECK_HEADER(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])
1531 PGAC_PATH_PROGS(ZSTD, zstd)
1532 if test "$with_zstd" = yes; then
1533 AC_CHECK_HEADER(zstd.h, [], [AC_MSG_ERROR([zstd.h header file is required for ZSTD])])
1536 if test "$with_gssapi" = yes ; then
1537 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1538 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1541 if test "$with_ssl" = openssl ; then
1542 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1543 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1546 if test "$with_pam" = yes ; then
1547 AC_CHECK_HEADERS(security/pam_appl.h, [],
1548 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1549 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1552 if test "$with_bsd_auth" = yes ; then
1553 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1556 if test "$with_systemd" = yes ; then
1557 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1560 if test "$with_libxml" = yes ; then
1561 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1564 if test "$with_libxslt" = yes ; then
1565 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1568 if test "$with_ldap" = yes ; then
1569 if test "$PORTNAME" != "win32"; then
1570 AC_CHECK_HEADERS(ldap.h, [],
1571 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1574 AC_CHECK_HEADERS(winldap.h, [],
1575 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1576 [AC_INCLUDES_DEFAULT
1577 #include <windows.h>
1582 if test "$with_bonjour" = yes ; then
1583 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1584 dnl At some point we might add something like
1585 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1586 dnl but right now, what that would mainly accomplish is to encourage
1587 dnl people to try to use the avahi implementation, which does not work.
1588 dnl If you want to use Apple's own Bonjour code on another platform,
1589 dnl just add -ldns_sd to LIBS manually.
1592 # for contrib/uuid-ossp
1593 if test "$with_uuid" = bsd ; then
1594 AC_CHECK_HEADERS(uuid.h,
1595 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1596 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1597 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1598 elif test "$with_uuid" = e2fs ; then
1599 AC_CHECK_HEADERS(uuid/uuid.h,
1600 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1601 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1602 [AC_CHECK_HEADERS(uuid.h,
1603 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1604 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1605 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1606 elif test "$with_uuid" = ossp ; then
1607 AC_CHECK_HEADERS(ossp/uuid.h,
1608 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1609 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1610 [AC_CHECK_HEADERS(uuid.h,
1611 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1612 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1613 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1616 if test "$PORTNAME" = "win32" ; then
1617 AC_CHECK_HEADERS(crtdefs.h)
1621 ## Types, structures, compiler characteristics
1624 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1627 PGAC_PRINTF_ARCHETYPE
1628 PGAC_C_FUNCNAME_SUPPORT
1629 PGAC_C_STATIC_ASSERT
1631 PGAC_C_TYPES_COMPATIBLE
1632 PGAC_C_BUILTIN_CONSTANT_P
1633 PGAC_C_BUILTIN_UNREACHABLE
1634 PGAC_C_COMPUTED_GOTO
1635 PGAC_STRUCT_TIMEZONE
1637 AC_CHECK_TYPES(socklen_t, [], [], [#include <sys/socket.h>])
1638 PGAC_STRUCT_SOCKADDR_UN
1639 PGAC_STRUCT_SOCKADDR_STORAGE
1640 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1641 PGAC_STRUCT_ADDRINFO
1645 # MSVC doesn't cope well with defining restrict to __restrict, the
1646 # spelling it understands, because it conflicts with
1647 # __declspec(restrict). Therefore we define pg_restrict to the
1648 # appropriate definition, which presumably won't conflict.
1650 # Allow platforms with buggy compilers to force restrict to not be
1651 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1654 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1657 pg_restrict="$ac_cv_c_restrict"
1659 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1660 [Define to keyword to use for C99 restrict support, or to nothing if not
1663 AC_CHECK_TYPES([struct cmsgcred], [], [],
1664 [#include <sys/socket.h>
1665 #include <sys/param.h>
1666 #ifdef HAVE_SYS_UCRED_H
1667 #include <sys/ucred.h>
1670 AC_CHECK_TYPES([struct option], [], [],
1671 [#ifdef HAVE_GETOPT_H
1675 if test "$with_zlib" = yes; then
1676 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1677 # did not). While we could work around the lack of z_streamp, it
1678 # seems unwise to encourage people to use such old zlib versions...
1679 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1680 Use --without-zlib to disable zlib support.])],
1681 [#include <zlib.h>])
1686 # On x86_64, check if we can compile a popcntq instruction
1687 AC_CACHE_CHECK([whether assembler supports x86_64 popcntq],
1688 [pgac_cv_have_x86_64_popcntq],
1689 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1690 [long long x = 1; long long r;
1691 __asm__ __volatile__ (" popcntq %1,%0\n" : "=q"(r) : "rm"(x));])],
1692 [pgac_cv_have_x86_64_popcntq=yes],
1693 [pgac_cv_have_x86_64_popcntq=no])])
1694 if test x"$pgac_cv_have_x86_64_popcntq" = xyes ; then
1695 AC_DEFINE(HAVE_X86_64_POPCNTQ, 1, [Define to 1 if the assembler supports X86_64's POPCNTQ instruction.])
1699 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1700 AC_CACHE_CHECK([whether assembler supports lwarx hint bit],
1701 [pgac_cv_have_ppc_mutex_hint],
1702 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1703 [int a = 0; int *p = &a; int r;
1704 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1705 [pgac_cv_have_ppc_mutex_hint=yes],
1706 [pgac_cv_have_ppc_mutex_hint=no])])
1707 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1708 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1710 # Check if compiler accepts "i"(x) when __builtin_constant_p(x).
1711 AC_CACHE_CHECK([whether __builtin_constant_p(x) implies "i"(x) acceptance],
1712 [pgac_cv_have_i_constraint__builtin_constant_p],
1713 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1715 addi(int ra, int si)
1718 if (__builtin_constant_p(si))
1719 __asm__ __volatile__(
1720 " addi %0,%1,%2\n" : "=r"(res) : "b"(ra), "i"(si));
1723 int test_adds(int x) { return addi(3, x) + addi(x, 5); }], [])],
1724 [pgac_cv_have_i_constraint__builtin_constant_p=yes],
1725 [pgac_cv_have_i_constraint__builtin_constant_p=no])])
1726 if test x"$pgac_cv_have_i_constraint__builtin_constant_p" = xyes ; then
1727 AC_DEFINE(HAVE_I_CONSTRAINT__BUILTIN_CONSTANT_P, 1,
1728 [Define to 1 if __builtin_constant_p(x) implies "i"(x) acceptance.])
1733 # Check largefile support. You might think this is a system service not a
1734 # compiler characteristic, but you'd be wrong. We must check this before
1735 # probing existence of related functions such as fseeko, since the largefile
1736 # defines can affect what is generated for that.
1737 if test "$PORTNAME" != "win32"; then
1739 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1740 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1741 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1742 dnl versions where the feature actually works, it's on by default anyway.
1743 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1746 dnl Check for largefile support (must be after AC_SYS_LARGEFILE)
1747 AC_CHECK_SIZEOF([off_t])
1749 # If we don't have largefile support, can't handle segsize >= 2GB.
1750 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1751 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1754 AC_CHECK_SIZEOF([bool], [],
1755 [#ifdef HAVE_STDBOOL_H
1756 #include <stdbool.h>
1759 dnl We use <stdbool.h> if we have it and it declares type bool as having
1760 dnl size 1. Otherwise, c.h will fall back to declaring bool as unsigned char.
1761 if test "$ac_cv_header_stdbool_h" = yes -a "$ac_cv_sizeof_bool" = 1; then
1762 AC_DEFINE([PG_USE_STDBOOL], 1,
1763 [Define to 1 to use <stdbool.h> to define type bool.])
1768 ## Functions, global variables
1771 PGAC_VAR_INT_TIMEZONE
1772 PGAC_FUNC_GETTIMEOFDAY_1ARG
1773 PGAC_FUNC_WCSTOMBS_L
1775 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1776 # symbols that that library has no business exposing to the world. Pending
1777 # acquisition of a clue by those developers, ignore libedit (including its
1778 # possible alias of libreadline) while checking for everything else.
1779 LIBS_including_readline="$LIBS"
1780 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1782 AC_CHECK_FUNCS(m4_normalize([
1797 pthread_is_threaded_np
1814 # These typically are compiler builtins, for which AC_CHECK_FUNCS fails.
1815 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap16], [int x])
1816 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap32], [int x])
1817 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap64], [long int x])
1818 # We assume that we needn't test all widths of these explicitly:
1819 PGAC_CHECK_BUILTIN_FUNC([__builtin_clz], [unsigned int x])
1820 PGAC_CHECK_BUILTIN_FUNC([__builtin_ctz], [unsigned int x])
1821 PGAC_CHECK_BUILTIN_FUNC([__builtin_popcount], [unsigned int x])
1822 # __builtin_frame_address may draw a diagnostic for non-constant argument,
1823 # so it needs a different test function.
1824 PGAC_CHECK_BUILTIN_FUNC_PTR([__builtin_frame_address], [0])
1826 # We require 64-bit fseeko() to be available, but run this check anyway
1827 # in case it finds that _LARGEFILE_SOURCE has to be #define'd for that.
1830 # Make sure there's a declaration for sigwait(), then make sure
1831 # that it conforms to the POSIX standard (there seem to still be
1832 # some platforms out there with pre-POSIX sigwait()). On Solaris,
1833 # _POSIX_PTHREAD_SEMANTICS affects the result, but we already
1834 # added that to CPPFLAGS.
1835 AC_CHECK_DECLS(sigwait, [], [], [#include <signal.h>])
1836 if test "x$ac_cv_have_decl_sigwait" = xyes; then
1837 AC_CACHE_CHECK([for POSIX-conforming sigwait declaration],
1838 [pgac_cv_have_posix_decl_sigwait],
1839 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
1841 int sigwait(const sigset_t *set, int *sig);
1844 [pgac_cv_have_posix_decl_sigwait=yes],
1845 [pgac_cv_have_posix_decl_sigwait=no])])
1847 if test "x$pgac_cv_have_posix_decl_sigwait" = xyes; then
1848 AC_DEFINE(HAVE_POSIX_DECL_SIGWAIT, 1,
1849 [Define to 1 if you have a POSIX-conforming sigwait declaration.])
1851 # On non-Windows, libpq requires POSIX sigwait() for thread safety.
1852 if test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"; then
1853 AC_MSG_ERROR([POSIX-conforming sigwait is required to enable thread safety.])
1857 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1858 # by calling it, 2009-04-02
1859 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1860 dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions
1861 AS_IF([test "$PORTNAME" != "solaris"], [
1862 AC_CHECK_FUNCS(posix_fadvise)
1863 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1866 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1867 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1869 # We can't use AC_REPLACE_FUNCS to replace these functions, because it
1870 # won't handle deployment target restrictions on macOS
1871 AC_CHECK_DECLS([preadv], [], [AC_LIBOBJ(preadv)], [#include <sys/uio.h>])
1872 AC_CHECK_DECLS([pwritev], [], [AC_LIBOBJ(pwritev)], [#include <sys/uio.h>])
1874 # This is probably only present on macOS, but may as well check always
1875 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1877 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1879 AC_CHECK_TYPE([struct sockaddr_in6],
1880 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])],
1882 [$ac_includes_default
1883 #include <netinet/in.h>])
1885 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1886 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1887 [#include <machine/vmparam.h>
1888 #include <sys/exec.h>
1890 [PS_STRINGS->ps_nargvstr = 1;
1891 PS_STRINGS->ps_argvstr = "foo";])],
1892 [pgac_cv_var_PS_STRINGS=yes],
1893 [pgac_cv_var_PS_STRINGS=no])])
1894 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1895 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1898 AC_REPLACE_FUNCS(m4_normalize([
1916 if test "$enable_thread_safety" = yes; then
1917 AC_REPLACE_FUNCS(pthread_barrier_wait)
1920 if test "$PORTNAME" = "win32" -o "$PORTNAME" = "cygwin"; then
1921 # Cygwin and (apparently, based on test results) Mingw both
1922 # have a broken strtof(), so substitute its implementation.
1923 # That's not a perfect fix, since it doesn't avoid double-rounding,
1924 # but we have no better options. To get that, though, we have to
1925 # force the file to be compiled despite HAVE_STRTOF.
1927 AC_MSG_NOTICE([On $host_os we will use our strtof wrapper.])
1931 # Windows uses a specialised env handler
1933 AC_DEFINE(HAVE_SETENV, 1, [Define to 1 because replacement version used.])
1934 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1935 ac_cv_func_setenv=yes
1936 ac_cv_func_unsetenv=yes
1939 AC_REPLACE_FUNCS([setenv unsetenv])
1943 # System's version of getaddrinfo(), if any, may be used only if we found
1944 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1945 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1946 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1947 test "$PORTNAME" != "win32"; then
1948 AC_REPLACE_FUNCS([getaddrinfo])
1950 AC_LIBOBJ(getaddrinfo)
1953 # Similarly, use system's getopt_long() only if system provides struct option.
1954 if test x"$ac_cv_type_struct_option" = xyes ; then
1955 AC_REPLACE_FUNCS([getopt_long])
1957 AC_LIBOBJ(getopt_long)
1960 # On OpenBSD and Solaris, getopt() doesn't do what we want for long options
1961 # (i.e., allow '-' as a flag character), so use our version on those platforms.
1962 if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then
1966 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1967 # so always use our version on Windows.
1968 if test "$PORTNAME" = "win32"; then
1970 AC_LIBOBJ(getopt_long)
1973 # Win32 (really MinGW) support
1974 if test "$PORTNAME" = "win32"; then
1975 AC_CHECK_FUNCS(_configthreadlocale)
1976 AC_REPLACE_FUNCS(gettimeofday)
1982 AC_LIBOBJ(win32error)
1983 AC_LIBOBJ(win32ntdll)
1984 AC_LIBOBJ(win32security)
1985 AC_LIBOBJ(win32setlocale)
1986 AC_LIBOBJ(win32stat)
1987 AC_DEFINE([HAVE_SYMLINK], 1,
1988 [Define to 1 if you have the `symlink' function.])
1989 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1990 #define WIN32_LEAN_AND_MEAN
1991 #include <windows.h>
1993 #include <dbghelp.h>])
1995 if test x"$pgac_minidump_type" = x"yes" ; then
1996 AC_SUBST(have_win32_dbghelp,yes)
1998 AC_SUBST(have_win32_dbghelp,no)
2001 # Cygwin needs only a bit of that
2002 if test "$PORTNAME" = "cygwin"; then
2006 AC_CHECK_FUNC(syslog,
2007 [AC_CHECK_HEADER(syslog.h,
2008 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
2010 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
2011 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
2012 [extern int opterr; opterr = 1;])],
2013 [pgac_cv_var_int_opterr=yes],
2014 [pgac_cv_var_int_opterr=no])])
2015 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
2016 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
2019 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
2020 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
2021 [extern int optreset; optreset = 1;])],
2022 [pgac_cv_var_int_optreset=yes],
2023 [pgac_cv_var_int_optreset=no])])
2024 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
2025 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
2028 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
2029 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
2030 # strto[u]ll may exist but not be declared
2031 AC_CHECK_DECLS([strtoll, strtoull])
2033 if test "$with_icu" = yes; then
2034 ac_save_CPPFLAGS=$CPPFLAGS
2035 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
2037 # Verify we have ICU's header files
2038 AC_CHECK_HEADER(unicode/ucol.h, [],
2039 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
2041 CPPFLAGS=$ac_save_CPPFLAGS
2044 if test "$with_llvm" = yes; then
2045 PGAC_CHECK_LLVM_FUNCTIONS()
2048 # Lastly, restore full LIBS list and check for readline/libedit symbols
2049 LIBS="$LIBS_including_readline"
2051 if test "$with_readline" = yes; then
2052 PGAC_READLINE_VARIABLES
2053 AC_CHECK_FUNCS(m4_normalize([
2055 history_truncate_file
2056 rl_completion_matches
2057 rl_filename_completion_function
2058 rl_reset_screen_size
2064 # This test makes sure that run tests work at all. Sometimes a shared
2065 # library is found by the linker, but the runtime linker can't find it.
2066 # This check should come after all modifications of compiler or linker
2067 # variables, and before any other run tests.
2068 AC_MSG_CHECKING([test program])
2069 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
2070 [AC_MSG_RESULT(ok)],
2071 [AC_MSG_RESULT(failed)
2073 Could not execute a simple test program. This may be a problem
2074 related to locating shared libraries. Check the file 'config.log'
2075 for the exact reason.]])],
2076 [AC_MSG_RESULT([cross-compiling])])
2078 # --------------------
2079 # Run tests below here
2080 # --------------------
2082 dnl Check to see if we have a working 64-bit integer type.
2083 dnl Since Postgres 8.4, we no longer support compilers without a working
2084 dnl 64-bit type; but we have to determine whether that type is called
2085 dnl "long int" or "long long int".
2087 PGAC_TYPE_64BIT_INT([long int])
2089 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
2090 pg_int64_type="long int"
2092 PGAC_TYPE_64BIT_INT([long long int])
2093 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
2094 pg_int64_type="long long int"
2096 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
2100 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
2101 [Define to the name of a signed 64-bit integer type.])
2103 # Select the printf length modifier that goes with that, too.
2104 if test x"$pg_int64_type" = x"long long int" ; then
2105 INT64_MODIFIER='"ll"'
2107 INT64_MODIFIER='"l"'
2110 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
2111 [Define to the appropriate printf length modifier for 64-bit ints.])
2113 # has to be down here, rather than with the other builtins, because
2114 # the test uses PG_INT64_TYPE.
2115 PGAC_C_BUILTIN_OP_OVERFLOW
2117 # Check size of void *, size_t (enables tweaks for > 32bit address space)
2118 AC_CHECK_SIZEOF([void *])
2119 AC_CHECK_SIZEOF([size_t])
2120 AC_CHECK_SIZEOF([long])
2122 # Determine memory alignment requirements for the basic C data types.
2124 AC_CHECK_ALIGNOF(short)
2125 AC_CHECK_ALIGNOF(int)
2126 AC_CHECK_ALIGNOF(long)
2127 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
2128 AC_CHECK_ALIGNOF(long long int)
2130 AC_CHECK_ALIGNOF(double)
2132 # Compute maximum alignment of any basic type.
2133 # We assume long's alignment is at least as strong as char, short, or int;
2134 # but we must check long long (if it is being used for int64) and double.
2135 # Note that we intentionally do not consider any types wider than 64 bits,
2136 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
2137 # for disk and memory space.
2139 MAX_ALIGNOF=$ac_cv_alignof_long
2140 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
2141 MAX_ALIGNOF=$ac_cv_alignof_double
2143 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
2144 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
2146 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
2149 # Some platforms predefine the types int8, int16, etc. Only check
2150 # a (hopefully) representative subset.
2151 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
2152 [#include <stdio.h>])
2154 # Some compilers offer a 128-bit integer scalar type.
2155 PGAC_TYPE_128BIT_INT
2157 # Check for various atomic operations now that we have checked how to declare
2159 PGAC_HAVE_GCC__SYNC_CHAR_TAS
2160 PGAC_HAVE_GCC__SYNC_INT32_TAS
2161 PGAC_HAVE_GCC__SYNC_INT32_CAS
2162 PGAC_HAVE_GCC__SYNC_INT64_CAS
2163 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
2164 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
2167 # Check for x86 cpuid instruction
2168 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
2169 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
2170 [[unsigned int exx[4] = {0, 0, 0, 0};
2171 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
2173 [pgac_cv__get_cpuid="yes"],
2174 [pgac_cv__get_cpuid="no"])])
2175 if test x"$pgac_cv__get_cpuid" = x"yes"; then
2176 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
2179 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
2180 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
2181 [[unsigned int exx[4] = {0, 0, 0, 0};
2182 __get_cpuid(exx[0], 1);
2184 [pgac_cv__cpuid="yes"],
2185 [pgac_cv__cpuid="no"])])
2186 if test x"$pgac_cv__cpuid" = x"yes"; then
2187 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2190 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2192 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2193 # with the default compiler flags. If not, check if adding the -msse4.2
2194 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2195 PGAC_SSE42_CRC32_INTRINSICS([])
2196 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2197 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2199 AC_SUBST(CFLAGS_SSE42)
2201 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2202 # define __SSE4_2__ in that case.
2203 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2205 #error __SSE4_2__ not defined
2207 ])], [SSE4_2_TARGETED=1])
2209 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2211 # First check if __crc32c* intrinsics can be used with the default compiler
2212 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2213 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2214 PGAC_ARMV8_CRC32C_INTRINSICS([])
2215 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2216 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2218 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2220 # Select CRC-32C implementation.
2222 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2223 # use the special CRC instructions for calculating CRC-32C. If we're not
2224 # targeting such a processor, but we can nevertheless produce code that uses
2225 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2226 # implementations and select which one to use at runtime, depending on whether
2227 # SSE 4.2 is supported by the processor we're running on.
2229 # Similarly, if we are targeting an ARM processor that has the CRC
2230 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2231 # we're not targeting such a processor, but can nevertheless produce code that
2232 # uses the CRC instructions, compile both, and select at runtime.
2234 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2235 # in the template or configure command line.
2236 if test x"$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
2237 # Use Intel SSE 4.2 if available.
2238 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2241 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2242 # the runtime check.
2243 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2244 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2246 # Use ARM CRC Extension if available.
2247 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2250 # ARM CRC Extension, with runtime check?
2251 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2252 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2254 # fall back to slicing-by-8 algorithm, which doesn't require any
2255 # special CPU support.
2256 USE_SLICING_BY_8_CRC32C=1
2263 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2264 AC_MSG_CHECKING([which CRC-32C implementation to use])
2265 if test x"$USE_SSE42_CRC32C" = x"1"; then
2266 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2267 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2268 AC_MSG_RESULT(SSE 4.2)
2270 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2271 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2272 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2273 AC_MSG_RESULT(SSE 4.2 with runtime check)
2275 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2276 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2277 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2278 AC_MSG_RESULT(ARMv8 CRC instructions)
2280 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2281 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2282 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2283 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2285 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2286 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2287 AC_MSG_RESULT(slicing-by-8)
2292 AC_SUBST(PG_CRC32C_OBJS)
2295 # Select semaphore implementation type.
2296 if test "$PORTNAME" != "win32"; then
2297 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2298 # Need sem_open for this
2299 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2301 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2302 # Need sem_init for this
2303 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2305 AC_MSG_CHECKING([which semaphore API to use])
2306 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2307 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2308 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2309 sematype="named POSIX"
2311 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2312 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2313 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2314 sematype="unnamed POSIX"
2316 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2317 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2321 AC_MSG_RESULT([$sematype])
2323 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2324 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2328 # Select shared-memory implementation type.
2329 if test "$PORTNAME" != "win32"; then
2330 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2331 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2333 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2334 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2337 # Select random number source. If a TLS library is used then it will be the
2338 # first choice, else the native platform sources (Windows API or /dev/urandom)
2340 AC_MSG_CHECKING([which random number source to use])
2341 if test x"$with_ssl" = x"openssl" ; then
2342 AC_MSG_RESULT([OpenSSL])
2343 elif test x"$PORTNAME" = x"win32" ; then
2344 AC_MSG_RESULT([Windows native])
2345 elif test x"$cross_compiling" = x"yes"; then
2346 AC_MSG_RESULT([assuming /dev/urandom])
2348 AC_MSG_RESULT([/dev/urandom])
2349 AC_CHECK_FILE([/dev/urandom], [], [])
2351 if test x"$ac_cv_file__dev_urandom" = x"no" ; then
2353 no source of strong random numbers was found
2354 PostgreSQL can use OpenSSL, native Windows API or /dev/urandom as a source of random numbers.])
2358 # If not set in template file, set bytes to use libc memset()
2359 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2360 MEMSET_LOOP_LIMIT=1024
2362 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2365 if test "$enable_nls" = yes ; then
2369 # Check for Tcl configuration script tclConfig.sh
2370 if test "$with_tcl" = yes; then
2371 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2372 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2373 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2374 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2375 if test "$TCL_SHARED_BUILD" != 1; then
2376 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2377 Use --without-tcl to disable building PL/Tcl.])
2379 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2380 ac_save_CPPFLAGS=$CPPFLAGS
2381 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2382 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2383 CPPFLAGS=$ac_save_CPPFLAGS
2386 # check for <perl.h>
2387 if test "$with_perl" = yes; then
2388 ac_save_CPPFLAGS=$CPPFLAGS
2389 CPPFLAGS="$CPPFLAGS $perl_includespec"
2390 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2391 [#include <EXTERN.h>])
2392 # While we're at it, check that we can link to libperl.
2393 # On most platforms, if perl.h is there then libperl.so will be too, but at
2394 # this writing Debian packages them separately. There is no known reason to
2395 # waste cycles on separate probes for the Tcl or Python libraries, though.
2396 # On some Red Hat platforms, the link attempt can fail if we don't use
2397 # CFLAGS_SL while building the test program.
2398 ac_save_CFLAGS=$CFLAGS
2399 CFLAGS="$CFLAGS $CFLAGS_SL"
2400 pgac_save_LIBS=$LIBS
2401 LIBS="$perl_embed_ldflags"
2402 AC_MSG_CHECKING([for libperl])
2403 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2406 ], [perl_alloc();])],
2407 [AC_MSG_RESULT(yes)],
2409 AC_MSG_ERROR([libperl library is required for Perl])])
2410 LIBS=$pgac_save_LIBS
2411 CFLAGS=$ac_save_CFLAGS
2412 CPPFLAGS=$ac_save_CPPFLAGS
2415 # check for <Python.h>
2416 if test "$with_python" = yes; then
2417 ac_save_CPPFLAGS=$CPPFLAGS
2418 CPPFLAGS="$python_includespec $CPPFLAGS"
2419 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2420 CPPFLAGS=$ac_save_CPPFLAGS
2424 # Check for documentation-building tools
2426 PGAC_PATH_PROGS(XMLLINT, xmllint)
2427 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2428 PGAC_PATH_PROGS(FOP, fop)
2429 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2432 # Check for test tools
2434 if test "$enable_tap_tests" = yes; then
2435 # Make sure we know where prove is.
2436 PGAC_PATH_PROGS(PROVE, prove)
2437 if test -z "$PROVE"; then
2438 AC_MSG_ERROR([prove not found])
2440 # Check for necessary Perl modules. You might think we should use
2441 # AX_PROG_PERL_MODULES here, but prove might be part of a different Perl
2442 # installation than perl, eg on MSys, so we have to check using prove.
2443 AC_MSG_CHECKING(for Perl modules required for TAP tests)
2444 __CONFIG_HOST_OS__=$host_os; export __CONFIG_HOST_OS__
2445 [modulestderr=`"$PROVE" "$srcdir/config/check_modules.pl" 2>&1 >/dev/null`]
2446 if test $? -eq 0; then
2447 # log the module version details, but don't show them interactively
2448 echo "$modulestderr" >&AS_MESSAGE_LOG_FD
2451 # on failure, though, show the results to the user
2452 AC_MSG_RESULT([$modulestderr])
2453 AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])
2457 # If compiler will take -Wl,--as-needed (or various platform-specific
2458 # spellings thereof) then add that to LDFLAGS. This is much easier than
2459 # trying to filter LIBS to the minimum for each executable.
2460 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2461 # libreadline; therefore we postpone testing it until we know what library
2462 # dependencies readline has. The test code will try to link with $LIBS.
2463 if test "$with_readline" = yes; then
2464 link_test_func=readline
2469 if test "$PORTNAME" = "darwin"; then
2470 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2471 elif test "$PORTNAME" = "openbsd"; then
2472 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2474 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2477 # Create compiler version string
2478 if test x"$GCC" = x"yes" ; then
2479 cc_string=`${CC} --version | sed q`
2480 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2481 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2482 cc_string=`${CC} -V 2>&1 | sed q`
2487 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2488 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2489 [A string containing the version number, platform, and C compiler])
2491 # Supply a numeric version string for use by 3rd party add-ons
2492 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2493 [PG_VERSION_NUM="`echo $PG_MAJORVERSION $PG_MINORVERSION |
2494 $AWK '{printf "%d%04d", $1, $2}'`"]
2495 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2496 AC_SUBST(PG_VERSION_NUM)
2498 # If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not
2499 # literally, so that it's possible to override it at build time using
2500 # a command like "make ... PG_SYSROOT=path". This has to be done after
2501 # we've finished all configure checks that depend on CPPFLAGS.
2502 # The same for LDFLAGS, too.
2503 if test x"$PG_SYSROOT" != x; then
2504 CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"`
2505 LDFLAGS=`echo "$LDFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"`
2507 AC_SUBST(PG_SYSROOT)
2510 # Begin output steps
2512 AC_MSG_NOTICE([using compiler=$cc_string])
2513 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2514 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2515 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2516 # Currently only used when LLVM is used
2517 if test "$with_llvm" = yes ; then
2518 AC_MSG_NOTICE([using CXX=$CXX])
2519 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2520 AC_MSG_NOTICE([using CLANG=$CLANG])
2521 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2522 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2525 # prepare build tree if outside source tree
2526 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2527 # Note 2: /bin/pwd might be better than shell's built-in at getting
2528 # a symlink-free name.
2529 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2533 if test "$no_create" != yes; then
2534 _AS_ECHO_N([preparing build tree... ])
2535 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2536 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2537 || AC_MSG_ERROR(failed)
2541 AC_SUBST(vpath_build)
2544 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2547 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2548 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2549 src/include/pg_config_os.h:src/include/port/${template}.h
2550 src/Makefile.port:src/makefiles/Makefile.${template}
2553 if test "$PORTNAME" = "win32"; then
2554 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2555 # Links sometimes fail undetected on Mingw -
2556 # so here we detect it and warn the user
2557 for FILE in $CONFIG_LINKS
2559 # test -e works for symlinks in the MinGW console
2560 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2565 AC_CONFIG_HEADERS([src/include/pg_config.h],
2567 # Update timestamp for pg_config.h (see Makefile.global)
2568 echo >src/include/stamp-h
2571 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2573 # Update timestamp for pg_config_ext.h (see Makefile.global)
2574 echo >src/include/stamp-ext-h
2577 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2578 [echo >src/interfaces/ecpg/include/stamp-h])