1 dnl Process this file with autoconf to produce a configure script.
4 dnl Developers, please strive to achieve this order:
6 dnl 0. Initialization and options processing
12 dnl 6. Compiler characteristics
13 dnl 7. Functions, global variables
14 dnl 8. System services
16 dnl Read the Autoconf manual for details.
18 m4_pattern_forbid(^PGAC_)dnl to catch undefined macros
20 AC_INIT([PostgreSQL], [12devel], [pgsql-bugs@lists.postgresql.org])
22 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required.
23 Untested combinations of 'autoconf' and PostgreSQL versions are not
24 recommended. You can remove the check from 'configure.in' but it is then
25 your responsibility whether the result works or not.])])
26 AC_COPYRIGHT([Copyright (c) 1996-2019, PostgreSQL Global Development Group])
27 AC_CONFIG_SRCDIR([src/backend/access/common/heaptuple.c])
28 AC_CONFIG_AUX_DIR(config)
29 AC_PREFIX_DEFAULT(/usr/local/pgsql)
30 AC_SUBST(configure_args, [$ac_configure_args])
32 [PG_MAJORVERSION=`expr "$PACKAGE_VERSION" : '\([0-9][0-9]*\)'`]
33 AC_SUBST(PG_MAJORVERSION)
34 AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major version as a string])
36 PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version],
37 [PG_VERSION="$PACKAGE_VERSION$withval"],
38 [PG_VERSION="$PACKAGE_VERSION"])
39 AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string])
44 AC_MSG_CHECKING([which template to use])
46 PGAC_ARG_REQ(with, template, [NAME], [override operating system template],
49 list) echo; ls "$srcdir/src/template"; exit;;
50 *) if test -f "$srcdir/src/template/$with_template" ; then
53 AC_MSG_ERROR(['$withval' is not a valid template name. Use 'list' for a list.])
58 # --with-template not given
62 cygwin*) template=cygwin ;;
63 darwin*) template=darwin ;;
64 dragonfly*) template=netbsd ;;
65 freebsd*) template=freebsd ;;
66 hpux*) template=hpux ;;
67 linux*|gnu*|k*bsd*-gnu)
69 mingw*) template=win32 ;;
70 netbsd*) template=netbsd ;;
71 openbsd*) template=openbsd ;;
72 solaris*) template=solaris ;;
75 if test x"$template" = x"" ; then
77 *******************************************************************
78 PostgreSQL has apparently not been ported to your platform yet.
79 To try a manual configuration, look into the src/template directory
80 for a similar platform and use the '--with-template=' option.
82 Please also contact <pgsql-bugs@lists.postgresql.org> to see about
83 rectifying this. Include the above 'checking host system type...'
85 *******************************************************************
91 AC_MSG_RESULT([$template])
96 # Initialize default assumption that we do not need separate assembly code
97 # for TAS (test-and-set). This can be overridden by the template file
105 ## Command line options
109 # Add non-standard directories to the include path
111 PGAC_ARG_REQ(with, includes, [DIRS], [look for additional header files in DIRS])
115 # Add non-standard directories to the library search path
117 PGAC_ARG_REQ(with, libraries, [DIRS], [look for additional libraries in DIRS],
118 [LIBRARY_DIRS=$withval])
120 PGAC_ARG_REQ(with, libs, [DIRS], [alternative spelling of --with-libraries],
121 [LIBRARY_DIRS=$withval])
125 # 64-bit integer date/time storage is now the only option, but to avoid
126 # unnecessary breakage of build scripts, continue to accept an explicit
127 # "--enable-integer-datetimes" switch.
129 PGAC_ARG_BOOL(enable, integer-datetimes, yes, [obsolete option, no longer supported],
131 [AC_MSG_ERROR([--disable-integer-datetimes is no longer supported])])
137 AC_MSG_CHECKING([whether NLS is wanted])
138 PGAC_ARG_OPTARG(enable, nls,
139 [LANGUAGES], [enable Native Language Support],
141 [WANTED_LANGUAGES=$enableval],
142 [AC_DEFINE(ENABLE_NLS, 1,
143 [Define to 1 if you want National Language Support. (--enable-nls)])])
144 AC_MSG_RESULT([$enable_nls])
146 AC_SUBST(WANTED_LANGUAGES)
149 # Default port number (--with-pgport), default 5432
151 AC_MSG_CHECKING([for default port number])
152 PGAC_ARG_REQ(with, pgport, [PORTNUM], [set default port number [5432]],
153 [default_port=$withval],
155 AC_MSG_RESULT([$default_port])
156 # Need both of these because some places want an integer and some a string
157 AC_DEFINE_UNQUOTED(DEF_PGPORT, ${default_port},
158 [Define to the default TCP port number on which the server listens and
159 to which clients will try to connect. This can be overridden at run-time,
160 but it's convenient if your clients have the right default compiled in.
161 (--with-pgport=PORTNUM)])
162 AC_DEFINE_UNQUOTED(DEF_PGPORT_STR, "${default_port}",
163 [Define to the default TCP port number as a string constant.])
164 AC_SUBST(default_port)
166 # It's worth validating port; you can get very confusing errors otherwise
167 if test x"$default_port" = x""; then
168 AC_MSG_ERROR([invalid --with-pgport specification: empty string])
169 elif test ! x`echo "$default_port" | sed -e 's/[[0-9]]*//'` = x""; then
170 AC_MSG_ERROR([invalid --with-pgport specification: must be a number])
171 elif test ! x`echo "$default_port" | sed -e 's/^0.//'` = x"$default_port"; then
172 AC_MSG_ERROR([invalid --with-pgport specification: must not have leading 0])
173 elif test "$default_port" -lt "1" -o "$default_port" -gt "65535"; then
174 AC_MSG_ERROR([invalid --with-pgport specification: must be between 1 and 65535])
178 # '-rpath'-like feature can be disabled
180 PGAC_ARG_BOOL(enable, rpath, yes,
181 [do not embed shared library search path in executables])
182 AC_SUBST(enable_rpath)
187 PGAC_ARG_BOOL(enable, spinlocks, yes,
188 [do not use spinlocks])
193 PGAC_ARG_BOOL(enable, atomics, yes,
194 [do not use atomic operations])
197 # --enable-debug adds -g to compiler flags
199 PGAC_ARG_BOOL(enable, debug, no,
200 [build with debugging symbols (-g)])
201 AC_SUBST(enable_debug)
204 # --enable-profiling enables gcc profiling
206 PGAC_ARG_BOOL(enable, profiling, no,
207 [build with profiling enabled ])
210 # --enable-coverage enables generation of code coverage metrics with gcov
212 PGAC_ARG_BOOL(enable, coverage, no,
213 [build with coverage testing instrumentation],
214 [PGAC_PATH_PROGS(GCOV, gcov)
215 if test -z "$GCOV"; then
216 AC_MSG_ERROR([gcov not found])
218 PGAC_PATH_PROGS(LCOV, lcov)
219 if test -z "$LCOV"; then
220 AC_MSG_ERROR([lcov not found])
222 PGAC_PATH_PROGS(GENHTML, genhtml)
223 if test -z "$GENHTML"; then
224 AC_MSG_ERROR([genhtml not found])
226 AC_SUBST(enable_coverage)
231 PGAC_ARG_BOOL(enable, dtrace, no,
232 [build with DTrace support],
233 [PGAC_PATH_PROGS(DTRACE, dtrace)
234 if test -z "$DTRACE"; then
235 AC_MSG_ERROR([dtrace not found])
237 AC_SUBST(DTRACEFLAGS)])
238 AC_SUBST(enable_dtrace)
243 PGAC_ARG_BOOL(enable, tap-tests, no,
244 [enable TAP tests (requires Perl and IPC::Run)])
245 AC_SUBST(enable_tap_tests)
250 AC_MSG_CHECKING([for block size])
251 PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]],
252 [blocksize=$withval],
261 *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.])
263 AC_MSG_RESULT([${blocksize}kB])
265 AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [
266 Size of a disk block --- this also limits the size of a tuple. You
267 can set it bigger if you need bigger tuples (although TOAST should
268 reduce the need to have large tuples, since fields can be spread
269 across multiple tuples).
271 BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ
272 is currently 2^15 (32768). This is determined by the 15-bit widths
273 of the lp_off and lp_len fields in ItemIdData (see
274 include/storage/itemid.h).
276 Changing BLCKSZ requires an initdb.
280 # Relation segment size
282 AC_MSG_CHECKING([for segment size])
283 PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]],
286 # this expression is set up to avoid unnecessary integer overflow
287 # blocksize is already guaranteed to be a factor of 1024
288 RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024`
289 test $? -eq 0 || exit 1
290 AC_MSG_RESULT([${segsize}GB])
292 AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [
293 RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
294 Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
295 relations bigger than that are divided into multiple files.
297 RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size.
298 This is often 2 GB or 4GB in a 32-bit operating system, unless you
299 have large file support enabled. By default, we make the limit 1 GB
300 to avoid any possible integer-overflow problems within the OS.
301 A limit smaller than necessary only means we divide a large
302 relation into more chunks than necessary, so it seems best to err
303 in the direction of a small limit.
305 A power-of-2 value is recommended to save a few cycles in md.c,
306 but is not absolutely required.
308 Changing RELSEG_SIZE requires an initdb.
314 AC_MSG_CHECKING([for WAL block size])
315 PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]],
316 [wal_blocksize=$withval],
318 case ${wal_blocksize} in
319 1) XLOG_BLCKSZ=1024;;
320 2) XLOG_BLCKSZ=2048;;
321 4) XLOG_BLCKSZ=4096;;
322 8) XLOG_BLCKSZ=8192;;
323 16) XLOG_BLCKSZ=16384;;
324 32) XLOG_BLCKSZ=32768;;
325 64) XLOG_BLCKSZ=65536;;
326 *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.])
328 AC_MSG_RESULT([${wal_blocksize}kB])
330 AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [
331 Size of a WAL file block. This need have no particular relation to BLCKSZ.
332 XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O,
333 XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O
334 buffers, else direct I/O may fail.
336 Changing XLOG_BLCKSZ requires an initdb.
343 # For historical reasons you can also use --with-CC to specify the C compiler
344 # to use, although the standard way to do this is to set the CC environment
346 PGAC_ARG_REQ(with, CC, [CMD], [set compiler (deprecated)], [CC=$with_CC])
349 aix) pgac_cc_list="gcc xlc"; pgac_cxx_list="g++ xlC";;
350 *) pgac_cc_list="gcc cc"; pgac_cxx_list="g++ c++";;
353 AC_PROG_CC([$pgac_cc_list])
356 # Error out if the compiler does not support C99, as the codebase
358 if test "$ac_cv_prog_cc_c99" = no; then
359 AC_MSG_ERROR([C compiler "$CC" does not support C99])
362 AC_PROG_CXX([$pgac_cxx_list])
364 # Check if it's Intel's compiler, which (usually) pretends to be gcc,
365 # but has idiosyncrasies of its own. We assume icc will define
366 # __INTEL_COMPILER regardless of CFLAGS.
367 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER
369 @%:@endif])], [ICC=yes], [ICC=no])
371 # Check if it's Sun Studio compiler. We assume that
372 # __SUNPRO_C will be defined for Sun Studio compilers
373 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C
375 @%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no])
377 AC_SUBST(SUN_STUDIO_CC)
383 # Checked early because subsequent tests depend on it.
384 PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support],
385 [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])])
387 dnl must use AS_IF here, else AC_REQUIRES inside PGAC_LLVM_SUPPORT malfunctions
388 AS_IF([test "$with_llvm" = yes], [
399 . "$srcdir/src/template/$template" || exit
401 # C[XX]FLAGS are selected so:
402 # If the user specifies something in the environment, that is used.
403 # else: If the template file set something, that is used.
404 # else: If coverage was enabled, don't set anything.
405 # else: If the compiler is GCC, then we use -O2.
406 # else: If the compiler is something else, then we use -O, unless debugging.
408 if test "$ac_env_CFLAGS_set" = set; then
409 CFLAGS=$ac_env_CFLAGS_value
410 elif test "${CFLAGS+set}" = set; then
411 : # (keep what template set)
412 elif test "$enable_coverage" = yes; then
413 : # no optimization by default
414 elif test "$GCC" = yes; then
417 # if the user selected debug mode, don't use -O
418 if test "$enable_debug" != yes; then
423 if test "$ac_env_CXXFLAGS_set" = set; then
424 CXXFLAGS=$ac_env_CXXFLAGS_value
425 elif test "${CXXFLAGS+set}" = set; then
426 : # (keep what template set)
427 elif test "$enable_coverage" = yes; then
428 : # no optimization by default
429 elif test "$GCC" = yes; then
432 # if the user selected debug mode, don't use -O
433 if test "$enable_debug" != yes; then
438 # When generating bitcode (for inlining) we always want to use -O2
439 # even when --enable-debug is specified. The bitcode it's not going to
440 # be used for line-by-line debugging, and JIT inlining doesn't work
441 # without at least -O1 (otherwise clang will emit 'noinline'
442 # attributes everywhere), which is bad for testing. Still allow the
443 # environment to override if done explicitly.
444 if test "$ac_env_BITCODE_CFLAGS_set" = set; then
445 BITCODE_CFLAGS=$ac_env_BITCODE_CFLAGS_value
447 BITCODE_CFLAGS="-O2 $BITCODE_CFLAGS"
449 if test "$ac_env_BITCODE_CXXFLAGS_set" = set; then
450 BITCODE_CXXFLAGS=$ac_env_BITCODE_CXXFLAGS_value
452 BITCODE_CXXFLAGS="-O2 $BITCODE_CXXFLAGS"
455 # C[XX]FLAGS we determined above will be added back at the end
458 user_CXXFLAGS=$CXXFLAGS
460 user_BITCODE_CFLAGS=$BITCODE_CFLAGS
462 user_BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS
465 # set CFLAGS_VECTOR from the environment, if available
466 if test "$ac_env_CFLAGS_VECTOR_set" = set; then
467 CFLAGS_VECTOR=$ac_env_CFLAGS_VECTOR_value
470 # Some versions of GCC support some additional useful warning flags.
471 # Check whether they are supported, and add them to CFLAGS if so.
472 # ICC pretends to be GCC but it's lying; it doesn't support these flags,
473 # but has its own. Also check other compiler-specific flags here.
475 if test "$GCC" = yes -a "$ICC" = no; then
476 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith"
477 CXXFLAGS="-Wall -Wpointer-arith"
478 # These work in some but not all gcc versions
480 PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
481 # -Wdeclaration-after-statement isn't applicable for C++. Specific C files
482 # disable it, so AC_SUBST the negative form.
483 PERMIT_DECLARATION_AFTER_STATEMENT=
484 if test x"save_$CFLAGS" != x"$CFLAGS"; then
485 PERMIT_DECLARATION_AFTER_STATEMENT=-Wno-declaration-after-statement
487 AC_SUBST(PERMIT_DECLARATION_AFTER_STATEMENT)
488 # Really don't want VLAs to be used in our dialect of C
489 PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
490 # -Wvla is not applicable for C++
491 PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
492 PGAC_PROG_CXX_CFLAGS_OPT([-Wendif-labels])
493 PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute])
494 PGAC_PROG_CXX_CFLAGS_OPT([-Wmissing-format-attribute])
495 # This was included in -Wall/-Wformat in older GCC versions
496 PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
497 PGAC_PROG_CXX_CFLAGS_OPT([-Wformat-security])
498 # Disable strict-aliasing rules; needed for gcc 3.3+
499 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
500 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
501 # Disable optimizations that assume no overflow; needed for gcc 4.3+
502 PGAC_PROG_CC_CFLAGS_OPT([-fwrapv])
503 PGAC_PROG_CXX_CFLAGS_OPT([-fwrapv])
504 # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+
505 PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard])
506 PGAC_PROG_CXX_CFLAGS_OPT([-fexcess-precision=standard])
507 # Optimization flags for specific files that benefit from vectorization
508 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-funroll-loops])
509 PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTOR, [-ftree-vectorize])
510 # We want to suppress clang's unhelpful unused-command-line-argument warnings
511 # but gcc won't complain about unrecognized -Wno-foo switches, so we have to
512 # test for the positive form and if that works, add the negative form
514 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument])
515 if test -n "$NOT_THE_CFLAGS"; then
516 CFLAGS="$CFLAGS -Wno-unused-command-line-argument"
518 # Similarly disable useless truncation warnings from gcc 8+
520 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation])
521 if test -n "$NOT_THE_CFLAGS"; then
522 CFLAGS="$CFLAGS -Wno-format-truncation"
525 PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation])
526 if test -n "$NOT_THE_CFLAGS"; then
527 CFLAGS="$CFLAGS -Wno-stringop-truncation"
529 elif test "$ICC" = yes; then
530 # Intel's compiler has a bug/misoptimization in checking for
531 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
532 PGAC_PROG_CC_CFLAGS_OPT([-mp1])
533 PGAC_PROG_CXX_CFLAGS_OPT([-mp1])
534 # Make sure strict aliasing is off (though this is said to be the default)
535 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
536 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing])
537 elif test "$PORTNAME" = "aix"; then
538 # AIX's xlc has to have strict aliasing turned off too
539 PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
540 PGAC_PROG_CXX_CFLAGS_OPT([-qnoansialias])
541 PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
542 PGAC_PROG_CXX_CFLAGS_OPT([-qlonglong])
543 elif test "$PORTNAME" = "hpux"; then
544 # On some versions of HP-UX, libm functions do not set errno by default.
545 # Fix that by using +Olibmerrno if the compiler recognizes it.
546 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno])
547 PGAC_PROG_CXX_CFLAGS_OPT([+Olibmerrno])
550 AC_SUBST(CFLAGS_VECTOR, $CFLAGS_VECTOR)
552 # Determine flags used to emit bitcode for JIT inlining. Need to test
553 # for behaviour changing compiler flags, to keep compatibility with
554 # compiler used for normal postgres code.
555 if test "$with_llvm" = yes ; then
556 CLANGXX="$CLANG -xc++"
558 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing])
559 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing])
560 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv])
561 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv])
562 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard])
563 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard])
566 # supply -g if --enable-debug
567 if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then
571 if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then
572 CXXFLAGS="$CXXFLAGS -g"
575 # enable code coverage if --enable-coverage
576 if test "$enable_coverage" = yes; then
577 if test "$GCC" = yes; then
578 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
579 CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
581 AC_MSG_ERROR([--enable-coverage is supported only when using GCC])
585 # enable profiling if --enable-profiling
586 if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then
587 if test "$GCC" = yes; then
588 AC_DEFINE([PROFILE_PID_DIR], 1,
589 [Define to 1 to allow profiling output to be saved separately for each process.])
590 CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS"
591 CXXFLAGS="$CXXFLAGS -pg $PLATFORM_PROFILE_FLAGS"
593 AC_MSG_ERROR([--enable-profiling is supported only when using GCC])
597 # We already have this in Makefile.win32, but configure needs it too
598 if test "$PORTNAME" = "win32"; then
599 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND"
602 # Now that we're done automatically adding stuff to C[XX]FLAGS, put back the
603 # user-specified flags (if any) at the end. This lets users override
604 # the automatic additions.
605 CFLAGS="$CFLAGS $user_CFLAGS"
606 CXXFLAGS="$CXXFLAGS $user_CXXFLAGS"
607 BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS"
608 BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS"
610 AC_SUBST(BITCODE_CFLAGS, $BITCODE_CFLAGS)
611 AC_SUBST(BITCODE_CXXFLAGS, $BITCODE_CXXFLAGS)
613 # Check if the compiler still works with the final flag settings
614 # (note, we're not checking that for CXX, which is optional)
615 AC_MSG_CHECKING([whether the C compiler still works])
616 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
617 [AC_MSG_RESULT(yes)],
619 AC_MSG_ERROR([cannot proceed])])
621 # Defend against gcc -ffast-math
622 if test "$GCC" = yes; then
623 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
625 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
628 # Defend against clang being used on x86-32 without SSE2 enabled. As current
629 # versions of clang do not understand -fexcess-precision=standard, the use of
630 # x87 floating point operations leads to problems like isinf possibly returning
631 # false for a value that is infinite when converted from the 80bit register to
632 # the 8byte memory representation.
634 # Only perform the test if the compiler doesn't understand
635 # -fexcess-precision=standard, that way a potentially fixed compiler will work
637 if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then
638 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
639 @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__)
643 [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])])
651 # Set up TAS assembly code if needed; the template file has now had its
652 # chance to request this.
654 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
656 if test "$need_tas" = yes ; then
665 # Automatic dependency tracking
667 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
673 # Enable assert checks
675 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
676 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
677 [Define to 1 to build with assertion checks. (--enable-cassert)])])
681 # Include directories
684 IFS="${IFS}${PATH_SEPARATOR}"
685 # SRCH_INC comes from the template file
686 for dir in $with_includes $SRCH_INC; do
687 if test -d "$dir"; then
688 INCLUDES="$INCLUDES -I$dir"
690 AC_MSG_WARN([*** Include directory $dir does not exist.])
698 # Library directories
701 IFS="${IFS}${PATH_SEPARATOR}"
702 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
703 for dir in $LIBRARY_DIRS $SRCH_LIB; do
704 if test -d "$dir"; then
705 LIBDIRS="$LIBDIRS -L$dir"
707 AC_MSG_WARN([*** Library directory $dir does not exist.])
713 # Enable thread-safe client libraries
715 AC_MSG_CHECKING([allow thread-safe client libraries])
716 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
717 if test "$enable_thread_safety" = yes; then
718 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
719 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
721 AC_MSG_RESULT([$enable_thread_safety])
722 AC_SUBST(enable_thread_safety)
727 AC_MSG_CHECKING([whether to build with ICU support])
728 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
729 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
730 AC_MSG_RESULT([$with_icu])
733 if test "$with_icu" = yes; then
734 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
738 # Optionally build Tcl modules (PL/Tcl)
740 AC_MSG_CHECKING([whether to build with Tcl])
741 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
742 AC_MSG_RESULT([$with_tcl])
745 # We see if the path to the Tcl/Tk configuration scripts is specified.
746 # This will override the use of tclsh to find the paths to search.
748 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
751 # Optionally build Perl modules (PL/Perl)
753 AC_MSG_CHECKING([whether to build Perl modules])
754 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
755 AC_MSG_RESULT([$with_perl])
759 # Optionally build Python modules (PL/Python)
761 AC_MSG_CHECKING([whether to build Python modules])
762 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
763 AC_MSG_RESULT([$with_python])
764 AC_SUBST(with_python)
769 AC_MSG_CHECKING([whether to build with GSSAPI support])
770 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
772 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
773 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
775 AC_MSG_RESULT([$with_gssapi])
776 AC_SUBST(with_gssapi)
783 # Kerberos configuration parameters
785 PGAC_ARG_REQ(with, krb-srvnam,
786 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
788 [with_krb_srvnam="postgres"])
789 AC_SUBST(with_krb_srvnam)
790 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
791 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
797 AC_MSG_CHECKING([whether to build with PAM support])
798 PGAC_ARG_BOOL(with, pam, no,
799 [build with PAM support],
800 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
801 AC_MSG_RESULT([$with_pam])
807 AC_MSG_CHECKING([whether to build with BSD Authentication support])
808 PGAC_ARG_BOOL(with, bsd-auth, no,
809 [build with BSD Authentication support],
810 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
811 AC_MSG_RESULT([$with_bsd_auth])
817 AC_MSG_CHECKING([whether to build with LDAP support])
818 PGAC_ARG_BOOL(with, ldap, no,
819 [build with LDAP support],
820 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
821 AC_MSG_RESULT([$with_ldap])
828 AC_MSG_CHECKING([whether to build with Bonjour support])
829 PGAC_ARG_BOOL(with, bonjour, no,
830 [build with Bonjour support],
831 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
832 AC_MSG_RESULT([$with_bonjour])
838 AC_MSG_CHECKING([whether to build with OpenSSL support])
839 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
840 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
841 AC_MSG_RESULT([$with_openssl])
842 AC_SUBST(with_openssl)
847 AC_MSG_CHECKING([whether to build with SELinux support])
848 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
849 AC_SUBST(with_selinux)
850 AC_MSG_RESULT([$with_selinux])
855 AC_MSG_CHECKING([whether to build with systemd support])
856 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
857 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
858 AC_SUBST(with_systemd)
859 AC_MSG_RESULT([$with_systemd])
864 PGAC_ARG_BOOL(with, readline, yes,
865 [do not use GNU Readline nor BSD Libedit for editing])
866 # readline on MinGW has problems with backslashes in psql and other bugs.
867 # This is particularly a problem with non-US code pages.
868 # Therefore disable its use until we understand the cause. 2004-07-20
869 if test "$PORTNAME" = "win32"; then
870 if test "$with_readline" = yes; then
871 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
880 PGAC_ARG_BOOL(with, libedit-preferred, no,
881 [prefer BSD Libedit over GNU Readline])
887 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
888 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
889 # UUID library. More than one of these might be present on a given platform,
890 # so we make the user say which one she wants.
892 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
893 if test x"$with_uuid" = x"" ; then
896 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
897 if test "$with_ossp_uuid" = yes ; then
901 if test "$with_uuid" = bsd ; then
902 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
903 UUID_EXTRA_OBJS="md5.o sha1.o"
904 elif test "$with_uuid" = e2fs ; then
905 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
906 UUID_EXTRA_OBJS="md5.o sha1.o"
907 elif test "$with_uuid" = ossp ; then
908 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
910 elif test "$with_uuid" = no ; then
913 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
916 AC_SUBST(UUID_EXTRA_OBJS)
922 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
923 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
925 if test "$with_libxml" = yes ; then
926 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
927 AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl
928 if test -n "$XML2_CONFIG"; then
929 for pgac_option in `$XML2_CONFIG --cflags`; do
931 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
934 for pgac_option in `$XML2_CONFIG --libs`; do
936 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
942 AC_SUBST(with_libxml)
947 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
948 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
951 AC_SUBST(with_libxslt)
956 PGAC_ARG_REQ(with, system-tzdata,
957 [DIR], [use system time zone data in DIR])
958 AC_SUBST(with_system_tzdata)
963 PGAC_ARG_BOOL(with, zlib, yes,
971 # Assume system is ELF if it predefines __ELF__ as 1,
972 # otherwise believe host_os based default.
974 freebsd1*|freebsd2*) elf=no;;
975 freebsd3*|freebsd4*) elf=yes;;
984 [if test "X$elf" = "Xyes" ; then
995 CPPFLAGS="$CPPFLAGS $INCLUDES"
996 LDFLAGS="$LDFLAGS $LIBDIRS"
998 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
999 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
1003 AC_SUBST(with_gnu_ld)
1006 AC_CHECK_TOOL(AR, ar, ar)
1007 if test "$PORTNAME" = "win32"; then
1008 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
1009 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
1010 AC_CHECK_TOOL(WINDRES, windres, windres)
1014 # When Autoconf chooses install-sh as install program it tries to generate
1015 # a relative path to it in each makefile where it substitutes it. This clashes
1016 # with our Makefile.global concept. This workaround helps.
1018 *install-sh*) install_bin='';;
1019 *) install_bin=$INSTALL;;
1021 AC_SUBST(install_bin)
1023 PGAC_PATH_PROGS(TAR, tar)
1026 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
1027 # a relative path to it in each makefile where it substitutes it. This clashes
1028 # with our Makefile.global concept. This workaround helps.
1030 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
1037 if test "$with_perl" = yes; then
1038 if test -z "$PERL"; then
1039 AC_MSG_ERROR([Perl not found])
1041 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
1042 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
1043 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1044 You might have to rebuild your Perl installation. Refer to the
1045 documentation for details. Use --without-perl to disable building
1048 # On most platforms, archlibexp is also where the Perl include files live ...
1049 perl_includespec="-I$perl_archlibexp/CORE"
1050 # ... but on newer macOS versions, we must use -iwithsysroot to look
1052 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then
1053 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1054 perl_includespec="-iwithsysroot $perl_archlibexp/CORE"
1057 AC_SUBST(perl_includespec)dnl
1058 PGAC_CHECK_PERL_EMBED_CCFLAGS
1059 PGAC_CHECK_PERL_EMBED_LDFLAGS
1062 if test "$with_python" = yes; then
1064 PGAC_CHECK_PYTHON_EMBED_SETUP
1067 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1068 PGAC_PATH_PROGS(ZIC, zic)
1069 if test -z "$ZIC"; then
1071 When cross-compiling, either use the option --with-system-tzdata to use
1072 existing time-zone data, or set the environment variable ZIC to a zic
1073 program to use during the build.])
1080 # For each platform, we need to know about any special compile and link
1081 # libraries, and whether the normal C function names are thread-safe.
1082 # See the comment at the top of src/port/thread.c for more information.
1083 # WIN32 doesn't need the pthread tests; it always uses threads
1085 # These tests are run before the library-tests, because linking with the
1086 # other libraries can pull in the pthread functions as a side-effect. We
1087 # want to use the -pthread or similar flags directly, and not rely on
1088 # the side-effects of linking with some other library.
1090 dnl note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1091 dnl invocation below is the first one in the script, and autoconf generates
1092 dnl additional code for that, which must not be inside the if-block. AS_IF
1093 dnl knows how to do that.
1094 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1096 AX_PTHREAD # set thread flags
1098 # Some platforms use these, so just define them. They can't hurt if they
1099 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1100 # enables 5-arg getpwuid_r, among other things.
1101 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1103 # Check for *_r functions
1106 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1107 LIBS="$LIBS $PTHREAD_LIBS"
1109 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1110 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1112 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1114 # Do test here with the proper thread flags
1115 PGAC_FUNC_STRERROR_R_INT
1121 # do not use values from template file
1126 AC_SUBST(PTHREAD_CFLAGS)
1127 AC_SUBST(PTHREAD_LIBS)
1133 ## Most libraries are included only if they demonstrably provide a function
1134 ## we need, but libm is an exception: always include it, because there are
1135 ## too many compilers that play cute optimization games that will break
1136 ## probes for standard functions such as pow().
1139 AC_CHECK_LIB(m, main)
1140 AC_SEARCH_LIBS(setproctitle, util)
1141 AC_SEARCH_LIBS(dlopen, dl)
1142 AC_SEARCH_LIBS(socket, [socket ws2_32])
1143 AC_SEARCH_LIBS(shl_load, dld)
1144 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1145 AC_SEARCH_LIBS(crypt, crypt)
1146 AC_SEARCH_LIBS(shm_open, rt)
1147 AC_SEARCH_LIBS(shm_unlink, rt)
1148 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1150 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1151 # Required for thread_test.c on Solaris
1152 AC_SEARCH_LIBS(sched_yield, rt)
1153 # Required for thread_test.c on Solaris 2.5:
1154 # Other ports use it too (HP-UX) so test unconditionally
1155 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1157 AC_SEARCH_LIBS(shmget, cygipc)
1159 if test "$with_readline" = yes; then
1161 if test x"$pgac_cv_check_readline" = x"no"; then
1162 AC_MSG_ERROR([readline library not found
1163 If you have readline already installed, see config.log for details on the
1164 failure. It is possible the compiler isn't looking in the proper directory.
1165 Use --without-readline to disable readline support.])
1169 if test "$with_zlib" = yes; then
1170 AC_CHECK_LIB(z, inflate, [],
1171 [AC_MSG_ERROR([zlib library not found
1172 If you have zlib already installed, see config.log for details on the
1173 failure. It is possible the compiler isn't looking in the proper directory.
1174 Use --without-zlib to disable zlib support.])])
1177 if test "$enable_spinlocks" = yes; then
1178 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1181 *** Not using spinlocks will cause poor performance.])
1184 if test "$enable_atomics" = yes; then
1185 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1188 *** Not using atomic operations will cause poor performance.])
1191 if test "$with_gssapi" = yes ; then
1192 if test "$PORTNAME" != "win32"; then
1193 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1194 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1196 LIBS="$LIBS -lgssapi32"
1200 if test "$with_openssl" = yes ; then
1202 if test "$PORTNAME" != "win32"; then
1203 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1204 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1206 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1207 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1209 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1210 # Functions introduced in OpenSSL 1.1.0. We used to check for
1211 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1212 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1213 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1215 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data RAND_OpenSSL])
1216 # OpenSSL versions before 1.1.0 required setting callback functions, for
1217 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1218 # function was removed.
1219 AC_CHECK_FUNCS([CRYPTO_lock])
1222 if test "$with_pam" = yes ; then
1223 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1226 if test "$with_libxml" = yes ; then
1227 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1230 if test "$with_libxslt" = yes ; then
1231 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1234 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1235 if test "$with_ldap" = yes ; then
1237 if test "$PORTNAME" != "win32"; then
1238 AC_CHECK_LIB(ldap, ldap_bind, [],
1239 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1241 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1242 if test "$enable_thread_safety" = yes; then
1243 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1244 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1245 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1246 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1247 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1249 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1251 AC_CHECK_FUNCS([ldap_initialize])
1253 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1254 LDAP_LIBS_FE="-lwldap32"
1255 LDAP_LIBS_BE="-lwldap32"
1259 AC_SUBST(LDAP_LIBS_FE)
1260 AC_SUBST(LDAP_LIBS_BE)
1262 # for contrib/sepgsql
1263 if test "$with_selinux" = yes; then
1264 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1265 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1268 # for contrib/uuid-ossp
1269 if test "$with_uuid" = bsd ; then
1270 # On BSD, the UUID functions are in libc
1271 AC_CHECK_FUNC(uuid_to_string,
1273 [AC_MSG_ERROR([BSD UUID functions are not present])])
1274 elif test "$with_uuid" = e2fs ; then
1275 # On macOS, the UUID functions are in libc
1276 AC_CHECK_FUNC(uuid_generate,
1278 [AC_CHECK_LIB(uuid, uuid_generate,
1279 [UUID_LIBS="-luuid"],
1280 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1281 elif test "$with_uuid" = ossp ; then
1282 AC_CHECK_LIB(ossp-uuid, uuid_export,
1283 [UUID_LIBS="-lossp-uuid"],
1284 [AC_CHECK_LIB(uuid, uuid_export,
1285 [UUID_LIBS="-luuid"],
1286 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1297 AC_CHECK_HEADERS(m4_normalize([
1327 # On BSD, test for net/if.h will fail unless sys/socket.h
1328 # is included first.
1329 AC_CHECK_HEADERS(net/if.h, [], [],
1330 [AC_INCLUDES_DEFAULT
1331 #include <sys/socket.h>
1334 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1335 # is included first.
1336 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1337 [AC_INCLUDES_DEFAULT
1338 #include <sys/param.h>
1341 # At least on IRIX, test for netinet/tcp.h will fail unless
1342 # netinet/in.h is included first.
1343 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1344 [AC_INCLUDES_DEFAULT
1345 #include <netinet/in.h>
1348 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1349 AC_CHECK_HEADERS(readline/readline.h, [],
1350 [AC_CHECK_HEADERS(readline.h, [],
1351 [AC_MSG_ERROR([readline header not found
1352 If you have readline already installed, see config.log for details on the
1353 failure. It is possible the compiler isn't looking in the proper directory.
1354 Use --without-readline to disable readline support.])])])
1355 AC_CHECK_HEADERS(readline/history.h, [],
1356 [AC_CHECK_HEADERS(history.h, [],
1357 [AC_MSG_ERROR([history header not found
1358 If you have readline already installed, see config.log for details on the
1359 failure. It is possible the compiler isn't looking in the proper directory.
1360 Use --without-readline to disable readline support.])])])
1363 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1364 # Some installations of libedit usurp /usr/include/readline/, which seems
1365 # bad practice, since in combined installations readline will have its headers
1366 # there. We might have to resort to AC_EGREP checks to make sure we found
1367 # the proper header...
1368 AC_CHECK_HEADERS(editline/readline.h, [],
1369 [AC_CHECK_HEADERS(readline.h, [],
1370 [AC_CHECK_HEADERS(readline/readline.h, [],
1371 [AC_MSG_ERROR([readline header not found
1372 If you have libedit already installed, see config.log for details on the
1373 failure. It is possible the compiler isn't looking in the proper directory.
1374 Use --without-readline to disable libedit support.])])])])
1375 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1376 # not be there at all. Hence, don't complain if not found. We must check
1377 # though, since in yet other versions it is an independent header.
1378 AC_CHECK_HEADERS(editline/history.h, [],
1379 [AC_CHECK_HEADERS(history.h, [],
1380 [AC_CHECK_HEADERS(readline/history.h)])])
1383 if test "$with_zlib" = yes; then
1384 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1385 If you have zlib already installed, see config.log for details on the
1386 failure. It is possible the compiler isn't looking in the proper directory.
1387 Use --without-zlib to disable zlib support.])])
1390 if test "$with_gssapi" = yes ; then
1391 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1392 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1395 if test "$with_openssl" = yes ; then
1396 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1397 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1400 if test "$with_pam" = yes ; then
1401 AC_CHECK_HEADERS(security/pam_appl.h, [],
1402 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1403 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1406 if test "$with_bsd_auth" = yes ; then
1407 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1410 if test "$with_systemd" = yes ; then
1411 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1414 if test "$with_libxml" = yes ; then
1415 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1418 if test "$with_libxslt" = yes ; then
1419 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1422 if test "$with_ldap" = yes ; then
1423 if test "$PORTNAME" != "win32"; then
1424 AC_CHECK_HEADERS(ldap.h, [],
1425 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1428 AC_CHECK_HEADERS(winldap.h, [],
1429 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1430 [AC_INCLUDES_DEFAULT
1431 #include <windows.h>
1436 if test "$with_bonjour" = yes ; then
1437 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1438 dnl At some point we might add something like
1439 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1440 dnl but right now, what that would mainly accomplish is to encourage
1441 dnl people to try to use the avahi implementation, which does not work.
1442 dnl If you want to use Apple's own Bonjour code on another platform,
1443 dnl just add -ldns_sd to LIBS manually.
1446 # for contrib/uuid-ossp
1447 if test "$with_uuid" = bsd ; then
1448 AC_CHECK_HEADERS(uuid.h,
1449 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1450 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1451 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1452 elif test "$with_uuid" = e2fs ; then
1453 AC_CHECK_HEADERS(uuid/uuid.h,
1454 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1455 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1456 [AC_CHECK_HEADERS(uuid.h,
1457 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1458 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1459 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1460 elif test "$with_uuid" = ossp ; then
1461 AC_CHECK_HEADERS(ossp/uuid.h,
1462 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1463 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1464 [AC_CHECK_HEADERS(uuid.h,
1465 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1466 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1467 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1470 if test "$PORTNAME" = "win32" ; then
1471 AC_CHECK_HEADERS(crtdefs.h)
1475 ## Types, structures, compiler characteristics
1478 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1481 PGAC_PRINTF_ARCHETYPE
1482 AC_C_FLEXIBLE_ARRAY_MEMBER
1484 PGAC_C_FUNCNAME_SUPPORT
1485 PGAC_C_STATIC_ASSERT
1487 PGAC_C_TYPES_COMPATIBLE
1488 PGAC_C_BUILTIN_BSWAP16
1489 PGAC_C_BUILTIN_BSWAP32
1490 PGAC_C_BUILTIN_BSWAP64
1491 PGAC_C_BUILTIN_CONSTANT_P
1492 PGAC_C_BUILTIN_UNREACHABLE
1493 PGAC_C_COMPUTED_GOTO
1494 PGAC_STRUCT_TIMEZONE
1496 PGAC_STRUCT_SOCKADDR_UN
1497 PGAC_STRUCT_SOCKADDR_STORAGE
1498 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1499 PGAC_STRUCT_ADDRINFO
1502 AC_TYPE_LONG_LONG_INT
1506 # MSVC doesn't cope well with defining restrict to __restrict, the
1507 # spelling it understands, because it conflicts with
1508 # __declspec(restrict). Therefore we define pg_restrict to the
1509 # appropriate definition, which presumably won't conflict.
1511 # Allow platforms with buggy compilers to force restrict to not be
1512 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1515 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1518 pg_restrict="$ac_cv_c_restrict"
1520 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1521 [Define to keyword to use for C99 restrict support, or to nothing if not
1524 AC_CHECK_TYPES([struct cmsgcred], [], [],
1525 [#include <sys/socket.h>
1526 #include <sys/param.h>
1527 #ifdef HAVE_SYS_UCRED_H
1528 #include <sys/ucred.h>
1531 AC_CHECK_TYPES([struct option], [], [],
1532 [#ifdef HAVE_GETOPT_H
1536 if test "$with_zlib" = yes; then
1537 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1538 # did not). While we could work around the lack of z_streamp, it
1539 # seems unwise to encourage people to use such old zlib versions...
1540 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1541 Use --without-zlib to disable zlib support.])],
1542 [#include <zlib.h>])
1545 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1548 AC_MSG_CHECKING([whether assembler supports lwarx hint bit])
1549 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1550 [int a = 0; int *p = &a; int r;
1551 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1552 [pgac_cv_have_ppc_mutex_hint=yes],
1553 [pgac_cv_have_ppc_mutex_hint=no])
1554 AC_MSG_RESULT([$pgac_cv_have_ppc_mutex_hint])
1555 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1556 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1561 # Check largefile support. You might think this is a system service not a
1562 # compiler characteristic, but you'd be wrong. We must check this before
1563 # probing existence of related functions such as fseeko, since the largefile
1564 # defines can affect what is generated for that.
1565 if test "$PORTNAME" != "win32"; then
1567 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1568 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1569 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1570 dnl versions where the feature actually works, it's on by default anyway.
1571 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1574 dnl Check for largefile support (must be after AC_SYS_LARGEFILE)
1575 AC_CHECK_SIZEOF([off_t])
1577 # If we don't have largefile support, can't handle segsize >= 2GB.
1578 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1579 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1582 AC_CHECK_SIZEOF([bool], [],
1583 [#ifdef HAVE_STDBOOL_H
1584 #include <stdbool.h>
1589 ## Functions, global variables
1592 PGAC_VAR_INT_TIMEZONE
1593 AC_FUNC_ACCEPT_ARGTYPES
1594 PGAC_FUNC_GETTIMEOFDAY_1ARG
1595 PGAC_FUNC_WCSTOMBS_L
1597 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1598 # symbols that that library has no business exposing to the world. Pending
1599 # acquisition of a clue by those developers, ignore libedit (including its
1600 # possible alias of libreadline) while checking for everything else.
1601 LIBS_including_readline="$LIBS"
1602 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1604 AC_CHECK_FUNCS(m4_normalize([
1618 pthread_is_threaded_np
1634 AC_REPLACE_FUNCS(fseeko)
1636 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1637 # Mingw uses macros to access Win32 API calls
1639 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1640 ac_cv_func_fseeko=yes;;
1645 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1646 # by calling it, 2009-04-02
1647 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1648 dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions
1649 AS_IF([test "$PORTNAME" != "solaris"], [
1650 AC_CHECK_FUNCS(posix_fadvise)
1651 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1654 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1655 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1656 # This is probably only present on macOS, but may as well check always
1657 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1659 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1661 AC_CHECK_TYPE([struct sockaddr_in6],
1662 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])],
1664 [$ac_includes_default
1665 #include <netinet/in.h>])
1667 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1668 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1669 [#include <machine/vmparam.h>
1670 #include <sys/exec.h>
1672 [PS_STRINGS->ps_nargvstr = 1;
1673 PS_STRINGS->ps_argvstr = "foo";])],
1674 [pgac_cv_var_PS_STRINGS=yes],
1675 [pgac_cv_var_PS_STRINGS=no])])
1676 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1677 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1681 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1682 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1683 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1687 [return isinf(glob_double) ? 0 : 1;])],
1688 [ac_cv_func_isinf=yes],
1689 [ac_cv_func_isinf=no])])
1691 if test $ac_cv_func_isinf = yes ; then
1692 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1695 # Look for a way to implement a substitute for isinf()
1696 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1699 AC_REPLACE_FUNCS(m4_normalize([
1719 # Cygwin and (apparently, based on test results) Mingw both
1720 # have a broken strtof(), so substitute the same replacement
1721 # code we use with VS2013. That's not a perfect fix, since
1722 # (unlike with VS2013) it doesn't avoid double-rounding, but
1723 # we have no better options. To get that, though, we have to
1724 # force the file to be compiled despite HAVE_STRTOF.
1727 AC_MSG_NOTICE([On $host_os we will use our strtof wrapper.])
1733 # Windows uses a specialised env handler
1734 # and doesn't need a replacement getpeereid because it doesn't use
1737 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1738 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1739 ac_cv_func_unsetenv=yes
1740 ac_cv_func_getpeereid=yes;;
1742 AC_REPLACE_FUNCS([unsetenv getpeereid])
1746 # System's version of getaddrinfo(), if any, may be used only if we found
1747 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1748 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1749 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1750 test "$PORTNAME" != "win32"; then
1751 AC_REPLACE_FUNCS([getaddrinfo])
1753 AC_LIBOBJ(getaddrinfo)
1756 # Similarly, use system's getopt_long() only if system provides struct option.
1757 if test x"$ac_cv_type_struct_option" = xyes ; then
1758 AC_REPLACE_FUNCS([getopt_long])
1760 AC_LIBOBJ(getopt_long)
1763 # On OpenBSD and Solaris, getopt() doesn't do what we want for long options
1764 # (i.e., allow '-' as a flag character), so use our version on those platforms.
1765 if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then
1769 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1770 # so always use our version on Windows.
1771 if test "$PORTNAME" = "win32"; then
1773 AC_LIBOBJ(getopt_long)
1776 # Win32 (really MinGW) support
1777 if test "$PORTNAME" = "win32"; then
1778 AC_CHECK_FUNCS(_configthreadlocale)
1779 AC_REPLACE_FUNCS(gettimeofday)
1785 AC_LIBOBJ(win32error)
1786 AC_LIBOBJ(win32security)
1787 AC_LIBOBJ(win32setlocale)
1788 AC_DEFINE([HAVE_SYMLINK], 1,
1789 [Define to 1 if you have the `symlink' function.])
1790 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1791 #define WIN32_LEAN_AND_MEAN
1792 #include <windows.h>
1794 #include <dbghelp.h>])
1796 if test x"$pgac_minidump_type" = x"yes" ; then
1797 AC_SUBST(have_win32_dbghelp,yes)
1799 AC_SUBST(have_win32_dbghelp,no)
1802 # Cygwin needs only a bit of that
1803 if test "$PORTNAME" = "cygwin"; then
1807 AC_CHECK_FUNC(syslog,
1808 [AC_CHECK_HEADER(syslog.h,
1809 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1811 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1812 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1813 [extern int opterr; opterr = 1;])],
1814 [pgac_cv_var_int_opterr=yes],
1815 [pgac_cv_var_int_opterr=no])])
1816 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1817 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1820 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1821 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1822 [extern int optreset; optreset = 1;])],
1823 [pgac_cv_var_int_optreset=yes],
1824 [pgac_cv_var_int_optreset=no])])
1825 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1826 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1829 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1830 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1831 # strto[u]ll may exist but not be declared
1832 AC_CHECK_DECLS([strtoll, strtoull])
1834 if test "$with_icu" = yes; then
1835 ac_save_CPPFLAGS=$CPPFLAGS
1836 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1838 # Verify we have ICU's header files
1839 AC_CHECK_HEADER(unicode/ucol.h, [],
1840 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1842 CPPFLAGS=$ac_save_CPPFLAGS
1845 if test "$with_llvm" = yes; then
1846 PGAC_CHECK_LLVM_FUNCTIONS()
1849 # Lastly, restore full LIBS list and check for readline/libedit symbols
1850 LIBS="$LIBS_including_readline"
1852 if test "$with_readline" = yes; then
1853 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1854 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1855 AC_CHECK_FUNCS([append_history history_truncate_file])
1859 # This test makes sure that run tests work at all. Sometimes a shared
1860 # library is found by the linker, but the runtime linker can't find it.
1861 # This check should come after all modifications of compiler or linker
1862 # variables, and before any other run tests.
1863 AC_MSG_CHECKING([test program])
1864 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1865 [AC_MSG_RESULT(ok)],
1866 [AC_MSG_RESULT(failed)
1868 Could not execute a simple test program. This may be a problem
1869 related to locating shared libraries. Check the file 'config.log'
1870 for the exact reason.]])],
1871 [AC_MSG_RESULT([cross-compiling])])
1873 # --------------------
1874 # Run tests below here
1875 # --------------------
1877 dnl Check to see if we have a working 64-bit integer type.
1878 dnl Since Postgres 8.4, we no longer support compilers without a working
1879 dnl 64-bit type; but we have to determine whether that type is called
1880 dnl "long int" or "long long int".
1882 PGAC_TYPE_64BIT_INT([long int])
1884 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1885 pg_int64_type="long int"
1887 PGAC_TYPE_64BIT_INT([long long int])
1888 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1889 pg_int64_type="long long int"
1891 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1895 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1896 [Define to the name of a signed 64-bit integer type.])
1898 # Select the printf length modifier that goes with that, too.
1899 if test x"$pg_int64_type" = x"long long int" ; then
1900 INT64_MODIFIER='"ll"'
1902 INT64_MODIFIER='"l"'
1905 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1906 [Define to the appropriate printf length modifier for 64-bit ints.])
1908 # has to be down here, rather than with the other builtins, because
1909 # the test uses PG_INT64_TYPE.
1910 PGAC_C_BUILTIN_OP_OVERFLOW
1912 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1913 AC_CHECK_SIZEOF([void *])
1914 AC_CHECK_SIZEOF([size_t])
1915 AC_CHECK_SIZEOF([long])
1917 # Decide whether float4 is passed by value: user-selectable, enabled by default
1918 AC_MSG_CHECKING([whether to build with float4 passed by value])
1919 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1920 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1921 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1922 float4passbyval=true],
1923 [float4passbyval=false])
1924 AC_MSG_RESULT([$enable_float4_byval])
1925 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1927 # Decide whether float8 is passed by value.
1928 # Note: this setting also controls int8 and related types such as timestamp.
1929 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1930 # If not, trying to select it is an error.
1931 AC_MSG_CHECKING([whether to build with float8 passed by value])
1932 if test $ac_cv_sizeof_void_p -ge 8 ; then
1933 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1935 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1936 if test "$enable_float8_byval" = yes ; then
1937 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1940 if test "$enable_float8_byval" = yes ; then
1941 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1942 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1943 float8passbyval=true
1945 float8passbyval=false
1947 AC_MSG_RESULT([$enable_float8_byval])
1948 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1950 # Determine memory alignment requirements for the basic C data types.
1952 AC_CHECK_ALIGNOF(short)
1953 AC_CHECK_ALIGNOF(int)
1954 AC_CHECK_ALIGNOF(long)
1955 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1956 AC_CHECK_ALIGNOF(long long int)
1958 AC_CHECK_ALIGNOF(double)
1960 # Compute maximum alignment of any basic type.
1961 # We assume long's alignment is at least as strong as char, short, or int;
1962 # but we must check long long (if it is being used for int64) and double.
1963 # Note that we intentionally do not consider any types wider than 64 bits,
1964 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1965 # for disk and memory space.
1967 MAX_ALIGNOF=$ac_cv_alignof_long
1968 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1969 MAX_ALIGNOF=$ac_cv_alignof_double
1971 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1972 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1974 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1977 # Some platforms predefine the types int8, int16, etc. Only check
1978 # a (hopefully) representative subset.
1979 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1980 [#include <stdio.h>])
1982 # Some compilers offer a 128-bit integer scalar type.
1983 PGAC_TYPE_128BIT_INT
1985 # Check for various atomic operations now that we have checked how to declare
1987 PGAC_HAVE_GCC__SYNC_CHAR_TAS
1988 PGAC_HAVE_GCC__SYNC_INT32_TAS
1989 PGAC_HAVE_GCC__SYNC_INT32_CAS
1990 PGAC_HAVE_GCC__SYNC_INT64_CAS
1991 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
1992 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
1995 # Check for x86 cpuid instruction
1996 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
1997 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
1998 [[unsigned int exx[4] = {0, 0, 0, 0};
1999 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
2001 [pgac_cv__get_cpuid="yes"],
2002 [pgac_cv__get_cpuid="no"])])
2003 if test x"$pgac_cv__get_cpuid" = x"yes"; then
2004 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
2007 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
2008 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
2009 [[unsigned int exx[4] = {0, 0, 0, 0};
2010 __get_cpuid(exx[0], 1);
2012 [pgac_cv__cpuid="yes"],
2013 [pgac_cv__cpuid="no"])])
2014 if test x"$pgac_cv__cpuid" = x"yes"; then
2015 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2018 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2020 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2021 # with the default compiler flags. If not, check if adding the -msse4.2
2022 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2023 PGAC_SSE42_CRC32_INTRINSICS([])
2024 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2025 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2027 AC_SUBST(CFLAGS_SSE42)
2029 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2030 # define __SSE4_2__ in that case.
2031 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2033 #error __SSE4_2__ not defined
2035 ])], [SSE4_2_TARGETED=1])
2037 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2039 # First check if __crc32c* intrinsics can be used with the default compiler
2040 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2041 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2042 PGAC_ARMV8_CRC32C_INTRINSICS([])
2043 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2044 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2046 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2048 # Select CRC-32C implementation.
2050 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2051 # use the special CRC instructions for calculating CRC-32C. If we're not
2052 # targeting such a processor, but we can nevertheless produce code that uses
2053 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2054 # implementations and select which one to use at runtime, depending on whether
2055 # SSE 4.2 is supported by the processor we're running on.
2057 # Similarly, if we are targeting an ARM processor that has the CRC
2058 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2059 # we're not targeting such a processor, but can nevertheless produce code that
2060 # uses the CRC instructions, compile both, and select at runtime.
2062 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2063 # in the template or configure command line.
2064 if test x"$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
2065 # Use Intel SSE 4.2 if available.
2066 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2069 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2070 # the runtime check.
2071 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2072 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2074 # Use ARM CRC Extension if available.
2075 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2078 # ARM CRC Extension, with runtime check?
2079 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2080 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2082 # fall back to slicing-by-8 algorithm, which doesn't require any
2083 # special CPU support.
2084 USE_SLICING_BY_8_CRC32C=1
2091 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2092 AC_MSG_CHECKING([which CRC-32C implementation to use])
2093 if test x"$USE_SSE42_CRC32C" = x"1"; then
2094 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2095 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2096 AC_MSG_RESULT(SSE 4.2)
2098 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2099 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2100 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2101 AC_MSG_RESULT(SSE 4.2 with runtime check)
2103 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2104 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2105 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2106 AC_MSG_RESULT(ARMv8 CRC instructions)
2108 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2109 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2110 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2111 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2113 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2114 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2115 AC_MSG_RESULT(slicing-by-8)
2120 AC_SUBST(PG_CRC32C_OBJS)
2123 # Select semaphore implementation type.
2124 if test "$PORTNAME" != "win32"; then
2125 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2126 # Need sem_open for this
2127 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2129 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2130 # Need sem_init for this
2131 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2133 AC_MSG_CHECKING([which semaphore API to use])
2134 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2135 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2136 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2137 sematype="named POSIX"
2139 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2140 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2141 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2142 sematype="unnamed POSIX"
2144 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2145 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2149 AC_MSG_RESULT([$sematype])
2151 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2152 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2156 # Select shared-memory implementation type.
2157 if test "$PORTNAME" != "win32"; then
2158 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2159 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2161 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2162 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2165 # Select random number source
2167 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2168 # in the template or configure command line.
2170 # If not selected manually, try to select a source automatically.
2171 if test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2172 if test x"$with_openssl" = x"yes" ; then
2173 USE_OPENSSL_RANDOM=1
2174 elif test "$PORTNAME" = "win32" ; then
2177 AC_CHECK_FILE([/dev/urandom], [], [])
2179 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2185 AC_MSG_CHECKING([which random number source to use])
2186 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2187 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2188 AC_MSG_RESULT([OpenSSL])
2189 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2190 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2191 AC_MSG_RESULT([Windows native])
2192 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2193 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2194 AC_MSG_RESULT([/dev/urandom])
2197 no source of strong random numbers was found
2198 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers.])
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 $perl_includespec"
2233 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2234 [#include <EXTERN.h>])
2235 # While we're at it, check that we can link to libperl.
2236 # On most platforms, if perl.h is there then libperl.so will be too, but at
2237 # this writing Debian packages them separately. There is no known reason to
2238 # waste cycles on separate probes for the Tcl or Python libraries, though.
2239 pgac_save_LIBS=$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, $PG_VERSION_NUM, [PostgreSQL version as a number])
2365 AC_SUBST(PG_VERSION_NUM)
2367 # If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not
2368 # literally, so that it's possible to override it at build time using
2369 # a command like "make ... PG_SYSROOT=path". This has to be done after
2370 # we've finished all configure checks that depend on CPPFLAGS.
2371 if test x"$PG_SYSROOT" != x; then
2372 CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"`
2374 AC_SUBST(PG_SYSROOT)
2377 # Begin output steps
2379 AC_MSG_NOTICE([using compiler=$cc_string])
2380 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2381 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2382 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2383 # Currently only used when LLVM is used
2384 if test "$with_llvm" = yes ; then
2385 AC_MSG_NOTICE([using CXX=$CXX])
2386 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2387 AC_MSG_NOTICE([using CLANG=$CLANG])
2388 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2389 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2392 # prepare build tree if outside source tree
2393 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2394 # Note 2: /bin/pwd might be better than shell's built-in at getting
2395 # a symlink-free name.
2396 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2400 if test "$no_create" != yes; then
2401 _AS_ECHO_N([preparing build tree... ])
2402 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2403 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2404 || AC_MSG_ERROR(failed)
2408 AC_SUBST(vpath_build)
2411 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2414 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2415 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2416 src/include/pg_config_os.h:src/include/port/${template}.h
2417 src/Makefile.port:src/makefiles/Makefile.${template}
2420 if test "$PORTNAME" = "win32"; then
2421 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2422 # Links sometimes fail undetected on Mingw -
2423 # so here we detect it and warn the user
2424 for FILE in $CONFIG_LINKS
2426 # test -e works for symlinks in the MinGW console
2427 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2432 AC_CONFIG_HEADERS([src/include/pg_config.h],
2434 # Update timestamp for pg_config.h (see Makefile.global)
2435 echo >src/include/stamp-h
2438 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2440 # Update timestamp for pg_config_ext.h (see Makefile.global)
2441 echo >src/include/stamp-ext-h
2444 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2445 [echo >src/interfaces/ecpg/include/stamp-h])