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], [13devel], [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 "$PORTNAME" = "hpux"; then
544 # On some versions of HP-UX, libm functions do not set errno by default.
545 # Fix that by using +Olibmerrno if the compiler recognizes it.
546 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno])
547 PGAC_PROG_CXX_CFLAGS_OPT([+Olibmerrno])
550 AC_SUBST(CFLAGS_VECTOR)
552 # Determine flags used to emit bitcode for JIT inlining. Need to test
553 # for behaviour changing compiler flags, to keep compatibility with
554 # compiler used for normal postgres code.
555 if test "$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 $user_BITCODE_CXXFLAGS"
610 AC_SUBST(BITCODE_CFLAGS)
611 AC_SUBST(BITCODE_CXXFLAGS)
613 # The template file must set up CFLAGS_SL; we don't support user override
616 # Check if the compiler still works with the final flag settings
617 # (note, we're not checking that for CXX, which is optional)
618 AC_MSG_CHECKING([whether the C compiler still works])
619 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
620 [AC_MSG_RESULT(yes)],
622 AC_MSG_ERROR([cannot proceed])])
624 # Defend against gcc -ffast-math
625 if test "$GCC" = yes; then
626 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__
628 @%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])])
631 # Defend against clang being used on x86-32 without SSE2 enabled. As current
632 # versions of clang do not understand -fexcess-precision=standard, the use of
633 # x87 floating point operations leads to problems like isinf possibly returning
634 # false for a value that is infinite when converted from the 80bit register to
635 # the 8byte memory representation.
637 # Only perform the test if the compiler doesn't understand
638 # -fexcess-precision=standard, that way a potentially fixed compiler will work
640 if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then
641 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
642 @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__)
646 [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])])
654 # Set up TAS assembly code if needed; the template file has now had its
655 # chance to request this.
657 AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}])
659 if test "$need_tas" = yes ; then
668 # Automatic dependency tracking
670 PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking],
676 # Enable assert checks
678 PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)],
679 [AC_DEFINE([USE_ASSERT_CHECKING], 1,
680 [Define to 1 to build with assertion checks. (--enable-cassert)])])
684 # Include directories
687 IFS="${IFS}${PATH_SEPARATOR}"
688 # SRCH_INC comes from the template file
689 for dir in $with_includes $SRCH_INC; do
690 if test -d "$dir"; then
691 INCLUDES="$INCLUDES -I$dir"
693 AC_MSG_WARN([*** Include directory $dir does not exist.])
701 # Library directories
704 IFS="${IFS}${PATH_SEPARATOR}"
705 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
706 for dir in $LIBRARY_DIRS $SRCH_LIB; do
707 if test -d "$dir"; then
708 LIBDIRS="$LIBDIRS -L$dir"
710 AC_MSG_WARN([*** Library directory $dir does not exist.])
716 # Enable thread-safe client libraries
718 AC_MSG_CHECKING([allow thread-safe client libraries])
719 PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries])
720 if test "$enable_thread_safety" = yes; then
721 AC_DEFINE([ENABLE_THREAD_SAFETY], 1,
722 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)])
724 AC_MSG_RESULT([$enable_thread_safety])
725 AC_SUBST(enable_thread_safety)
730 AC_MSG_CHECKING([whether to build with ICU support])
731 PGAC_ARG_BOOL(with, icu, no, [build with ICU support],
732 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])])
733 AC_MSG_RESULT([$with_icu])
736 if test "$with_icu" = yes; then
737 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n)
741 # Optionally build Tcl modules (PL/Tcl)
743 AC_MSG_CHECKING([whether to build with Tcl])
744 PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)])
745 AC_MSG_RESULT([$with_tcl])
748 # We see if the path to the Tcl/Tk configuration scripts is specified.
749 # This will override the use of tclsh to find the paths to search.
751 PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR])
754 # Optionally build Perl modules (PL/Perl)
756 AC_MSG_CHECKING([whether to build Perl modules])
757 PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)])
758 AC_MSG_RESULT([$with_perl])
762 # Optionally build Python modules (PL/Python)
764 AC_MSG_CHECKING([whether to build Python modules])
765 PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)])
766 AC_MSG_RESULT([$with_python])
767 AC_SUBST(with_python)
772 AC_MSG_CHECKING([whether to build with GSSAPI support])
773 PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support],
775 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)])
776 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab"
778 AC_MSG_RESULT([$with_gssapi])
779 AC_SUBST(with_gssapi)
786 # Kerberos configuration parameters
788 PGAC_ARG_REQ(with, krb-srvnam,
789 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]],
791 [with_krb_srvnam="postgres"])
792 AC_SUBST(with_krb_srvnam)
793 AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"],
794 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)])
800 AC_MSG_CHECKING([whether to build with PAM support])
801 PGAC_ARG_BOOL(with, pam, no,
802 [build with PAM support],
803 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])])
804 AC_MSG_RESULT([$with_pam])
810 AC_MSG_CHECKING([whether to build with BSD Authentication support])
811 PGAC_ARG_BOOL(with, bsd-auth, no,
812 [build with BSD Authentication support],
813 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])])
814 AC_MSG_RESULT([$with_bsd_auth])
820 AC_MSG_CHECKING([whether to build with LDAP support])
821 PGAC_ARG_BOOL(with, ldap, no,
822 [build with LDAP support],
823 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])])
824 AC_MSG_RESULT([$with_ldap])
831 AC_MSG_CHECKING([whether to build with Bonjour support])
832 PGAC_ARG_BOOL(with, bonjour, no,
833 [build with Bonjour support],
834 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])])
835 AC_MSG_RESULT([$with_bonjour])
841 AC_MSG_CHECKING([whether to build with OpenSSL support])
842 PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support],
843 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])])
844 AC_MSG_RESULT([$with_openssl])
845 AC_SUBST(with_openssl)
850 AC_MSG_CHECKING([whether to build with SELinux support])
851 PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support])
852 AC_SUBST(with_selinux)
853 AC_MSG_RESULT([$with_selinux])
858 AC_MSG_CHECKING([whether to build with systemd support])
859 PGAC_ARG_BOOL(with, systemd, no, [build with systemd support],
860 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])])
861 AC_SUBST(with_systemd)
862 AC_MSG_RESULT([$with_systemd])
867 PGAC_ARG_BOOL(with, readline, yes,
868 [do not use GNU Readline nor BSD Libedit for editing])
869 # readline on MinGW has problems with backslashes in psql and other bugs.
870 # This is particularly a problem with non-US code pages.
871 # Therefore disable its use until we understand the cause. 2004-07-20
872 if test "$PORTNAME" = "win32"; then
873 if test "$with_readline" = yes; then
874 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling])
883 PGAC_ARG_BOOL(with, libedit-preferred, no,
884 [prefer BSD Libedit over GNU Readline])
890 # There are at least three UUID libraries in common use: the FreeBSD/NetBSD
891 # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP
892 # UUID library. More than one of these might be present on a given platform,
893 # so we make the user say which one she wants.
895 PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)])
896 if test x"$with_uuid" = x"" ; then
899 PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp])
900 if test "$with_ossp_uuid" = yes ; then
904 if test "$with_uuid" = bsd ; then
905 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.])
906 UUID_EXTRA_OBJS="md5.o sha1.o"
907 elif test "$with_uuid" = e2fs ; then
908 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.])
909 UUID_EXTRA_OBJS="md5.o sha1.o"
910 elif test "$with_uuid" = ossp ; then
911 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.])
913 elif test "$with_uuid" = no ; then
916 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp])
919 AC_SUBST(UUID_EXTRA_OBJS)
925 PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
926 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
928 if test "$with_libxml" = yes ; then
929 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
930 AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl
931 if test -n "$XML2_CONFIG"; then
932 for pgac_option in `$XML2_CONFIG --cflags`; do
934 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
937 for pgac_option in `$XML2_CONFIG --libs`; do
939 -L*) LDFLAGS="$LDFLAGS $pgac_option";;
945 AC_SUBST(with_libxml)
950 PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2],
951 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])])
954 AC_SUBST(with_libxslt)
959 PGAC_ARG_REQ(with, system-tzdata,
960 [DIR], [use system time zone data in DIR])
961 AC_SUBST(with_system_tzdata)
966 PGAC_ARG_BOOL(with, zlib, yes,
974 CPPFLAGS="$CPPFLAGS $INCLUDES"
975 LDFLAGS="$LDFLAGS $LIBDIRS"
977 AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only])
978 AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only])
982 AC_SUBST(with_gnu_ld)
985 AC_CHECK_TOOL(AR, ar, ar)
986 if test "$PORTNAME" = "win32"; then
987 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool)
988 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap)
989 AC_CHECK_TOOL(WINDRES, windres, windres)
993 # When Autoconf chooses install-sh as install program it tries to generate
994 # a relative path to it in each makefile where it substitutes it. This clashes
995 # with our Makefile.global concept. This workaround helps.
997 *install-sh*) install_bin='';;
998 *) install_bin=$INSTALL;;
1000 AC_SUBST(install_bin)
1002 PGAC_PATH_PROGS(TAR, tar)
1005 # When Autoconf chooses install-sh as mkdir -p program it tries to generate
1006 # a relative path to it in each makefile where it substitutes it. This clashes
1007 # with our Makefile.global concept. This workaround helps.
1009 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';;
1016 if test "$with_perl" = yes; then
1017 if test -z "$PERL"; then
1018 AC_MSG_ERROR([Perl not found])
1020 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib])
1021 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then
1022 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library
1023 You might have to rebuild your Perl installation. Refer to the
1024 documentation for details. Use --without-perl to disable building
1027 # On most platforms, archlibexp is also where the Perl include files live ...
1028 perl_includespec="-I$perl_archlibexp/CORE"
1029 # ... but on newer macOS versions, we must use -iwithsysroot to look
1031 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then
1032 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then
1033 perl_includespec="-iwithsysroot $perl_archlibexp/CORE"
1036 AC_SUBST(perl_includespec)dnl
1037 PGAC_CHECK_PERL_EMBED_CCFLAGS
1038 PGAC_CHECK_PERL_EMBED_LDFLAGS
1041 if test "$with_python" = yes; then
1043 PGAC_CHECK_PYTHON_EMBED_SETUP
1046 if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then
1047 PGAC_PATH_PROGS(ZIC, zic)
1048 if test -z "$ZIC"; then
1050 When cross-compiling, either use the option --with-system-tzdata to use
1051 existing time-zone data, or set the environment variable ZIC to a zic
1052 program to use during the build.])
1059 # For each platform, we need to know about any special compile and link
1060 # libraries, and whether the normal C function names are thread-safe.
1061 # See the comment at the top of src/port/thread.c for more information.
1062 # WIN32 doesn't need the pthread tests; it always uses threads
1064 # These tests are run before the library-tests, because linking with the
1065 # other libraries can pull in the pthread functions as a side-effect. We
1066 # want to use the -pthread or similar flags directly, and not rely on
1067 # the side-effects of linking with some other library.
1069 dnl note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER
1070 dnl invocation below is the first one in the script, and autoconf generates
1071 dnl additional code for that, which must not be inside the if-block. AS_IF
1072 dnl knows how to do that.
1073 AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"],
1075 AX_PTHREAD # set thread flags
1077 # Some platforms use these, so just define them. They can't hurt if they
1078 # are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS
1079 # enables 5-arg getpwuid_r, among other things.
1080 PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS"
1082 # Check for *_r functions
1085 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1086 LIBS="$LIBS $PTHREAD_LIBS"
1088 AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([
1089 pthread.h not found; use --disable-thread-safety to disable thread safety])])
1091 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
1093 # Do test here with the proper thread flags
1094 PGAC_FUNC_STRERROR_R_INT
1100 # do not use values from template file
1105 AC_SUBST(PTHREAD_CFLAGS)
1106 AC_SUBST(PTHREAD_LIBS)
1112 ## Most libraries are included only if they demonstrably provide a function
1113 ## we need, but libm is an exception: always include it, because there are
1114 ## too many compilers that play cute optimization games that will break
1115 ## probes for standard functions such as pow().
1118 AC_CHECK_LIB(m, main)
1119 AC_SEARCH_LIBS(setproctitle, util)
1120 AC_SEARCH_LIBS(dlopen, dl)
1121 AC_SEARCH_LIBS(socket, [socket ws2_32])
1122 AC_SEARCH_LIBS(shl_load, dld)
1123 AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
1124 AC_SEARCH_LIBS(shm_open, rt)
1125 AC_SEARCH_LIBS(shm_unlink, rt)
1126 AC_SEARCH_LIBS(clock_gettime, [rt posix4])
1128 AC_SEARCH_LIBS(fdatasync, [rt posix4])
1129 # Required for thread_test.c on Solaris
1130 AC_SEARCH_LIBS(sched_yield, rt)
1131 # Required for thread_test.c on Solaris 2.5:
1132 # Other ports use it too (HP-UX) so test unconditionally
1133 AC_SEARCH_LIBS(gethostbyname_r, nsl)
1135 AC_SEARCH_LIBS(shmget, cygipc)
1137 if test "$with_readline" = yes; then
1139 if test x"$pgac_cv_check_readline" = x"no"; then
1140 AC_MSG_ERROR([readline library not found
1141 If you have readline already installed, see config.log for details on the
1142 failure. It is possible the compiler isn't looking in the proper directory.
1143 Use --without-readline to disable readline support.])
1147 if test "$with_zlib" = yes; then
1148 AC_CHECK_LIB(z, inflate, [],
1149 [AC_MSG_ERROR([zlib library not found
1150 If you have zlib already installed, see config.log for details on the
1151 failure. It is possible the compiler isn't looking in the proper directory.
1152 Use --without-zlib to disable zlib support.])])
1155 if test "$enable_spinlocks" = yes; then
1156 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.])
1159 *** Not using spinlocks will cause poor performance.])
1162 if test "$enable_atomics" = yes; then
1163 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.])
1166 *** Not using atomic operations will cause poor performance.])
1169 if test "$with_gssapi" = yes ; then
1170 if test "$PORTNAME" != "win32"; then
1171 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [],
1172 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])])
1174 LIBS="$LIBS -lgssapi32"
1178 if test "$with_openssl" = yes ; then
1180 if test "$PORTNAME" != "win32"; then
1181 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])])
1182 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])])
1184 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])])
1185 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])])
1187 AC_CHECK_FUNCS([SSL_clear_options SSL_get_current_compression X509_get_signature_nid])
1188 # Functions introduced in OpenSSL 1.1.0. We used to check for
1189 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
1190 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
1191 # doesn't have these OpenSSL 1.1.0 functions. So check for individual
1193 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data])
1194 # OpenSSL versions before 1.1.0 required setting callback functions, for
1195 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
1196 # function was removed.
1197 AC_CHECK_FUNCS([CRYPTO_lock])
1200 if test "$with_pam" = yes ; then
1201 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])])
1204 if test "$with_libxml" = yes ; then
1205 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])])
1208 if test "$with_libxslt" = yes ; then
1209 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])])
1212 # Note: We can test for libldap_r only after we know PTHREAD_LIBS
1213 if test "$with_ldap" = yes ; then
1215 if test "$PORTNAME" != "win32"; then
1216 AC_CHECK_LIB(ldap, ldap_bind, [],
1217 [AC_MSG_ERROR([library 'ldap' is required for LDAP])],
1219 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS"
1220 if test "$enable_thread_safety" = yes; then
1221 # on some platforms ldap_r fails to link without PTHREAD_LIBS
1222 AC_CHECK_LIB(ldap_r, ldap_simple_bind, [],
1223 [AC_MSG_ERROR([library 'ldap_r' is required for LDAP])],
1224 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS])
1225 LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"
1227 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"
1229 AC_CHECK_FUNCS([ldap_initialize])
1231 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])])
1232 LDAP_LIBS_FE="-lwldap32"
1233 LDAP_LIBS_BE="-lwldap32"
1237 AC_SUBST(LDAP_LIBS_FE)
1238 AC_SUBST(LDAP_LIBS_BE)
1240 # for contrib/sepgsql
1241 if test "$with_selinux" = yes; then
1242 AC_CHECK_LIB(selinux, security_compute_create_name, [],
1243 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])])
1246 # for contrib/uuid-ossp
1247 if test "$with_uuid" = bsd ; then
1248 # On BSD, the UUID functions are in libc
1249 AC_CHECK_FUNC(uuid_to_string,
1251 [AC_MSG_ERROR([BSD UUID functions are not present])])
1252 elif test "$with_uuid" = e2fs ; then
1253 # On macOS, the UUID functions are in libc
1254 AC_CHECK_FUNC(uuid_generate,
1256 [AC_CHECK_LIB(uuid, uuid_generate,
1257 [UUID_LIBS="-luuid"],
1258 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])])
1259 elif test "$with_uuid" = ossp ; then
1260 AC_CHECK_LIB(ossp-uuid, uuid_export,
1261 [UUID_LIBS="-lossp-uuid"],
1262 [AC_CHECK_LIB(uuid, uuid_export,
1263 [UUID_LIBS="-luuid"],
1264 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])])
1275 AC_CHECK_HEADERS(m4_normalize([
1304 # On BSD, test for net/if.h will fail unless sys/socket.h
1305 # is included first.
1306 AC_CHECK_HEADERS(net/if.h, [], [],
1307 [AC_INCLUDES_DEFAULT
1308 #include <sys/socket.h>
1311 # On OpenBSD, test for sys/ucred.h will fail unless sys/param.h
1312 # is included first.
1313 AC_CHECK_HEADERS(sys/ucred.h, [], [],
1314 [AC_INCLUDES_DEFAULT
1315 #include <sys/param.h>
1318 # At least on IRIX, test for netinet/tcp.h will fail unless
1319 # netinet/in.h is included first.
1320 AC_CHECK_HEADERS(netinet/tcp.h, [], [],
1321 [AC_INCLUDES_DEFAULT
1322 #include <netinet/in.h>
1325 if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then
1326 AC_CHECK_HEADERS(readline/readline.h, [],
1327 [AC_CHECK_HEADERS(readline.h, [],
1328 [AC_MSG_ERROR([readline header not found
1329 If you have readline already installed, see config.log for details on the
1330 failure. It is possible the compiler isn't looking in the proper directory.
1331 Use --without-readline to disable readline support.])])])
1332 AC_CHECK_HEADERS(readline/history.h, [],
1333 [AC_CHECK_HEADERS(history.h, [],
1334 [AC_MSG_ERROR([history header not found
1335 If you have readline already installed, see config.log for details on the
1336 failure. It is possible the compiler isn't looking in the proper directory.
1337 Use --without-readline to disable readline support.])])])
1340 if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then
1341 # Some installations of libedit usurp /usr/include/readline/, which seems
1342 # bad practice, since in combined installations readline will have its headers
1343 # there. We might have to resort to AC_EGREP checks to make sure we found
1344 # the proper header...
1345 AC_CHECK_HEADERS(editline/readline.h, [],
1346 [AC_CHECK_HEADERS(readline.h, [],
1347 [AC_CHECK_HEADERS(readline/readline.h, [],
1348 [AC_MSG_ERROR([readline header not found
1349 If you have libedit already installed, see config.log for details on the
1350 failure. It is possible the compiler isn't looking in the proper directory.
1351 Use --without-readline to disable libedit support.])])])])
1352 # Note: in a libedit installation, history.h is sometimes a dummy, and may
1353 # not be there at all. Hence, don't complain if not found. We must check
1354 # though, since in yet other versions it is an independent header.
1355 AC_CHECK_HEADERS(editline/history.h, [],
1356 [AC_CHECK_HEADERS(history.h, [],
1357 [AC_CHECK_HEADERS(readline/history.h)])])
1360 if test "$with_zlib" = yes; then
1361 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found
1362 If you have zlib already installed, see config.log for details on the
1363 failure. It is possible the compiler isn't looking in the proper directory.
1364 Use --without-zlib to disable zlib support.])])
1367 if test "$with_gssapi" = yes ; then
1368 AC_CHECK_HEADERS(gssapi/gssapi.h, [],
1369 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])
1372 if test "$with_openssl" = yes ; then
1373 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])])
1374 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])])
1377 if test "$with_pam" = yes ; then
1378 AC_CHECK_HEADERS(security/pam_appl.h, [],
1379 [AC_CHECK_HEADERS(pam/pam_appl.h, [],
1380 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])])
1383 if test "$with_bsd_auth" = yes ; then
1384 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])])
1387 if test "$with_systemd" = yes ; then
1388 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])])
1391 if test "$with_libxml" = yes ; then
1392 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])])
1395 if test "$with_libxslt" = yes ; then
1396 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])])
1399 if test "$with_ldap" = yes ; then
1400 if test "$PORTNAME" != "win32"; then
1401 AC_CHECK_HEADERS(ldap.h, [],
1402 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])])
1405 AC_CHECK_HEADERS(winldap.h, [],
1406 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])],
1407 [AC_INCLUDES_DEFAULT
1408 #include <windows.h>
1413 if test "$with_bonjour" = yes ; then
1414 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
1415 dnl At some point we might add something like
1416 dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
1417 dnl but right now, what that would mainly accomplish is to encourage
1418 dnl people to try to use the avahi implementation, which does not work.
1419 dnl If you want to use Apple's own Bonjour code on another platform,
1420 dnl just add -ldns_sd to LIBS manually.
1423 # for contrib/uuid-ossp
1424 if test "$with_uuid" = bsd ; then
1425 AC_CHECK_HEADERS(uuid.h,
1426 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [],
1427 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])],
1428 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])])
1429 elif test "$with_uuid" = e2fs ; then
1430 AC_CHECK_HEADERS(uuid/uuid.h,
1431 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [],
1432 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])],
1433 [AC_CHECK_HEADERS(uuid.h,
1434 [AC_EGREP_HEADER([uuid_generate], uuid.h, [],
1435 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])],
1436 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])])
1437 elif test "$with_uuid" = ossp ; then
1438 AC_CHECK_HEADERS(ossp/uuid.h,
1439 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [],
1440 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])],
1441 [AC_CHECK_HEADERS(uuid.h,
1442 [AC_EGREP_HEADER([uuid_export], uuid.h, [],
1443 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])],
1444 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])])
1447 if test "$PORTNAME" = "win32" ; then
1448 AC_CHECK_HEADERS(crtdefs.h)
1452 ## Types, structures, compiler characteristics
1455 m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that.
1458 PGAC_PRINTF_ARCHETYPE
1459 AC_C_FLEXIBLE_ARRAY_MEMBER
1461 PGAC_C_FUNCNAME_SUPPORT
1462 PGAC_C_STATIC_ASSERT
1464 PGAC_C_TYPES_COMPATIBLE
1465 PGAC_C_BUILTIN_CONSTANT_P
1466 PGAC_C_BUILTIN_UNREACHABLE
1467 PGAC_C_COMPUTED_GOTO
1468 PGAC_STRUCT_TIMEZONE
1470 PGAC_STRUCT_SOCKADDR_UN
1471 PGAC_STRUCT_SOCKADDR_STORAGE
1472 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
1473 PGAC_STRUCT_ADDRINFO
1476 AC_TYPE_LONG_LONG_INT
1480 # MSVC doesn't cope well with defining restrict to __restrict, the
1481 # spelling it understands, because it conflicts with
1482 # __declspec(restrict). Therefore we define pg_restrict to the
1483 # appropriate definition, which presumably won't conflict.
1485 # Allow platforms with buggy compilers to force restrict to not be
1486 # used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant
1489 if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then
1492 pg_restrict="$ac_cv_c_restrict"
1494 AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict],
1495 [Define to keyword to use for C99 restrict support, or to nothing if not
1498 AC_CHECK_TYPES([struct cmsgcred], [], [],
1499 [#include <sys/socket.h>
1500 #include <sys/param.h>
1501 #ifdef HAVE_SYS_UCRED_H
1502 #include <sys/ucred.h>
1505 AC_CHECK_TYPES([struct option], [], [],
1506 [#ifdef HAVE_GETOPT_H
1510 if test "$with_zlib" = yes; then
1511 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4
1512 # did not). While we could work around the lack of z_streamp, it
1513 # seems unwise to encourage people to use such old zlib versions...
1514 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old
1515 Use --without-zlib to disable zlib support.])],
1516 [#include <zlib.h>])
1521 # On x86_64, check if we can compile a popcntq instruction
1522 AC_CACHE_CHECK([whether assembler supports x86_64 popcntq],
1523 [pgac_cv_have_x86_64_popcntq],
1524 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1525 [long long x = 1; long long r;
1526 __asm__ __volatile__ (" popcntq %1,%0\n" : "=q"(r) : "rm"(x));])],
1527 [pgac_cv_have_x86_64_popcntq=yes],
1528 [pgac_cv_have_x86_64_popcntq=no])])
1529 if test x"$pgac_cv_have_x86_64_popcntq" = xyes ; then
1530 AC_DEFINE(HAVE_X86_64_POPCNTQ, 1, [Define to 1 if the assembler supports X86_64's POPCNTQ instruction.])
1534 # On PPC, check if assembler supports LWARX instruction's mutex hint bit
1535 AC_CACHE_CHECK([whether assembler supports lwarx hint bit],
1536 [pgac_cv_have_ppc_mutex_hint],
1537 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
1538 [int a = 0; int *p = &a; int r;
1539 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])],
1540 [pgac_cv_have_ppc_mutex_hint=yes],
1541 [pgac_cv_have_ppc_mutex_hint=no])])
1542 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then
1543 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.])
1545 # Check if compiler accepts "i"(x) when __builtin_constant_p(x).
1546 AC_CACHE_CHECK([whether __builtin_constant_p(x) implies "i"(x) acceptance],
1547 [pgac_cv_have_i_constraint__builtin_constant_p],
1548 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1550 addi(int ra, int si)
1553 if (__builtin_constant_p(si))
1554 __asm__ __volatile__(
1555 " addi %0,%1,%2\n" : "=r"(res) : "b"(ra), "i"(si));
1558 int test_adds(int x) { return addi(3, x) + addi(x, 5); }], [])],
1559 [pgac_cv_have_i_constraint__builtin_constant_p=yes],
1560 [pgac_cv_have_i_constraint__builtin_constant_p=no])])
1561 if test x"$pgac_cv_have_i_constraint__builtin_constant_p" = xyes ; then
1562 AC_DEFINE(HAVE_I_CONSTRAINT__BUILTIN_CONSTANT_P, 1,
1563 [Define to 1 if __builtin_constant_p(x) implies "i"(x) acceptance.])
1568 # Check largefile support. You might think this is a system service not a
1569 # compiler characteristic, but you'd be wrong. We must check this before
1570 # probing existence of related functions such as fseeko, since the largefile
1571 # defines can affect what is generated for that.
1572 if test "$PORTNAME" != "win32"; then
1574 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define
1575 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a
1576 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS
1577 dnl versions where the feature actually works, it's on by default anyway.
1578 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[])
1581 dnl Check for largefile support (must be after AC_SYS_LARGEFILE)
1582 AC_CHECK_SIZEOF([off_t])
1584 # If we don't have largefile support, can't handle segsize >= 2GB.
1585 if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
1586 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
1589 AC_CHECK_SIZEOF([bool], [],
1590 [#ifdef HAVE_STDBOOL_H
1591 #include <stdbool.h>
1596 ## Functions, global variables
1599 PGAC_VAR_INT_TIMEZONE
1600 AC_FUNC_ACCEPT_ARGTYPES
1601 PGAC_FUNC_GETTIMEOFDAY_1ARG
1602 PGAC_FUNC_WCSTOMBS_L
1604 # Some versions of libedit contain strlcpy(), setproctitle(), and other
1605 # symbols that that library has no business exposing to the world. Pending
1606 # acquisition of a clue by those developers, ignore libedit (including its
1607 # possible alias of libreadline) while checking for everything else.
1608 LIBS_including_readline="$LIBS"
1609 LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
1611 AC_CHECK_FUNCS(m4_normalize([
1626 pthread_is_threaded_np
1642 # These typically are compiler builtins, for which AC_CHECK_FUNCS fails.
1643 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap16], [int x])
1644 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap32], [int x])
1645 PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap64], [long int x])
1646 # We assume that we needn't test all widths of these explicitly:
1647 PGAC_CHECK_BUILTIN_FUNC([__builtin_clz], [unsigned int x])
1648 PGAC_CHECK_BUILTIN_FUNC([__builtin_ctz], [unsigned int x])
1649 PGAC_CHECK_BUILTIN_FUNC([__builtin_popcount], [unsigned int x])
1651 AC_REPLACE_FUNCS(fseeko)
1653 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos
1654 # Mingw uses macros to access Win32 API calls
1656 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
1657 ac_cv_func_fseeko=yes;;
1662 # posix_fadvise() is a no-op on Solaris, so don't incur function overhead
1663 # by calling it, 2009-04-02
1664 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
1665 dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions
1666 AS_IF([test "$PORTNAME" != "solaris"], [
1667 AC_CHECK_FUNCS(posix_fadvise)
1668 AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>])
1671 AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
1672 AC_CHECK_DECLS([strlcat, strlcpy, strnlen])
1673 # This is probably only present on macOS, but may as well check always
1674 AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>])
1676 AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>])
1678 AC_CHECK_TYPE([struct sockaddr_in6],
1679 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])],
1681 [$ac_includes_default
1682 #include <netinet/in.h>])
1684 AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS],
1685 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
1686 [#include <machine/vmparam.h>
1687 #include <sys/exec.h>
1689 [PS_STRINGS->ps_nargvstr = 1;
1690 PS_STRINGS->ps_argvstr = "foo";])],
1691 [pgac_cv_var_PS_STRINGS=yes],
1692 [pgac_cv_var_PS_STRINGS=no])])
1693 if test "$pgac_cv_var_PS_STRINGS" = yes ; then
1694 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.])
1698 dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
1699 AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
1700 [AC_LINK_IFELSE([AC_LANG_PROGRAM([
1704 [return isinf(glob_double) ? 0 : 1;])],
1705 [ac_cv_func_isinf=yes],
1706 [ac_cv_func_isinf=no])])
1708 if test $ac_cv_func_isinf = yes ; then
1709 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().])
1712 # Look for a way to implement a substitute for isinf()
1713 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
1716 AC_REPLACE_FUNCS(m4_normalize([
1736 # Cygwin and (apparently, based on test results) Mingw both
1737 # have a broken strtof(), so substitute the same replacement
1738 # code we use with VS2013. That's not a perfect fix, since
1739 # (unlike with VS2013) it doesn't avoid double-rounding, but
1740 # we have no better options. To get that, though, we have to
1741 # force the file to be compiled despite HAVE_STRTOF.
1744 AC_MSG_NOTICE([On $host_os we will use our strtof wrapper.])
1750 # Windows uses a specialised env handler
1751 # and doesn't need a replacement getpeereid because it doesn't use
1754 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.])
1755 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.])
1756 ac_cv_func_unsetenv=yes
1757 ac_cv_func_getpeereid=yes;;
1759 AC_REPLACE_FUNCS([unsetenv getpeereid])
1763 # System's version of getaddrinfo(), if any, may be used only if we found
1764 # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
1765 # We use only our own getaddrinfo.c on Windows, but it's time to revisit that.
1766 if test x"$ac_cv_type_struct_addrinfo" = xyes && \
1767 test "$PORTNAME" != "win32"; then
1768 AC_REPLACE_FUNCS([getaddrinfo])
1770 AC_LIBOBJ(getaddrinfo)
1773 # Similarly, use system's getopt_long() only if system provides struct option.
1774 if test x"$ac_cv_type_struct_option" = xyes ; then
1775 AC_REPLACE_FUNCS([getopt_long])
1777 AC_LIBOBJ(getopt_long)
1780 # On OpenBSD and Solaris, getopt() doesn't do what we want for long options
1781 # (i.e., allow '-' as a flag character), so use our version on those platforms.
1782 if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then
1786 # mingw has adopted a GNU-centric interpretation of optind/optreset,
1787 # so always use our version on Windows.
1788 if test "$PORTNAME" = "win32"; then
1790 AC_LIBOBJ(getopt_long)
1793 # Win32 (really MinGW) support
1794 if test "$PORTNAME" = "win32"; then
1795 AC_CHECK_FUNCS(_configthreadlocale)
1796 AC_REPLACE_FUNCS(gettimeofday)
1802 AC_LIBOBJ(win32error)
1803 AC_LIBOBJ(win32security)
1804 AC_LIBOBJ(win32setlocale)
1805 AC_DEFINE([HAVE_SYMLINK], 1,
1806 [Define to 1 if you have the `symlink' function.])
1807 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [
1808 #define WIN32_LEAN_AND_MEAN
1809 #include <windows.h>
1811 #include <dbghelp.h>])
1813 if test x"$pgac_minidump_type" = x"yes" ; then
1814 AC_SUBST(have_win32_dbghelp,yes)
1816 AC_SUBST(have_win32_dbghelp,no)
1819 # Cygwin needs only a bit of that
1820 if test "$PORTNAME" = "cygwin"; then
1824 AC_CHECK_FUNC(syslog,
1825 [AC_CHECK_HEADER(syslog.h,
1826 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])
1828 AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr,
1829 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1830 [extern int opterr; opterr = 1;])],
1831 [pgac_cv_var_int_opterr=yes],
1832 [pgac_cv_var_int_opterr=no])])
1833 if test x"$pgac_cv_var_int_opterr" = x"yes"; then
1834 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.])
1837 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
1838 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
1839 [extern int optreset; optreset = 1;])],
1840 [pgac_cv_var_int_optreset=yes],
1841 [pgac_cv_var_int_optreset=no])])
1842 if test x"$pgac_cv_var_int_optreset" = x"yes"; then
1843 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.])
1846 AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break])
1847 AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break])
1848 # strto[u]ll may exist but not be declared
1849 AC_CHECK_DECLS([strtoll, strtoull])
1851 if test "$with_icu" = yes; then
1852 ac_save_CPPFLAGS=$CPPFLAGS
1853 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS"
1855 # Verify we have ICU's header files
1856 AC_CHECK_HEADER(unicode/ucol.h, [],
1857 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])])
1859 CPPFLAGS=$ac_save_CPPFLAGS
1862 if test "$with_llvm" = yes; then
1863 PGAC_CHECK_LLVM_FUNCTIONS()
1866 # Lastly, restore full LIBS list and check for readline/libedit symbols
1867 LIBS="$LIBS_including_readline"
1869 if test "$with_readline" = yes; then
1870 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER
1871 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size])
1872 AC_CHECK_FUNCS([append_history history_truncate_file])
1876 # This test makes sure that run tests work at all. Sometimes a shared
1877 # library is found by the linker, but the runtime linker can't find it.
1878 # This check should come after all modifications of compiler or linker
1879 # variables, and before any other run tests.
1880 AC_MSG_CHECKING([test program])
1881 AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
1882 [AC_MSG_RESULT(ok)],
1883 [AC_MSG_RESULT(failed)
1885 Could not execute a simple test program. This may be a problem
1886 related to locating shared libraries. Check the file 'config.log'
1887 for the exact reason.]])],
1888 [AC_MSG_RESULT([cross-compiling])])
1890 # --------------------
1891 # Run tests below here
1892 # --------------------
1894 dnl Check to see if we have a working 64-bit integer type.
1895 dnl Since Postgres 8.4, we no longer support compilers without a working
1896 dnl 64-bit type; but we have to determine whether that type is called
1897 dnl "long int" or "long long int".
1899 PGAC_TYPE_64BIT_INT([long int])
1901 if test x"$HAVE_LONG_INT_64" = x"yes" ; then
1902 pg_int64_type="long int"
1904 PGAC_TYPE_64BIT_INT([long long int])
1905 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1906 pg_int64_type="long long int"
1908 AC_MSG_ERROR([Cannot find a working 64-bit integer type.])
1912 AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
1913 [Define to the name of a signed 64-bit integer type.])
1915 # Select the printf length modifier that goes with that, too.
1916 if test x"$pg_int64_type" = x"long long int" ; then
1917 INT64_MODIFIER='"ll"'
1919 INT64_MODIFIER='"l"'
1922 AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
1923 [Define to the appropriate printf length modifier for 64-bit ints.])
1925 # has to be down here, rather than with the other builtins, because
1926 # the test uses PG_INT64_TYPE.
1927 PGAC_C_BUILTIN_OP_OVERFLOW
1929 # Check size of void *, size_t (enables tweaks for > 32bit address space)
1930 AC_CHECK_SIZEOF([void *])
1931 AC_CHECK_SIZEOF([size_t])
1932 AC_CHECK_SIZEOF([long])
1934 # Decide whether float4 is passed by value: user-selectable, enabled by default
1935 AC_MSG_CHECKING([whether to build with float4 passed by value])
1936 PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value],
1937 [AC_DEFINE([USE_FLOAT4_BYVAL], 1,
1938 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)])
1939 float4passbyval=true],
1940 [float4passbyval=false])
1941 AC_MSG_RESULT([$enable_float4_byval])
1942 AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false'])
1944 # Decide whether float8 is passed by value.
1945 # Note: this setting also controls int8 and related types such as timestamp.
1946 # If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
1947 # If not, trying to select it is an error.
1948 AC_MSG_CHECKING([whether to build with float8 passed by value])
1949 if test $ac_cv_sizeof_void_p -ge 8 ; then
1950 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value])
1952 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value])
1953 if test "$enable_float8_byval" = yes ; then
1954 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.])
1957 if test "$enable_float8_byval" = yes ; then
1958 AC_DEFINE([USE_FLOAT8_BYVAL], 1,
1959 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)])
1960 float8passbyval=true
1962 float8passbyval=false
1964 AC_MSG_RESULT([$enable_float8_byval])
1965 AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false'])
1967 # Determine memory alignment requirements for the basic C data types.
1969 AC_CHECK_ALIGNOF(short)
1970 AC_CHECK_ALIGNOF(int)
1971 AC_CHECK_ALIGNOF(long)
1972 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then
1973 AC_CHECK_ALIGNOF(long long int)
1975 AC_CHECK_ALIGNOF(double)
1977 # Compute maximum alignment of any basic type.
1978 # We assume long's alignment is at least as strong as char, short, or int;
1979 # but we must check long long (if it is being used for int64) and double.
1980 # Note that we intentionally do not consider any types wider than 64 bits,
1981 # as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty
1982 # for disk and memory space.
1984 MAX_ALIGNOF=$ac_cv_alignof_long
1985 if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
1986 MAX_ALIGNOF=$ac_cv_alignof_double
1988 if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then
1989 MAX_ALIGNOF="$ac_cv_alignof_long_long_int"
1991 AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
1994 # Some platforms predefine the types int8, int16, etc. Only check
1995 # a (hopefully) representative subset.
1996 AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
1997 [#include <stdio.h>])
1999 # Some compilers offer a 128-bit integer scalar type.
2000 PGAC_TYPE_128BIT_INT
2002 # Check for various atomic operations now that we have checked how to declare
2004 PGAC_HAVE_GCC__SYNC_CHAR_TAS
2005 PGAC_HAVE_GCC__SYNC_INT32_TAS
2006 PGAC_HAVE_GCC__SYNC_INT32_CAS
2007 PGAC_HAVE_GCC__SYNC_INT64_CAS
2008 PGAC_HAVE_GCC__ATOMIC_INT32_CAS
2009 PGAC_HAVE_GCC__ATOMIC_INT64_CAS
2012 # Check for x86 cpuid instruction
2013 AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid],
2014 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>],
2015 [[unsigned int exx[4] = {0, 0, 0, 0};
2016 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
2018 [pgac_cv__get_cpuid="yes"],
2019 [pgac_cv__get_cpuid="no"])])
2020 if test x"$pgac_cv__get_cpuid" = x"yes"; then
2021 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.])
2024 AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid],
2025 [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>],
2026 [[unsigned int exx[4] = {0, 0, 0, 0};
2027 __get_cpuid(exx[0], 1);
2029 [pgac_cv__cpuid="yes"],
2030 [pgac_cv__cpuid="no"])])
2031 if test x"$pgac_cv__cpuid" = x"yes"; then
2032 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.])
2035 # Check for Intel SSE 4.2 intrinsics to do CRC calculations.
2037 # First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used
2038 # with the default compiler flags. If not, check if adding the -msse4.2
2039 # flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required.
2040 PGAC_SSE42_CRC32_INTRINSICS([])
2041 if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then
2042 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2])
2044 AC_SUBST(CFLAGS_SSE42)
2046 # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all
2047 # define __SSE4_2__ in that case.
2048 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
2050 #error __SSE4_2__ not defined
2052 ])], [SSE4_2_TARGETED=1])
2054 # Check for ARMv8 CRC Extension intrinsics to do CRC calculations.
2056 # First check if __crc32c* intrinsics can be used with the default compiler
2057 # flags. If not, check if adding -march=armv8-a+crc flag helps.
2058 # CFLAGS_ARMV8_CRC32C is set if the extra flag is required.
2059 PGAC_ARMV8_CRC32C_INTRINSICS([])
2060 if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then
2061 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc])
2063 AC_SUBST(CFLAGS_ARMV8_CRC32C)
2065 # Select CRC-32C implementation.
2067 # If we are targeting a processor that has Intel SSE 4.2 instructions, we can
2068 # use the special CRC instructions for calculating CRC-32C. If we're not
2069 # targeting such a processor, but we can nevertheless produce code that uses
2070 # the SSE intrinsics, perhaps with some extra CFLAGS, compile both
2071 # implementations and select which one to use at runtime, depending on whether
2072 # SSE 4.2 is supported by the processor we're running on.
2074 # Similarly, if we are targeting an ARM processor that has the CRC
2075 # instructions that are part of the ARMv8 CRC Extension, use them. And if
2076 # we're not targeting such a processor, but can nevertheless produce code that
2077 # uses the CRC instructions, compile both, and select at runtime.
2079 # You can override this logic by setting the appropriate USE_*_CRC32 flag to 1
2080 # in the template or configure command line.
2081 if test x"$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
2082 # Use Intel SSE 4.2 if available.
2083 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then
2086 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for
2087 # the runtime check.
2088 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then
2089 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1
2091 # Use ARM CRC Extension if available.
2092 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then
2095 # ARM CRC Extension, with runtime check?
2096 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then
2097 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1
2099 # fall back to slicing-by-8 algorithm, which doesn't require any
2100 # special CPU support.
2101 USE_SLICING_BY_8_CRC32C=1
2108 # Set PG_CRC32C_OBJS appropriately depending on the selected implementation.
2109 AC_MSG_CHECKING([which CRC-32C implementation to use])
2110 if test x"$USE_SSE42_CRC32C" = x"1"; then
2111 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.])
2112 PG_CRC32C_OBJS="pg_crc32c_sse42.o"
2113 AC_MSG_RESULT(SSE 4.2)
2115 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2116 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.])
2117 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o"
2118 AC_MSG_RESULT(SSE 4.2 with runtime check)
2120 if test x"$USE_ARMV8_CRC32C" = x"1"; then
2121 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.])
2122 PG_CRC32C_OBJS="pg_crc32c_armv8.o"
2123 AC_MSG_RESULT(ARMv8 CRC instructions)
2125 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then
2126 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.])
2127 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o"
2128 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check)
2130 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).])
2131 PG_CRC32C_OBJS="pg_crc32c_sb8.o"
2132 AC_MSG_RESULT(slicing-by-8)
2137 AC_SUBST(PG_CRC32C_OBJS)
2140 # Select semaphore implementation type.
2141 if test "$PORTNAME" != "win32"; then
2142 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then
2143 # Need sem_open for this
2144 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1])
2146 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then
2147 # Need sem_init for this
2148 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1])
2150 AC_MSG_CHECKING([which semaphore API to use])
2151 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then
2152 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.])
2153 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2154 sematype="named POSIX"
2156 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then
2157 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.])
2158 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c"
2159 sematype="unnamed POSIX"
2161 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.])
2162 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c"
2166 AC_MSG_RESULT([$sematype])
2168 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.])
2169 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c"
2173 # Select shared-memory implementation type.
2174 if test "$PORTNAME" != "win32"; then
2175 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.])
2176 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c"
2178 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.])
2179 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c"
2182 # Select random number source
2184 # You can override this logic by setting the appropriate USE_*RANDOM flag to 1
2185 # in the template or configure command line.
2187 # If not selected manually, try to select a source automatically.
2188 if test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then
2189 if test x"$with_openssl" = x"yes" ; then
2190 USE_OPENSSL_RANDOM=1
2191 elif test "$PORTNAME" = "win32" ; then
2194 AC_CHECK_FILE([/dev/urandom], [], [])
2196 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then
2202 AC_MSG_CHECKING([which random number source to use])
2203 if test x"$USE_OPENSSL_RANDOM" = x"1" ; then
2204 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation])
2205 AC_MSG_RESULT([OpenSSL])
2206 elif test x"$USE_WIN32_RANDOM" = x"1" ; then
2207 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation])
2208 AC_MSG_RESULT([Windows native])
2209 elif test x"$USE_DEV_URANDOM" = x"1" ; then
2210 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation])
2211 AC_MSG_RESULT([/dev/urandom])
2214 no source of strong random numbers was found
2215 PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers.])
2218 # If not set in template file, set bytes to use libc memset()
2219 if test x"$MEMSET_LOOP_LIMIT" = x"" ; then
2220 MEMSET_LOOP_LIMIT=1024
2222 AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().])
2225 if test "$enable_nls" = yes ; then
2229 # Check for Tcl configuration script tclConfig.sh
2230 if test "$with_tcl" = yes; then
2231 PGAC_PATH_TCLCONFIGSH([$with_tclconfig])
2232 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH],
2233 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD])
2234 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one
2235 if test "$TCL_SHARED_BUILD" != 1; then
2236 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library
2237 Use --without-tcl to disable building PL/Tcl.])
2239 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h>
2240 ac_save_CPPFLAGS=$CPPFLAGS
2241 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS"
2242 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])])
2243 CPPFLAGS=$ac_save_CPPFLAGS
2246 # check for <perl.h>
2247 if test "$with_perl" = yes; then
2248 ac_save_CPPFLAGS=$CPPFLAGS
2249 CPPFLAGS="$CPPFLAGS $perl_includespec"
2250 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])],
2251 [#include <EXTERN.h>])
2252 # While we're at it, check that we can link to libperl.
2253 # On most platforms, if perl.h is there then libperl.so will be too, but at
2254 # this writing Debian packages them separately. There is no known reason to
2255 # waste cycles on separate probes for the Tcl or Python libraries, though.
2256 # On some Red Hat platforms, the link attempt can fail if we don't use
2257 # CFLAGS_SL while building the test program.
2258 ac_save_CFLAGS=$CFLAGS
2259 CFLAGS="$CFLAGS $CFLAGS_SL"
2260 pgac_save_LIBS=$LIBS
2261 LIBS="$perl_embed_ldflags"
2262 AC_MSG_CHECKING([for libperl])
2263 AC_LINK_IFELSE([AC_LANG_PROGRAM([
2266 ], [perl_alloc();])],
2267 [AC_MSG_RESULT(yes)],
2269 AC_MSG_ERROR([libperl library is required for Perl])])
2270 LIBS=$pgac_save_LIBS
2271 CFLAGS=$ac_save_CFLAGS
2272 CPPFLAGS=$ac_save_CPPFLAGS
2275 # check for <Python.h>
2276 if test "$with_python" = yes; then
2277 ac_save_CPPFLAGS=$CPPFLAGS
2278 CPPFLAGS="$python_includespec $CPPFLAGS"
2279 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])])
2280 CPPFLAGS=$ac_save_CPPFLAGS
2284 # Check for DocBook and tools
2287 PGAC_CHECK_DOCBOOK(4.5)
2288 PGAC_PATH_PROGS(DBTOEPUB, dbtoepub)
2289 PGAC_PATH_PROGS(XSLTPROC, xsltproc)
2290 PGAC_PATH_PROGS(FOP, fop)
2293 # Check for test tools
2295 if test "$enable_tap_tests" = yes; then
2296 # Check for necessary modules, unless user has specified the "prove" to use;
2297 # in that case it's her responsibility to have a working configuration.
2298 # (prove might be part of a different Perl installation than perl, eg on
2299 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.)
2300 if test -z "$PROVE"; then
2301 # Test::More and Time::HiRes are supposed to be part of core Perl,
2302 # but some distros omit them in a minimal installation.
2303 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], ,
2304 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])])
2306 # Now make sure we know where prove is
2307 PGAC_PATH_PROGS(PROVE, prove)
2308 if test -z "$PROVE"; then
2309 AC_MSG_ERROR([prove not found])
2315 # We have to run the thread test near the end so we have all our symbols
2316 # defined. Cross compiling throws a warning.
2318 if test "$enable_thread_safety" = yes; then
2319 if test "$PORTNAME" != "win32"
2321 AC_MSG_CHECKING([thread safety of required library functions])
2325 CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE"
2326 LIBS="$LIBS $PTHREAD_LIBS"
2328 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])],
2329 [AC_MSG_RESULT(yes)],
2331 AC_MSG_ERROR([thread test program failed
2332 This platform is not thread-safe. Check the file 'config.log' or compile
2333 and run src/test/thread/thread_test for the exact reason.
2334 Use --disable-thread-safety to disable thread safety.])],
2335 [AC_MSG_RESULT(maybe)
2337 *** Skipping thread test program because of cross-compile build.
2338 *** Run the program in src/test/thread on the target machine.
2343 AC_MSG_WARN([*** skipping thread test on Win32])
2347 # If compiler will take -Wl,--as-needed (or various platform-specific
2348 # spellings thereof) then add that to LDFLAGS. This is much easier than
2349 # trying to filter LIBS to the minimum for each executable.
2350 # On (at least) some Red-Hat-derived systems, this switch breaks linking to
2351 # libreadline; therefore we postpone testing it until we know what library
2352 # dependencies readline has. The test code will try to link with $LIBS.
2353 if test "$with_readline" = yes; then
2354 link_test_func=readline
2359 if test "$PORTNAME" = "darwin"; then
2360 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func)
2361 elif test "$PORTNAME" = "openbsd"; then
2362 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func)
2364 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
2367 # Create compiler version string
2368 if test x"$GCC" = x"yes" ; then
2369 cc_string=`${CC} --version | sed q`
2370 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac
2371 elif test x"$SUN_STUDIO_CC" = x"yes" ; then
2372 cc_string=`${CC} -V 2>&1 | sed q`
2377 AC_DEFINE_UNQUOTED(PG_VERSION_STR,
2378 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"],
2379 [A string containing the version number, platform, and C compiler])
2381 # Supply a numeric version string for use by 3rd party add-ons
2382 # awk -F is a regex on some platforms, and not on others, so make "." a tab
2383 [PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' |
2385 $AWK '{printf "%d%04d", $1, $2}'`"]
2386 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
2387 AC_SUBST(PG_VERSION_NUM)
2389 # If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not
2390 # literally, so that it's possible to override it at build time using
2391 # a command like "make ... PG_SYSROOT=path". This has to be done after
2392 # we've finished all configure checks that depend on CPPFLAGS.
2393 if test x"$PG_SYSROOT" != x; then
2394 CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"`
2396 AC_SUBST(PG_SYSROOT)
2399 # Begin output steps
2401 AC_MSG_NOTICE([using compiler=$cc_string])
2402 AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
2403 AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
2404 AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
2405 # Currently only used when LLVM is used
2406 if test "$with_llvm" = yes ; then
2407 AC_MSG_NOTICE([using CXX=$CXX])
2408 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS])
2409 AC_MSG_NOTICE([using CLANG=$CLANG])
2410 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS])
2411 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS])
2414 # prepare build tree if outside source tree
2415 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
2416 # Note 2: /bin/pwd might be better than shell's built-in at getting
2417 # a symlink-free name.
2418 if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then
2422 if test "$no_create" != yes; then
2423 _AS_ECHO_N([preparing build tree... ])
2424 pgac_abs_top_srcdir=`cd "$srcdir" && pwd`
2425 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \
2426 || AC_MSG_ERROR(failed)
2430 AC_SUBST(vpath_build)
2433 AC_CONFIG_FILES([GNUmakefile src/Makefile.global])
2436 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION}
2437 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION}
2438 src/include/pg_config_os.h:src/include/port/${template}.h
2439 src/Makefile.port:src/makefiles/Makefile.${template}
2442 if test "$PORTNAME" = "win32"; then
2443 AC_CONFIG_COMMANDS([check_win32_symlinks],[
2444 # Links sometimes fail undetected on Mingw -
2445 # so here we detect it and warn the user
2446 for FILE in $CONFIG_LINKS
2448 # test -e works for symlinks in the MinGW console
2449 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand])
2454 AC_CONFIG_HEADERS([src/include/pg_config.h],
2456 # Update timestamp for pg_config.h (see Makefile.global)
2457 echo >src/include/stamp-h
2460 AC_CONFIG_HEADERS([src/include/pg_config_ext.h],
2462 # Update timestamp for pg_config_ext.h (see Makefile.global)
2463 echo >src/include/stamp-ext-h
2466 AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
2467 [echo >src/interfaces/ecpg/include/stamp-h])