1dnl Process this file with autoconf to produce a configure script. 2dnl configure.in 3dnl 4dnl Developers, please strive to achieve this order: 5dnl 6dnl 0. Initialization and options processing 7dnl 1. Programs 8dnl 2. Libraries 9dnl 3. Header files 10dnl 4. Types 11dnl 5. Structures 12dnl 6. Compiler characteristics 13dnl 7. Functions, global variables 14dnl 8. System services 15dnl 16dnl Read the Autoconf manual for details. 17dnl 18m4_pattern_forbid(^PGAC_)dnl to catch undefined macros 19 20AC_INIT([PostgreSQL], [12.9], [pgsql-bugs@lists.postgresql.org]) 21 22m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required. 23Untested combinations of 'autoconf' and PostgreSQL versions are not 24recommended. You can remove the check from 'configure.in' but it is then 25your responsibility whether the result works or not.])]) 26AC_COPYRIGHT([Copyright (c) 1996-2019, PostgreSQL Global Development Group]) 27AC_CONFIG_SRCDIR([src/backend/access/common/heaptuple.c]) 28AC_CONFIG_AUX_DIR(config) 29AC_PREFIX_DEFAULT(/usr/local/pgsql) 30AC_SUBST(configure_args, [$ac_configure_args]) 31 32[PG_MAJORVERSION=`expr "$PACKAGE_VERSION" : '\([0-9][0-9]*\)'`] 33AC_SUBST(PG_MAJORVERSION) 34AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major version as a string]) 35 36PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version], 37 [PG_VERSION="$PACKAGE_VERSION$withval"], 38 [PG_VERSION="$PACKAGE_VERSION"]) 39AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string]) 40 41AC_CANONICAL_HOST 42 43template= 44AC_MSG_CHECKING([which template to use]) 45 46PGAC_ARG_REQ(with, template, [NAME], [override operating system template], 47[ 48 case $withval in 49 list) echo; ls "$srcdir/src/template"; exit;; 50 *) if test -f "$srcdir/src/template/$with_template" ; then 51 template=$withval 52 else 53 AC_MSG_ERROR(['$withval' is not a valid template name. Use 'list' for a list.]) 54 fi;; 55 esac 56], 57[ 58# --with-template not given 59 60case $host_os in 61 aix*) template=aix ;; 62 cygwin*) template=cygwin ;; 63 darwin*) template=darwin ;; 64dragonfly*) template=netbsd ;; 65 freebsd*) template=freebsd ;; 66 hpux*) template=hpux ;; 67 linux*|gnu*|k*bsd*-gnu) 68 template=linux ;; 69 mingw*) template=win32 ;; 70 netbsd*) template=netbsd ;; 71 openbsd*) template=openbsd ;; 72 solaris*) template=solaris ;; 73esac 74 75 if test x"$template" = x"" ; then 76 AC_MSG_ERROR([[ 77******************************************************************* 78PostgreSQL has apparently not been ported to your platform yet. 79To try a manual configuration, look into the src/template directory 80for a similar platform and use the '--with-template=' option. 81 82Please also contact <pgsql-bugs@lists.postgresql.org> to see about 83rectifying this. Include the above 'checking host system type...' 84line. 85******************************************************************* 86]]) 87 fi 88 89]) 90 91AC_MSG_RESULT([$template]) 92 93PORTNAME=$template 94AC_SUBST(PORTNAME) 95 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 98# when it's executed. 99need_tas=no 100tas_file=dummy.s 101 102 103 104## 105## Command line options 106## 107 108# 109# Add non-standard directories to the include path 110# 111PGAC_ARG_REQ(with, includes, [DIRS], [look for additional header files in DIRS]) 112 113 114# 115# Add non-standard directories to the library search path 116# 117PGAC_ARG_REQ(with, libraries, [DIRS], [look for additional libraries in DIRS], 118 [LIBRARY_DIRS=$withval]) 119 120PGAC_ARG_REQ(with, libs, [DIRS], [alternative spelling of --with-libraries], 121 [LIBRARY_DIRS=$withval]) 122 123 124# 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. 128# 129PGAC_ARG_BOOL(enable, integer-datetimes, yes, [obsolete option, no longer supported], 130 [], 131 [AC_MSG_ERROR([--disable-integer-datetimes is no longer supported])]) 132 133 134# 135# NLS 136# 137AC_MSG_CHECKING([whether NLS is wanted]) 138PGAC_ARG_OPTARG(enable, nls, 139 [LANGUAGES], [enable Native Language Support], 140 [], 141 [WANTED_LANGUAGES=$enableval], 142 [AC_DEFINE(ENABLE_NLS, 1, 143 [Define to 1 if you want National Language Support. (--enable-nls)])]) 144AC_MSG_RESULT([$enable_nls]) 145AC_SUBST(enable_nls) 146AC_SUBST(WANTED_LANGUAGES) 147 148# 149# Default port number (--with-pgport), default 5432 150# 151AC_MSG_CHECKING([for default port number]) 152PGAC_ARG_REQ(with, pgport, [PORTNUM], [set default port number [5432]], 153 [default_port=$withval], 154 [default_port=5432]) 155AC_MSG_RESULT([$default_port]) 156# Need both of these because some places want an integer and some a string 157AC_DEFINE_UNQUOTED(DEF_PGPORT, ${default_port}, 158[Define to the default TCP port number on which the server listens and 159to which clients will try to connect. This can be overridden at run-time, 160but it's convenient if your clients have the right default compiled in. 161(--with-pgport=PORTNUM)]) 162AC_DEFINE_UNQUOTED(DEF_PGPORT_STR, "${default_port}", 163 [Define to the default TCP port number as a string constant.]) 164AC_SUBST(default_port) 165 166# It's worth validating port; you can get very confusing errors otherwise 167if test x"$default_port" = x""; then 168 AC_MSG_ERROR([invalid --with-pgport specification: empty string]) 169elif test ! x`echo "$default_port" | sed -e 's/[[0-9]]*//'` = x""; then 170 AC_MSG_ERROR([invalid --with-pgport specification: must be a number]) 171elif 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]) 173elif 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]) 175fi 176 177# 178# '-rpath'-like feature can be disabled 179# 180PGAC_ARG_BOOL(enable, rpath, yes, 181 [do not embed shared library search path in executables]) 182AC_SUBST(enable_rpath) 183 184# 185# Spinlocks 186# 187PGAC_ARG_BOOL(enable, spinlocks, yes, 188 [do not use spinlocks]) 189 190# 191# Atomic operations 192# 193PGAC_ARG_BOOL(enable, atomics, yes, 194 [do not use atomic operations]) 195 196# 197# --enable-debug adds -g to compiler flags 198# 199PGAC_ARG_BOOL(enable, debug, no, 200 [build with debugging symbols (-g)]) 201AC_SUBST(enable_debug) 202 203# 204# --enable-profiling enables gcc profiling 205# 206PGAC_ARG_BOOL(enable, profiling, no, 207 [build with profiling enabled ]) 208 209# 210# --enable-coverage enables generation of code coverage metrics with gcov 211# 212PGAC_ARG_BOOL(enable, coverage, no, 213 [build with coverage testing instrumentation], 214[PGAC_PATH_PROGS(GCOV, gcov) 215if test -z "$GCOV"; then 216 AC_MSG_ERROR([gcov not found]) 217fi 218PGAC_PATH_PROGS(LCOV, lcov) 219if test -z "$LCOV"; then 220 AC_MSG_ERROR([lcov not found]) 221fi 222PGAC_PATH_PROGS(GENHTML, genhtml) 223if test -z "$GENHTML"; then 224 AC_MSG_ERROR([genhtml not found]) 225fi]) 226AC_SUBST(enable_coverage) 227 228# 229# DTrace 230# 231PGAC_ARG_BOOL(enable, dtrace, no, 232 [build with DTrace support], 233[PGAC_PATH_PROGS(DTRACE, dtrace) 234if test -z "$DTRACE"; then 235 AC_MSG_ERROR([dtrace not found]) 236fi 237AC_SUBST(DTRACEFLAGS)]) 238AC_SUBST(enable_dtrace) 239 240# 241# TAP tests 242# 243PGAC_ARG_BOOL(enable, tap-tests, no, 244 [enable TAP tests (requires Perl and IPC::Run)]) 245AC_SUBST(enable_tap_tests) 246 247# 248# Block size 249# 250AC_MSG_CHECKING([for block size]) 251PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]], 252 [blocksize=$withval], 253 [blocksize=8]) 254case ${blocksize} in 255 1) BLCKSZ=1024;; 256 2) BLCKSZ=2048;; 257 4) BLCKSZ=4096;; 258 8) BLCKSZ=8192;; 259 16) BLCKSZ=16384;; 260 32) BLCKSZ=32768;; 261 *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.]) 262esac 263AC_MSG_RESULT([${blocksize}kB]) 264 265AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [ 266 Size of a disk block --- this also limits the size of a tuple. You 267 can set it bigger if you need bigger tuples (although TOAST should 268 reduce the need to have large tuples, since fields can be spread 269 across multiple tuples). 270 271 BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ 272 is currently 2^15 (32768). This is determined by the 15-bit widths 273 of the lp_off and lp_len fields in ItemIdData (see 274 include/storage/itemid.h). 275 276 Changing BLCKSZ requires an initdb. 277]) 278 279# 280# Relation segment size 281# 282AC_MSG_CHECKING([for segment size]) 283PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]], 284 [segsize=$withval], 285 [segsize=1]) 286# this expression is set up to avoid unnecessary integer overflow 287# blocksize is already guaranteed to be a factor of 1024 288RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024` 289test $? -eq 0 || exit 1 290AC_MSG_RESULT([${segsize}GB]) 291 292AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [ 293 RELSEG_SIZE is the maximum number of blocks allowed in one disk file. 294 Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ; 295 relations bigger than that are divided into multiple files. 296 297 RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size. 298 This is often 2 GB or 4GB in a 32-bit operating system, unless you 299 have large file support enabled. By default, we make the limit 1 GB 300 to avoid any possible integer-overflow problems within the OS. 301 A limit smaller than necessary only means we divide a large 302 relation into more chunks than necessary, so it seems best to err 303 in the direction of a small limit. 304 305 A power-of-2 value is recommended to save a few cycles in md.c, 306 but is not absolutely required. 307 308 Changing RELSEG_SIZE requires an initdb. 309]) 310 311# 312# WAL block size 313# 314AC_MSG_CHECKING([for WAL block size]) 315PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]], 316 [wal_blocksize=$withval], 317 [wal_blocksize=8]) 318case ${wal_blocksize} in 319 1) XLOG_BLCKSZ=1024;; 320 2) XLOG_BLCKSZ=2048;; 321 4) XLOG_BLCKSZ=4096;; 322 8) XLOG_BLCKSZ=8192;; 323 16) XLOG_BLCKSZ=16384;; 324 32) XLOG_BLCKSZ=32768;; 325 64) XLOG_BLCKSZ=65536;; 326 *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.]) 327esac 328AC_MSG_RESULT([${wal_blocksize}kB]) 329 330AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [ 331 Size of a WAL file block. This need have no particular relation to BLCKSZ. 332 XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O, 333 XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O 334 buffers, else direct I/O may fail. 335 336 Changing XLOG_BLCKSZ requires an initdb. 337]) 338 339# 340# C compiler 341# 342 343# For historical reasons you can also use --with-CC to specify the C compiler 344# to use, although the standard way to do this is to set the CC environment 345# variable. 346PGAC_ARG_REQ(with, CC, [CMD], [set compiler (deprecated)], [CC=$with_CC]) 347 348case $template in 349 aix) pgac_cc_list="gcc xlc"; pgac_cxx_list="g++ xlC";; 350 *) pgac_cc_list="gcc cc"; pgac_cxx_list="g++ c++";; 351esac 352 353AC_PROG_CC([$pgac_cc_list]) 354AC_PROG_CC_C99() 355 356# Error out if the compiler does not support C99, as the codebase 357# relies on that. 358if test "$ac_cv_prog_cc_c99" = no; then 359 AC_MSG_ERROR([C compiler "$CC" does not support C99]) 360fi 361 362AC_PROG_CXX([$pgac_cxx_list]) 363 364# Check if it's Intel's compiler, which (usually) pretends to be gcc, 365# but has idiosyncrasies of its own. We assume icc will define 366# __INTEL_COMPILER regardless of CFLAGS. 367AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER 368choke me 369@%:@endif])], [ICC=yes], [ICC=no]) 370 371# Check if it's Sun Studio compiler. We assume that 372# __SUNPRO_C will be defined for Sun Studio compilers 373AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __SUNPRO_C 374choke me 375@%:@endif])], [SUN_STUDIO_CC=yes], [SUN_STUDIO_CC=no]) 376 377AC_SUBST(SUN_STUDIO_CC) 378 379 380# 381# LLVM 382# 383# Checked early because subsequent tests depend on it. 384PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support], 385 [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])]) 386AC_SUBST(with_llvm) 387dnl must use AS_IF here, else AC_REQUIRES inside PGAC_LLVM_SUPPORT malfunctions 388AS_IF([test "$with_llvm" = yes], [ 389 PGAC_LLVM_SUPPORT() 390]) # fi 391 392 393unset CFLAGS 394unset CXXFLAGS 395 396# 397# Read the template 398# 399. "$srcdir/src/template/$template" || exit 400 401# 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. 407 408if test "$ac_env_CFLAGS_set" = set; then 409 CFLAGS=$ac_env_CFLAGS_value 410elif test "${CFLAGS+set}" = set; then 411 : # (keep what template set) 412elif test "$enable_coverage" = yes; then 413 : # no optimization by default 414elif test "$GCC" = yes; then 415 CFLAGS="-O2" 416else 417 # if the user selected debug mode, don't use -O 418 if test "$enable_debug" != yes; then 419 CFLAGS="-O" 420 fi 421fi 422 423if test "$ac_env_CXXFLAGS_set" = set; then 424 CXXFLAGS=$ac_env_CXXFLAGS_value 425elif test "${CXXFLAGS+set}" = set; then 426 : # (keep what template set) 427elif test "$enable_coverage" = yes; then 428 : # no optimization by default 429elif test "$GCC" = yes; then 430 CXXFLAGS="-O2" 431else 432 # if the user selected debug mode, don't use -O 433 if test "$enable_debug" != yes; then 434 CXXFLAGS="-O" 435 fi 436fi 437 438# 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. 444if test "$ac_env_BITCODE_CFLAGS_set" = set; then 445 BITCODE_CFLAGS=$ac_env_BITCODE_CFLAGS_value 446else 447 BITCODE_CFLAGS="-O2 $BITCODE_CFLAGS" 448fi 449if test "$ac_env_BITCODE_CXXFLAGS_set" = set; then 450 BITCODE_CXXFLAGS=$ac_env_BITCODE_CXXFLAGS_value 451else 452 BITCODE_CXXFLAGS="-O2 $BITCODE_CXXFLAGS" 453fi 454 455# C[XX]FLAGS we determined above will be added back at the end 456user_CFLAGS=$CFLAGS 457CFLAGS="" 458user_CXXFLAGS=$CXXFLAGS 459CXXFLAGS="" 460user_BITCODE_CFLAGS=$BITCODE_CFLAGS 461BITCODE_CFLAGS="" 462user_BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS 463BITCODE_CXXFLAGS="" 464 465# set CFLAGS_VECTOR from the environment, if available 466if test "$ac_env_CFLAGS_VECTOR_set" = set; then 467 CFLAGS_VECTOR=$ac_env_CFLAGS_VECTOR_value 468fi 469 470# Some versions of GCC support some additional useful warning flags. 471# Check whether they are supported, and add them to CFLAGS if so. 472# ICC pretends to be GCC but it's lying; it doesn't support these flags, 473# but has its own. Also check other compiler-specific flags here. 474 475if test "$GCC" = yes -a "$ICC" = no; then 476 CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith" 477 CXXFLAGS="-Wall -Wpointer-arith" 478 # These work in some but not all gcc versions 479 save_CFLAGS=$CFLAGS 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 486 fi 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 513 NOT_THE_CFLAGS="" 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" 517 fi 518 # Similarly disable useless truncation warnings from gcc 8+ 519 NOT_THE_CFLAGS="" 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" 523 fi 524 NOT_THE_CFLAGS="" 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" 528 fi 529elif test "$ICC" = yes; then 530 # Intel's compiler has a bug/misoptimization in checking for 531 # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS. 532 PGAC_PROG_CC_CFLAGS_OPT([-mp1]) 533 PGAC_PROG_CXX_CFLAGS_OPT([-mp1]) 534 # Make sure strict aliasing is off (though this is said to be the default) 535 PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing]) 536 PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing]) 537elif test "$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]) 543elif test "$PORTNAME" = "hpux"; then 544 # On some versions of HP-UX, libm functions do not set errno by default. 545 # Fix that by using +Olibmerrno if the compiler recognizes it. 546 PGAC_PROG_CC_CFLAGS_OPT([+Olibmerrno]) 547 PGAC_PROG_CXX_CFLAGS_OPT([+Olibmerrno]) 548fi 549 550AC_SUBST(CFLAGS_VECTOR) 551 552# Determine flags used to emit bitcode for JIT inlining. Need to test 553# for behaviour changing compiler flags, to keep compatibility with 554# compiler used for normal postgres code. 555if test "$with_llvm" = yes ; then 556 CLANGXX="$CLANG -xc++" 557 558 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing]) 559 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing]) 560 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv]) 561 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv]) 562 PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard]) 563 PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard]) 564fi 565 566# supply -g if --enable-debug 567if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then 568 CFLAGS="$CFLAGS -g" 569fi 570 571if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then 572 CXXFLAGS="$CXXFLAGS -g" 573fi 574 575# enable code coverage if --enable-coverage 576if test "$enable_coverage" = yes; then 577 if test "$GCC" = yes; then 578 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage" 579 CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage" 580 else 581 AC_MSG_ERROR([--enable-coverage is supported only when using GCC]) 582 fi 583fi 584 585# enable profiling if --enable-profiling 586if test "$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 $PLATFORM_PROFILE_FLAGS" 592 else 593 AC_MSG_ERROR([--enable-profiling is supported only when using GCC]) 594 fi 595fi 596 597# We already have this in Makefile.win32, but configure needs it too 598if test "$PORTNAME" = "win32"; then 599 CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND" 600fi 601 602# 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. 605CFLAGS="$CFLAGS $user_CFLAGS" 606CXXFLAGS="$CXXFLAGS $user_CXXFLAGS" 607BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS" 608BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS" 609 610AC_SUBST(BITCODE_CFLAGS) 611AC_SUBST(BITCODE_CXXFLAGS) 612 613# The template file must set up CFLAGS_SL; we don't support user override 614AC_SUBST(CFLAGS_SL) 615 616# Check if the compiler still works with the final flag settings 617# (note, we're not checking that for CXX, which is optional) 618AC_MSG_CHECKING([whether the C compiler still works]) 619AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])], 620 [AC_MSG_RESULT(yes)], 621 [AC_MSG_RESULT(no) 622 AC_MSG_ERROR([cannot proceed])]) 623 624# Defend against gcc -ffast-math 625if test "$GCC" = yes; then 626AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifdef __FAST_MATH__ 627choke me 628@%:@endif])], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])]) 629fi 630 631# 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. 636# 637# Only perform the test if the compiler doesn't understand 638# -fexcess-precision=standard, that way a potentially fixed compiler will work 639# automatically. 640if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then 641AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ 642@%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__) 643choke me 644@%:@endif 645])], [], 646[AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])]) 647fi 648 649AC_PROG_CPP 650AC_SUBST(GCC) 651 652 653# 654# Set up TAS assembly code if needed; the template file has now had its 655# chance to request this. 656# 657AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}]) 658 659if test "$need_tas" = yes ; then 660 TAS=tas.o 661else 662 TAS="" 663fi 664AC_SUBST(TAS) 665 666# 667# Set up pkg_config in case we need it below 668# 669PKG_PROG_PKG_CONFIG 670 671# 672# Automatic dependency tracking 673# 674PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking], 675 [autodepend=yes]) 676AC_SUBST(autodepend) 677 678 679# 680# Enable assert checks 681# 682PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)], 683 [AC_DEFINE([USE_ASSERT_CHECKING], 1, 684 [Define to 1 to build with assertion checks. (--enable-cassert)])]) 685 686 687# 688# Include directories 689# 690ac_save_IFS=$IFS 691IFS="${IFS}${PATH_SEPARATOR}" 692# SRCH_INC comes from the template file 693for dir in $with_includes $SRCH_INC; do 694 if test -d "$dir"; then 695 INCLUDES="$INCLUDES -I$dir" 696 else 697 AC_MSG_WARN([*** Include directory $dir does not exist.]) 698 fi 699done 700IFS=$ac_save_IFS 701AC_SUBST(INCLUDES) 702 703 704# 705# Library directories 706# 707ac_save_IFS=$IFS 708IFS="${IFS}${PATH_SEPARATOR}" 709# LIBRARY_DIRS comes from command line, SRCH_LIB from template file. 710for dir in $LIBRARY_DIRS $SRCH_LIB; do 711 if test -d "$dir"; then 712 LIBDIRS="$LIBDIRS -L$dir" 713 else 714 AC_MSG_WARN([*** Library directory $dir does not exist.]) 715 fi 716done 717IFS=$ac_save_IFS 718 719# 720# Enable thread-safe client libraries 721# 722AC_MSG_CHECKING([allow thread-safe client libraries]) 723PGAC_ARG_BOOL(enable, thread-safety, yes, [disable thread-safety in client libraries]) 724if test "$enable_thread_safety" = yes; then 725 AC_DEFINE([ENABLE_THREAD_SAFETY], 1, 726 [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)]) 727fi 728AC_MSG_RESULT([$enable_thread_safety]) 729AC_SUBST(enable_thread_safety) 730 731# 732# ICU 733# 734AC_MSG_CHECKING([whether to build with ICU support]) 735PGAC_ARG_BOOL(with, icu, no, [build with ICU support], 736 [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])]) 737AC_MSG_RESULT([$with_icu]) 738AC_SUBST(with_icu) 739 740if test "$with_icu" = yes; then 741 PKG_CHECK_MODULES(ICU, icu-uc icu-i18n) 742fi 743 744# 745# Optionally build Tcl modules (PL/Tcl) 746# 747AC_MSG_CHECKING([whether to build with Tcl]) 748PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)]) 749AC_MSG_RESULT([$with_tcl]) 750AC_SUBST([with_tcl]) 751 752# We see if the path to the Tcl/Tk configuration scripts is specified. 753# This will override the use of tclsh to find the paths to search. 754 755PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR]) 756 757# 758# Optionally build Perl modules (PL/Perl) 759# 760AC_MSG_CHECKING([whether to build Perl modules]) 761PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)]) 762AC_MSG_RESULT([$with_perl]) 763AC_SUBST(with_perl) 764 765# 766# Optionally build Python modules (PL/Python) 767# 768AC_MSG_CHECKING([whether to build Python modules]) 769PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)]) 770AC_MSG_RESULT([$with_python]) 771AC_SUBST(with_python) 772 773# 774# GSSAPI 775# 776AC_MSG_CHECKING([whether to build with GSSAPI support]) 777PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support], 778[ 779 AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)]) 780 krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab" 781]) 782AC_MSG_RESULT([$with_gssapi]) 783AC_SUBST(with_gssapi) 784 785 786AC_SUBST(krb_srvtab) 787 788 789# 790# Kerberos configuration parameters 791# 792PGAC_ARG_REQ(with, krb-srvnam, 793 [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]], 794 [], 795 [with_krb_srvnam="postgres"]) 796AC_SUBST(with_krb_srvnam) 797AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"], 798 [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)]) 799 800 801# 802# PAM 803# 804AC_MSG_CHECKING([whether to build with PAM support]) 805PGAC_ARG_BOOL(with, pam, no, 806 [build with PAM support], 807 [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])]) 808AC_MSG_RESULT([$with_pam]) 809 810 811# 812# BSD AUTH 813# 814AC_MSG_CHECKING([whether to build with BSD Authentication support]) 815PGAC_ARG_BOOL(with, bsd-auth, no, 816 [build with BSD Authentication support], 817 [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])]) 818AC_MSG_RESULT([$with_bsd_auth]) 819 820 821# 822# LDAP 823# 824AC_MSG_CHECKING([whether to build with LDAP support]) 825PGAC_ARG_BOOL(with, ldap, no, 826 [build with LDAP support], 827 [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])]) 828AC_MSG_RESULT([$with_ldap]) 829AC_SUBST(with_ldap) 830 831 832# 833# Bonjour 834# 835AC_MSG_CHECKING([whether to build with Bonjour support]) 836PGAC_ARG_BOOL(with, bonjour, no, 837 [build with Bonjour support], 838 [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])]) 839AC_MSG_RESULT([$with_bonjour]) 840 841 842# 843# OpenSSL 844# 845AC_MSG_CHECKING([whether to build with OpenSSL support]) 846PGAC_ARG_BOOL(with, openssl, no, [build with OpenSSL support], 847 [AC_DEFINE([USE_OPENSSL], 1, [Define to build with OpenSSL support. (--with-openssl)])]) 848AC_MSG_RESULT([$with_openssl]) 849AC_SUBST(with_openssl) 850 851# 852# SELinux 853# 854AC_MSG_CHECKING([whether to build with SELinux support]) 855PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support]) 856AC_SUBST(with_selinux) 857AC_MSG_RESULT([$with_selinux]) 858 859# 860# Systemd 861# 862AC_MSG_CHECKING([whether to build with systemd support]) 863PGAC_ARG_BOOL(with, systemd, no, [build with systemd support], 864 [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])]) 865AC_SUBST(with_systemd) 866AC_MSG_RESULT([$with_systemd]) 867 868# 869# Readline 870# 871PGAC_ARG_BOOL(with, readline, yes, 872 [do not use GNU Readline nor BSD Libedit for editing]) 873# readline on MinGW has problems with backslashes in psql and other bugs. 874# This is particularly a problem with non-US code pages. 875# Therefore disable its use until we understand the cause. 2004-07-20 876if test "$PORTNAME" = "win32"; then 877 if test "$with_readline" = yes; then 878 AC_MSG_WARN([*** Readline does not work on MinGW --- disabling]) 879 with_readline=no 880 fi 881fi 882 883 884# 885# Prefer libedit 886# 887PGAC_ARG_BOOL(with, libedit-preferred, no, 888 [prefer BSD Libedit over GNU Readline]) 889 890 891# 892# UUID library 893# 894# There are at least three UUID libraries in common use: the FreeBSD/NetBSD 895# library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP 896# UUID library. More than one of these might be present on a given platform, 897# so we make the user say which one she wants. 898# 899PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)]) 900if test x"$with_uuid" = x"" ; then 901 with_uuid=no 902fi 903PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp]) 904if test "$with_ossp_uuid" = yes ; then 905 with_uuid=ossp 906fi 907 908if test "$with_uuid" = bsd ; then 909 AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.]) 910 UUID_EXTRA_OBJS="md5.o sha1.o" 911elif test "$with_uuid" = e2fs ; then 912 AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.]) 913 UUID_EXTRA_OBJS="md5.o sha1.o" 914elif test "$with_uuid" = ossp ; then 915 AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.]) 916 UUID_EXTRA_OBJS="" 917elif test "$with_uuid" = no ; then 918 UUID_EXTRA_OBJS="" 919else 920 AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp]) 921fi 922AC_SUBST(with_uuid) 923AC_SUBST(UUID_EXTRA_OBJS) 924 925 926# 927# XML 928# 929AC_MSG_CHECKING([whether to build with XML support]) 930PGAC_ARG_BOOL(with, libxml, no, [build with XML support], 931 [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])]) 932AC_MSG_RESULT([$with_libxml]) 933AC_SUBST(with_libxml) 934 935if test "$with_libxml" = yes ; then 936 # Check pkg-config, then xml2-config. But for backwards compatibility, 937 # setting XML2_CONFIG overrides pkg-config. 938 AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl 939 have_libxml2_pkg_config=no 940 if test -z "$XML2_CONFIG" -a -n "$PKG_CONFIG"; then 941 PKG_CHECK_MODULES(XML2, [libxml-2.0 >= 2.6.23], 942 [have_libxml2_pkg_config=yes], [# do nothing]) 943 fi 944 if test "$have_libxml2_pkg_config" = no ; then 945 PGAC_PATH_PROGS(XML2_CONFIG, xml2-config) 946 if test -n "$XML2_CONFIG"; then 947 XML2_CFLAGS=`$XML2_CONFIG --cflags` 948 XML2_LIBS=`$XML2_CONFIG --libs` 949 fi 950 fi 951 # Note the user could also set XML2_CFLAGS/XML2_LIBS directly 952 for pgac_option in $XML2_CFLAGS; do 953 case $pgac_option in 954 -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";; 955 esac 956 done 957 for pgac_option in $XML2_LIBS; do 958 case $pgac_option in 959 -L*) LDFLAGS="$LDFLAGS $pgac_option";; 960 esac 961 done 962fi 963 964 965# 966# XSLT 967# 968PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2], 969 [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])]) 970 971 972AC_SUBST(with_libxslt) 973 974# 975# tzdata 976# 977PGAC_ARG_REQ(with, system-tzdata, 978 [DIR], [use system time zone data in DIR]) 979AC_SUBST(with_system_tzdata) 980 981# 982# Zlib 983# 984PGAC_ARG_BOOL(with, zlib, yes, 985 [do not use Zlib]) 986AC_SUBST(with_zlib) 987 988# 989# Elf 990# 991 992# Assume system is ELF if it predefines __ELF__ as 1, 993# otherwise believe host_os based default. 994case $host_os in 995 freebsd1*|freebsd2*) elf=no;; 996 freebsd3*|freebsd4*) elf=yes;; 997esac 998 999AC_EGREP_CPP(yes, 1000[#if __ELF__ 1001 yes 1002#endif 1003], 1004[ELF_SYS=true], 1005[if test "X$elf" = "Xyes" ; then 1006 ELF_SYS=true 1007else 1008 ELF_SYS= 1009fi]) 1010AC_SUBST(ELF_SYS) 1011 1012# 1013# Assignments 1014# 1015 1016CPPFLAGS="$CPPFLAGS $INCLUDES" 1017LDFLAGS="$LDFLAGS $LIBDIRS" 1018 1019AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only]) 1020AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only]) 1021 1022PGAC_PROG_LD 1023AC_SUBST(LD) 1024AC_SUBST(with_gnu_ld) 1025AC_PROG_RANLIB 1026PGAC_CHECK_STRIP 1027AC_CHECK_TOOL(AR, ar, ar) 1028if test "$PORTNAME" = "win32"; then 1029 AC_CHECK_TOOL(DLLTOOL, dlltool, dlltool) 1030 AC_CHECK_TOOL(DLLWRAP, dllwrap, dllwrap) 1031 AC_CHECK_TOOL(WINDRES, windres, windres) 1032fi 1033 1034AC_PROG_INSTALL 1035# When Autoconf chooses install-sh as install program it tries to generate 1036# a relative path to it in each makefile where it substitutes it. This clashes 1037# with our Makefile.global concept. This workaround helps. 1038case $INSTALL in 1039 *install-sh*) install_bin='';; 1040 *) install_bin=$INSTALL;; 1041esac 1042AC_SUBST(install_bin) 1043 1044PGAC_PATH_PROGS(TAR, tar) 1045AC_PROG_LN_S 1046AC_PROG_MKDIR_P 1047# When Autoconf chooses install-sh as mkdir -p program it tries to generate 1048# a relative path to it in each makefile where it substitutes it. This clashes 1049# with our Makefile.global concept. This workaround helps. 1050case $MKDIR_P in 1051 *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';; 1052esac 1053 1054PGAC_PATH_BISON 1055PGAC_PATH_FLEX 1056 1057PGAC_PATH_PERL 1058if test "$with_perl" = yes; then 1059 if test -z "$PERL"; then 1060 AC_MSG_ERROR([Perl not found]) 1061 fi 1062 PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib]) 1063 if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then 1064 AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library 1065You might have to rebuild your Perl installation. Refer to the 1066documentation for details. Use --without-perl to disable building 1067PL/Perl.]) 1068 fi 1069 # On most platforms, archlibexp is also where the Perl include files live ... 1070 perl_includespec="-I$perl_archlibexp/CORE" 1071 # ... but on newer macOS versions, we must use -iwithsysroot to look 1072 # under $PG_SYSROOT 1073 if test \! -f "$perl_archlibexp/CORE/perl.h" ; then 1074 if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then 1075 perl_includespec="-iwithsysroot $perl_archlibexp/CORE" 1076 fi 1077 fi 1078 AC_SUBST(perl_includespec)dnl 1079 PGAC_CHECK_PERL_EMBED_CCFLAGS 1080 PGAC_CHECK_PERL_EMBED_LDFLAGS 1081fi 1082 1083if test "$with_python" = yes; then 1084 PGAC_PATH_PYTHON 1085 PGAC_CHECK_PYTHON_EMBED_SETUP 1086fi 1087 1088if test "$cross_compiling" = yes && test -z "$with_system_tzdata"; then 1089 PGAC_PATH_PROGS(ZIC, zic) 1090 if test -z "$ZIC"; then 1091 AC_MSG_ERROR([ 1092When cross-compiling, either use the option --with-system-tzdata to use 1093existing time-zone data, or set the environment variable ZIC to a zic 1094program to use during the build.]) 1095 fi 1096fi 1097 1098# 1099# Pthreads 1100# 1101# For each platform, we need to know about any special compile and link 1102# libraries, and whether the normal C function names are thread-safe. 1103# See the comment at the top of src/port/thread.c for more information. 1104# WIN32 doesn't need the pthread tests; it always uses threads 1105# 1106# These tests are run before the library-tests, because linking with the 1107# other libraries can pull in the pthread functions as a side-effect. We 1108# want to use the -pthread or similar flags directly, and not rely on 1109# the side-effects of linking with some other library. 1110 1111dnl note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER 1112dnl invocation below is the first one in the script, and autoconf generates 1113dnl additional code for that, which must not be inside the if-block. AS_IF 1114dnl knows how to do that. 1115AS_IF([test "$enable_thread_safety" = yes -a "$PORTNAME" != "win32"], 1116[ # then 1117AX_PTHREAD # set thread flags 1118 1119# Some platforms use these, so just define them. They can't hurt if they 1120# are not supported. For example, on Solaris -D_POSIX_PTHREAD_SEMANTICS 1121# enables 5-arg getpwuid_r, among other things. 1122PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS" 1123 1124# Check for *_r functions 1125_CFLAGS="$CFLAGS" 1126_LIBS="$LIBS" 1127CFLAGS="$CFLAGS $PTHREAD_CFLAGS" 1128LIBS="$LIBS $PTHREAD_LIBS" 1129 1130AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([ 1131pthread.h not found; use --disable-thread-safety to disable thread safety])]) 1132 1133AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r]) 1134 1135# Do test here with the proper thread flags 1136PGAC_FUNC_STRERROR_R_INT 1137 1138CFLAGS="$_CFLAGS" 1139LIBS="$_LIBS" 1140 1141], [ # else 1142# do not use values from template file 1143PTHREAD_CFLAGS= 1144PTHREAD_LIBS= 1145]) # fi 1146 1147AC_SUBST(PTHREAD_CFLAGS) 1148AC_SUBST(PTHREAD_LIBS) 1149 1150 1151## 1152## Libraries 1153## 1154## Most libraries are included only if they demonstrably provide a function 1155## we need, but libm is an exception: always include it, because there are 1156## too many compilers that play cute optimization games that will break 1157## probes for standard functions such as pow(). 1158## 1159 1160AC_CHECK_LIB(m, main) 1161AC_SEARCH_LIBS(setproctitle, util) 1162AC_SEARCH_LIBS(dlopen, dl) 1163AC_SEARCH_LIBS(socket, [socket ws2_32]) 1164AC_SEARCH_LIBS(shl_load, dld) 1165AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt]) 1166AC_SEARCH_LIBS(crypt, crypt) 1167AC_SEARCH_LIBS(shm_open, rt) 1168AC_SEARCH_LIBS(shm_unlink, rt) 1169AC_SEARCH_LIBS(clock_gettime, [rt posix4]) 1170# Solaris: 1171AC_SEARCH_LIBS(fdatasync, [rt posix4]) 1172# Required for thread_test.c on Solaris 1173AC_SEARCH_LIBS(sched_yield, rt) 1174# Required for thread_test.c on Solaris 2.5: 1175# Other ports use it too (HP-UX) so test unconditionally 1176AC_SEARCH_LIBS(gethostbyname_r, nsl) 1177# Cygwin: 1178AC_SEARCH_LIBS(shmget, cygipc) 1179 1180if test "$with_readline" = yes; then 1181 PGAC_CHECK_READLINE 1182 if test x"$pgac_cv_check_readline" = x"no"; then 1183 AC_MSG_ERROR([readline library not found 1184If you have readline already installed, see config.log for details on the 1185failure. It is possible the compiler isn't looking in the proper directory. 1186Use --without-readline to disable readline support.]) 1187 fi 1188fi 1189 1190if test "$with_zlib" = yes; then 1191 AC_CHECK_LIB(z, inflate, [], 1192 [AC_MSG_ERROR([zlib library not found 1193If you have zlib already installed, see config.log for details on the 1194failure. It is possible the compiler isn't looking in the proper directory. 1195Use --without-zlib to disable zlib support.])]) 1196fi 1197 1198if test "$enable_spinlocks" = yes; then 1199 AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.]) 1200else 1201 AC_MSG_WARN([ 1202*** Not using spinlocks will cause poor performance.]) 1203fi 1204 1205if test "$enable_atomics" = yes; then 1206 AC_DEFINE(HAVE_ATOMICS, 1, [Define to 1 if you want to use atomics if available.]) 1207else 1208 AC_MSG_WARN([ 1209*** Not using atomic operations will cause poor performance.]) 1210fi 1211 1212if test "$with_gssapi" = yes ; then 1213 if test "$PORTNAME" != "win32"; then 1214 AC_SEARCH_LIBS(gss_init_sec_context, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [], 1215 [AC_MSG_ERROR([could not find function 'gss_init_sec_context' required for GSSAPI])]) 1216 else 1217 LIBS="$LIBS -lgssapi32" 1218 fi 1219fi 1220 1221if test "$with_openssl" = yes ; then 1222 dnl Order matters! 1223 if test "$PORTNAME" != "win32"; then 1224 AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])]) 1225 AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])]) 1226 else 1227 AC_SEARCH_LIBS(CRYPTO_new_ex_data, [eay32 crypto], [], [AC_MSG_ERROR([library 'eay32' or 'crypto' is required for OpenSSL])]) 1228 AC_SEARCH_LIBS(SSL_new, [ssleay32 ssl], [], [AC_MSG_ERROR([library 'ssleay32' or 'ssl' is required for OpenSSL])]) 1229 fi 1230 AC_CHECK_FUNCS([SSL_get_current_compression X509_get_signature_nid]) 1231 # Functions introduced in OpenSSL 1.1.0. We used to check for 1232 # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL 1233 # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it 1234 # doesn't have these OpenSSL 1.1.0 functions. So check for individual 1235 # functions. 1236 AC_CHECK_FUNCS([OPENSSL_init_ssl BIO_get_data BIO_meth_new ASN1_STRING_get0_data]) 1237 # OpenSSL versions before 1.1.0 required setting callback functions, for 1238 # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock() 1239 # function was removed. 1240 AC_CHECK_FUNCS([CRYPTO_lock]) 1241 # SSL_clear_options is a macro in OpenSSL from 0.9.8 to 1.0.2, and 1242 # a function from 1.1.0 onwards so we cannot use AC_CHECK_FUNCS. 1243 AC_CACHE_CHECK([for SSL_clear_options], ac_cv_func_ssl_clear_options, 1244 [AC_LINK_IFELSE([AC_LANG_PROGRAM([ 1245 #include <openssl/ssl.h> 1246 #include <openssl/bio.h> 1247 SSL *ssl; 1248 ], 1249 [return SSL_clear_options(ssl, 0);])], 1250 [ac_cv_func_ssl_clear_options=yes], 1251 [ac_cv_func_ssl_clear_options=no])]) 1252 if test $ac_cv_func_ssl_clear_options = yes ; then 1253 AC_DEFINE(HAVE_SSL_CLEAR_OPTIONS, 1, [Define to 1 if you have SSL_clear_options()]) 1254 fi 1255fi 1256 1257if test "$with_pam" = yes ; then 1258 AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])]) 1259fi 1260 1261if test "$with_libxml" = yes ; then 1262 AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])]) 1263fi 1264 1265if test "$with_libxslt" = yes ; then 1266 AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])]) 1267fi 1268 1269# Note: We can test for libldap_r only after we know PTHREAD_LIBS; 1270# also, on AIX, we may need to have openssl in LIBS for this step. 1271if test "$with_ldap" = yes ; then 1272 _LIBS="$LIBS" 1273 if test "$PORTNAME" != "win32"; then 1274 AC_CHECK_LIB(ldap, ldap_bind, [], 1275 [AC_MSG_ERROR([library 'ldap' is required for LDAP])], 1276 [$EXTRA_LDAP_LIBS]) 1277 LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS" 1278 # This test is carried out against libldap. 1279 AC_CHECK_FUNCS([ldap_initialize]) 1280 if test "$enable_thread_safety" = yes; then 1281 # Use ldap_r for FE if available, else assume ldap is thread-safe. 1282 # On some platforms ldap_r fails to link without PTHREAD_LIBS. 1283 LIBS="$_LIBS" 1284 AC_CHECK_LIB(ldap_r, ldap_bind, 1285 [LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"], 1286 [LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"], 1287 [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS]) 1288 else 1289 LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS" 1290 fi 1291 else 1292 AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])]) 1293 LDAP_LIBS_FE="-lwldap32" 1294 LDAP_LIBS_BE="-lwldap32" 1295 fi 1296 LIBS="$_LIBS" 1297fi 1298AC_SUBST(LDAP_LIBS_FE) 1299AC_SUBST(LDAP_LIBS_BE) 1300 1301# for contrib/sepgsql 1302if test "$with_selinux" = yes; then 1303 AC_CHECK_LIB(selinux, security_compute_create_name, [], 1304 [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])]) 1305fi 1306 1307# for contrib/uuid-ossp 1308if test "$with_uuid" = bsd ; then 1309 # On BSD, the UUID functions are in libc 1310 AC_CHECK_FUNC(uuid_to_string, 1311 [UUID_LIBS=""], 1312 [AC_MSG_ERROR([BSD UUID functions are not present])]) 1313elif test "$with_uuid" = e2fs ; then 1314 # On macOS, the UUID functions are in libc 1315 AC_CHECK_FUNC(uuid_generate, 1316 [UUID_LIBS=""], 1317 [AC_CHECK_LIB(uuid, uuid_generate, 1318 [UUID_LIBS="-luuid"], 1319 [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])]) 1320elif test "$with_uuid" = ossp ; then 1321 AC_CHECK_LIB(ossp-uuid, uuid_export, 1322 [UUID_LIBS="-lossp-uuid"], 1323 [AC_CHECK_LIB(uuid, uuid_export, 1324 [UUID_LIBS="-luuid"], 1325 [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])]) 1326fi 1327AC_SUBST(UUID_LIBS) 1328 1329 1330## 1331## Header files 1332## 1333 1334AC_HEADER_STDBOOL 1335 1336AC_CHECK_HEADERS(m4_normalize([ 1337 atomic.h 1338 copyfile.h 1339 crypt.h 1340 fp_class.h 1341 getopt.h 1342 ieeefp.h 1343 ifaddrs.h 1344 langinfo.h 1345 mbarrier.h 1346 poll.h 1347 sys/epoll.h 1348 sys/ipc.h 1349 sys/prctl.h 1350 sys/procctl.h 1351 sys/pstat.h 1352 sys/resource.h 1353 sys/select.h 1354 sys/sem.h 1355 sys/shm.h 1356 sys/sockio.h 1357 sys/tas.h 1358 sys/un.h 1359 termios.h 1360 ucred.h 1361 utime.h 1362 wchar.h 1363 wctype.h 1364])) 1365 1366# On BSD, test for net/if.h will fail unless sys/socket.h 1367# is included first. 1368AC_CHECK_HEADERS(net/if.h, [], [], 1369[AC_INCLUDES_DEFAULT 1370#include <sys/socket.h> 1371]) 1372 1373# On OpenBSD, test for sys/ucred.h will fail unless sys/param.h 1374# is included first. 1375AC_CHECK_HEADERS(sys/ucred.h, [], [], 1376[AC_INCLUDES_DEFAULT 1377#include <sys/param.h> 1378]) 1379 1380# At least on IRIX, test for netinet/tcp.h will fail unless 1381# netinet/in.h is included first. 1382AC_CHECK_HEADERS(netinet/tcp.h, [], [], 1383[AC_INCLUDES_DEFAULT 1384#include <netinet/in.h> 1385]) 1386 1387if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then 1388 AC_CHECK_HEADERS(readline/readline.h, [], 1389 [AC_CHECK_HEADERS(readline.h, [], 1390 [AC_MSG_ERROR([readline header not found 1391If you have readline already installed, see config.log for details on the 1392failure. It is possible the compiler isn't looking in the proper directory. 1393Use --without-readline to disable readline support.])])]) 1394 AC_CHECK_HEADERS(readline/history.h, [], 1395 [AC_CHECK_HEADERS(history.h, [], 1396 [AC_MSG_ERROR([history header not found 1397If you have readline already installed, see config.log for details on the 1398failure. It is possible the compiler isn't looking in the proper directory. 1399Use --without-readline to disable readline support.])])]) 1400fi 1401 1402if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then 1403# Some installations of libedit usurp /usr/include/readline/, which seems 1404# bad practice, since in combined installations readline will have its headers 1405# there. We might have to resort to AC_EGREP checks to make sure we found 1406# the proper header... 1407 AC_CHECK_HEADERS(editline/readline.h, [], 1408 [AC_CHECK_HEADERS(readline.h, [], 1409 [AC_CHECK_HEADERS(readline/readline.h, [], 1410 [AC_MSG_ERROR([readline header not found 1411If you have libedit already installed, see config.log for details on the 1412failure. It is possible the compiler isn't looking in the proper directory. 1413Use --without-readline to disable libedit support.])])])]) 1414# Note: in a libedit installation, history.h is sometimes a dummy, and may 1415# not be there at all. Hence, don't complain if not found. We must check 1416# though, since in yet other versions it is an independent header. 1417 AC_CHECK_HEADERS(editline/history.h, [], 1418 [AC_CHECK_HEADERS(history.h, [], 1419 [AC_CHECK_HEADERS(readline/history.h)])]) 1420fi 1421 1422if test "$with_zlib" = yes; then 1423 AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found 1424If you have zlib already installed, see config.log for details on the 1425failure. It is possible the compiler isn't looking in the proper directory. 1426Use --without-zlib to disable zlib support.])]) 1427fi 1428 1429if test "$with_gssapi" = yes ; then 1430 AC_CHECK_HEADERS(gssapi/gssapi.h, [], 1431 [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])]) 1432fi 1433 1434if test "$with_openssl" = yes ; then 1435 AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])]) 1436 AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])]) 1437fi 1438 1439if test "$with_pam" = yes ; then 1440 AC_CHECK_HEADERS(security/pam_appl.h, [], 1441 [AC_CHECK_HEADERS(pam/pam_appl.h, [], 1442 [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])]) 1443fi 1444 1445if test "$with_bsd_auth" = yes ; then 1446 AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])]) 1447fi 1448 1449if test "$with_systemd" = yes ; then 1450 AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])]) 1451fi 1452 1453if test "$with_libxml" = yes ; then 1454 AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])]) 1455fi 1456 1457if test "$with_libxslt" = yes ; then 1458 AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])]) 1459fi 1460 1461if test "$with_ldap" = yes ; then 1462 if test "$PORTNAME" != "win32"; then 1463 AC_CHECK_HEADERS(ldap.h, [], 1464 [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])]) 1465 PGAC_LDAP_SAFE 1466 else 1467 AC_CHECK_HEADERS(winldap.h, [], 1468 [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])], 1469 [AC_INCLUDES_DEFAULT 1470#include <windows.h> 1471 ]) 1472 fi 1473fi 1474 1475if test "$with_bonjour" = yes ; then 1476 AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])]) 1477dnl At some point we might add something like 1478dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd) 1479dnl but right now, what that would mainly accomplish is to encourage 1480dnl people to try to use the avahi implementation, which does not work. 1481dnl If you want to use Apple's own Bonjour code on another platform, 1482dnl just add -ldns_sd to LIBS manually. 1483fi 1484 1485# for contrib/uuid-ossp 1486if test "$with_uuid" = bsd ; then 1487 AC_CHECK_HEADERS(uuid.h, 1488 [AC_EGREP_HEADER([uuid_to_string], uuid.h, [], 1489 [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])], 1490 [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])]) 1491elif test "$with_uuid" = e2fs ; then 1492 AC_CHECK_HEADERS(uuid/uuid.h, 1493 [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [], 1494 [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])], 1495 [AC_CHECK_HEADERS(uuid.h, 1496 [AC_EGREP_HEADER([uuid_generate], uuid.h, [], 1497 [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])], 1498 [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])]) 1499elif test "$with_uuid" = ossp ; then 1500 AC_CHECK_HEADERS(ossp/uuid.h, 1501 [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [], 1502 [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])], 1503 [AC_CHECK_HEADERS(uuid.h, 1504 [AC_EGREP_HEADER([uuid_export], uuid.h, [], 1505 [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])], 1506 [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])]) 1507fi 1508 1509if test "$PORTNAME" = "win32" ; then 1510 AC_CHECK_HEADERS(crtdefs.h) 1511fi 1512 1513## 1514## Types, structures, compiler characteristics 1515## 1516 1517m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that. 1518AC_C_BIGENDIAN 1519AC_C_INLINE 1520PGAC_PRINTF_ARCHETYPE 1521AC_C_FLEXIBLE_ARRAY_MEMBER 1522PGAC_C_SIGNED 1523PGAC_C_FUNCNAME_SUPPORT 1524PGAC_C_STATIC_ASSERT 1525PGAC_C_TYPEOF 1526PGAC_C_TYPES_COMPATIBLE 1527PGAC_C_BUILTIN_CONSTANT_P 1528PGAC_C_BUILTIN_UNREACHABLE 1529PGAC_C_COMPUTED_GOTO 1530PGAC_STRUCT_TIMEZONE 1531PGAC_UNION_SEMUN 1532PGAC_STRUCT_SOCKADDR_UN 1533PGAC_STRUCT_SOCKADDR_STORAGE 1534PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS 1535PGAC_STRUCT_ADDRINFO 1536AC_TYPE_INTPTR_T 1537AC_TYPE_UINTPTR_T 1538AC_TYPE_LONG_LONG_INT 1539 1540PGAC_TYPE_LOCALE_T 1541 1542# MSVC doesn't cope well with defining restrict to __restrict, the 1543# spelling it understands, because it conflicts with 1544# __declspec(restrict). Therefore we define pg_restrict to the 1545# appropriate definition, which presumably won't conflict. 1546# 1547# Allow platforms with buggy compilers to force restrict to not be 1548# used by setting $FORCE_DISABLE_RESTRICT=yes in the relevant 1549# template. 1550AC_C_RESTRICT 1551if test "$ac_cv_c_restrict" = "no" -o "x$FORCE_DISABLE_RESTRICT" = "xyes"; then 1552 pg_restrict="" 1553else 1554 pg_restrict="$ac_cv_c_restrict" 1555fi 1556AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict], 1557[Define to keyword to use for C99 restrict support, or to nothing if not 1558supported]) 1559 1560AC_CHECK_TYPES([struct cmsgcred], [], [], 1561[#include <sys/socket.h> 1562#include <sys/param.h> 1563#ifdef HAVE_SYS_UCRED_H 1564#include <sys/ucred.h> 1565#endif]) 1566 1567AC_CHECK_TYPES([struct option], [], [], 1568[#ifdef HAVE_GETOPT_H 1569#include <getopt.h> 1570#endif]) 1571 1572if test "$with_zlib" = yes; then 1573 # Check that <zlib.h> defines z_streamp (versions before about 1.0.4 1574 # did not). While we could work around the lack of z_streamp, it 1575 # seems unwise to encourage people to use such old zlib versions... 1576 AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old 1577Use --without-zlib to disable zlib support.])], 1578 [#include <zlib.h>]) 1579fi 1580 1581case $host_cpu in 1582 x86_64) 1583 # On x86_64, check if we can compile a popcntq instruction 1584 AC_CACHE_CHECK([whether assembler supports x86_64 popcntq], 1585 [pgac_cv_have_x86_64_popcntq], 1586 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], 1587 [long long x = 1; long long r; 1588 __asm__ __volatile__ (" popcntq %1,%0\n" : "=q"(r) : "rm"(x));])], 1589 [pgac_cv_have_x86_64_popcntq=yes], 1590 [pgac_cv_have_x86_64_popcntq=no])]) 1591 if test x"$pgac_cv_have_x86_64_popcntq" = xyes ; then 1592 AC_DEFINE(HAVE_X86_64_POPCNTQ, 1, [Define to 1 if the assembler supports X86_64's POPCNTQ instruction.]) 1593 fi 1594 ;; 1595 ppc*|powerpc*) 1596 # On PPC, check if assembler supports LWARX instruction's mutex hint bit 1597 AC_CACHE_CHECK([whether assembler supports lwarx hint bit], 1598 [pgac_cv_have_ppc_mutex_hint], 1599 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], 1600 [int a = 0; int *p = &a; int r; 1601 __asm__ __volatile__ (" lwarx %0,0,%1,1\n" : "=&r"(r) : "r"(p));])], 1602 [pgac_cv_have_ppc_mutex_hint=yes], 1603 [pgac_cv_have_ppc_mutex_hint=no])]) 1604 if test x"$pgac_cv_have_ppc_mutex_hint" = xyes ; then 1605 AC_DEFINE(HAVE_PPC_LWARX_MUTEX_HINT, 1, [Define to 1 if the assembler supports PPC's LWARX mutex hint bit.]) 1606 fi 1607 ;; 1608esac 1609 1610# Check largefile support. You might think this is a system service not a 1611# compiler characteristic, but you'd be wrong. We must check this before 1612# probing existence of related functions such as fseeko, since the largefile 1613# defines can affect what is generated for that. 1614if test "$PORTNAME" != "win32"; then 1615 AC_SYS_LARGEFILE 1616 dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define 1617 dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a 1618 dnl bug that causes readdir() to sometimes return EINVAL. On later macOS 1619 dnl versions where the feature actually works, it's on by default anyway. 1620 AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[]) 1621fi 1622 1623dnl Check for largefile support (must be after AC_SYS_LARGEFILE) 1624AC_CHECK_SIZEOF([off_t]) 1625 1626# If we don't have largefile support, can't handle segsize >= 2GB. 1627if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then 1628 AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.]) 1629fi 1630 1631AC_CHECK_SIZEOF([bool], [], 1632[#ifdef HAVE_STDBOOL_H 1633#include <stdbool.h> 1634#endif]) 1635 1636 1637## 1638## Functions, global variables 1639## 1640 1641PGAC_VAR_INT_TIMEZONE 1642AC_FUNC_ACCEPT_ARGTYPES 1643PGAC_FUNC_GETTIMEOFDAY_1ARG 1644PGAC_FUNC_WCSTOMBS_L 1645 1646# Some versions of libedit contain strlcpy(), setproctitle(), and other 1647# symbols that that library has no business exposing to the world. Pending 1648# acquisition of a clue by those developers, ignore libedit (including its 1649# possible alias of libreadline) while checking for everything else. 1650LIBS_including_readline="$LIBS" 1651LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'` 1652 1653AC_CHECK_FUNCS(m4_normalize([ 1654 cbrt 1655 clock_gettime 1656 copyfile 1657 fdatasync 1658 getifaddrs 1659 getpeerucred 1660 getrlimit 1661 mbstowcs_l 1662 memmove 1663 poll 1664 posix_fallocate 1665 ppoll 1666 pstat 1667 pthread_is_threaded_np 1668 readlink 1669 setproctitle 1670 setproctitle_fast 1671 setsid 1672 shm_open 1673 strchrnul 1674 strsignal 1675 symlink 1676 sync_file_range 1677 uselocale 1678 utime 1679 utimes 1680 wcstombs_l 1681])) 1682 1683# These typically are compiler builtins, for which AC_CHECK_FUNCS fails. 1684PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap16], [int x]) 1685PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap32], [int x]) 1686PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap64], [long int x]) 1687# We assume that we needn't test all widths of these explicitly: 1688PGAC_CHECK_BUILTIN_FUNC([__builtin_clz], [unsigned int x]) 1689PGAC_CHECK_BUILTIN_FUNC([__builtin_ctz], [unsigned int x]) 1690PGAC_CHECK_BUILTIN_FUNC([__builtin_popcount], [unsigned int x]) 1691 1692AC_REPLACE_FUNCS(fseeko) 1693case $host_os in 1694 # NetBSD uses a custom fseeko/ftello built on fsetpos/fgetpos 1695 # Mingw uses macros to access Win32 API calls 1696 netbsd*|mingw*) 1697 AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.]) 1698 ac_cv_func_fseeko=yes;; 1699 *) 1700 AC_FUNC_FSEEKO;; 1701esac 1702 1703# posix_fadvise() is a no-op on Solaris, so don't incur function overhead 1704# by calling it, 2009-04-02 1705# http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c 1706dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions 1707AS_IF([test "$PORTNAME" != "solaris"], [ 1708AC_CHECK_FUNCS(posix_fadvise) 1709AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>]) 1710]) # fi 1711 1712AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>]) 1713AC_CHECK_DECLS([strlcat, strlcpy, strnlen]) 1714# This is probably only present on macOS, but may as well check always 1715AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>]) 1716 1717AC_CHECK_DECLS([RTLD_GLOBAL, RTLD_NOW], [], [], [#include <dlfcn.h>]) 1718 1719AC_CHECK_TYPE([struct sockaddr_in6], 1720 [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.])], 1721 [], 1722[$ac_includes_default 1723#include <netinet/in.h>]) 1724 1725AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS], 1726[AC_LINK_IFELSE([AC_LANG_PROGRAM( 1727[#include <machine/vmparam.h> 1728#include <sys/exec.h> 1729], 1730[PS_STRINGS->ps_nargvstr = 1; 1731PS_STRINGS->ps_argvstr = "foo";])], 1732[pgac_cv_var_PS_STRINGS=yes], 1733[pgac_cv_var_PS_STRINGS=no])]) 1734if test "$pgac_cv_var_PS_STRINGS" = yes ; then 1735 AC_DEFINE([HAVE_PS_STRINGS], 1, [Define to 1 if the PS_STRINGS thing exists.]) 1736fi 1737 1738 1739dnl Cannot use AC_CHECK_FUNC because isinf may be a macro 1740AC_CACHE_CHECK([for isinf], ac_cv_func_isinf, 1741[AC_LINK_IFELSE([AC_LANG_PROGRAM([ 1742#include <math.h> 1743double glob_double; 1744], 1745[return isinf(glob_double) ? 0 : 1;])], 1746[ac_cv_func_isinf=yes], 1747[ac_cv_func_isinf=no])]) 1748 1749if test $ac_cv_func_isinf = yes ; then 1750 AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().]) 1751else 1752 AC_LIBOBJ(isinf) 1753 # Look for a way to implement a substitute for isinf() 1754 AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break]) 1755fi 1756 1757AC_REPLACE_FUNCS(m4_normalize([ 1758 crypt 1759 dlopen 1760 fls 1761 getopt 1762 getrusage 1763 inet_aton 1764 mkdtemp 1765 pread 1766 pwrite 1767 random 1768 rint 1769 srandom 1770 strlcat 1771 strlcpy 1772 strnlen 1773 strtof 1774])) 1775 1776case $host_os in 1777 # Cygwin and (apparently, based on test results) Mingw both 1778 # have a broken strtof(), so substitute the same replacement 1779 # code we use with VS2013. That's not a perfect fix, since 1780 # (unlike with VS2013) it doesn't avoid double-rounding, but 1781 # we have no better options. To get that, though, we have to 1782 # force the file to be compiled despite HAVE_STRTOF. 1783 mingw*|cygwin*) 1784 AC_LIBOBJ([strtof]) 1785 AC_MSG_NOTICE([On $host_os we will use our strtof wrapper.]) 1786 ;; 1787esac 1788 1789case $host_os in 1790 1791 # Windows uses a specialised env handler 1792 # and doesn't need a replacement getpeereid because it doesn't use 1793 # Unix sockets. 1794 mingw*) 1795 AC_DEFINE(HAVE_SETENV, 1, [Define to 1 because replacement version used.]) 1796 AC_DEFINE(HAVE_UNSETENV, 1, [Define to 1 because replacement version used.]) 1797 AC_DEFINE(HAVE_GETPEEREID, 1, [Define to 1 because function not required.]) 1798 ac_cv_func_setenv=yes 1799 ac_cv_func_unsetenv=yes 1800 ac_cv_func_getpeereid=yes;; 1801 *) 1802 AC_REPLACE_FUNCS([setenv unsetenv getpeereid]) 1803 ;; 1804esac 1805 1806# System's version of getaddrinfo(), if any, may be used only if we found 1807# a definition for struct addrinfo; see notes in src/include/getaddrinfo.h. 1808# We use only our own getaddrinfo.c on Windows, but it's time to revisit that. 1809if test x"$ac_cv_type_struct_addrinfo" = xyes && \ 1810 test "$PORTNAME" != "win32"; then 1811 AC_REPLACE_FUNCS([getaddrinfo]) 1812else 1813 AC_LIBOBJ(getaddrinfo) 1814fi 1815 1816# Similarly, use system's getopt_long() only if system provides struct option. 1817if test x"$ac_cv_type_struct_option" = xyes ; then 1818 AC_REPLACE_FUNCS([getopt_long]) 1819else 1820 AC_LIBOBJ(getopt_long) 1821fi 1822 1823# On OpenBSD and Solaris, getopt() doesn't do what we want for long options 1824# (i.e., allow '-' as a flag character), so use our version on those platforms. 1825if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then 1826 AC_LIBOBJ(getopt) 1827fi 1828 1829# mingw has adopted a GNU-centric interpretation of optind/optreset, 1830# so always use our version on Windows. 1831if test "$PORTNAME" = "win32"; then 1832 AC_LIBOBJ(getopt) 1833 AC_LIBOBJ(getopt_long) 1834fi 1835 1836# Win32 (really MinGW) support 1837if test "$PORTNAME" = "win32"; then 1838 AC_CHECK_FUNCS(_configthreadlocale) 1839 AC_REPLACE_FUNCS(gettimeofday) 1840 AC_LIBOBJ(dirmod) 1841 AC_LIBOBJ(kill) 1842 AC_LIBOBJ(open) 1843 AC_LIBOBJ(system) 1844 AC_LIBOBJ(win32env) 1845 AC_LIBOBJ(win32error) 1846 AC_LIBOBJ(win32security) 1847 AC_LIBOBJ(win32setlocale) 1848 AC_DEFINE([HAVE_SYMLINK], 1, 1849 [Define to 1 if you have the `symlink' function.]) 1850 AC_CHECK_TYPES(MINIDUMP_TYPE, [pgac_minidump_type=yes], [pgac_minidump_type=no], [ 1851#define WIN32_LEAN_AND_MEAN 1852#include <windows.h> 1853#include <string.h> 1854#include <dbghelp.h>]) 1855fi 1856if test x"$pgac_minidump_type" = x"yes" ; then 1857 AC_SUBST(have_win32_dbghelp,yes) 1858else 1859 AC_SUBST(have_win32_dbghelp,no) 1860fi 1861 1862# Cygwin needs only a bit of that 1863if test "$PORTNAME" = "cygwin"; then 1864 AC_LIBOBJ(dirmod) 1865fi 1866 1867AC_CHECK_FUNC(syslog, 1868 [AC_CHECK_HEADER(syslog.h, 1869 [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])]) 1870 1871AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr, 1872[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], 1873 [extern int opterr; opterr = 1;])], 1874 [pgac_cv_var_int_opterr=yes], 1875 [pgac_cv_var_int_opterr=no])]) 1876if test x"$pgac_cv_var_int_opterr" = x"yes"; then 1877 AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.]) 1878fi 1879 1880AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset, 1881[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], 1882 [extern int optreset; optreset = 1;])], 1883 [pgac_cv_var_int_optreset=yes], 1884 [pgac_cv_var_int_optreset=no])]) 1885if test x"$pgac_cv_var_int_optreset" = x"yes"; then 1886 AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.]) 1887fi 1888 1889AC_CHECK_FUNCS([strtoll __strtoll strtoq], [break]) 1890AC_CHECK_FUNCS([strtoull __strtoull strtouq], [break]) 1891# strto[u]ll may exist but not be declared 1892AC_CHECK_DECLS([strtoll, strtoull]) 1893 1894if test "$with_icu" = yes; then 1895 ac_save_CPPFLAGS=$CPPFLAGS 1896 CPPFLAGS="$ICU_CFLAGS $CPPFLAGS" 1897 1898 # Verify we have ICU's header files 1899 AC_CHECK_HEADER(unicode/ucol.h, [], 1900 [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])]) 1901 1902 CPPFLAGS=$ac_save_CPPFLAGS 1903fi 1904 1905if test "$with_llvm" = yes; then 1906 PGAC_CHECK_LLVM_FUNCTIONS() 1907fi 1908 1909# Lastly, restore full LIBS list and check for readline/libedit symbols 1910LIBS="$LIBS_including_readline" 1911 1912if test "$with_readline" = yes; then 1913 PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER 1914 AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function rl_reset_screen_size]) 1915 AC_CHECK_FUNCS([append_history history_truncate_file]) 1916fi 1917 1918 1919# This test makes sure that run tests work at all. Sometimes a shared 1920# library is found by the linker, but the runtime linker can't find it. 1921# This check should come after all modifications of compiler or linker 1922# variables, and before any other run tests. 1923AC_MSG_CHECKING([test program]) 1924AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])], 1925[AC_MSG_RESULT(ok)], 1926[AC_MSG_RESULT(failed) 1927AC_MSG_ERROR([[ 1928Could not execute a simple test program. This may be a problem 1929related to locating shared libraries. Check the file 'config.log' 1930for the exact reason.]])], 1931[AC_MSG_RESULT([cross-compiling])]) 1932 1933# -------------------- 1934# Run tests below here 1935# -------------------- 1936 1937dnl Check to see if we have a working 64-bit integer type. 1938dnl Since Postgres 8.4, we no longer support compilers without a working 1939dnl 64-bit type; but we have to determine whether that type is called 1940dnl "long int" or "long long int". 1941 1942PGAC_TYPE_64BIT_INT([long int]) 1943 1944if test x"$HAVE_LONG_INT_64" = x"yes" ; then 1945 pg_int64_type="long int" 1946else 1947 PGAC_TYPE_64BIT_INT([long long int]) 1948 if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then 1949 pg_int64_type="long long int" 1950 else 1951 AC_MSG_ERROR([Cannot find a working 64-bit integer type.]) 1952 fi 1953fi 1954 1955AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type, 1956 [Define to the name of a signed 64-bit integer type.]) 1957 1958# Select the printf length modifier that goes with that, too. 1959if test x"$pg_int64_type" = x"long long int" ; then 1960 INT64_MODIFIER='"ll"' 1961else 1962 INT64_MODIFIER='"l"' 1963fi 1964 1965AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER, 1966 [Define to the appropriate printf length modifier for 64-bit ints.]) 1967 1968# has to be down here, rather than with the other builtins, because 1969# the test uses PG_INT64_TYPE. 1970PGAC_C_BUILTIN_OP_OVERFLOW 1971 1972# Check size of void *, size_t (enables tweaks for > 32bit address space) 1973AC_CHECK_SIZEOF([void *]) 1974AC_CHECK_SIZEOF([size_t]) 1975AC_CHECK_SIZEOF([long]) 1976 1977# Decide whether float4 is passed by value: user-selectable, enabled by default 1978AC_MSG_CHECKING([whether to build with float4 passed by value]) 1979PGAC_ARG_BOOL(enable, float4-byval, yes, [disable float4 passed by value], 1980 [AC_DEFINE([USE_FLOAT4_BYVAL], 1, 1981 [Define to 1 if you want float4 values to be passed by value. (--enable-float4-byval)]) 1982 float4passbyval=true], 1983 [float4passbyval=false]) 1984AC_MSG_RESULT([$enable_float4_byval]) 1985AC_DEFINE_UNQUOTED([FLOAT4PASSBYVAL], [$float4passbyval], [float4 values are passed by value if 'true', by reference if 'false']) 1986 1987# Decide whether float8 is passed by value. 1988# Note: this setting also controls int8 and related types such as timestamp. 1989# If sizeof(Datum) >= 8, this is user-selectable, enabled by default. 1990# If not, trying to select it is an error. 1991AC_MSG_CHECKING([whether to build with float8 passed by value]) 1992if test $ac_cv_sizeof_void_p -ge 8 ; then 1993 PGAC_ARG_BOOL(enable, float8-byval, yes, [disable float8 passed by value]) 1994else 1995 PGAC_ARG_BOOL(enable, float8-byval, no, [disable float8 passed by value]) 1996 if test "$enable_float8_byval" = yes ; then 1997 AC_MSG_ERROR([--enable-float8-byval is not supported on 32-bit platforms.]) 1998 fi 1999fi 2000if test "$enable_float8_byval" = yes ; then 2001 AC_DEFINE([USE_FLOAT8_BYVAL], 1, 2002 [Define to 1 if you want float8, int8, etc values to be passed by value. (--enable-float8-byval)]) 2003 float8passbyval=true 2004else 2005 float8passbyval=false 2006fi 2007AC_MSG_RESULT([$enable_float8_byval]) 2008AC_DEFINE_UNQUOTED([FLOAT8PASSBYVAL], [$float8passbyval], [float8, int8, and related values are passed by value if 'true', by reference if 'false']) 2009 2010# Determine memory alignment requirements for the basic C data types. 2011 2012AC_CHECK_ALIGNOF(short) 2013AC_CHECK_ALIGNOF(int) 2014AC_CHECK_ALIGNOF(long) 2015if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then 2016 AC_CHECK_ALIGNOF(long long int) 2017fi 2018AC_CHECK_ALIGNOF(double) 2019 2020# Compute maximum alignment of any basic type. 2021# We assume long's alignment is at least as strong as char, short, or int; 2022# but we must check long long (if it is being used for int64) and double. 2023# Note that we intentionally do not consider any types wider than 64 bits, 2024# as allowing MAXIMUM_ALIGNOF to exceed 8 would be too much of a penalty 2025# for disk and memory space. 2026 2027MAX_ALIGNOF=$ac_cv_alignof_long 2028if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then 2029 MAX_ALIGNOF=$ac_cv_alignof_double 2030fi 2031if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $ac_cv_alignof_long_long_int ; then 2032 MAX_ALIGNOF="$ac_cv_alignof_long_long_int" 2033fi 2034AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.]) 2035 2036 2037# Some platforms predefine the types int8, int16, etc. Only check 2038# a (hopefully) representative subset. 2039AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [], 2040[#include <stdio.h>]) 2041 2042# Some compilers offer a 128-bit integer scalar type. 2043PGAC_TYPE_128BIT_INT 2044 2045# Check for various atomic operations now that we have checked how to declare 2046# 64bit integers. 2047PGAC_HAVE_GCC__SYNC_CHAR_TAS 2048PGAC_HAVE_GCC__SYNC_INT32_TAS 2049PGAC_HAVE_GCC__SYNC_INT32_CAS 2050PGAC_HAVE_GCC__SYNC_INT64_CAS 2051PGAC_HAVE_GCC__ATOMIC_INT32_CAS 2052PGAC_HAVE_GCC__ATOMIC_INT64_CAS 2053 2054 2055# Check for x86 cpuid instruction 2056AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid], 2057[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>], 2058 [[unsigned int exx[4] = {0, 0, 0, 0}; 2059 __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]); 2060 ]])], 2061 [pgac_cv__get_cpuid="yes"], 2062 [pgac_cv__get_cpuid="no"])]) 2063if test x"$pgac_cv__get_cpuid" = x"yes"; then 2064 AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.]) 2065fi 2066 2067AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid], 2068[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>], 2069 [[unsigned int exx[4] = {0, 0, 0, 0}; 2070 __get_cpuid(exx[0], 1); 2071 ]])], 2072 [pgac_cv__cpuid="yes"], 2073 [pgac_cv__cpuid="no"])]) 2074if test x"$pgac_cv__cpuid" = x"yes"; then 2075 AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.]) 2076fi 2077 2078# Check for Intel SSE 4.2 intrinsics to do CRC calculations. 2079# 2080# First check if the _mm_crc32_u8 and _mm_crc32_u64 intrinsics can be used 2081# with the default compiler flags. If not, check if adding the -msse4.2 2082# flag helps. CFLAGS_SSE42 is set to -msse4.2 if that's required. 2083PGAC_SSE42_CRC32_INTRINSICS([]) 2084if test x"$pgac_sse42_crc32_intrinsics" != x"yes"; then 2085 PGAC_SSE42_CRC32_INTRINSICS([-msse4.2]) 2086fi 2087AC_SUBST(CFLAGS_SSE42) 2088 2089# Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all 2090# define __SSE4_2__ in that case. 2091AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ 2092#ifndef __SSE4_2__ 2093#error __SSE4_2__ not defined 2094#endif 2095])], [SSE4_2_TARGETED=1]) 2096 2097# Check for ARMv8 CRC Extension intrinsics to do CRC calculations. 2098# 2099# First check if __crc32c* intrinsics can be used with the default compiler 2100# flags. If not, check if adding -march=armv8-a+crc flag helps. 2101# CFLAGS_ARMV8_CRC32C is set if the extra flag is required. 2102PGAC_ARMV8_CRC32C_INTRINSICS([]) 2103if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then 2104 PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc]) 2105fi 2106AC_SUBST(CFLAGS_ARMV8_CRC32C) 2107 2108# Select CRC-32C implementation. 2109# 2110# If we are targeting a processor that has Intel SSE 4.2 instructions, we can 2111# use the special CRC instructions for calculating CRC-32C. If we're not 2112# targeting such a processor, but we can nevertheless produce code that uses 2113# the SSE intrinsics, perhaps with some extra CFLAGS, compile both 2114# implementations and select which one to use at runtime, depending on whether 2115# SSE 4.2 is supported by the processor we're running on. 2116# 2117# Similarly, if we are targeting an ARM processor that has the CRC 2118# instructions that are part of the ARMv8 CRC Extension, use them. And if 2119# we're not targeting such a processor, but can nevertheless produce code that 2120# uses the CRC instructions, compile both, and select at runtime. 2121# 2122# You can override this logic by setting the appropriate USE_*_CRC32 flag to 1 2123# in the template or configure command line. 2124if test x"$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 2125 # Use Intel SSE 4.2 if available. 2126 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then 2127 USE_SSE42_CRC32C=1 2128 else 2129 # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for 2130 # the runtime check. 2131 if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then 2132 USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1 2133 else 2134 # Use ARM CRC Extension if available. 2135 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_ARMV8_CRC32C" = x""; then 2136 USE_ARMV8_CRC32C=1 2137 else 2138 # ARM CRC Extension, with runtime check? 2139 if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then 2140 USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1 2141 else 2142 # fall back to slicing-by-8 algorithm, which doesn't require any 2143 # special CPU support. 2144 USE_SLICING_BY_8_CRC32C=1 2145 fi 2146 fi 2147 fi 2148 fi 2149fi 2150 2151# Set PG_CRC32C_OBJS appropriately depending on the selected implementation. 2152AC_MSG_CHECKING([which CRC-32C implementation to use]) 2153if test x"$USE_SSE42_CRC32C" = x"1"; then 2154 AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.]) 2155 PG_CRC32C_OBJS="pg_crc32c_sse42.o" 2156 AC_MSG_RESULT(SSE 4.2) 2157else 2158 if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then 2159 AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.]) 2160 PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o pg_crc32c_sse42_choose.o" 2161 AC_MSG_RESULT(SSE 4.2 with runtime check) 2162 else 2163 if test x"$USE_ARMV8_CRC32C" = x"1"; then 2164 AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.]) 2165 PG_CRC32C_OBJS="pg_crc32c_armv8.o" 2166 AC_MSG_RESULT(ARMv8 CRC instructions) 2167 else 2168 if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then 2169 AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.]) 2170 PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o" 2171 AC_MSG_RESULT(ARMv8 CRC instructions with runtime check) 2172 else 2173 AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).]) 2174 PG_CRC32C_OBJS="pg_crc32c_sb8.o" 2175 AC_MSG_RESULT(slicing-by-8) 2176 fi 2177 fi 2178 fi 2179fi 2180AC_SUBST(PG_CRC32C_OBJS) 2181 2182 2183# Select semaphore implementation type. 2184if test "$PORTNAME" != "win32"; then 2185 if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then 2186 # Need sem_open for this 2187 AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1]) 2188 fi 2189 if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then 2190 # Need sem_init for this 2191 AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1]) 2192 fi 2193 AC_MSG_CHECKING([which semaphore API to use]) 2194 if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then 2195 AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.]) 2196 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" 2197 sematype="named POSIX" 2198 else 2199 if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then 2200 AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.]) 2201 SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" 2202 sematype="unnamed POSIX" 2203 else 2204 AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.]) 2205 SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c" 2206 sematype="System V" 2207 fi 2208 fi 2209 AC_MSG_RESULT([$sematype]) 2210else 2211 AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.]) 2212 SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c" 2213fi 2214 2215 2216# Select shared-memory implementation type. 2217if test "$PORTNAME" != "win32"; then 2218 AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.]) 2219 SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c" 2220else 2221 AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.]) 2222 SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c" 2223fi 2224 2225# Select random number source 2226# 2227# You can override this logic by setting the appropriate USE_*RANDOM flag to 1 2228# in the template or configure command line. 2229 2230# If not selected manually, try to select a source automatically. 2231if test x"$USE_OPENSSL_RANDOM" = x"" && test x"$USE_WIN32_RANDOM" = x"" && test x"$USE_DEV_URANDOM" = x"" ; then 2232 if test x"$with_openssl" = x"yes" ; then 2233 USE_OPENSSL_RANDOM=1 2234 elif test "$PORTNAME" = "win32" ; then 2235 USE_WIN32_RANDOM=1 2236 else 2237 AC_CHECK_FILE([/dev/urandom], [], []) 2238 2239 if test x"$ac_cv_file__dev_urandom" = x"yes" ; then 2240 USE_DEV_URANDOM=1 2241 fi 2242 fi 2243fi 2244 2245AC_MSG_CHECKING([which random number source to use]) 2246if test x"$USE_OPENSSL_RANDOM" = x"1" ; then 2247 AC_DEFINE(USE_OPENSSL_RANDOM, 1, [Define to use OpenSSL for random number generation]) 2248 AC_MSG_RESULT([OpenSSL]) 2249elif test x"$USE_WIN32_RANDOM" = x"1" ; then 2250 AC_DEFINE(USE_WIN32_RANDOM, 1, [Define to use native Windows API for random number generation]) 2251 AC_MSG_RESULT([Windows native]) 2252elif test x"$USE_DEV_URANDOM" = x"1" ; then 2253 AC_DEFINE(USE_DEV_URANDOM, 1, [Define to use /dev/urandom for random number generation]) 2254 AC_MSG_RESULT([/dev/urandom]) 2255else 2256 AC_MSG_ERROR([ 2257no source of strong random numbers was found 2258PostgreSQL can use OpenSSL or /dev/urandom as a source of random numbers.]) 2259fi 2260 2261# If not set in template file, set bytes to use libc memset() 2262if test x"$MEMSET_LOOP_LIMIT" = x"" ; then 2263 MEMSET_LOOP_LIMIT=1024 2264fi 2265AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().]) 2266 2267 2268if test "$enable_nls" = yes ; then 2269 PGAC_CHECK_GETTEXT 2270fi 2271 2272# Check for Tcl configuration script tclConfig.sh 2273if test "$with_tcl" = yes; then 2274 PGAC_PATH_TCLCONFIGSH([$with_tclconfig]) 2275 PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH], 2276 [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD]) 2277 AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one 2278 if test "$TCL_SHARED_BUILD" != 1; then 2279 AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library 2280Use --without-tcl to disable building PL/Tcl.]) 2281 fi 2282 # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h> 2283 ac_save_CPPFLAGS=$CPPFLAGS 2284 CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS" 2285 AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])]) 2286 CPPFLAGS=$ac_save_CPPFLAGS 2287fi 2288 2289# check for <perl.h> 2290if test "$with_perl" = yes; then 2291 ac_save_CPPFLAGS=$CPPFLAGS 2292 CPPFLAGS="$CPPFLAGS $perl_includespec" 2293 AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])], 2294 [#include <EXTERN.h>]) 2295 # While we're at it, check that we can link to libperl. 2296 # On most platforms, if perl.h is there then libperl.so will be too, but at 2297 # this writing Debian packages them separately. There is no known reason to 2298 # waste cycles on separate probes for the Tcl or Python libraries, though. 2299 # On some Red Hat platforms, the link attempt can fail if we don't use 2300 # CFLAGS_SL while building the test program. 2301 ac_save_CFLAGS=$CFLAGS 2302 CFLAGS="$CFLAGS $CFLAGS_SL" 2303 pgac_save_LIBS=$LIBS 2304 LIBS="$perl_embed_ldflags" 2305 AC_MSG_CHECKING([for libperl]) 2306 AC_LINK_IFELSE([AC_LANG_PROGRAM([ 2307#include <EXTERN.h> 2308#include <perl.h> 2309], [perl_alloc();])], 2310 [AC_MSG_RESULT(yes)], 2311 [AC_MSG_RESULT(no) 2312 AC_MSG_ERROR([libperl library is required for Perl])]) 2313 LIBS=$pgac_save_LIBS 2314 CFLAGS=$ac_save_CFLAGS 2315 CPPFLAGS=$ac_save_CPPFLAGS 2316fi 2317 2318# check for <Python.h> 2319if test "$with_python" = yes; then 2320 ac_save_CPPFLAGS=$CPPFLAGS 2321 CPPFLAGS="$python_includespec $CPPFLAGS" 2322 AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])]) 2323 CPPFLAGS=$ac_save_CPPFLAGS 2324fi 2325 2326# 2327# Check for documentation-building tools 2328# 2329PGAC_PATH_PROGS(XMLLINT, xmllint) 2330PGAC_PATH_PROGS(XSLTPROC, xsltproc) 2331PGAC_PATH_PROGS(FOP, fop) 2332PGAC_PATH_PROGS(DBTOEPUB, dbtoepub) 2333 2334# 2335# Check for test tools 2336# 2337if test "$enable_tap_tests" = yes; then 2338 # Check for necessary modules, unless user has specified the "prove" to use; 2339 # in that case it's her responsibility to have a working configuration. 2340 # (prove might be part of a different Perl installation than perl, eg on 2341 # MSys, so the result of AX_PROG_PERL_MODULES could be irrelevant anyway.) 2342 if test -z "$PROVE"; then 2343 # Test::More and Time::HiRes are supposed to be part of core Perl, 2344 # but some distros omit them in a minimal installation. 2345 AX_PROG_PERL_MODULES([IPC::Run Test::More=0.87 Time::HiRes], , 2346 [AC_MSG_ERROR([Additional Perl modules are required to run TAP tests])]) 2347 fi 2348 # Now make sure we know where prove is 2349 PGAC_PATH_PROGS(PROVE, prove) 2350 if test -z "$PROVE"; then 2351 AC_MSG_ERROR([prove not found]) 2352 fi 2353fi 2354 2355# Thread testing 2356 2357# We have to run the thread test near the end so we have all our symbols 2358# defined. Cross compiling throws a warning. 2359# 2360if test "$enable_thread_safety" = yes; then 2361if test "$PORTNAME" != "win32" 2362then 2363AC_MSG_CHECKING([thread safety of required library functions]) 2364 2365_CFLAGS="$CFLAGS" 2366_LIBS="$LIBS" 2367CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE" 2368LIBS="$LIBS $PTHREAD_LIBS" 2369AC_RUN_IFELSE( 2370 [AC_LANG_SOURCE([[#include "$srcdir/src/test/thread/thread_test.c"]])], 2371 [AC_MSG_RESULT(yes)], 2372 [AC_MSG_RESULT(no) 2373 AC_MSG_ERROR([thread test program failed 2374This platform is not thread-safe. Check the file 'config.log' or compile 2375and run src/test/thread/thread_test for the exact reason. 2376Use --disable-thread-safety to disable thread safety.])], 2377 [AC_MSG_RESULT(maybe) 2378 AC_MSG_WARN([ 2379*** Skipping thread test program because of cross-compile build. 2380*** Run the program in src/test/thread on the target machine. 2381])]) 2382CFLAGS="$_CFLAGS" 2383LIBS="$_LIBS" 2384else 2385AC_MSG_WARN([*** skipping thread test on Win32]) 2386fi 2387fi 2388 2389# If compiler will take -Wl,--as-needed (or various platform-specific 2390# spellings thereof) then add that to LDFLAGS. This is much easier than 2391# trying to filter LIBS to the minimum for each executable. 2392# On (at least) some Red-Hat-derived systems, this switch breaks linking to 2393# libreadline; therefore we postpone testing it until we know what library 2394# dependencies readline has. The test code will try to link with $LIBS. 2395if test "$with_readline" = yes; then 2396 link_test_func=readline 2397else 2398 link_test_func=exit 2399fi 2400 2401if test "$PORTNAME" = "darwin"; then 2402 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func) 2403elif test "$PORTNAME" = "openbsd"; then 2404 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func) 2405else 2406 PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func) 2407fi 2408 2409# Create compiler version string 2410if test x"$GCC" = x"yes" ; then 2411 cc_string=`${CC} --version | sed q` 2412 case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac 2413elif test x"$SUN_STUDIO_CC" = x"yes" ; then 2414 cc_string=`${CC} -V 2>&1 | sed q` 2415else 2416 cc_string=$CC 2417fi 2418 2419AC_DEFINE_UNQUOTED(PG_VERSION_STR, 2420 ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"], 2421 [A string containing the version number, platform, and C compiler]) 2422 2423# Supply a numeric version string for use by 3rd party add-ons 2424# awk -F is a regex on some platforms, and not on others, so make "." a tab 2425[PG_VERSION_NUM="`echo "$PACKAGE_VERSION" | sed 's/[A-Za-z].*$//' | 2426tr '.' ' ' | 2427$AWK '{printf "%d%04d", $1, $2}'`"] 2428AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number]) 2429AC_SUBST(PG_VERSION_NUM) 2430 2431# If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not 2432# literally, so that it's possible to override it at build time using 2433# a command like "make ... PG_SYSROOT=path". This has to be done after 2434# we've finished all configure checks that depend on CPPFLAGS. 2435# The same for LDFLAGS, too. 2436if test x"$PG_SYSROOT" != x; then 2437 CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"` 2438 LDFLAGS=`echo "$LDFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"` 2439fi 2440AC_SUBST(PG_SYSROOT) 2441 2442 2443# Begin output steps 2444 2445AC_MSG_NOTICE([using compiler=$cc_string]) 2446AC_MSG_NOTICE([using CFLAGS=$CFLAGS]) 2447AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS]) 2448AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS]) 2449# Currently only used when LLVM is used 2450if test "$with_llvm" = yes ; then 2451 AC_MSG_NOTICE([using CXX=$CXX]) 2452 AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS]) 2453 AC_MSG_NOTICE([using CLANG=$CLANG]) 2454 AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS]) 2455 AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS]) 2456fi 2457 2458# prepare build tree if outside source tree 2459# Note 1: test -ef might not exist, but it's more reliable than `pwd`. 2460# Note 2: /bin/pwd might be better than shell's built-in at getting 2461# a symlink-free name. 2462if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then 2463 vpath_build=no 2464else 2465 vpath_build=yes 2466 if test "$no_create" != yes; then 2467 _AS_ECHO_N([preparing build tree... ]) 2468 pgac_abs_top_srcdir=`cd "$srcdir" && pwd` 2469 $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \ 2470 || AC_MSG_ERROR(failed) 2471 AC_MSG_RESULT(done) 2472 fi 2473fi 2474AC_SUBST(vpath_build) 2475 2476 2477AC_CONFIG_FILES([GNUmakefile src/Makefile.global]) 2478 2479AC_CONFIG_LINKS([ 2480 src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION} 2481 src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION} 2482 src/include/pg_config_os.h:src/include/port/${template}.h 2483 src/Makefile.port:src/makefiles/Makefile.${template} 2484]) 2485 2486if test "$PORTNAME" = "win32"; then 2487AC_CONFIG_COMMANDS([check_win32_symlinks],[ 2488# Links sometimes fail undetected on Mingw - 2489# so here we detect it and warn the user 2490for FILE in $CONFIG_LINKS 2491 do 2492 # test -e works for symlinks in the MinGW console 2493 test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand]) 2494 done 2495]) 2496fi 2497 2498AC_CONFIG_HEADERS([src/include/pg_config.h], 2499[ 2500# Update timestamp for pg_config.h (see Makefile.global) 2501echo >src/include/stamp-h 2502]) 2503 2504AC_CONFIG_HEADERS([src/include/pg_config_ext.h], 2505[ 2506# Update timestamp for pg_config_ext.h (see Makefile.global) 2507echo >src/include/stamp-ext-h 2508]) 2509 2510AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h], 2511 [echo >src/interfaces/ecpg/include/stamp-h]) 2512 2513AC_OUTPUT 2514