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configure.ac
2 637 строк
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Peter Eisentraut
Require ICU 55 or later
16 июл 2026, 13:03
16 июл 2026, 13:03
4854b23
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dnl Process this file with autoconf to produce a configure script. dnl configure.ac dnl dnl Developers, please strive to achieve this order: dnl dnl 0. Initialization and options processing dnl 1. Programs dnl 2. Libraries dnl 3. Header files dnl 4. Types dnl 5. Structures dnl 6. Compiler characteristics dnl 7. Functions, global variables dnl 8. System services dnl dnl Read the Autoconf manual for details. dnl m4_pattern_forbid(^PGAC_)dnl to catch undefined macros AC_INIT([PostgreSQL], [20devel], [pgsql-bugs@lists.postgresql.org], [], [https://www.postgresql.org/]) m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required. Untested combinations of 'autoconf' and PostgreSQL versions are not recommended. You can remove the check from 'configure.ac' but it is then your responsibility whether the result works or not.])]) AC_COPYRIGHT([Copyright (c) 1996-2026, PostgreSQL Global Development Group]) AC_CONFIG_SRCDIR([src/backend/access/common/heaptuple.c]) AC_CONFIG_AUX_DIR(config) AC_PREFIX_DEFAULT(/usr/local/pgsql) AC_DEFINE_UNQUOTED(CONFIGURE_ARGS, ["$ac_configure_args"], [Saved arguments from configure]) [PG_MAJORVERSION=`expr "$PACKAGE_VERSION" : '\([0-9][0-9]*\)'`] [PG_MINORVERSION=`expr "$PACKAGE_VERSION" : '.*\.\([0-9][0-9]*\)'`] test -n "$PG_MINORVERSION" || PG_MINORVERSION=0 AC_SUBST(PG_MAJORVERSION) AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major version as a string]) AC_DEFINE_UNQUOTED(PG_MAJORVERSION_NUM, $PG_MAJORVERSION, [PostgreSQL major version number]) AC_DEFINE_UNQUOTED(PG_MINORVERSION_NUM, $PG_MINORVERSION, [PostgreSQL minor version number]) PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version], [PG_VERSION="$PACKAGE_VERSION$withval"], [PG_VERSION="$PACKAGE_VERSION"]) AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string]) AC_CANONICAL_HOST template= AC_MSG_CHECKING([which template to use]) PGAC_ARG_REQ(with, template, [NAME], [override operating system template], [ case $withval in list) echo; ls "$srcdir/src/template"; exit;; *) if test -f "$srcdir/src/template/$with_template" ; then template=$withval else AC_MSG_ERROR(['$withval' is not a valid template name. Use 'list' for a list.]) fi;; esac ], [ # --with-template not given case $host_os in aix*) template=aix ;; cygwin*|msys*) template=cygwin ;; darwin*) template=darwin ;; dragonfly*) template=netbsd ;; freebsd*) template=freebsd ;; linux*|gnu*|k*bsd*-gnu) template=linux ;; mingw*) template=win32 ;; netbsd*) template=netbsd ;; openbsd*) template=openbsd ;; solaris*) template=solaris ;; esac if test x"$template" = x"" ; then AC_MSG_ERROR([[ ******************************************************************* PostgreSQL has apparently not been ported to your platform yet. To try a manual configuration, look into the src/template directory for a similar platform and use the '--with-template=' option. Please also contact <]AC_PACKAGE_BUGREPORT[> to see about rectifying this. Include the above 'checking host system type...' line. ******************************************************************* ]]) fi ]) AC_MSG_RESULT([$template]) PORTNAME=$template AC_SUBST(PORTNAME) # Default, works for most platforms, override in template file if needed DLSUFFIX=".so" ## ## Command line options ## # # Add non-standard directories to the include path # PGAC_ARG_REQ(with, includes, [DIRS], [look for additional header files in DIRS]) # # Add non-standard directories to the library search path # PGAC_ARG_REQ(with, libraries, [DIRS], [look for additional libraries in DIRS], [LIBRARY_DIRS=$withval]) PGAC_ARG_REQ(with, libs, [DIRS], [alternative spelling of --with-libraries], [LIBRARY_DIRS=$withval]) # # 64-bit integer date/time storage is now the only option, but to avoid # unnecessary breakage of build scripts, continue to accept an explicit # "--enable-integer-datetimes" switch. # PGAC_ARG_BOOL(enable, integer-datetimes, yes, [obsolete option, no longer supported], [], [AC_MSG_ERROR([--disable-integer-datetimes is no longer supported])]) # # NLS # AC_MSG_CHECKING([whether NLS is wanted]) PGAC_ARG_OPTARG(enable, nls, [LANGUAGES], [enable Native Language Support], [], [WANTED_LANGUAGES=$enableval], [AC_DEFINE(ENABLE_NLS, 1, [Define to 1 if you want National Language Support. (--enable-nls)])]) AC_MSG_RESULT([$enable_nls]) AC_SUBST(enable_nls) AC_SUBST(WANTED_LANGUAGES) # # Default port number (--with-pgport), default 5432 # AC_MSG_CHECKING([for default port number]) PGAC_ARG_REQ(with, pgport, [PORTNUM], [set default port number [5432]], [default_port=$withval], [default_port=5432]) AC_MSG_RESULT([$default_port]) # Need both of these because some places want an integer and some a string AC_DEFINE_UNQUOTED(DEF_PGPORT, ${default_port}, [Define to the default TCP port number on which the server listens and to which clients will try to connect. This can be overridden at run-time, but it's convenient if your clients have the right default compiled in. (--with-pgport=PORTNUM)]) AC_DEFINE_UNQUOTED(DEF_PGPORT_STR, "${default_port}", [Define to the default TCP port number as a string constant.]) AC_SUBST(default_port) # It's worth validating port; you can get very confusing errors otherwise if test x"$default_port" = x""; then AC_MSG_ERROR([invalid --with-pgport specification: empty string]) elif test ! x`echo "$default_port" | sed -e 's/[[0-9]]*//'` = x""; then AC_MSG_ERROR([invalid --with-pgport specification: must be a number]) elif test ! x`echo "$default_port" | sed -e 's/^0.//'` = x"$default_port"; then AC_MSG_ERROR([invalid --with-pgport specification: must not have leading 0]) elif test "$default_port" -lt "1" -o "$default_port" -gt "65535"; then AC_MSG_ERROR([invalid --with-pgport specification: must be between 1 and 65535]) fi # # '-rpath'-like feature can be disabled # PGAC_ARG_BOOL(enable, rpath, yes, [do not embed shared library search path in executables]) AC_SUBST(enable_rpath) # # --enable-debug adds -g to compiler flags # PGAC_ARG_BOOL(enable, debug, no, [build with debugging symbols (-g)]) AC_SUBST(enable_debug) # # --enable-profiling enables gcc profiling # PGAC_ARG_BOOL(enable, profiling, no, [build with profiling enabled ]) # # --enable-coverage enables generation of code coverage metrics with gcov # PGAC_ARG_BOOL(enable, coverage, no, [build with coverage testing instrumentation], [PGAC_PATH_PROGS(GCOV, gcov) if test -z "$GCOV"; then AC_MSG_ERROR([gcov not found]) fi PGAC_PATH_PROGS(LCOV, lcov) if test -z "$LCOV"; then AC_MSG_ERROR([lcov not found]) fi PGAC_PATH_PROGS(GENHTML, genhtml) if test -z "$GENHTML"; then AC_MSG_ERROR([genhtml not found]) fi]) AC_SUBST(enable_coverage) # # DTrace # PGAC_ARG_BOOL(enable, dtrace, no, [build with DTrace support], [PGAC_PATH_PROGS(DTRACE, dtrace) if test -z "$DTRACE"; then AC_MSG_ERROR([dtrace not found]) fi AC_SUBST(DTRACEFLAGS)]) AC_SUBST(enable_dtrace) # # TAP tests # PGAC_ARG_BOOL(enable, tap-tests, no, [enable TAP tests (requires Perl and IPC::Run)]) AC_SUBST(enable_tap_tests) AC_ARG_VAR(PG_TEST_EXTRA, [enable selected extra tests (overridden at runtime by PG_TEST_EXTRA environment variable)]) # # Injection points # PGAC_ARG_BOOL(enable, injection-points, no, [enable injection points (for testing)], [AC_DEFINE([USE_INJECTION_POINTS], 1, [Define to 1 to build with injection points. (--enable-injection-points)])]) AC_SUBST(enable_injection_points) # # Block size # AC_MSG_CHECKING([for block size]) PGAC_ARG_REQ(with, blocksize, [BLOCKSIZE], [set table block size in kB [8]], [blocksize=$withval], [blocksize=8]) case ${blocksize} in 1) BLCKSZ=1024;; 2) BLCKSZ=2048;; 4) BLCKSZ=4096;; 8) BLCKSZ=8192;; 16) BLCKSZ=16384;; 32) BLCKSZ=32768;; *) AC_MSG_ERROR([Invalid block size. Allowed values are 1,2,4,8,16,32.]) esac AC_MSG_RESULT([${blocksize}kB]) AC_DEFINE_UNQUOTED([BLCKSZ], ${BLCKSZ}, [ Size of a disk block --- this also limits the size of a tuple. You can set it bigger if you need bigger tuples (although TOAST should reduce the need to have large tuples, since fields can be spread across multiple tuples). BLCKSZ must be a power of 2. The maximum possible value of BLCKSZ is currently 2^15 (32768). This is determined by the 15-bit widths of the lp_off and lp_len fields in ItemIdData (see include/storage/itemid.h). Changing BLCKSZ requires an initdb. ]) # # Relation segment size # PGAC_ARG_REQ(with, segsize, [SEGSIZE], [set table segment size in GB [1]], [segsize=$withval], [segsize=1]) PGAC_ARG_REQ(with, segsize-blocks, [SEGSIZE_BLOCKS], [set table segment size in blocks [0]], [segsize_blocks=$withval], [segsize_blocks=0]) # If --with-segsize-blocks is non-zero, it is used, --with-segsize # otherwise. segsize-blocks is only really useful for developers wanting to # test segment related code. Warn if both are used. if test $segsize_blocks -ne 0 -a $segsize -ne 1; then AC_MSG_WARN([both --with-segsize and --with-segsize-blocks specified, --with-segsize-blocks wins]) fi AC_MSG_CHECKING([for segment size]) if test $segsize_blocks -eq 0; then # this expression is set up to avoid unnecessary integer overflow # blocksize is already guaranteed to be a factor of 1024 RELSEG_SIZE=`expr '(' 1024 / ${blocksize} ')' '*' ${segsize} '*' 1024` test $? -eq 0 || exit 1 AC_MSG_RESULT([${segsize}GB]) else RELSEG_SIZE=$segsize_blocks AC_MSG_RESULT([${RELSEG_SIZE} blocks]) fi AC_DEFINE_UNQUOTED([RELSEG_SIZE], ${RELSEG_SIZE}, [ RELSEG_SIZE is the maximum number of blocks allowed in one disk file. Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ; relations bigger than that are divided into multiple files. RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size. This is often 2 GB or 4GB in a 32-bit operating system, unless you have large file support enabled. By default, we make the limit 1 GB to avoid any possible integer-overflow problems within the OS. A limit smaller than necessary only means we divide a large relation into more chunks than necessary, so it seems best to err in the direction of a small limit. A power-of-2 value is recommended to save a few cycles in md.c, but is not absolutely required. Changing RELSEG_SIZE requires an initdb. ]) # # WAL block size # AC_MSG_CHECKING([for WAL block size]) PGAC_ARG_REQ(with, wal-blocksize, [BLOCKSIZE], [set WAL block size in kB [8]], [wal_blocksize=$withval], [wal_blocksize=8]) case ${wal_blocksize} in 1) XLOG_BLCKSZ=1024;; 2) XLOG_BLCKSZ=2048;; 4) XLOG_BLCKSZ=4096;; 8) XLOG_BLCKSZ=8192;; 16) XLOG_BLCKSZ=16384;; 32) XLOG_BLCKSZ=32768;; 64) XLOG_BLCKSZ=65536;; *) AC_MSG_ERROR([Invalid WAL block size. Allowed values are 1,2,4,8,16,32,64.]) esac AC_MSG_RESULT([${wal_blocksize}kB]) AC_DEFINE_UNQUOTED([XLOG_BLCKSZ], ${XLOG_BLCKSZ}, [ Size of a WAL file block. This need have no particular relation to BLCKSZ. XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O, XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O buffers, else direct I/O may fail. Changing XLOG_BLCKSZ requires an initdb. ]) # # C compiler # # If you don't specify a list of compilers to test, the AC_PROG_CC and # AC_PROG_CXX macros test for a long list of unsupported compilers. pgac_cc_list="gcc cc" pgac_cxx_list="g++ c++" AC_PROG_CC([$pgac_cc_list]) # Detect option needed for C11 # loosely modeled after code in later Autoconf versions AC_MSG_CHECKING([for $CC option to accept ISO C11]) AC_CACHE_VAL([pgac_cv_prog_cc_c11], [pgac_cv_prog_cc_c11=no pgac_save_CC=$CC for pgac_arg in '' '-std=gnu11' '-std=c11'; do CC="$pgac_save_CC $pgac_arg" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L # error "Compiler does not advertise C11 conformance" #endif]])], [[pgac_cv_prog_cc_c11=$pgac_arg]]) test x"$pgac_cv_prog_cc_c11" != x"no" && break done CC=$pgac_save_CC]) if test x"$pgac_cv_prog_cc_c11" = x"no"; then AC_MSG_RESULT([unsupported]) AC_MSG_ERROR([C compiler "$CC" does not support C11]) elif test x"$pgac_cv_prog_cc_c11" = x""; then AC_MSG_RESULT([none needed]) else AC_MSG_RESULT([$pgac_cv_prog_cc_c11]) CC="$CC $pgac_cv_prog_cc_c11" fi AC_PROG_CXX([$pgac_cxx_list]) # Check if it actually found a C++ compiler. AC_LANG_PUSH([C++]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [have_cxx=yes], [have_cxx=no]) AC_LANG_POP([C++]) AC_SUBST(have_cxx) if test "$have_cxx" = yes; then # Detect option needed for C++11 AC_MSG_CHECKING([for $CXX option to accept ISO C++11]) AC_CACHE_VAL([pgac_cv_prog_cxx_cxx11], [pgac_cv_prog_cxx_cxx11=no pgac_save_CXX=$CXX AC_LANG_PUSH([C++]) for pgac_arg in '' '-std=gnu++11' '-std=c++11'; do CXX="$pgac_save_CXX $pgac_arg" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if !defined __cplusplus || __cplusplus < 201103L # error "Compiler does not advertise C++11 conformance" #endif]])], [[pgac_cv_prog_cxx_cxx11=$pgac_arg]]) test x"$pgac_cv_prog_cxx_cxx11" != x"no" && break done AC_LANG_POP([C++]) CXX=$pgac_save_CXX]) if test x"$pgac_cv_prog_cxx_cxx11" = x"no"; then AC_MSG_RESULT([unsupported]) AC_MSG_WARN([C++ compiler "$CXX" does not support C++11]) have_cxx=no elif test x"$pgac_cv_prog_cxx_cxx11" = x""; then AC_MSG_RESULT([none needed]) else AC_MSG_RESULT([$pgac_cv_prog_cxx_cxx11]) CXX="$CXX $pgac_cv_prog_cxx_cxx11" fi fi # have_cxx # Check if it's Intel's compiler, which (usually) pretends to be gcc, # but has idiosyncrasies of its own. We assume icc will define # __INTEL_COMPILER regardless of CFLAGS. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [@%:@ifndef __INTEL_COMPILER choke me @%:@endif])], [ICC=yes], [ICC=no]) # # LLVM # # Checked early because subsequent tests depend on it. PGAC_ARG_BOOL(with, llvm, no, [build with LLVM based JIT support], [AC_DEFINE([USE_LLVM], 1, [Define to 1 to build with LLVM based JIT support. (--with-llvm)])]) AC_SUBST(with_llvm) dnl must use AS_IF here, else AC_REQUIRES inside PGAC_LLVM_SUPPORT malfunctions AS_IF([test "$with_llvm" = yes], [ PGAC_LLVM_SUPPORT() ]) # fi unset CFLAGS unset CXXFLAGS # # Read the template # . "$srcdir/src/template/$template" || exit # C[XX]FLAGS are selected so: # If the user specifies something in the environment, that is used. # else: If the template file set something, that is used. # else: If coverage was enabled, don't set anything. # else: If the compiler is GCC, then we use -O2. # else: If the compiler is something else, then we use -O, unless debugging. if test "$ac_env_CFLAGS_set" = set; then CFLAGS=$ac_env_CFLAGS_value elif test "${CFLAGS+set}" = set; then : # (keep what template set) elif test "$enable_coverage" = yes; then : # no optimization by default elif test "$GCC" = yes; then CFLAGS="-O2" else # if the user selected debug mode, don't use -O if test "$enable_debug" != yes; then CFLAGS="-O" fi fi if test "$ac_env_CXXFLAGS_set" = set; then CXXFLAGS=$ac_env_CXXFLAGS_value elif test "${CXXFLAGS+set}" = set; then : # (keep what template set) elif test "$enable_coverage" = yes; then : # no optimization by default elif test "$GCC" = yes; then CXXFLAGS="-O2" else # if the user selected debug mode, don't use -O if test "$enable_debug" != yes; then CXXFLAGS="-O" fi fi # When generating bitcode (for inlining) we always want to use -O2 # even when --enable-debug is specified. The bitcode is not going to # be used for line-by-line debugging, and JIT inlining doesn't work # without at least -O1 (otherwise clang will emit 'noinline' # attributes everywhere), which is bad for testing. Still allow the # environment to override if done explicitly. if test "$ac_env_BITCODE_CFLAGS_set" = set; then BITCODE_CFLAGS=$ac_env_BITCODE_CFLAGS_value else BITCODE_CFLAGS="-O2 $BITCODE_CFLAGS" fi if test "$ac_env_BITCODE_CXXFLAGS_set" = set; then BITCODE_CXXFLAGS=$ac_env_BITCODE_CXXFLAGS_value else BITCODE_CXXFLAGS="-O2 $BITCODE_CXXFLAGS" fi # C[XX]FLAGS we determined above will be added back at the end user_CFLAGS=$CFLAGS CFLAGS="" user_CXXFLAGS=$CXXFLAGS CXXFLAGS="" user_BITCODE_CFLAGS=$BITCODE_CFLAGS BITCODE_CFLAGS="" user_BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS BITCODE_CXXFLAGS="" # set CFLAGS_UNROLL_LOOPS and CFLAGS_VECTORIZE from the environment, if present if test "$ac_env_CFLAGS_UNROLL_LOOPS_set" = set; then CFLAGS_UNROLL_LOOPS=$ac_env_CFLAGS_UNROLL_LOOPS_value fi if test "$ac_env_CFLAGS_VECTORIZE_set" = set; then CFLAGS_VECTORIZE=$ac_env_CFLAGS_VECTORIZE_value fi # Some versions of GCC support some additional useful warning flags. # Check whether they are supported, and add them to CFLAGS if so. # ICC pretends to be GCC but it's lying; it doesn't support these flags, # but has its own. Also check other compiler-specific flags here. if test "$GCC" = yes -a "$ICC" = no; then CFLAGS="-Wall -Wmissing-prototypes -Wpointer-arith" CXXFLAGS="-Wall -Wpointer-arith" # These work in some but not all gcc versions save_CFLAGS=$CFLAGS PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement]) # -Wdeclaration-after-statement isn't applicable for C++. Specific C files # disable it, so AC_SUBST the negative form. PERMIT_DECLARATION_AFTER_STATEMENT= if test x"$save_CFLAGS" != x"$CFLAGS"; then PERMIT_DECLARATION_AFTER_STATEMENT=-Wno-declaration-after-statement fi AC_SUBST(PERMIT_DECLARATION_AFTER_STATEMENT) # Really don't want VLAs to be used PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla]) PGAC_PROG_CXX_CFLAGS_OPT([-Werror=vla]) # On macOS, complain about usage of symbols newer than the deployment target PGAC_PROG_CC_CFLAGS_OPT([-Werror=unguarded-availability-new]) PGAC_PROG_CXX_CFLAGS_OPT([-Werror=unguarded-availability-new]) PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-format-attribute]) PGAC_PROG_CXX_CFLAGS_OPT([-Wmissing-format-attribute]) PGAC_PROG_CC_CFLAGS_OPT([-Wold-style-declaration]) # -Wold-style-declaration is not applicable for C++ # To require fallthrough attribute annotations, use # -Wimplicit-fallthrough=5 with gcc and -Wimplicit-fallthrough with # clang. The latter is also accepted on gcc but does not enforce # attribute annotations, so test the former first. save_CFLAGS=$CFLAGS PGAC_PROG_CC_CFLAGS_OPT([-Wimplicit-fallthrough=5]) if test x"$save_CFLAGS" = x"$CFLAGS"; then PGAC_PROG_CC_CFLAGS_OPT([-Wimplicit-fallthrough]) fi save_CXXFLAGS=$CXXFLAGS PGAC_PROG_CXX_CFLAGS_OPT([-Wimplicit-fallthrough=5]) if test x"$save_CXXFLAGS" = x"$CXXFLAGS"; then PGAC_PROG_CXX_CFLAGS_OPT([-Wimplicit-fallthrough]) fi PGAC_PROG_CC_CFLAGS_OPT([-Wcast-function-type]) PGAC_PROG_CXX_CFLAGS_OPT([-Wcast-function-type]) PGAC_PROG_CC_CFLAGS_OPT([-Wshadow=compatible-local]) PGAC_PROG_CXX_CFLAGS_OPT([-Wshadow=compatible-local]) # This was included in -Wall/-Wformat in older GCC versions PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security]) PGAC_PROG_CXX_CFLAGS_OPT([-Wformat-security]) # gcc 14+, clang for a while # (Supported in C++ by clang but not gcc. For consistency, omit in C++.) save_CFLAGS=$CFLAGS PGAC_PROG_CC_CFLAGS_OPT([-Wmissing-variable-declarations]) PERMIT_MISSING_VARIABLE_DECLARATIONS= if test x"$save_CFLAGS" != x"$CFLAGS"; then PERMIT_MISSING_VARIABLE_DECLARATIONS=-Wno-missing-variable-declarations fi AC_SUBST(PERMIT_MISSING_VARIABLE_DECLARATIONS) # Disable strict-aliasing rules; needed for gcc 3.3+ PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing]) PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing]) # Disable optimizations that assume no overflow; needed for gcc 4.3+ PGAC_PROG_CC_CFLAGS_OPT([-fwrapv]) PGAC_PROG_CXX_CFLAGS_OPT([-fwrapv]) # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+ PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard]) PGAC_PROG_CXX_CFLAGS_OPT([-fexcess-precision=standard]) # Optimization flags for specific files that benefit from loop unrolling PGAC_PROG_CC_VAR_OPT(CFLAGS_UNROLL_LOOPS, [-funroll-loops]) # Optimization flags for specific files that benefit from vectorization PGAC_PROG_CC_VAR_OPT(CFLAGS_VECTORIZE, [-ftree-vectorize]) # # The following tests want to suppress various unhelpful warnings by adding # -Wno-foo switches. But gcc won't complain about unrecognized -Wno-foo # switches, so we have to test for the positive form and if that works, # add the negative form. Note that tests of this form typically need to # be duplicated in the BITCODE_CFLAGS setup stanza below. # # Suppress clang's unhelpful unused-command-line-argument warnings. NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-unused-command-line-argument" fi # Remove clang 12+'s compound-token-split-by-macro, as this causes a lot # of warnings when building plperl because of usages in the Perl headers. NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wcompound-token-split-by-macro]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-compound-token-split-by-macro" fi # Similarly disable useless truncation warnings from gcc 8+ NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-format-truncation" fi NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-stringop-truncation" fi # Suppress clang 16's strict warnings about function casts NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wcast-function-type-strict]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-cast-function-type-strict" fi elif test "$ICC" = yes; then # Intel's compiler has a bug/misoptimization in checking for # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS. PGAC_PROG_CC_CFLAGS_OPT([-mp1]) PGAC_PROG_CXX_CFLAGS_OPT([-mp1]) # Make sure strict aliasing is off (though this is said to be the default) PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing]) PGAC_PROG_CXX_CFLAGS_OPT([-fno-strict-aliasing]) fi # If the compiler knows how to hide symbols, add the switch needed for that to # CFLAGS_SL_MODULE and define HAVE_VISIBILITY_ATTRIBUTE. # # This is done separately from the above because -fvisibility is supported by # quite a few different compilers, making the required repetition bothersome. # # We might need to add a separate test to check if # __attribute__((visibility("hidden"))) is supported, if we encounter a # compiler that supports one of the supported variants of -fvisibility=hidden # but uses a different syntax to mark a symbol as exported. if test "$GCC" = yes; then PGAC_PROG_CC_VAR_OPT(CFLAGS_SL_MODULE, [-fvisibility=hidden]) # For C++ we additionally want -fvisibility-inlines-hidden PGAC_PROG_VARCXX_VARFLAGS_OPT(CXX, CXXFLAGS_SL_MODULE, [-fvisibility=hidden]) PGAC_PROG_VARCXX_VARFLAGS_OPT(CXX, CXXFLAGS_SL_MODULE, [-fvisibility-inlines-hidden]) have_visibility_attribute=$pgac_cv_prog_CC_cflags__fvisibility_hidden fi if test "$have_visibility_attribute" = "yes"; then AC_DEFINE([HAVE_VISIBILITY_ATTRIBUTE], 1, [Define to 1 if your compiler knows the visibility("hidden") attribute.]) fi AC_SUBST(CFLAGS_UNROLL_LOOPS) AC_SUBST(CFLAGS_VECTORIZE) AC_SUBST(CFLAGS_SL_MODULE) AC_SUBST(CXXFLAGS_SL_MODULE) # Determine flags used to emit bitcode for JIT inlining. # 1. We must duplicate any behaviour-changing compiler flags used above, # to keep compatibility with the compiler used for normal Postgres code. # 2. We don't bother to duplicate extra-warnings switches --- seeing a # warning in the main build is enough. # 3. But we must duplicate -Wno-warning flags, else we'll see those anyway. if test "$with_llvm" = yes ; then CLANGXX="$CLANG -xc++" PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fno-strict-aliasing]) PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fno-strict-aliasing]) PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fwrapv]) PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fwrapv]) PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-fexcess-precision=standard]) PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANGXX, BITCODE_CXXFLAGS, [-fexcess-precision=standard]) # Ideally bitcode should perhaps match $CC's use, or not, of outline atomic # functions, but for now we err on the side of suppressing them in bitcode, # because we can't assume they're available at runtime. This affects aarch64 # builds using the basic armv8-a ISA without LSE support. PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANG, BITCODE_CFLAGS, [-mno-outline-atomics]) PGAC_PROG_VARCXX_VARFLAGS_OPT(CLANG, BITCODE_CXXFLAGS, [-mno-outline-atomics]) NOT_THE_CFLAGS="" PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wunused-command-line-argument]) if test -n "$NOT_THE_CFLAGS"; then BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-unused-command-line-argument" fi NOT_THE_CFLAGS="" PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wcompound-token-split-by-macro]) if test -n "$NOT_THE_CFLAGS"; then BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-compound-token-split-by-macro" fi NOT_THE_CFLAGS="" PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wformat-truncation]) if test -n "$NOT_THE_CFLAGS"; then BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-format-truncation" fi NOT_THE_CFLAGS="" PGAC_PROG_VARCC_VARFLAGS_OPT(CLANG, NOT_THE_CFLAGS, [-Wstringop-truncation]) if test -n "$NOT_THE_CFLAGS"; then BITCODE_CFLAGS="$BITCODE_CFLAGS -Wno-stringop-truncation" fi fi # supply -g if --enable-debug if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then CFLAGS="$CFLAGS -g" fi if test "$enable_debug" = yes && test "$ac_cv_prog_cxx_g" = yes; then CXXFLAGS="$CXXFLAGS -g" fi # enable code coverage if --enable-coverage if test "$enable_coverage" = yes; then if test "$GCC" = yes; then CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage" CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage" else AC_MSG_ERROR([--enable-coverage is supported only when using GCC]) fi fi # enable profiling if --enable-profiling if test "$enable_profiling" = yes && test "$ac_cv_prog_cc_g" = yes; then if test "$GCC" = yes; then AC_DEFINE([PROFILE_PID_DIR], 1, [Define to 1 to allow profiling output to be saved separately for each process.]) CFLAGS="$CFLAGS -pg $PLATFORM_PROFILE_FLAGS" CXXFLAGS="$CXXFLAGS -pg $PLATFORM_PROFILE_FLAGS" else AC_MSG_ERROR([--enable-profiling is supported only when using GCC]) fi fi # On Solaris, we need these #defines to get POSIX-conforming versions # of many interfaces (sigwait, getpwuid_r, shmdt, ...). if test "$PORTNAME" = "solaris"; then CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS" fi # We already have this in Makefile.win32, but configure needs it too if test "$PORTNAME" = "win32"; then CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32" fi # Now that we're done automatically adding stuff to C[XX]FLAGS, put back the # user-specified flags (if any) at the end. This lets users override # the automatic additions. CFLAGS="$CFLAGS $user_CFLAGS" CXXFLAGS="$CXXFLAGS $user_CXXFLAGS" BITCODE_CFLAGS="$BITCODE_CFLAGS $user_BITCODE_CFLAGS" BITCODE_CXXFLAGS="$BITCODE_CXXFLAGS $user_BITCODE_CXXFLAGS" AC_SUBST(BITCODE_CFLAGS) AC_SUBST(BITCODE_CXXFLAGS) # The template file must set up CFLAGS_SL; we don't support user override AC_SUBST(CFLAGS_SL) # Check if the compiler still works with the final flag settings # (note, we're not checking that for CXX, which is optional) AC_MSG_CHECKING([whether the C compiler still works]) AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_ERROR([cannot proceed])]) # Defend against clang being used on x86-32 without SSE2 enabled. As current # versions of clang do not understand -fexcess-precision=standard, the use of # x87 floating point operations leads to problems like isinf possibly returning # false for a value that is infinite when converted from the 80bit register to # the 8byte memory representation. # # Only perform the test if the compiler doesn't understand # -fexcess-precision=standard, that way a potentially fixed compiler will work # automatically. if test "$pgac_cv_prog_CC_cflags__fexcess_precision_standard" = no; then AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ @%:@if defined(__clang__) && defined(__i386__) && !defined(__SSE2_MATH__) choke me @%:@endif ])], [], [AC_MSG_ERROR([Compiling PostgreSQL with clang, on 32bit x86, requires SSE2 support. Use -msse2 or use gcc.])]) fi AC_PROG_CPP AC_SUBST(GCC) AC_SUBST(DLSUFFIX)dnl AC_DEFINE_UNQUOTED([DLSUFFIX], ["$DLSUFFIX"], [Define to the file name extension of dynamically-loadable modules.]) # # Set up pkg_config in case we need it below # PKG_PROG_PKG_CONFIG # # Automatic dependency tracking # PGAC_ARG_BOOL(enable, depend, no, [turn on automatic dependency tracking], [autodepend=yes]) AC_SUBST(autodepend) # # Enable assert checks # PGAC_ARG_BOOL(enable, cassert, no, [enable assertion checks (for debugging)], [AC_DEFINE([USE_ASSERT_CHECKING], 1, [Define to 1 to build with assertion checks. (--enable-cassert)])]) # # Include directories # ac_save_IFS=$IFS IFS="${IFS}${PATH_SEPARATOR}" # SRCH_INC comes from the template file for dir in $with_includes $SRCH_INC; do if test -d "$dir"; then INCLUDES="$INCLUDES -I$dir" else AC_MSG_WARN([*** Include directory $dir does not exist.]) fi done IFS=$ac_save_IFS # # Library directories # ac_save_IFS=$IFS IFS="${IFS}${PATH_SEPARATOR}" # LIBRARY_DIRS comes from command line, SRCH_LIB from template file. for dir in $LIBRARY_DIRS $SRCH_LIB; do if test -d "$dir"; then LIBDIRS="$LIBDIRS -L$dir" else AC_MSG_WARN([*** Library directory $dir does not exist.]) fi done IFS=$ac_save_IFS # # ICU # AC_MSG_CHECKING([whether to build with ICU support]) PGAC_ARG_BOOL(with, icu, yes, [build without ICU support], [AC_DEFINE([USE_ICU], 1, [Define to build with ICU support. (--with-icu)])]) AC_MSG_RESULT([$with_icu]) AC_SUBST(with_icu) if test "$with_icu" = yes; then PKG_CHECK_MODULES(ICU, icu-uc >= 55 icu-i18n) fi # # Optionally build Tcl modules (PL/Tcl) # AC_MSG_CHECKING([whether to build with Tcl]) PGAC_ARG_BOOL(with, tcl, no, [build Tcl modules (PL/Tcl)]) AC_MSG_RESULT([$with_tcl]) AC_SUBST([with_tcl]) # We see if the path to the Tcl/Tk configuration scripts is specified. # This will override the use of tclsh to find the paths to search. PGAC_ARG_REQ(with, tclconfig, [DIR], [tclConfig.sh is in DIR]) # # Optionally build Perl modules (PL/Perl) # AC_MSG_CHECKING([whether to build Perl modules]) PGAC_ARG_BOOL(with, perl, no, [build Perl modules (PL/Perl)]) AC_MSG_RESULT([$with_perl]) AC_SUBST(with_perl) # # Optionally build Python modules (PL/Python) # AC_MSG_CHECKING([whether to build Python modules]) PGAC_ARG_BOOL(with, python, no, [build Python modules (PL/Python)]) AC_MSG_RESULT([$with_python]) AC_SUBST(with_python) # # GSSAPI # AC_MSG_CHECKING([whether to build with GSSAPI support]) PGAC_ARG_BOOL(with, gssapi, no, [build with GSSAPI support], [ AC_DEFINE(ENABLE_GSS, 1, [Define to build with GSSAPI support. (--with-gssapi)]) krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab" ]) AC_MSG_RESULT([$with_gssapi]) AC_SUBST(with_gssapi) AC_SUBST(krb_srvtab) # # Kerberos configuration parameters # PGAC_ARG_REQ(with, krb-srvnam, [NAME], [default service principal name in Kerberos (GSSAPI) [postgres]], [], [with_krb_srvnam="postgres"]) AC_SUBST(with_krb_srvnam) AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"], [Define to the name of the default PostgreSQL service principal in Kerberos (GSSAPI). (--with-krb-srvnam=NAME)]) # # PAM # AC_MSG_CHECKING([whether to build with PAM support]) PGAC_ARG_BOOL(with, pam, no, [build with PAM support], [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])]) AC_MSG_RESULT([$with_pam]) # # BSD AUTH # AC_MSG_CHECKING([whether to build with BSD Authentication support]) PGAC_ARG_BOOL(with, bsd-auth, no, [build with BSD Authentication support], [AC_DEFINE([USE_BSD_AUTH], 1, [Define to 1 to build with BSD Authentication support. (--with-bsd-auth)])]) AC_MSG_RESULT([$with_bsd_auth]) # # LDAP # AC_MSG_CHECKING([whether to build with LDAP support]) PGAC_ARG_BOOL(with, ldap, no, [build with LDAP support], [AC_DEFINE([USE_LDAP], 1, [Define to 1 to build with LDAP support. (--with-ldap)])]) AC_MSG_RESULT([$with_ldap]) AC_SUBST(with_ldap) # # Bonjour # AC_MSG_CHECKING([whether to build with Bonjour support]) PGAC_ARG_BOOL(with, bonjour, no, [build with Bonjour support], [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])]) AC_MSG_RESULT([$with_bonjour]) # # SELinux # AC_MSG_CHECKING([whether to build with SELinux support]) PGAC_ARG_BOOL(with, selinux, no, [build with SELinux support]) AC_SUBST(with_selinux) AC_MSG_RESULT([$with_selinux]) # # Systemd # AC_MSG_CHECKING([whether to build with systemd support]) PGAC_ARG_BOOL(with, systemd, no, [build with systemd support], [AC_DEFINE([USE_SYSTEMD], 1, [Define to build with systemd support. (--with-systemd)])]) AC_SUBST(with_systemd) AC_MSG_RESULT([$with_systemd]) # # Readline # PGAC_ARG_BOOL(with, readline, yes, [do not use GNU Readline nor BSD Libedit for editing]) # readline on MinGW has problems with backslashes in psql and other bugs. # This is particularly a problem with non-US code pages. # Therefore disable its use until we understand the cause. 2004-07-20 if test "$PORTNAME" = "win32"; then if test "$with_readline" = yes; then AC_MSG_WARN([*** Readline does not work on MinGW --- disabling]) with_readline=no fi fi AC_SUBST(with_readline) # # Prefer libedit # PGAC_ARG_BOOL(with, libedit-preferred, no, [prefer BSD Libedit over GNU Readline]) # # liburing # AC_MSG_CHECKING([whether to build with liburing support]) PGAC_ARG_BOOL(with, liburing, no, [build with io_uring support, for asynchronous I/O], [AC_DEFINE([USE_LIBURING], 1, [Define to build with io_uring support. (--with-liburing)])]) AC_MSG_RESULT([$with_liburing]) AC_SUBST(with_liburing) if test "$with_liburing" = yes; then PKG_CHECK_MODULES(LIBURING, liburing) fi # # UUID library # # There are at least three UUID libraries in common use: the FreeBSD/NetBSD # library, the e2fsprogs libuuid (now part of util-linux-ng), and the OSSP # UUID library. More than one of these might be present on a given platform, # so we make the user say which one she wants. # PGAC_ARG_REQ(with, uuid, [LIB], [build contrib/uuid-ossp using LIB (bsd,e2fs,ossp)]) if test x"$with_uuid" = x"" ; then with_uuid=no fi PGAC_ARG_BOOL(with, ossp-uuid, no, [obsolete spelling of --with-uuid=ossp]) if test "$with_ossp_uuid" = yes ; then with_uuid=ossp fi if test "$with_uuid" != no ; then if test "$with_uuid" = bsd ; then AC_DEFINE([HAVE_UUID_BSD], 1, [Define to 1 if you have BSD UUID support.]) elif test "$with_uuid" = e2fs ; then AC_DEFINE([HAVE_UUID_E2FS], 1, [Define to 1 if you have E2FS UUID support.]) elif test "$with_uuid" = ossp ; then AC_DEFINE([HAVE_UUID_OSSP], 1, [Define to 1 if you have OSSP UUID support.]) else AC_MSG_ERROR([--with-uuid must specify one of bsd, e2fs, or ossp]) fi fi AC_SUBST(with_uuid) # # libcurl # AC_MSG_CHECKING([whether to build with libcurl support]) PGAC_ARG_BOOL(with, libcurl, no, [build with libcurl support], [AC_DEFINE([USE_LIBCURL], 1, [Define to 1 to build with libcurl support. (--with-libcurl)])]) AC_MSG_RESULT([$with_libcurl]) AC_SUBST(with_libcurl) if test "$with_libcurl" = yes ; then # Check for libcurl 7.61.0 or higher (corresponding to RHEL8 and the ability # to explicitly set TLS 1.3 ciphersuites). PKG_CHECK_MODULES(LIBCURL, [libcurl >= 7.61.0]) # Curl's flags are kept separate from the standard CPPFLAGS/LDFLAGS. We use # them only for libpq-oauth. LIBCURL_CPPFLAGS= LIBCURL_LDFLAGS= # We only care about -I, -D, and -L switches. Note that -lcurl will be added # to LIBCURL_LDLIBS by PGAC_CHECK_LIBCURL, below. for pgac_option in $LIBCURL_CFLAGS; do case $pgac_option in -I*|-D*) LIBCURL_CPPFLAGS="$LIBCURL_CPPFLAGS $pgac_option";; esac done for pgac_option in $LIBCURL_LIBS; do case $pgac_option in -L*) LIBCURL_LDFLAGS="$LIBCURL_LDFLAGS $pgac_option";; esac done AC_SUBST(LIBCURL_CPPFLAGS) AC_SUBST(LIBCURL_LDFLAGS) # OAuth requires python for testing if test "$with_python" != yes; then AC_MSG_WARN([*** OAuth support tests require --with-python to run]) fi fi # # libnuma # AC_MSG_CHECKING([whether to build with libnuma support]) PGAC_ARG_BOOL(with, libnuma, no, [build with libnuma support], [AC_DEFINE([USE_LIBNUMA], 1, [Define to build with NUMA support. (--with-libnuma)])]) AC_MSG_RESULT([$with_libnuma]) AC_SUBST(with_libnuma) if test "$with_libnuma" = yes ; then AC_CHECK_LIB(numa, numa_available, [], [AC_MSG_ERROR([library 'libnuma' is required for NUMA support])]) PKG_CHECK_MODULES(LIBNUMA, numa) fi # # XML # AC_MSG_CHECKING([whether to build with XML support]) PGAC_ARG_BOOL(with, libxml, no, [build with XML support], [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])]) AC_MSG_RESULT([$with_libxml]) AC_SUBST(with_libxml) if test "$with_libxml" = yes ; then # Check pkg-config, then xml2-config. But for backwards compatibility, # setting XML2_CONFIG overrides pkg-config. AC_ARG_VAR(XML2_CONFIG, [path to xml2-config utility])dnl have_libxml2_pkg_config=no if test -z "$XML2_CONFIG" -a -n "$PKG_CONFIG"; then PKG_CHECK_MODULES(XML2, [libxml-2.0 >= 2.6.23], [have_libxml2_pkg_config=yes], [# do nothing]) fi if test "$have_libxml2_pkg_config" = no ; then PGAC_PATH_PROGS(XML2_CONFIG, xml2-config) if test -n "$XML2_CONFIG"; then XML2_CFLAGS=`$XML2_CONFIG --cflags` XML2_LIBS=`$XML2_CONFIG --libs` fi fi # Note the user could also set XML2_CFLAGS/XML2_LIBS directly for pgac_option in $XML2_CFLAGS; do case $pgac_option in -I*|-D*) INCLUDES="$INCLUDES $pgac_option";; esac done for pgac_option in $XML2_LIBS; do case $pgac_option in -L*) LIBDIRS="$LIBDIRS $pgac_option";; esac done fi # # XSLT # PGAC_ARG_BOOL(with, libxslt, no, [use XSLT support when building contrib/xml2], [AC_DEFINE([USE_LIBXSLT], 1, [Define to 1 to use XSLT support when building contrib/xml2. (--with-libxslt)])]) AC_SUBST(with_libxslt) # # tzdata # PGAC_ARG_REQ(with, system-tzdata, [DIR], [use system time zone data in DIR]) AC_SUBST(with_system_tzdata) # # Zlib # PGAC_ARG_BOOL(with, zlib, yes, [do not use Zlib]) AC_SUBST(with_zlib) # # LZ4 # AC_MSG_CHECKING([whether to build with LZ4 support]) PGAC_ARG_BOOL(with, lz4, no, [build with LZ4 support], [AC_DEFINE([USE_LZ4], 1, [Define to 1 to build with LZ4 support. (--with-lz4)])]) AC_MSG_RESULT([$with_lz4]) AC_SUBST(with_lz4) if test "$with_lz4" = yes; then PKG_CHECK_MODULES(LZ4, liblz4) # We only care about -I, -D, and -L switches; # note that -llz4 will be added by AC_CHECK_LIB below. for pgac_option in $LZ4_CFLAGS; do case $pgac_option in -I*|-D*) INCLUDES="$INCLUDES $pgac_option";; esac done for pgac_option in $LZ4_LIBS; do case $pgac_option in -L*) LIBDIRS="$LIBDIRS $pgac_option";; esac done fi # # ZSTD # AC_MSG_CHECKING([whether to build with ZSTD support]) PGAC_ARG_BOOL(with, zstd, no, [build with ZSTD support], [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with ZSTD support. (--with-zstd)])]) AC_MSG_RESULT([$with_zstd]) AC_SUBST(with_zstd) if test "$with_zstd" = yes; then PKG_CHECK_MODULES(ZSTD, libzstd >= 1.4.0) # We only care about -I, -D, and -L switches; # note that -lzstd will be added by AC_CHECK_LIB below. for pgac_option in $ZSTD_CFLAGS; do case $pgac_option in -I*|-D*) INCLUDES="$INCLUDES $pgac_option";; esac done for pgac_option in $ZSTD_LIBS; do case $pgac_option in -L*) LIBDIRS="$LIBDIRS $pgac_option";; esac done fi # # Assignments # CPPFLAGS="$CPPFLAGS $INCLUDES" LDFLAGS="$LDFLAGS $LIBDIRS" AC_ARG_VAR(LDFLAGS_EX, [extra linker flags for linking executables only]) AC_ARG_VAR(LDFLAGS_SL, [extra linker flags for linking shared libraries only]) PGAC_CHECK_STRIP AC_CHECK_TOOL(AR, ar, ar) if test "$PORTNAME" = "win32"; then AC_CHECK_TOOL(WINDRES, windres, windres) fi AC_PROG_INSTALL # When Autoconf chooses install-sh as install program it tries to generate # a relative path to it in each makefile where it substitutes it. This clashes # with our Makefile.global concept. This workaround helps. case $INSTALL in *install-sh*) install_bin='';; *) install_bin=$INSTALL;; esac AC_SUBST(install_bin) PGAC_PATH_PROGS(TAR, tar) AC_PROG_LN_S AC_PROG_MKDIR_P # When Autoconf chooses install-sh as mkdir -p program it tries to generate # a relative path to it in each makefile where it substitutes it. This clashes # with our Makefile.global concept. This workaround helps. case $MKDIR_P in *install-sh*) MKDIR_P='\${SHELL} \${top_srcdir}/config/install-sh -c -d';; esac AC_PATH_PROG(NM, nm) AC_SUBST(NM) PGAC_PATH_BISON PGAC_PATH_FLEX PGAC_PATH_PERL if test "$with_perl" = yes; then if test -z "$PERL"; then AC_MSG_ERROR([Perl not found]) fi PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib]) if test "$perl_useshrplib" != yes && test "$perl_useshrplib" != true; then AC_MSG_ERROR([cannot build PL/Perl because libperl is not a shared library You might have to rebuild your Perl installation. Refer to the documentation for details. Use --without-perl to disable building PL/Perl.]) fi # On most platforms, archlibexp is also where the Perl include files live ... perl_includespec="-I$perl_archlibexp/CORE" # ... but on newer macOS versions, we must use -iwithsysroot to look # under $PG_SYSROOT if test \! -f "$perl_archlibexp/CORE/perl.h" ; then if test -f "$PG_SYSROOT$perl_archlibexp/CORE/perl.h" ; then perl_includespec="-iwithsysroot $perl_archlibexp/CORE" fi fi AC_SUBST(perl_includespec)dnl PGAC_CHECK_PERL_EMBED_CCFLAGS PGAC_CHECK_PERL_EMBED_LDFLAGS fi if test "$with_python" = yes; then PGAC_PATH_PYTHON PGAC_CHECK_PYTHON_EMBED_SETUP fi if test x"$cross_compiling" = x"yes" && test -z "$with_system_tzdata"; then PGAC_PATH_PROGS(ZIC, zic) if test -z "$ZIC"; then AC_MSG_ERROR([ When cross-compiling, either use the option --with-system-tzdata to use existing time-zone data, or set the environment variable ZIC to a zic program to use during the build.]) fi fi # # Pthreads # # For each platform, we need to know about any special compile and link # libraries, and whether the normal C function names are thread-safe. # WIN32 doesn't need the pthread tests; it always uses threads # # These tests are run before the library-tests, because linking with the # other libraries can pull in the pthread functions as a side-effect. We # want to use the -pthread or similar flags directly, and not rely on # the side-effects of linking with some other library. dnl note: We have to use AS_IF here rather than plain if. The AC_CHECK_HEADER dnl invocation below is the first one in the script, and autoconf generates dnl additional code for that, which must not be inside the if-block. AS_IF dnl knows how to do that. AS_IF([test "$PORTNAME" != "win32"], [ # then AX_PTHREAD # set thread flags # Some platforms use these, so just define them. They can't hurt if they # are not supported. PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE" # Check for *_r functions _CFLAGS="$CFLAGS" _LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$LIBS $PTHREAD_LIBS" AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([ pthread.h not found])]) AC_CHECK_FUNCS([strerror_r]) # Do test here with the proper thread flags PGAC_FUNC_STRERROR_R_INT CFLAGS="$_CFLAGS" LIBS="$_LIBS" ], [ # else # do not use values from template file PTHREAD_CFLAGS= PTHREAD_LIBS= ]) # fi AC_SUBST(PTHREAD_CFLAGS) AC_SUBST(PTHREAD_LIBS) ## ## Libraries ## ## Most libraries are included only if they demonstrably provide a function ## we need, but libm is an exception: always include it, because there are ## too many compilers that play cute optimization games that will break ## probes for standard functions such as pow(). ## AC_CHECK_LIB(m, main) AC_SEARCH_LIBS(setproctitle, util) # gcc/clang's sanitizer helper library provides dlopen but not dlsym, thus # when enabling asan the dlopen check doesn't notice that -ldl is actually # required. Just checking for dlsym() ought to suffice. AC_SEARCH_LIBS(dlsym, dl) AC_SEARCH_LIBS(socket, [socket ws2_32]) AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt]) AC_SEARCH_LIBS(shm_open, rt) AC_SEARCH_LIBS(shm_unlink, rt) AC_SEARCH_LIBS(clock_gettime, rt) # Cygwin: AC_SEARCH_LIBS(shmget, cygipc) # *BSD: AC_SEARCH_LIBS(backtrace_symbols, execinfo) AC_SEARCH_LIBS(pthread_barrier_wait, pthread) if test "$with_readline" = yes; then PGAC_CHECK_READLINE if test x"$pgac_cv_check_readline" = x"no"; then AC_MSG_ERROR([readline library not found If you have readline already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable readline support.]) fi fi if test "$with_zlib" = yes; then AC_CHECK_LIB(z, inflate, [], [AC_MSG_ERROR([zlib library not found If you have zlib already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-zlib to disable zlib support.])]) fi if test "$with_libcurl" = yes ; then PGAC_CHECK_LIBCURL fi if test "$with_gssapi" = yes ; then if test "$PORTNAME" != "win32"; then AC_SEARCH_LIBS(gss_store_cred_into, [gssapi_krb5 gss 'gssapi -lkrb5 -lcrypto'], [], [AC_MSG_ERROR([could not find function 'gss_store_cred_into' required for GSSAPI])]) else LIBS="$LIBS -lgssapi32" fi fi # # SSL Library # # There is currently only one supported SSL/TLS library: OpenSSL. # PGAC_ARG_REQ(with, ssl, [LIB], [use LIB for SSL/TLS support (openssl)]) if test x"$with_ssl" = x"" ; then with_ssl=no fi PGAC_ARG_BOOL(with, openssl, no, [obsolete spelling of --with-ssl=openssl]) if test "$with_openssl" = yes ; then with_ssl=openssl fi if test "$with_ssl" = openssl ; then dnl Order matters! # Minimum required OpenSSL version is 1.1.1 AC_DEFINE(OPENSSL_API_COMPAT, [0x10101000L], [Define to the OpenSSL API version in use. This avoids deprecation warnings from newer OpenSSL versions.]) AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])]) AC_CHECK_LIB(ssl, SSL_new, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])]) # Functions introduced in OpenSSL 1.1.1. AC_CHECK_FUNCS([SSL_CTX_set_ciphersuites], [], [AC_MSG_ERROR([OpenSSL version >= 1.1.1 is required for SSL support])]) # Function introduced in OpenSSL 1.0.2, not in LibreSSL. AC_CHECK_FUNCS([SSL_CTX_set_cert_cb]) # Function introduced in OpenSSL 1.1.1, not in LibreSSL. AC_CHECK_FUNCS([X509_get_signature_info SSL_CTX_set_num_tickets SSL_CTX_set_keylog_callback SSL_CTX_set_client_hello_cb]) AC_DEFINE([USE_OPENSSL], 1, [Define to 1 to build with OpenSSL support. (--with-ssl=openssl)]) elif test "$with_ssl" != no ; then AC_MSG_ERROR([--with-ssl must specify openssl]) fi AC_SUBST(with_ssl) if test "$with_pam" = yes ; then AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])]) fi if test "$with_libxml" = yes ; then AC_CHECK_LIB(xml2, xmlSaveToBuffer, [], [AC_MSG_ERROR([library 'xml2' (version >= 2.6.23) is required for XML support])]) fi if test "$with_libxslt" = yes ; then AC_CHECK_LIB(xslt, xsltCleanupGlobals, [], [AC_MSG_ERROR([library 'xslt' is required for XSLT support])]) fi if test "$with_liburing" = yes; then _LIBS="$LIBS" LIBS="$LIBURING_LIBS $LIBS" AC_CHECK_FUNCS([io_uring_queue_init_mem]) LIBS="$_LIBS" fi if test "$with_lz4" = yes ; then AC_CHECK_LIB(lz4, LZ4_compress_default, [], [AC_MSG_ERROR([library 'lz4' is required for LZ4 support])]) fi if test "$with_zstd" = yes ; then AC_CHECK_LIB(zstd, ZSTD_compress, [], [AC_MSG_ERROR([library 'zstd' is required for ZSTD support])]) fi # Note: We can test for libldap_r only after we know PTHREAD_LIBS; # also, on AIX, we may need to have openssl in LIBS for this step. if test "$with_ldap" = yes ; then _LIBS="$LIBS" if test "$PORTNAME" != "win32"; then AC_CHECK_LIB(ldap, ldap_bind, [], [AC_MSG_ERROR([library 'ldap' is required for LDAP])], [$EXTRA_LDAP_LIBS]) LDAP_LIBS_BE="-lldap $EXTRA_LDAP_LIBS" # This test is carried out against libldap. AC_CHECK_FUNCS([ldap_initialize]) # The separate ldap_r library only exists in OpenLDAP < 2.5, and if we # have 2.5 or later, we shouldn't even probe for ldap_r (we might find a # library from a separate OpenLDAP installation). The most reliable # way to check that is to check for a function introduced in 2.5. AC_CHECK_FUNC([ldap_verify_credentials], [thread_safe_libldap=yes], [thread_safe_libldap=no]) if test "$thread_safe_libldap" = no; then # Use ldap_r for FE if available, else assume ldap is thread-safe. # On some platforms ldap_r fails to link without PTHREAD_LIBS. LIBS="$_LIBS" AC_CHECK_LIB(ldap_r, ldap_bind, [LDAP_LIBS_FE="-lldap_r $EXTRA_LDAP_LIBS"], [LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS"], [$PTHREAD_CFLAGS $PTHREAD_LIBS $EXTRA_LDAP_LIBS]) else LDAP_LIBS_FE="-lldap $EXTRA_LDAP_LIBS" fi else AC_CHECK_LIB(wldap32, ldap_bind, [], [AC_MSG_ERROR([library 'wldap32' is required for LDAP])]) LDAP_LIBS_FE="-lwldap32" LDAP_LIBS_BE="-lwldap32" fi LIBS="$_LIBS" fi AC_SUBST(LDAP_LIBS_FE) AC_SUBST(LDAP_LIBS_BE) # for contrib/sepgsql if test "$with_selinux" = yes; then AC_CHECK_LIB(selinux, security_compute_create_name, [], [AC_MSG_ERROR([library 'libselinux', version 2.1.10 or newer, is required for SELinux support])]) fi # for contrib/uuid-ossp if test "$with_uuid" = bsd ; then # On BSD, the UUID functions are in libc AC_CHECK_FUNC(uuid_to_string, [UUID_LIBS=""], [AC_MSG_ERROR([BSD UUID functions are not present])]) elif test "$with_uuid" = e2fs ; then # On macOS, the UUID functions are in libc AC_CHECK_FUNC(uuid_generate, [UUID_LIBS=""], [AC_CHECK_LIB(uuid, uuid_generate, [UUID_LIBS="-luuid"], [AC_MSG_ERROR([library 'uuid' is required for E2FS UUID])])]) elif test "$with_uuid" = ossp ; then AC_CHECK_LIB(ossp-uuid, uuid_export, [UUID_LIBS="-lossp-uuid"], [AC_CHECK_LIB(uuid, uuid_export, [UUID_LIBS="-luuid"], [AC_MSG_ERROR([library 'ossp-uuid' or 'uuid' is required for OSSP UUID])])]) fi AC_SUBST(UUID_LIBS) ## ## Header files ## AC_CHECK_HEADERS(m4_normalize([ copyfile.h execinfo.h getopt.h ifaddrs.h sys/epoll.h sys/event.h sys/personality.h sys/prctl.h sys/procctl.h sys/signalfd.h sys/ucred.h termios.h uchar.h ucred.h xlocale.h ])) if expr x"$pgac_cv_check_readline" : 'x-lreadline' >/dev/null ; then AC_CHECK_HEADERS(readline/readline.h, [], [AC_CHECK_HEADERS(readline.h, [], [AC_MSG_ERROR([readline header not found If you have readline already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable readline support.])])]) AC_CHECK_HEADERS(readline/history.h, [], [AC_CHECK_HEADERS(history.h, [], [AC_MSG_ERROR([history header not found If you have readline already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable readline support.])])]) fi if expr x"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then # Some installations of libedit usurp /usr/include/readline/, which seems # bad practice, since in combined installations readline will have its headers # there. We might have to resort to AC_EGREP checks to make sure we found # the proper header... AC_CHECK_HEADERS(editline/readline.h, [], [AC_CHECK_HEADERS(readline.h, [], [AC_CHECK_HEADERS(readline/readline.h, [], [AC_MSG_ERROR([readline header not found If you have libedit already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable libedit support.])])])]) # Note: in a libedit installation, history.h is sometimes a dummy, and may # not be there at all. Hence, don't complain if not found. We must check # though, since in yet other versions it is an independent header. AC_CHECK_HEADERS(editline/history.h, [], [AC_CHECK_HEADERS(history.h, [], [AC_CHECK_HEADERS(readline/history.h)])]) fi if test "$with_zlib" = yes; then AC_CHECK_HEADER(zlib.h, [], [AC_MSG_ERROR([zlib header not found If you have zlib already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-zlib to disable zlib support.])]) fi PGAC_PATH_PROGS(LZ4, lz4) if test "$with_lz4" = yes; then AC_CHECK_HEADER(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])]) fi PGAC_PATH_PROGS(ZSTD, zstd) if test "$with_zstd" = yes; then AC_CHECK_HEADER(zstd.h, [], [AC_MSG_ERROR([zstd.h header file is required for ZSTD])]) fi if test "$with_gssapi" = yes ; then AC_CHECK_HEADERS(gssapi/gssapi.h, [], [AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])]) AC_CHECK_HEADERS(gssapi/gssapi_ext.h, [], [AC_CHECK_HEADERS(gssapi_ext.h, [], [AC_MSG_ERROR([gssapi_ext.h header file is required for GSSAPI])])]) fi PGAC_PATH_PROGS(OPENSSL, openssl) pgac_openssl_version="$($OPENSSL version 2> /dev/null || echo openssl not found)" AC_MSG_NOTICE([using openssl: $pgac_openssl_version]) if test "$with_ssl" = openssl ; then AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file <openssl/ssl.h> is required for OpenSSL])]) AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file <openssl/err.h> is required for OpenSSL])]) fi if test "$with_pam" = yes ; then AC_CHECK_HEADERS(security/pam_appl.h, [], [AC_CHECK_HEADERS(pam/pam_appl.h, [], [AC_MSG_ERROR([header file <security/pam_appl.h> or <pam/pam_appl.h> is required for PAM.])])]) fi if test "$with_bsd_auth" = yes ; then AC_CHECK_HEADER(bsd_auth.h, [], [AC_MSG_ERROR([header file <bsd_auth.h> is required for BSD Authentication support])]) fi if test "$with_systemd" = yes ; then AC_CHECK_HEADER(systemd/sd-daemon.h, [], [AC_MSG_ERROR([header file <systemd/sd-daemon.h> is required for systemd support])]) fi if test "$with_libxml" = yes ; then AC_CHECK_HEADER(libxml/parser.h, [], [AC_MSG_ERROR([header file <libxml/parser.h> is required for XML support])]) fi if test "$with_libxslt" = yes ; then AC_CHECK_HEADER(libxslt/xslt.h, [], [AC_MSG_ERROR([header file <libxslt/xslt.h> is required for XSLT support])]) fi if test "$with_ldap" = yes ; then if test "$PORTNAME" != "win32"; then AC_CHECK_HEADER(ldap.h, [], [AC_MSG_ERROR([header file <ldap.h> is required for LDAP])]) PGAC_LDAP_SAFE else AC_CHECK_HEADER(winldap.h, [], [AC_MSG_ERROR([header file <winldap.h> is required for LDAP])], [AC_INCLUDES_DEFAULT #include <windows.h> ]) fi fi if test "$with_bonjour" = yes ; then AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])]) dnl At some point we might add something like dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd) dnl but right now, what that would mainly accomplish is to encourage dnl people to try to use the avahi implementation, which does not work. dnl If you want to use Apple's own Bonjour code on another platform, dnl just add -ldns_sd to LIBS manually. fi # for contrib/uuid-ossp if test "$with_uuid" = bsd ; then AC_CHECK_HEADERS(uuid.h, [AC_EGREP_HEADER([uuid_to_string], uuid.h, [], [AC_MSG_ERROR([header file <uuid.h> does not match BSD UUID library])])], [AC_MSG_ERROR([header file <uuid.h> is required for BSD UUID])]) elif test "$with_uuid" = e2fs ; then AC_CHECK_HEADERS(uuid/uuid.h, [AC_EGREP_HEADER([uuid_generate], uuid/uuid.h, [], [AC_MSG_ERROR([header file <uuid/uuid.h> does not match E2FS UUID library])])], [AC_CHECK_HEADERS(uuid.h, [AC_EGREP_HEADER([uuid_generate], uuid.h, [], [AC_MSG_ERROR([header file <uuid.h> does not match E2FS UUID library])])], [AC_MSG_ERROR([header file <uuid/uuid.h> or <uuid.h> is required for E2FS UUID])])]) elif test "$with_uuid" = ossp ; then AC_CHECK_HEADERS(ossp/uuid.h, [AC_EGREP_HEADER([uuid_export], ossp/uuid.h, [], [AC_MSG_ERROR([header file <ossp/uuid.h> does not match OSSP UUID library])])], [AC_CHECK_HEADERS(uuid.h, [AC_EGREP_HEADER([uuid_export], uuid.h, [], [AC_MSG_ERROR([header file <uuid.h> does not match OSSP UUID library])])], [AC_MSG_ERROR([header file <ossp/uuid.h> or <uuid.h> is required for OSSP UUID])])]) fi if test "$PORTNAME" = "win32" ; then AC_CHECK_HEADERS(crtdefs.h) fi if test "$with_libcurl" = yes ; then # Error out early if this platform can't support libpq-oauth. if test "$ac_cv_header_sys_event_h" != yes -a "$ac_cv_header_sys_epoll_h" != yes; then AC_MSG_ERROR([client-side OAuth is not supported on this platform]) fi fi ## ## Types, structures, compiler characteristics ## m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that. AC_C_BIGENDIAN PGAC_PRINTF_ARCHETYPE PGAC_CXX_PRINTF_ARCHETYPE PGAC_C_TYPEOF PGAC_CXX_TYPEOF PGAC_C_TYPEOF_UNQUAL PGAC_CXX_TYPEOF_UNQUAL PGAC_C_BUILTIN_CONSTANT_P PGAC_C_BUILTIN_OP_OVERFLOW PGAC_C_BUILTIN_UNREACHABLE PGAC_C_COMPUTED_GOTO PGAC_STRUCT_TIMEZONE PGAC_UNION_SEMUN AC_CHECK_TYPES(socklen_t, [], [], [#include <sys/socket.h>]) PGAC_STRUCT_SOCKADDR_SA_LEN # MSVC doesn't cope well with defining restrict to __restrict, the # spelling it understands, because it conflicts with # __declspec(restrict) in C++ mode. Therefore we define pg_restrict to # the appropriate definition, which presumably won't conflict. AC_C_RESTRICT if test "$ac_cv_c_restrict" = "no"; then pg_restrict="" else pg_restrict="$ac_cv_c_restrict" fi AC_DEFINE_UNQUOTED([pg_restrict], [$pg_restrict], [Define to keyword to use for C99 restrict support, or to nothing if not supported]) AC_CHECK_TYPES([struct option], [], [], [#ifdef HAVE_GETOPT_H #include <getopt.h> #endif]) case $host_cpu in x86_64) # On x86_64, check if we can compile a popcntq instruction AC_CACHE_CHECK([whether assembler supports x86_64 popcntq], [pgac_cv_have_x86_64_popcntq], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [long long x = 1; long long r; __asm__ __volatile__ (" popcntq %1,%0\n" : "=q"(r) : "rm"(x));])], [pgac_cv_have_x86_64_popcntq=yes], [pgac_cv_have_x86_64_popcntq=no])]) if test x"$pgac_cv_have_x86_64_popcntq" = xyes ; then AC_DEFINE(HAVE_X86_64_POPCNTQ, 1, [Define to 1 if the assembler supports X86_64's POPCNTQ instruction.]) fi ;; ppc*|powerpc*) # On PPC, check if compiler accepts "i"(x) when __builtin_constant_p(x). AC_CACHE_CHECK([whether __builtin_constant_p(x) implies "i"(x) acceptance], [pgac_cv_have_i_constraint__builtin_constant_p], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [static inline int addi(int ra, int si) { int res = 0; if (__builtin_constant_p(si)) __asm__ __volatile__( " addi %0,%1,%2\n" : "=r"(res) : "b"(ra), "i"(si)); return res; } int test_adds(int x) { return addi(3, x) + addi(x, 5); }], [])], [pgac_cv_have_i_constraint__builtin_constant_p=yes], [pgac_cv_have_i_constraint__builtin_constant_p=no])]) if test x"$pgac_cv_have_i_constraint__builtin_constant_p" = xyes ; then AC_DEFINE(HAVE_I_CONSTRAINT__BUILTIN_CONSTANT_P, 1, [Define to 1 if __builtin_constant_p(x) implies "i"(x) acceptance.]) fi ;; esac # Check largefile support. You might think this is a system service not a # compiler characteristic, but you'd be wrong. We must check this before # probing existence of related functions such as fseeko, since the largefile # defines can affect what is generated for that. if test "$PORTNAME" != "win32"; then AC_SYS_LARGEFILE dnl Autoconf 2.69's AC_SYS_LARGEFILE believes it's a good idea to #define dnl _DARWIN_USE_64_BIT_INODE, but it isn't: on macOS 10.5 that activates a dnl bug that causes readdir() to sometimes return EINVAL. On later macOS dnl versions where the feature actually works, it's on by default anyway. AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],[]) fi dnl Check for largefile support (must be after AC_SYS_LARGEFILE) AC_CHECK_SIZEOF([off_t]) # If we don't have largefile support, can't handle segment size >= 2GB. if test "$ac_cv_sizeof_off_t" -lt 8; then if expr $RELSEG_SIZE '*' $blocksize '>=' 2 '*' 1024 '*' 1024 >/dev/null; then AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.]) fi fi # Check for SA_SIGINFO extended signal handler availability AC_CACHE_CHECK([for SA_SIGINFO], [ac_cv_have_sa_siginfo], [ AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[ #include <signal.h> #include <stddef.h> ]], [[ struct sigaction sa; sa.sa_flags = SA_SIGINFO; ]]) ], [ac_cv_have_sa_siginfo=yes], [ac_cv_have_sa_siginfo=no]) ]) if test "x$ac_cv_have_sa_siginfo" = "xyes"; then AC_DEFINE([HAVE_SA_SIGINFO], 1, [Define to 1 if you have SA_SIGINFO available.]) fi ## ## Functions, global variables ## PGAC_VAR_INT_TIMEZONE # Some versions of libedit contain strlcpy(), setproctitle(), and other # symbols that that library has no business exposing to the world. Pending # acquisition of a clue by those developers, ignore libedit (including its # possible alias of libreadline) while checking for everything else. LIBS_including_readline="$LIBS" LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'` AC_CHECK_FUNCS(m4_normalize([ backtrace_symbols copyfile copy_file_range elf_aux_info explicit_memset getauxval getifaddrs getpeerucred inet_pton kqueue localeconv_l mbstowcs_l memset_explicit posix_fallocate ppoll pthread_is_threaded_np setproctitle setproctitle_fast strsignal syncfs sync_file_range uselocale wcstombs_l ])) # These typically are compiler builtins, for which AC_CHECK_FUNCS fails. PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap16], [int x]) PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap32], [int x]) PGAC_CHECK_BUILTIN_FUNC([__builtin_bswap64], [long int x]) # We assume that we needn't test all widths of these explicitly: PGAC_CHECK_BUILTIN_FUNC([__builtin_clz], [unsigned int x]) PGAC_CHECK_BUILTIN_FUNC([__builtin_ctz], [unsigned int x]) # __builtin_frame_address may draw a diagnostic for non-constant argument, # so it needs a different test function. PGAC_CHECK_BUILTIN_FUNC_PTR([__builtin_frame_address], [0]) # We require 64-bit fseeko() to be available, but run this check anyway # in case it finds that _LARGEFILE_SOURCE has to be #define'd for that. AC_FUNC_FSEEKO # posix_fadvise() is a no-op on Solaris, so don't incur function overhead # by calling it, 2009-04-02 # http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c dnl must use AS_IF here, else AC_REQUIRES inside AC_CHECK_DECLS malfunctions AS_IF([test "$PORTNAME" != "solaris"], [ AC_CHECK_FUNCS(posix_fadvise) AC_CHECK_DECLS(posix_fadvise, [], [], [#include <fcntl.h>]) ]) # fi AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>]) AC_CHECK_DECLS([strlcat, strlcpy, strsep, timingsafe_bcmp]) # We can't use AC_CHECK_FUNCS to detect these functions, because it # won't handle deployment target restrictions on macOS AC_CHECK_DECLS([preadv], [], [], [#include <sys/uio.h>]) AC_CHECK_DECLS([pwritev], [], [], [#include <sys/uio.h>]) AC_CHECK_DECLS([strchrnul], [], [], [#include <string.h>]) AC_CHECK_DECLS([memset_s], [], [], [#define __STDC_WANT_LIB_EXT1__ 1 #include <string.h>]) # This is probably only present on macOS, but may as well check always AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include <fcntl.h>]) AC_REPLACE_FUNCS(m4_normalize([ explicit_bzero getopt getpeereid inet_aton mkdtemp strlcat strlcpy strsep timingsafe_bcmp ])) AC_REPLACE_FUNCS(pthread_barrier_wait) if test "$PORTNAME" = "win32" -o "$PORTNAME" = "cygwin"; then # Cygwin and (apparently, based on test results) Mingw both # have a broken strtof(), so substitute its implementation. # That's not a perfect fix, since it doesn't avoid double-rounding, # but we have no better options. AC_LIBOBJ([strtof]) AC_MSG_NOTICE([On $host_os we will use our strtof wrapper.]) fi # Similarly, use system's getopt_long() only if system provides struct option. if test x"$ac_cv_type_struct_option" = xyes ; then AC_REPLACE_FUNCS([getopt_long]) else AC_LIBOBJ(getopt_long) fi # On OpenBSD and Solaris, getopt() doesn't do what we want for long options # (i.e., allow '-' as a flag character), so use our version on those platforms. if test "$PORTNAME" = "openbsd" -o "$PORTNAME" = "solaris"; then AC_LIBOBJ(getopt) fi # mingw has adopted a GNU-centric interpretation of optind/optreset, # so always use our version on Windows. if test "$PORTNAME" = "win32"; then AC_LIBOBJ(getopt) AC_LIBOBJ(getopt_long) fi # Win32 (really MinGW) support if test "$PORTNAME" = "win32"; then AC_LIBOBJ(dirmod) AC_LIBOBJ(kill) AC_LIBOBJ(open) AC_LIBOBJ(system) AC_LIBOBJ(win32common) AC_LIBOBJ(win32dlopen) AC_LIBOBJ(win32env) AC_LIBOBJ(win32error) AC_LIBOBJ(win32fdatasync) AC_LIBOBJ(win32gai_strerror) AC_LIBOBJ(win32getrusage) AC_LIBOBJ(win32link) AC_LIBOBJ(win32ntdll) AC_LIBOBJ(win32pread) AC_LIBOBJ(win32pwrite) AC_LIBOBJ(win32security) AC_LIBOBJ(win32setlocale) AC_LIBOBJ(win32stat) fi # Cygwin needs only a bit of that if test "$PORTNAME" = "cygwin"; then AC_LIBOBJ(dirmod) fi AC_CHECK_FUNC(syslog, [AC_CHECK_HEADER(syslog.h, [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])]) AC_CACHE_CHECK([for opterr], pgac_cv_var_int_opterr, [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int opterr; opterr = 1;])], [pgac_cv_var_int_opterr=yes], [pgac_cv_var_int_opterr=no])]) if test x"$pgac_cv_var_int_opterr" = x"yes"; then AC_DEFINE(HAVE_INT_OPTERR, 1, [Define to 1 if you have the global variable 'int opterr'.]) fi AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset, [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int optreset; optreset = 1;])], [pgac_cv_var_int_optreset=yes], [pgac_cv_var_int_optreset=no])]) if test x"$pgac_cv_var_int_optreset" = x"yes"; then AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.]) fi if test "$with_icu" = yes; then ac_save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $ICU_CFLAGS" # Verify we have ICU's header files AC_CHECK_HEADER(unicode/ucol.h, [], [AC_MSG_ERROR([header file <unicode/ucol.h> is required for ICU])]) CPPFLAGS=$ac_save_CPPFLAGS fi # Lastly, restore full LIBS list and check for readline/libedit symbols LIBS="$LIBS_including_readline" if test "$with_readline" = yes; then PGAC_READLINE_VARIABLES AC_CHECK_FUNCS(m4_normalize([ append_history history_truncate_file rl_completion_matches rl_filename_completion_function rl_reset_screen_size rl_variable_bind ])) fi # This test makes sure that run tests work at all. Sometimes a shared # library is found by the linker, but the runtime linker can't find it. # This check should come after all modifications of compiler or linker # variables, and before any other run tests. AC_MSG_CHECKING([test program]) AC_RUN_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])], [AC_MSG_RESULT(ok)], [AC_MSG_RESULT(failed) AC_MSG_ERROR([[ Could not execute a simple test program. This may be a problem related to locating shared libraries. Check the file 'config.log' for the exact reason.]])], [AC_MSG_RESULT([cross-compiling])]) # These flags are supported in all C11-capable GCC/Clang versions, # so no capability test is needed. Added here to avoid affecting configure probes, # particularly PGAC_PRINTF_ARCHETYPE which uses -Werror and would fail to detect # gnu_printf if -Wstrict-prototypes is active. if test "$GCC" = yes -a "$ICC" = no; then CFLAGS="$CFLAGS -Wstrict-prototypes -Wold-style-definition" fi # -------------------- # Run tests below here # -------------------- # Check size of void *, size_t (enables tweaks for > 32bit address space) AC_CHECK_SIZEOF([void *]) AC_CHECK_SIZEOF([size_t]) AC_CHECK_SIZEOF([long]) AC_CHECK_SIZEOF([long long]) AC_CHECK_SIZEOF([intmax_t]) # Determine memory alignment requirements for the basic C data types. AC_CHECK_ALIGNOF(short) AC_CHECK_ALIGNOF(int) AC_CHECK_ALIGNOF(int64_t) AC_CHECK_ALIGNOF(double) # Compute maximum alignment of any basic type. # # We assume without checking that the maximum alignment requirement is that # of int64_t and/or double. (On most platforms those are the same, but not # everywhere.) For historical reasons, both int8 and float8 datatypes have # typalign 'd', and therefore will be aligned per ALIGNOF_DOUBLE in database # tuples even if ALIGNOF_INT64_T is more. Note that we intentionally do not # consider any types wider than 64 bits, as allowing MAXIMUM_ALIGNOF to exceed # 8 would be too much of a penalty for disk and memory space. if test $ac_cv_alignof_int64_t -gt $ac_cv_alignof_double ; then MAX_ALIGNOF=$ac_cv_alignof_int64_t else MAX_ALIGNOF=$ac_cv_alignof_double fi AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.]) # Some compilers offer a 128-bit integer scalar type. PGAC_TYPE_128BIT_INT # Check for various atomic operations now that we have checked how to declare # 64bit integers. PGAC_HAVE_GCC__SYNC_CHAR_TAS PGAC_HAVE_GCC__SYNC_INT32_TAS PGAC_HAVE_GCC__SYNC_INT32_CAS PGAC_HAVE_GCC__SYNC_INT64_CAS PGAC_HAVE_GCC__ATOMIC_INT32_CAS PGAC_HAVE_GCC__ATOMIC_INT64_CAS # Check for __get_cpuid() and __cpuid() AC_CACHE_CHECK([for __get_cpuid], [pgac_cv__get_cpuid], [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>], [[unsigned int exx[4] = {0, 0, 0, 0}; __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]); ]])], [pgac_cv__get_cpuid="yes"], [pgac_cv__get_cpuid="no"])]) if test x"$pgac_cv__get_cpuid" = x"yes"; then AC_DEFINE(HAVE__GET_CPUID, 1, [Define to 1 if you have __get_cpuid.]) else # __cpuid() AC_CACHE_CHECK([for __cpuid], [pgac_cv__cpuid], [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <intrin.h>], [[unsigned int exx[4] = {0, 0, 0, 0}; __cpuid(exx, 1); ]])], [pgac_cv__cpuid="yes"], [pgac_cv__cpuid="no"])]) if test x"$pgac_cv__cpuid" = x"yes"; then AC_DEFINE(HAVE__CPUID, 1, [Define to 1 if you have __cpuid.]) fi fi # Check for __get_cpuid_count() AC_CACHE_CHECK([for __get_cpuid_count], [pgac_cv__get_cpuid_count], [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <cpuid.h>], [[unsigned int exx[4] = {0, 0, 0, 0}; __get_cpuid_count(7, 0, &exx[0], &exx[1], &exx[2], &exx[3]); ]])], [pgac_cv__get_cpuid_count="yes"], [pgac_cv__get_cpuid_count="no"])]) if test x"$pgac_cv__get_cpuid_count" = x"yes"; then AC_DEFINE(HAVE__GET_CPUID_COUNT, 1, [Define to 1 if you have __get_cpuid_count.]) fi # Check for __cpuidex() AC_CACHE_CHECK([for __cpuidex], [pgac_cv__cpuidex], [AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifdef _MSC_VER #include <intrin.h> #else #include <cpuid.h> #endif], [[unsigned int exx[4] = {0, 0, 0, 0}; __cpuidex((int *) exx, 7, 0); ]])], [pgac_cv__cpuidex="yes"], [pgac_cv__cpuidex="no"])]) if test x"$pgac_cv__cpuidex" = x"yes"; then AC_DEFINE(HAVE__CPUIDEX, 1, [Define to 1 if you have __cpuidex.]) fi # Check for AVX2 target support # if test x"$host_cpu" = x"x86_64"; then PGAC_AVX2_SUPPORT() if test x"$pgac_avx2_support" = x"yes"; then AC_DEFINE(USE_AVX2_WITH_RUNTIME_CHECK, 1, [Define to 1 to use AVX2 instructions with a runtime check.]) fi fi # Check for XSAVE intrinsics # PGAC_XSAVE_INTRINSICS() if test x"$pgac_xsave_intrinsics" = x"yes"; then AC_DEFINE(HAVE_XSAVE_INTRINSICS, 1, [Define to 1 if you have XSAVE intrinsics.]) fi # Check for AVX-512 popcount intrinsics # if test x"$host_cpu" = x"x86_64"; then PGAC_AVX512_POPCNT_INTRINSICS() if test x"$pgac_avx512_popcnt_intrinsics" = x"yes"; then AC_DEFINE(USE_AVX512_POPCNT_WITH_RUNTIME_CHECK, 1, [Define to 1 to use AVX-512 popcount instructions with a runtime check.]) fi fi # Check for SVE popcount intrinsics # if test x"$host_cpu" = x"aarch64"; then PGAC_SVE_POPCNT_INTRINSICS() if test x"$pgac_sve_popcnt_intrinsics" = x"yes"; then AC_DEFINE(USE_SVE_POPCNT_WITH_RUNTIME_CHECK, 1, [Define to 1 to use SVE popcount instructions with a runtime check.]) fi fi # Check for Intel SSE 4.2 intrinsics to do CRC calculations. # PGAC_SSE42_CRC32_INTRINSICS() # Are we targeting a processor that supports SSE 4.2? gcc, clang and icc all # define __SSE4_2__ in that case. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #ifndef __SSE4_2__ #error __SSE4_2__ not defined #endif ])], [SSE4_2_TARGETED=1]) # Check for ARMv8 CRC Extension intrinsics to do CRC calculations. # # First check if __crc32c* intrinsics can be used with the default compiler # flags. If not, check if adding "-march=armv8-a+crc+simd" flag helps. # On systems using soft-float ABI, "-march=armv8-a+crc" is required instead. # CFLAGS_CRC is set if the extra flag is required. PGAC_ARMV8_CRC32C_INTRINSICS([]) if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc+simd]) if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc]) fi fi # Check for LoongArch CRC intrinsics to do CRC calculations. # # Check if __builtin_loongarch_crcc_* intrinsics can be used # with the default compiler flags. PGAC_LOONGARCH_CRC32C_INTRINSICS() AC_SUBST(CFLAGS_CRC) # Select CRC-32C implementation. # # There are three methods of calculating CRC, in order of increasing # performance: # # 1. The fallback using a lookup table, called slicing-by-8 # 2. CRC-32C instructions (found in e.g. Intel SSE 4.2 and ARMv8 CRC Extension) # 3. Algorithms using carryless multiplication instructions # (e.g. Intel PCLMUL and Arm PMULL) # # If we can produce code (via function attributes or additional compiler # flags) that uses #2 (and possibly #3), we compile all implementations # and select which one to use at runtime, depending on what is supported # by the processor we're running on. # # If we are targeting a processor that has #2, we can use that without # runtime selection. # # Note that we do not use __attribute__((target("..."))) for the ARM CRC # instructions because until clang 16, using the ARM intrinsics still requires # special -march flags. Perhaps we can re-evaluate this decision after some # time has passed. # # You can skip the runtime check by setting the appropriate USE_*_CRC32 flag to 1 # in the template or configure command line. # # If we are targeting a LoongArch processor, CRC instructions are # always available (at least on 64 bit), so no runtime check is needed. 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"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"" && test x"$USE_LOONGARCH_CRC32C" = x""; then # Use Intel SSE 4.2 if available. if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && test x"$SSE4_2_TARGETED" = x"1" ; then USE_SSE42_CRC32C=1 else # Intel SSE 4.2, with runtime check? The CPUID instruction is needed for # the runtime check. if test x"$pgac_sse42_crc32_intrinsics" = x"yes" && (test x"$pgac_cv__get_cpuid" = x"yes" || test x"$pgac_cv__cpuid" = x"yes"); then USE_SSE42_CRC32C_WITH_RUNTIME_CHECK=1 else # Use ARM CRC Extension if available. if test x"$pgac_armv8_crc32c_intrinsics" = x"yes" && test x"$CFLAGS_CRC" = x""; then USE_ARMV8_CRC32C=1 else # ARM CRC Extension, with runtime check? if test x"$pgac_armv8_crc32c_intrinsics" = x"yes"; then USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK=1 else # LoongArch CRCC instructions. if test x"$pgac_loongarch_crc32c_intrinsics" = x"yes"; then USE_LOONGARCH_CRC32C=1 else # fall back to slicing-by-8 algorithm, which doesn't require any # special CPU support. USE_SLICING_BY_8_CRC32C=1 fi fi fi fi fi fi # Set PG_CRC32C_OBJS appropriately depending on the selected implementation. AC_MSG_CHECKING([which CRC-32C implementation to use]) if test x"$USE_SSE42_CRC32C" = x"1"; then AC_DEFINE(USE_SSE42_CRC32C, 1, [Define to 1 use Intel SSE 4.2 CRC instructions.]) PG_CRC32C_OBJS="pg_crc32c_sse42.o" AC_MSG_RESULT(SSE 4.2) else if test x"$USE_SSE42_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then AC_DEFINE(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check.]) PG_CRC32C_OBJS="pg_crc32c_sse42.o pg_crc32c_sb8.o" AC_MSG_RESULT(SSE 4.2 with runtime check) else if test x"$USE_ARMV8_CRC32C" = x"1"; then AC_DEFINE(USE_ARMV8_CRC32C, 1, [Define to 1 to use ARMv8 CRC Extension.]) PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_armv8_choose.o" AC_MSG_RESULT(ARMv8 CRC instructions) else if test x"$USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK" = x"1"; then AC_DEFINE(USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use ARMv8 CRC Extension with a runtime check.]) PG_CRC32C_OBJS="pg_crc32c_armv8.o pg_crc32c_sb8.o pg_crc32c_armv8_choose.o" AC_MSG_RESULT(ARMv8 CRC instructions with runtime check) else if test x"$USE_LOONGARCH_CRC32C" = x"1"; then AC_DEFINE(USE_LOONGARCH_CRC32C, 1, [Define to 1 to use LoongArch CRCC instructions.]) PG_CRC32C_OBJS="pg_crc32c_loongarch.o" AC_MSG_RESULT(LoongArch CRCC instructions) else AC_DEFINE(USE_SLICING_BY_8_CRC32C, 1, [Define to 1 to use software CRC-32C implementation (slicing-by-8).]) PG_CRC32C_OBJS="pg_crc32c_sb8.o" AC_MSG_RESULT(slicing-by-8) fi fi fi fi fi AC_SUBST(PG_CRC32C_OBJS) # Check for carryless multiplication intrinsics to do vectorized CRC calculations. # if test x"$host_cpu" = x"x86_64"; then PGAC_AVX512_PCLMUL_INTRINSICS() else if test x"$host_cpu" = x"aarch64"; then PGAC_ARM_PLMULL() fi fi AC_MSG_CHECKING([for vectorized CRC-32C]) if test x"$pgac_avx512_pclmul_intrinsics" = x"yes"; then AC_DEFINE(USE_AVX512_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use AVX-512 CRC algorithms with a runtime check.]) AC_MSG_RESULT(AVX-512 with runtime check) else if test x"$pgac_arm_pmull" = x"yes"; then AC_DEFINE(USE_PMULL_CRC32C_WITH_RUNTIME_CHECK, 1, [Define to 1 to use Arm PMULL CRC algorithms with a runtime check.]) AC_MSG_RESULT(CRYPTO PMULL with runtime check) else AC_MSG_RESULT(none) fi fi # Select semaphore implementation type. if test "$PORTNAME" != "win32"; then if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then # Need sem_open for this AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1]) fi if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then # Need sem_init for this AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1]) fi AC_MSG_CHECKING([which semaphore API to use]) if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" sematype="named POSIX" else if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" sematype="unnamed POSIX" else AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c" sematype="System V" fi fi AC_MSG_RESULT([$sematype]) else AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/win32_sema.c" fi # Select shared-memory implementation type. if test "$PORTNAME" != "win32"; then AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.]) SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c" else AC_DEFINE(USE_WIN32_SHARED_MEMORY, 1, [Define to select Win32-style shared memory.]) SHMEM_IMPLEMENTATION="src/backend/port/win32_shmem.c" fi # Select random number source. If a TLS library is used then it will be the # first choice, else the native platform sources (Windows API or /dev/urandom) # will be used. AC_MSG_CHECKING([which random number source to use]) if test x"$with_ssl" = x"openssl" ; then AC_MSG_RESULT([OpenSSL]) elif test x"$PORTNAME" = x"win32" ; then AC_MSG_RESULT([Windows native]) elif test x"$cross_compiling" = x"yes"; then AC_MSG_RESULT([assuming /dev/urandom]) else AC_MSG_RESULT([/dev/urandom]) AC_CHECK_FILE([/dev/urandom], [], []) if test x"$ac_cv_file__dev_urandom" = x"no" ; then AC_MSG_ERROR([ no source of strong random numbers was found PostgreSQL can use OpenSSL, native Windows API or /dev/urandom as a source of random numbers.]) fi fi # If not set in template file, set bytes to use libc memset() if test x"$MEMSET_LOOP_LIMIT" = x"" ; then MEMSET_LOOP_LIMIT=1024 fi AC_DEFINE_UNQUOTED(MEMSET_LOOP_LIMIT, ${MEMSET_LOOP_LIMIT}, [Define bytes to use libc memset().]) if test "$enable_nls" = yes ; then PGAC_CHECK_GETTEXT fi # Check for Tcl configuration script tclConfig.sh if test "$with_tcl" = yes; then PGAC_PATH_TCLCONFIGSH([$with_tclconfig]) PGAC_EVAL_TCLCONFIGSH([$TCL_CONFIG_SH], [TCL_INCLUDE_SPEC,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD]) if test "$TCL_SHARED_BUILD" != 1; then AC_MSG_ERROR([cannot build PL/Tcl because Tcl is not a shared library Use --without-tcl to disable building PL/Tcl.]) fi # now that we have TCL_INCLUDE_SPEC, we can check for <tcl.h> ac_save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $TCL_INCLUDE_SPEC" AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file <tcl.h> is required for Tcl])]) CPPFLAGS=$ac_save_CPPFLAGS fi # check for <perl.h> if test "$with_perl" = yes; then ac_save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $perl_includespec" AC_CHECK_HEADER(perl.h, [], [AC_MSG_ERROR([header file <perl.h> is required for Perl])], [#include <EXTERN.h>]) # While we're at it, check that we can link to libperl. # On most platforms, if perl.h is there then libperl.so will be too, but at # this writing Debian packages them separately. There is no known reason to # waste cycles on separate probes for the Tcl or Python libraries, though. # On some Red Hat platforms, the link attempt can fail if we don't use # CFLAGS_SL while building the test program. ac_save_CFLAGS=$CFLAGS CFLAGS="$CFLAGS $CFLAGS_SL" pgac_save_LIBS=$LIBS LIBS="$perl_embed_ldflags" AC_MSG_CHECKING([for libperl]) AC_LINK_IFELSE([AC_LANG_PROGRAM([ #include <EXTERN.h> #include <perl.h> ], [perl_alloc();])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_ERROR([libperl library is required for Perl])]) LIBS=$pgac_save_LIBS CFLAGS=$ac_save_CFLAGS CPPFLAGS=$ac_save_CPPFLAGS fi # check for <Python.h> if test "$with_python" = yes; then ac_save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $python_includespec" AC_CHECK_HEADER(Python.h, [], [AC_MSG_ERROR([header file <Python.h> is required for Python])]) CPPFLAGS=$ac_save_CPPFLAGS fi # # Check for documentation-building tools # PGAC_PATH_PROGS(XMLLINT, xmllint) PGAC_PATH_PROGS(XSLTPROC, xsltproc) PGAC_PATH_PROGS(FOP, fop) PGAC_PATH_PROGS(DBTOEPUB, dbtoepub) # # Check for test tools # if test "$enable_tap_tests" = yes; then # Make sure we know where prove is. PGAC_PATH_PROGS(PROVE, prove) if test -z "$PROVE"; then AC_MSG_ERROR([prove not found]) fi # Check for necessary Perl modules. You might think we should use # AX_PROG_PERL_MODULES here, but prove might be part of a different Perl # installation than perl, eg on MSys, so we have to check using prove. AC_MSG_CHECKING(for Perl modules required for TAP tests) __CONFIG_HOST_OS__=$host_os; export __CONFIG_HOST_OS__ [modulestderr=`"$PROVE" "$srcdir/config/check_modules.pl" 2>&1 >/dev/null`] if test $? -eq 0; then # log the module version details, but don't show them interactively echo "$modulestderr" >&AS_MESSAGE_LOG_FD AC_MSG_RESULT(yes) else # on failure, though, show the results to the user AC_MSG_RESULT([$modulestderr]) AC_MSG_ERROR([Additional Perl modules are required to run TAP tests]) fi fi # If compiler will take -Wl,--as-needed (or various platform-specific # spellings thereof) then add that to LDFLAGS. This is much easier than # trying to filter LIBS to the minimum for each executable. # On (at least) some Red-Hat-derived systems, this switch breaks linking to # libreadline; therefore we postpone testing it until we know what library # dependencies readline has. The test code will try to link with $LIBS. if test "$with_readline" = yes; then link_test_func=readline else link_test_func=exit fi if test "$PORTNAME" = "darwin"; then PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-dead_strip_dylibs], $link_test_func) elif test "$PORTNAME" = "openbsd"; then PGAC_PROG_CC_LDFLAGS_OPT([-Wl,-Bdynamic], $link_test_func) else PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func) fi # For linkers that understand --export-dynamic, add that to the LDFLAGS_EX_BE # (backend specific ldflags). One some platforms this will always fail (e.g., # windows), but on others it depends on the choice of linker (e.g., solaris). # macOS uses -export_dynamic instead. (On macOS, the option is only # needed when also using -flto, but we add it anyway since it's # harmless.) PGAC_PROG_CC_LD_VARFLAGS_OPT(LDFLAGS_EX_BE, [-Wl,--export-dynamic], $link_test_func) if test x"$LDFLAGS_EX_BE" = x""; then PGAC_PROG_CC_LD_VARFLAGS_OPT(LDFLAGS_EX_BE, [-Wl,-export_dynamic], $link_test_func) fi AC_SUBST(LDFLAGS_EX_BE) # Create compiler version string if test x"$GCC" = x"yes" ; then cc_string=`${CC} --version | sed q` case $cc_string in [[A-Za-z]]*) ;; *) cc_string="GCC $cc_string";; esac else cc_string=$CC fi AC_DEFINE_UNQUOTED(PG_VERSION_STR, ["PostgreSQL $PG_VERSION on $host, compiled by $cc_string, `expr $ac_cv_sizeof_void_p \* 8`-bit"], [A string containing the version number, platform, and C compiler]) # Supply a numeric version string for use by 3rd party add-ons # awk -F is a regex on some platforms, and not on others, so make "." a tab [PG_VERSION_NUM="`echo $PG_MAJORVERSION $PG_MINORVERSION | $AWK '{printf "%d%04d", $1, $2}'`"] AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number]) AC_SUBST(PG_VERSION_NUM) # If we are inserting PG_SYSROOT into CPPFLAGS, do so symbolically not # literally, so that it's possible to override it at build time using # a command like "make ... PG_SYSROOT=path". This has to be done after # we've finished all configure checks that depend on CPPFLAGS. # The same for LDFLAGS, too. if test x"$PG_SYSROOT" != x; then CPPFLAGS=`echo "$CPPFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"` LDFLAGS=`echo "$LDFLAGS" | sed -e "s| $PG_SYSROOT | \\\$(PG_SYSROOT) |"` fi AC_SUBST(PG_SYSROOT) # Begin output steps AC_MSG_NOTICE([using compiler=$cc_string]) AC_MSG_NOTICE([using CFLAGS=$CFLAGS]) AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS]) AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS]) # Currently only used when LLVM is used if test "$with_llvm" = yes ; then AC_MSG_NOTICE([using CXX=$CXX]) AC_MSG_NOTICE([using CXXFLAGS=$CXXFLAGS]) AC_MSG_NOTICE([using CLANG=$CLANG]) AC_MSG_NOTICE([using BITCODE_CFLAGS=$BITCODE_CFLAGS]) AC_MSG_NOTICE([using BITCODE_CXXFLAGS=$BITCODE_CXXFLAGS]) fi # prepare build tree if outside source tree # Note 1: test -ef might not exist, but it's more reliable than `pwd`. # Note 2: /bin/pwd might be better than shell's built-in at getting # a symlink-free name. if ( test "$srcdir" -ef . ) >/dev/null 2>&1 || test "`cd $srcdir && /bin/pwd`" = "`/bin/pwd`"; then vpath_build=no else vpath_build=yes if test "$no_create" != yes; then _AS_ECHO_N([preparing build tree... ]) pgac_abs_top_srcdir=`cd "$srcdir" && pwd` $SHELL "$ac_aux_dir/prep_buildtree" "$pgac_abs_top_srcdir" "." \ || AC_MSG_ERROR(failed) AC_MSG_RESULT(done) fi fi AC_SUBST(vpath_build) AC_CONFIG_FILES([GNUmakefile src/Makefile.global]) AC_CONFIG_LINKS([ src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION} src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION} src/include/pg_config_os.h:src/include/port/${template}.h src/Makefile.port:src/makefiles/Makefile.${template} ]) if test "$PORTNAME" = "win32"; then AC_CONFIG_COMMANDS([check_win32_symlinks],[ # Links sometimes fail undetected on Mingw - # so here we detect it and warn the user for FILE in $CONFIG_LINKS do # test -e works for symlinks in the MinGW console test -e `expr "$FILE" : '\([[^:]]*\)'` || AC_MSG_WARN([*** link for $FILE -- please fix by hand]) done ]) fi AC_CONFIG_HEADERS([src/include/pg_config.h], [ # Update timestamp for pg_config.h (see Makefile.global) echo >src/include/stamp-h ]) AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h], [echo >src/interfaces/ecpg/include/stamp-h]) AC_OUTPUT # Ensure that any meson build directories would reconfigure and see that # there's a conflicting in-tree build and can error out. if test "$vpath_build" = "no"; then touch meson.build fi