dnl Process this file with autoconf to produce a configure script. dnl $PostgreSQL: pgsql/configure.in,v 1.431.2.15 2007/01/06 05:29:03 pgsql Exp $ 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], [8.1.6], [pgsql-bugs@postgresql.org]) AC_PREREQ(2.59) AC_COPYRIGHT([Copyright (c) 1996-2005, 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_SUBST(configure_args, [$ac_configure_args]) AC_DEFINE_UNQUOTED(PG_VERSION, "$PACKAGE_VERSION", [PostgreSQL version]) AC_CANONICAL_HOST template= AC_MSG_CHECKING([which template to use]) PGAC_ARG_REQ(with, 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 ;; beos*) template=beos ;; bsdi*) template=bsdi ;; cygwin*) template=cygwin ;; darwin*) template=darwin ;; dgux*) template=dgux ;; freebsd*) template=freebsd ;; hpux*) template=hpux ;; irix*) template=irix ;; linux*|gnu*|k*bsd*-gnu) template=linux ;; mingw*) template=win32 ;; netbsd*) template=netbsd ;; nextstep*) template=nextstep ;; openbsd*) template=openbsd ;; osf*) template=osf ;; qnx*) template=qnx4 ;; sco*) template=sco ;; solaris*) template=solaris ;; sunos*) template=sunos4 ;; sysv4.2*) case $host_vendor in univel) template=univel ;; esac ;; sysv4*) template=svr4 ;; sysv5*) template=unixware ;; ultrix*) template=ultrix4 ;; esac if test x"$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 to see about rectifying this. Include the above 'checking host system type...' line. ******************************************************************* ]]) fi ]) AC_MSG_RESULT([$template]) PORTNAME=$template AC_SUBST(PORTNAME) # Initialize default assumption that we do not need separate assembly code # for TAS (test-and-set). This can be overridden by the template file # when it's executed. need_tas=no tas_file=dummy.s ## ## Command line options ## # # Installation directory for documentation # PGAC_ARG(with, docdir, [ --with-docdir=DIR install the documentation in DIR [[PREFIX/doc]] --without-docdir do not install the documentation], [AC_MSG_ERROR([option --with-docdir requires an argument])], [docdir=], [docdir=$withval], [docdir='${prefix}/doc']) AC_SUBST(docdir) # # Add non-standard directories to the include path # PGAC_ARG_REQ(with, includes, [ --with-includes=DIRS look for additional header files in DIRS]) # # Add non-standard directories to the library search path # PGAC_ARG_REQ(with, libraries, [ --with-libraries=DIRS look for additional libraries in DIRS], [LIBRARY_DIRS=$withval]) PGAC_ARG_REQ(with, libs, [ --with-libs=DIRS alternative spelling of --with-libraries], [LIBRARY_DIRS=$withval]) # # 64-bit integer date/time storage (--enable-integer-datetimes) # AC_MSG_CHECKING([whether to build with 64-bit integer date/time support]) PGAC_ARG_BOOL(enable, integer-datetimes, no, [ --enable-integer-datetimes enable 64-bit integer date/time support], [AC_DEFINE([USE_INTEGER_DATETIMES], 1, [Define to 1 if you want 64-bit integer timestamp and interval support. (--enable-integer-datetimes)])]) AC_MSG_RESULT([$enable_integer_datetimes]) # # NLS # AC_MSG_CHECKING([whether NLS is wanted]) PGAC_ARG_OPTARG(enable, nls, [[ --enable-nls[=LANGUAGES] enable Native Language Support]], [], [WANTED_LANGUAGES=$enableval], [AC_DEFINE(ENABLE_NLS, 1, [Define to 1 if you want National Language Support. (--enable-nls)])]) AC_MSG_RESULT([$enable_nls]) AC_SUBST(enable_nls) AC_SUBST(WANTED_LANGUAGES) # # Default port number (--with-pgport), default 5432 # AC_MSG_CHECKING([for default port number]) PGAC_ARG_REQ(with, pgport, [ --with-pgport=PORTNUM change default port number [5432]], [default_port=$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) # # Option to disable shared libraries # PGAC_ARG_BOOL(enable, shared, yes, [ --disable-shared do not build shared libraries]) AC_SUBST(enable_shared) # # '-rpath'-like feature can be disabled # PGAC_ARG_BOOL(enable, rpath, yes, [ --disable-rpath do not embed shared library search path in executables]) AC_SUBST(enable_rpath) # # Spinlocks # PGAC_ARG_BOOL(enable, spinlocks, yes, [ --disable-spinlocks do not use spinlocks]) # # --enable-debug adds -g to compiler flags # PGAC_ARG_BOOL(enable, debug, no, [ --enable-debug build with debugging symbols (-g)]) AC_SUBST(enable_debug) # # C compiler # # For historical reasons you can also use --with-CC to specify the C compiler # to use, although the standard way to do this is to set the CC environment # variable. PGAC_ARG_REQ(with, CC, [], [CC=$with_CC]) case $template in aix) pgac_cc_list="gcc xlc";; irix) pgac_cc_list="cc";; # no gcc *) pgac_cc_list="gcc cc";; esac AC_PROG_CC([$pgac_cc_list]) unset CFLAGS # # Read the template # . "$srcdir/src/template/$template" || exit # CFLAGS 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 the compiler is GCC, then we use -O2. # else: If the compiler is something else, then we use -0. if test "$ac_env_CFLAGS_set" = set; then CFLAGS=$ac_env_CFLAGS_value elif test "${CFLAGS+set}" = set; then : # (keep what template set) elif test "$GCC" = yes; then CFLAGS="-O2" else # if the user selected debug mode, don't use -O if test "$enable_debug" != yes; then CFLAGS="-O" fi fi # Some versions of GCC support some additional useful warning flags. # Check whether they are supported, and add them to CFLAGS if so. if test "$GCC" = yes; then # ICC pretends to be GCC but it's lying; it doesn't support these options. # So we have to check if "GCC" is really ICC. AC_TRY_COMPILE([], [@%:@ifndef __INTEL_COMPILER choke me @%:@endif], [ICC=[yes]], [ICC=[no]]) if test "$ICC" = no; then CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wpointer-arith -Winline" PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement]) PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels]) else # Intel 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]) fi # Disable strict-aliasing rules; needed for gcc 3.3+ PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing]) elif test x"${CC}" = x"xlc"; then # AIX xlc has to have strict aliasing turned off too PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias]) fi # supply -g if --enable-debug if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then CFLAGS="$CFLAGS -g" fi AC_MSG_NOTICE([using CFLAGS=$CFLAGS]) # We already have this in Makefile.win32, but configure needs it too if test "$PORTNAME" = "win32"; then CPPFLAGS="$CPPFLAGS -I$srcdir/src/include/port/win32 -DEXEC_BACKEND" fi # Check if the compiler still works with the template settings AC_MSG_CHECKING([whether the C compiler still works]) AC_TRY_LINK([], [return 0;], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_ERROR([cannot proceed])]) # Defend against gcc -ffast-math if test "$GCC" = yes; then AC_TRY_COMPILE([], [@%:@ifdef __FAST_MATH__ choke me @%:@endif], [], [AC_MSG_ERROR([do not put -ffast-math in CFLAGS])]) fi AC_PROG_CPP AC_SUBST(GCC) # Create compiler version string if test x"$GCC" = x"yes" ; then cc_string="GCC `${CC} --version | sed q`" else cc_string=$CC fi AC_DEFINE_UNQUOTED(PG_VERSION_STR, ["PostgreSQL $PACKAGE_VERSION on $host, compiled by $cc_string"], [A string containing the version number, platform, and C compiler]) # # Set up TAS assembly code if needed; the template file has now had its # chance to request this. # AC_CONFIG_LINKS([src/backend/port/tas.s:src/backend/port/tas/${tas_file}]) if test "$need_tas" = yes ; then TAS=tas.o else TAS="" fi AC_SUBST(TAS) # # Automatic dependency tracking # PGAC_ARG_BOOL(enable, depend, no, [ --enable-depend turn on automatic dependency tracking], [autodepend=yes]) AC_SUBST(autodepend) # # Enable assert checks # PGAC_ARG_BOOL(enable, cassert, no, [ --enable-cassert enable assertion checks (for debugging)], [AC_DEFINE([USE_ASSERT_CHECKING], 1, [Define to 1 to build with assertion checks. (--enable-cassert)])]) # # Include directories # ac_save_IFS=$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 AC_SUBST(INCLUDES) # # 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 # # Enable thread-safe client libraries # AC_MSG_CHECKING([allow thread-safe client libraries]) PGAC_ARG_BOOL(enable, thread-safety, no, [ --enable-thread-safety make client libraries thread-safe]) PGAC_ARG_BOOL(enable, thread-safety-force, no, [ --enable-thread-safety-force force thread-safety in spite of thread test failure]) if test "$enable_thread_safety" = yes -o \ "$enable_thread_safety_force" = yes; then enable_thread_safety="yes" # for 'force' AC_DEFINE([ENABLE_THREAD_SAFETY], 1, [Define to 1 to build client libraries as thread-safe code. (--enable-thread-safety)]) fi AC_MSG_RESULT([$enable_thread_safety]) AC_SUBST(enable_thread_safety) # # Optionally build Tcl modules (PL/Tcl) # AC_MSG_CHECKING([whether to build with Tcl]) PGAC_ARG_BOOL(with, tcl, no, [ --with-tcl build Tcl modules (PL/Tcl)]) AC_MSG_RESULT([$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, [ --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, [ --with-perl build Perl modules (PL/Perl)]) AC_MSG_RESULT([$with_perl]) AC_SUBST(with_perl) # # Optionally build Python modules (PL/Python) # AC_MSG_CHECKING([whether to build Python modules]) PGAC_ARG_BOOL(with, python, no, [ --with-python build Python modules (PL/Python)]) AC_MSG_RESULT([$with_python]) AC_SUBST(with_python) # # Kerberos 5 # AC_MSG_CHECKING([whether to build with Kerberos 5 support]) PGAC_ARG_BOOL(with, krb5, no, [ --with-krb5 build with Kerberos 5 support], [ AC_DEFINE(KRB5, 1, [Define to build with Kerberos 5 support. (--with-krb5)]) krb_srvtab="FILE:\$(sysconfdir)/krb5.keytab" ]) AC_MSG_RESULT([$with_krb5]) AC_SUBST(with_krb5) AC_SUBST(krb_srvtab) # # Kerberos configuration parameters # PGAC_ARG_REQ(with, krb-srvnam, [ --with-krb-srvnam=NAME name of the default service principal in Kerberos [[postgres]]], [], [with_krb_srvnam="postgres"]) AC_DEFINE_UNQUOTED([PG_KRB_SRVNAM], ["$with_krb_srvnam"], [Define to the name of the default PostgreSQL service principal in Kerberos. (--with-krb-srvnam=NAME)]) # # PAM # AC_MSG_CHECKING([whether to build with PAM support]) PGAC_ARG_BOOL(with, pam, no, [ --with-pam build with PAM support], [AC_DEFINE([USE_PAM], 1, [Define to 1 to build with PAM support. (--with-pam)])]) AC_MSG_RESULT([$with_pam]) AC_SUBST(with_pam) # # Bonjour # AC_MSG_CHECKING([whether to build with Bonjour support]) PGAC_ARG_BOOL(with, bonjour, no, [ --with-bonjour build with Bonjour support], [AC_DEFINE([USE_BONJOUR], 1, [Define to 1 to build with Bonjour support. (--with-bonjour)])]) AC_MSG_RESULT([$with_bonjour]) AC_SUBST(with_bonjour) # # OpenSSL # AC_MSG_CHECKING([whether to build with OpenSSL support]) PGAC_ARG_BOOL(with, openssl, no, [ --with-openssl build with OpenSSL support], [AC_DEFINE([USE_SSL], 1, [Define to build with (Open)SSL support. (--with-openssl)])]) AC_MSG_RESULT([$with_openssl]) AC_SUBST(with_openssl) # # Readline # PGAC_ARG_BOOL(with, readline, yes, [ --without-readline do not use Readline]) # readline on MinGW has problems with backslashes in psql and other bugs. # This is particularly a problem with non-US code pages. # Therefore disable its use until we understand the cause. 2004-07-20 if test "$PORTNAME" = "win32"; then if test "$with_readline" = yes; then AC_MSG_WARN([*** Readline does not work on MinGW --- disabling]) with_readline=no fi fi # # Zlib # PGAC_ARG_BOOL(with, zlib, yes, [ --without-zlib do not use Zlib]) AC_SUBST(with_zlib) # # Elf # # Assume system is ELF if it predefines __ELF__ as 1, # otherwise believe host_os based default. case $host_os in freebsd1*|freebsd2*) elf=no;; freebsd3*|freebsd4*) elf=yes;; esac AC_EGREP_CPP(yes, [#if __ELF__ yes #endif ], [ELF_SYS=true], [if test "X$elf" = "Xyes" ; then ELF_SYS=true else ELF_SYS= fi]) AC_SUBST(ELF_SYS) # # Assignments # CPPFLAGS="$CPPFLAGS $INCLUDES" LDFLAGS="$LDFLAGS $LIBDIRS" AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS]) AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS]) AC_ARG_VAR(LDFLAGS_SL) AC_PROG_AWK PGAC_PATH_FLEX AC_PROG_LN_S PGAC_PROG_LD AC_SUBST(LD) AC_SUBST(with_gnu_ld) case $host_os in sysv5*) AC_CACHE_CHECK([whether ld -R works], [pgac_cv_prog_ld_R], [ pgac_save_LDFLAGS=$LDFLAGS; LDFLAGS="$LDFLAGS -Wl,-R/usr/lib" AC_TRY_LINK([], [], [pgac_cv_prog_ld_R=yes], [pgac_cv_prog_ld_R=no]) LDFLAGS=$pgac_save_LDFLAGS ]) ld_R_works=$pgac_cv_prog_ld_R AC_SUBST(ld_R_works) esac AC_PROG_RANLIB AC_CHECK_PROGS(LORDER, lorder) AC_PATH_PROG(TAR, tar) PGAC_CHECK_STRIP AC_CHECK_PROGS(YACC, ['bison -y']) if test "$YACC"; then if $YACC --version | sed q | $AWK '{ if ($4 < 1.875) exit 0; else exit 1;}'; then AC_MSG_WARN([ *** If you are going to modify the grammar files or build from CVS, the installed *** version of Bison is too old. Bison version 1.875 or later is required.]) fi fi if test -z "$YACC"; then AC_MSG_WARN([ *** Without Bison you will not be able to build PostgreSQL from CVS or *** change any of the parser definition files. You can obtain Bison from *** a GNU mirror site. (If you are using the official distribution of *** PostgreSQL then you do not need to worry about this because the Bison *** output is pre-generated.) To use a different yacc program (possible, *** but not recommended), set the environment variable YACC before running *** 'configure'.]) fi AC_SUBST(YFLAGS) PGAC_PATH_PERL if test "$with_perl" = yes; then PGAC_CHECK_PERL_CONFIGS([archlibexp,privlibexp,useshrplib]) PGAC_CHECK_PERL_EMBED_LDFLAGS fi if test "$with_python" = yes; then PGAC_PATH_PYTHON PGAC_CHECK_PYTHON_EMBED_SETUP fi ## ## Libraries ## if test "$PORTNAME" != "aix" -a "$PORTNAME" != "alpha" then AC_CHECK_LIB(bsd, main) fi AC_CHECK_LIB(util, setproctitle) AC_CHECK_LIB(m, main) AC_CHECK_LIB(dl, main) AC_CHECK_LIB(nsl, main) AC_CHECK_LIB(socket, main) AC_CHECK_LIB(ipc, main) AC_CHECK_LIB(IPC, main) AC_CHECK_LIB(lc, main) AC_CHECK_LIB(dld, main) AC_CHECK_LIB(ld, main) AC_CHECK_LIB(compat, main) AC_CHECK_LIB(BSD, main) AC_CHECK_LIB(gen, main) AC_CHECK_LIB(PW, main) AC_CHECK_LIB(resolv, main) AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt]) # QNX: AC_CHECK_LIB(unix, main) AC_SEARCH_LIBS(crypt, crypt) # BeOS: if test "$PORTNAME" = "beos" then AC_CHECK_LIB(bind, __inet_ntoa) fi # Solaris: AC_SEARCH_LIBS(fdatasync, [rt posix4]) # Cygwin: AC_CHECK_LIB(cygipc, shmget) # WIN32: if test "$PORTNAME" = "win32" then AC_CHECK_LIB(wsock32, main) fi 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 "$with_zlib" = yes; then AC_CHECK_LIB(z, inflate, [], [AC_MSG_ERROR([zlib library not found If you have zlib already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-zlib to disable zlib support.])]) fi if test "$enable_spinlocks" = yes; then AC_DEFINE(HAVE_SPINLOCKS, 1, [Define to 1 if you have spinlocks.]) else AC_MSG_WARN([ *** Not using spinlocks will cause poor performance.]) fi if test "$with_krb5" = yes ; then if test "$PORTNAME" != "win32"; then AC_SEARCH_LIBS(com_err, [krb5 'krb5 -ldes -lasn1 -lroken' com_err], [], [AC_MSG_ERROR([could not find function 'com_err' required for Kerberos 5])]) AC_SEARCH_LIBS(krb5_sendauth, [krb5 'krb5 -ldes -lasn1 -lroken'], [], [AC_MSG_ERROR([could not find function 'krb5_sendauth' required for Kerberos 5])]) else AC_SEARCH_LIBS(com_err, 'comerr32 -lkrb5_32', [], [AC_MSG_ERROR([could not find function 'com_err' required for Kerberos 5])]) fi fi if test "$with_openssl" = yes ; then dnl Order matters! if test "$PORTNAME" != "win32"; then AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'crypto' is required for OpenSSL])]) AC_CHECK_LIB(ssl, SSL_library_init, [], [AC_MSG_ERROR([library 'ssl' is required for OpenSSL])]) else AC_CHECK_LIB(eay32, CRYPTO_new_ex_data, [], [AC_MSG_ERROR([library 'eay32' is required for OpenSSL])]) AC_CHECK_LIB(ssleay32, SSL_library_init, [], [AC_MSG_ERROR([library 'ssleay32' is required for OpenSSL])]) fi fi if test "$with_pam" = yes ; then AC_CHECK_LIB(pam, pam_start, [], [AC_MSG_ERROR([library 'pam' is required for PAM])]) fi ## ## Header files ## dnl sys/socket.h is required by AC_FUNC_ACCEPT_ARGTYPES AC_CHECK_HEADERS([crypt.h dld.h endian.h fp_class.h getopt.h ieeefp.h langinfo.h poll.h pwd.h sys/ipc.h sys/poll.h sys/pstat.h sys/select.h sys/sem.h sys/socket.h sys/shm.h sys/time.h sys/un.h termios.h utime.h wchar.h wctype.h kernel/OS.h kernel/image.h SupportDefs.h]) # At least on IRIX, cpp test for netinet/tcp.h will fail unless # netinet/in.h is included first. AC_CHECK_HEADERS(netinet/in.h) AC_CHECK_HEADERS(netinet/tcp.h, [], [], [AC_INCLUDES_DEFAULT #ifdef HAVE_NETINET_IN_H #include #endif ]) if expr x"$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"$pgac_cv_check_readline" : 'x-ledit' >/dev/null ; then # Some installations of libedit usurp /usr/include/readline/, which seems # bad practice, since in combined installations readline will have its headers # there. We might have to resort to AC_EGREP checks to make sure we found # the proper header... AC_CHECK_HEADERS(editline/readline.h, [], [AC_CHECK_HEADERS(readline.h, [], [AC_CHECK_HEADERS(readline/readline.h, [], [AC_MSG_ERROR([readline header not found If you have libedit already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable libedit support.])])])]) AC_CHECK_HEADERS(editline/history.h, [], [AC_CHECK_HEADERS(history.h, [], [AC_CHECK_HEADERS(readline/history.h, [], [AC_MSG_ERROR([history header not found If you have libedit already installed, see config.log for details on the failure. It is possible the compiler isn't looking in the proper directory. Use --without-readline to disable libedit support.])])])]) fi if test "$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 if test "$with_krb5" = yes ; then AC_CHECK_HEADER(krb5.h, [], [AC_MSG_ERROR([header file is required for Kerberos 5])]) fi if test "$with_openssl" = yes ; then AC_CHECK_HEADER(openssl/ssl.h, [], [AC_MSG_ERROR([header file is required for OpenSSL])]) AC_CHECK_HEADER(openssl/err.h, [], [AC_MSG_ERROR([header file is required for OpenSSL])]) fi if test "$with_pam" = yes ; then AC_CHECK_HEADERS(security/pam_appl.h, [], [AC_CHECK_HEADERS(pam/pam_appl.h, [], [AC_MSG_ERROR([header file or is required for PAM.])])]) fi if test "$with_bonjour" = yes ; then AC_CHECK_HEADER(DNSServiceDiscovery/DNSServiceDiscovery.h, [], [AC_MSG_ERROR([header file is required for Bonjour])]) fi ## ## Types, structures, compiler characteristics ## m4_defun([AC_PROG_CC_STDC], []) dnl We don't want that. AC_C_CONST AC_C_INLINE AC_C_STRINGIZE PGAC_C_SIGNED AC_C_VOLATILE PGAC_C_FUNCNAME_SUPPORT PGAC_STRUCT_TIMEZONE PGAC_UNION_SEMUN PGAC_STRUCT_SOCKADDR_UN PGAC_STRUCT_SOCKADDR_STORAGE PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS PGAC_STRUCT_ADDRINFO AC_CHECK_TYPES([struct cmsgcred, struct fcred, struct sockcred], [], [], [#include #include #include #include ]) AC_CHECK_TYPES([struct option], [], [], [#ifdef HAVE_GETOPT_H #include #endif]) if test "$with_zlib" = yes; then # Check that defines z_streamp (versions before about 1.0.4 # did not). While we could work around the lack of z_streamp, it # seems unwise to encourage people to use such old zlib versions... AC_CHECK_TYPE(z_streamp, [], [AC_MSG_ERROR([zlib version is too old Use --without-zlib to disable zlib support.])], [#include ]) fi if test "$with_krb5" = yes; then # Check for differences between MIT and Heimdal (KTH) releases AC_CHECK_MEMBERS(krb5_ticket.enc_part2, [], [AC_CHECK_MEMBERS(krb5_ticket.client, [], [AC_MSG_ERROR([could not determine how to get client name from Kerberos 5 ticket])], [#include ])], [#include ]) AC_CHECK_MEMBERS(krb5_error.text.data, [], [AC_CHECK_MEMBERS(krb5_error.e_data, [], [AC_MSG_ERROR([could not determine how to extract Kerberos 5 error messages])], [#include ])], [#include ]) fi # This is probably only present on Darwin, but may as well check always AC_CHECK_DECLS(F_FULLFSYNC, [], [], [#include ]) ## ## Functions, global variables ## PGAC_VAR_INT_TIMEZONE AC_FUNC_ACCEPT_ARGTYPES PGAC_FUNC_GETTIMEOFDAY_1ARG AC_CHECK_FUNCS([cbrt dlopen fcvt fdatasync getpeereid memmove poll pstat readlink setproctitle setsid sigprocmask symlink sysconf towlower utime utimes waitpid wcstombs]) AC_CHECK_DECLS(fdatasync, [], [], [#include ]) HAVE_IPV6=no AC_CHECK_TYPE([struct sockaddr_in6], [AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if you have support for IPv6.]) HAVE_IPV6=yes], [], [$ac_includes_default #include ]) AC_SUBST(HAVE_IPV6) AC_CACHE_CHECK([for PS_STRINGS], [pgac_cv_var_PS_STRINGS], [AC_TRY_LINK( [#include #include ], [PS_STRINGS->ps_nargvstr = 1; PS_STRINGS->ps_argvstr = "foo";], [pgac_cv_var_PS_STRINGS=yes], [pgac_cv_var_PS_STRINGS=no])]) if test "$pgac_cv_var_PS_STRINGS" = yes ; then AC_DEFINE([HAVE_PS_STRINGS], [], [Define to 1 if the PS_STRINGS thing exists.]) fi # We use our snprintf.c emulation if either snprintf() or vsnprintf() # is missing. Yes, there are machines that have only one. We may # also decide to use snprintf.c if snprintf() is present but does not # have all the features we need --- see below. if test "$PORTNAME" = "win32"; then # Win32 gets snprintf.c built unconditionally. # # To properly translate all NLS languages strings, we must support the # *printf() %$ format, which allows *printf() arguments to be selected # by position in the translated string. # # libintl versions < 0.13 use the native *printf() functions, and Win32 # *printf() doesn't understand %$, so we must use our /port versions, # which do understand %$. libintl versions >= 0.13 include their own # *printf versions on Win32. The libintl 0.13 release note text is: # # C format strings with positions, as they arise when a translator # needs to reorder a sentence, are now supported on all platforms. # On those few platforms (NetBSD and Woe32) for which the native # printf()/fprintf()/... functions don't support such format # strings, replacements are provided through . # # We could use libintl >= 0.13's *printf() if we were sure that we had # a litint >= 0.13 at runtime, but seeing that there is no clean way # to guarantee that, it is best to just use our own, so we are sure to # get %$ support. In include/port.h we disable the *printf() macros # that might have been defined by libintl. # # We do this unconditionally whether NLS is used or not so we are sure # that all Win32 libraries and binaries behave the same. pgac_need_repl_snprintf=yes else pgac_need_repl_snprintf=no AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes) AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes) fi # Check whether declares snprintf() and vsnprintf(); if not, # include/c.h will provide declarations. Note this is a separate test # from whether the functions exist in the C library --- there are # systems that have the functions but don't bother to declare them :-( AC_CHECK_DECLS([snprintf, vsnprintf]) dnl Cannot use AC_CHECK_FUNC because isinf may be a macro AC_CACHE_CHECK([for isinf], ac_cv_func_isinf, [AC_TRY_LINK([ #include double glob_double; ], [return isinf(glob_double) ? 0 : 1;], [ac_cv_func_isinf=yes], [ac_cv_func_isinf=no])]) if test $ac_cv_func_isinf = yes ; then AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have isinf().]) else AC_LIBOBJ(isinf) # Look for a way to implement a substitute for isinf() AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break]) fi AC_REPLACE_FUNCS([crypt fseeko getopt getrusage inet_aton random rint srandom strdup strerror strtol strtoul unsetenv]) # System's version of getaddrinfo(), if any, may be used only if we found # a definition for struct addrinfo; see notes in src/include/getaddrinfo.h. # (Note: the AC_REPLACE_FUNCS probe fails on Windows, where the available # versions of getaddrinfo don't follow normal C call protocol. This is OK # because we want to use our own getaddrinfo.c on Windows anyway.) if test x"$ac_cv_type_struct_addrinfo" = xyes ; then AC_REPLACE_FUNCS([getaddrinfo]) else AC_LIBOBJ(getaddrinfo) 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 # BSD/OS & NetBSD use a custom fseeko/ftello built on fsetpos/fgetpos # We override the previous test that said fseeko/ftello didn't exist # OS tests are also done in include/c.h and port/fseeko.c case $host_os in bsdi*|netbsd*) ac_cv_func_fseeko=yes esac # Solaris has a very slow qsort in certain cases, so we replace it. if test "$PORTNAME" = "solaris"; then AC_LIBOBJ(qsort) fi # Win32 support if test "$PORTNAME" = "win32"; then AC_LIBOBJ(gettimeofday) AC_LIBOBJ(kill) AC_LIBOBJ(open) AC_LIBOBJ(rand) AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.]) fi if test "$with_readline" = yes; then PGAC_VAR_RL_COMPLETION_APPEND_CHARACTER AC_CHECK_FUNCS([rl_completion_matches rl_filename_completion_function]) AC_CHECK_FUNCS([replace_history_entry]) fi dnl Cannot use AC_CHECK_FUNC because finite may be a macro AC_MSG_CHECKING(for finite) AC_TRY_LINK([ #include double glob_double; ], [return finite(glob_double) ? 0 : 1;], [AC_DEFINE(HAVE_FINITE, 1, [Define to 1 if you have finite().]) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) dnl Cannot use AC_CHECK_FUNC because sigsetjmp may be a macro dnl (especially on GNU libc) dnl See also comments in c.h. AC_MSG_CHECKING(for sigsetjmp) AC_TRY_LINK([#include ], [sigjmp_buf x; sigsetjmp(x, 1);], [AC_DEFINE(HAVE_SIGSETJMP, 1, [Define to 1 if you have sigsetjmp().]) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) 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 optreset], pgac_cv_var_int_optreset, [AC_TRY_LINK([#include ], [extern int optreset; optreset = 1;], [pgac_cv_var_int_optreset=yes], [pgac_cv_var_int_optreset=no])]) if test x"$pgac_cv_var_int_optreset" = x"yes"; then AC_DEFINE(HAVE_INT_OPTRESET, 1, [Define to 1 if you have the global variable 'int optreset'.]) fi AC_CHECK_FUNCS([strtoll strtoq], [break]) AC_CHECK_FUNCS([strtoull strtouq], [break]) # Check for one of atexit() or on_exit() AC_CHECK_FUNCS(atexit, [], [AC_CHECK_FUNCS(on_exit, [], [AC_MSG_ERROR([neither atexit() nor on_exit() found])])]) AC_FUNC_FSEEKO # # Pthreads # # For each platform, we need to know about any special compile and link # libraries, and whether the normal C function names are thread-safe. # See the comment at the top of src/port/thread.c for more information. # if test "$enable_thread_safety" = yes; then ACX_PTHREAD # set thread flags # Some platforms use these, so just defineed them. They can't hurt if they # are not supported. PTHREAD_CFLAGS="$PTHREAD_CFLAGS -D_REENTRANT -D_THREAD_SAFE -D_POSIX_PTHREAD_SEMANTICS" # At this point, we don't want to muck with the compiler name for threading. # Let's see who fails, perhaps AIX. 2004-04-23 if test "$PTHREAD_CC" != "$CC"; then AC_MSG_ERROR([ PostgreSQL does not support platforms that require a special compiler binary for thread-safety. ]) fi if test "$THREAD_SUPPORT" = no; then AC_MSG_ERROR([ Cannot enable threads on your platform. Your platform is known to not support thread-safe programs. For details, compile and run src/bin/pg_thread_test. ]) fi # Check for *_r functions _CFLAGS="$CFLAGS" _LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$LIBS $PTHREAD_LIBS" AC_CHECK_HEADER(pthread.h, [], [AC_MSG_ERROR([pthread.h not found, required for --enable-thread-safety])]) AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r]) # Do test here with the proper thread flags PGAC_FUNC_GETPWUID_R_5ARG PGAC_FUNC_STRERROR_R_INT CFLAGS="$_CFLAGS" LIBS="$_LIBS" else # do not use values from template file PTHREAD_CFLAGS= PTHREAD_LIBS= fi AC_SUBST(PTHREAD_CFLAGS) AC_SUBST(PTHREAD_LIBS) # This test makes sure that run tests work at all. Sometimes a shared # library is found by the linker, but the runtime linker can't find it. # This check should come after all modifications of compiler or linker # variables, and before any other run tests. AC_MSG_CHECKING([test program]) AC_TRY_RUN([int main() { return 0; }], [AC_MSG_RESULT(ok)], [AC_MSG_RESULT(failed) AC_MSG_ERROR([[ *** Could not execute a simple test program. This may be a problem *** related to locating shared libraries. Check the file 'config.log' *** for the exact reason.]])], [AC_MSG_RESULT([cross-compiling])]) # -------------------- # Run tests below here # -------------------- # Force use of our snprintf if system's doesn't do arg control # See comment above at snprintf test for details. if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then PGAC_FUNC_PRINTF_ARG_CONTROL if test $pgac_cv_printf_arg_control != yes ; then pgac_need_repl_snprintf=yes fi fi dnl Check to see if we have a working 64-bit integer type. dnl This breaks down into two steps: dnl (1) figure out if the compiler has a 64-bit int type with working dnl arithmetic, and if so dnl (2) see whether snprintf() can format the type correctly. (Currently, dnl snprintf is the only library routine we really need for int8 support.) dnl It's entirely possible to have a compiler that handles a 64-bit type dnl when the C library doesn't; this is fairly likely when using gcc on dnl an older platform, for example. dnl If there is no native snprintf() or it does not handle the 64-bit type, dnl we force our own version of snprintf() to be used instead. dnl Note this test must be run after our initial check for snprintf/vsnprintf. PGAC_TYPE_64BIT_INT([long int]) if test x"$HAVE_LONG_INT_64" = x"no" ; then PGAC_TYPE_64BIT_INT([long long int]) fi dnl If we need to use "long long int", figure out whether nnnLL notation works. if test x"$HAVE_LONG_LONG_INT_64" = xyes ; then AC_TRY_COMPILE([ #define INT64CONST(x) x##LL long long int foo = INT64CONST(0x1234567890123456); ], [], [AC_DEFINE(HAVE_LL_CONSTANTS, 1, [Define to 1 if constants of type 'long long int' should have the suffix LL.])], []) fi # If we found "long int" is 64 bits, assume snprintf handles it. If # we found we need to use "long long int", better check. We cope with # snprintfs that use %lld, %qd, or %I64d as the format. If none of these # work, fall back to our own snprintf emulation (which we know uses %lld). if test "$HAVE_LONG_LONG_INT_64" = yes ; then if test $pgac_need_repl_snprintf = no; then PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT if test "$LONG_LONG_INT_FORMAT" = ""; then # Force usage of our own snprintf, since system snprintf is broken pgac_need_repl_snprintf=yes LONG_LONG_INT_FORMAT='%lld' fi else # Here if we previously decided we needed to use our own snprintf LONG_LONG_INT_FORMAT='%lld' fi LONG_LONG_UINT_FORMAT=`echo "$LONG_LONG_INT_FORMAT" | sed 's/d$/u/'` INT64_FORMAT="\"$LONG_LONG_INT_FORMAT\"" UINT64_FORMAT="\"$LONG_LONG_UINT_FORMAT\"" else # Here if we are not using 'long long int' at all INT64_FORMAT='"%ld"' UINT64_FORMAT='"%lu"' fi AC_DEFINE_UNQUOTED(INT64_FORMAT, $INT64_FORMAT, [Define to the appropriate snprintf format for 64-bit ints, if any.]) AC_DEFINE_UNQUOTED(UINT64_FORMAT, $UINT64_FORMAT, [Define to the appropriate snprintf format for unsigned 64-bit ints, if any.]) # Now we have checked all the reasons to replace snprintf if test $pgac_need_repl_snprintf = yes; then AC_DEFINE(USE_REPL_SNPRINTF, 1, [Use replacement snprintf() functions.]) AC_LIBOBJ(snprintf) fi # Need a #define for the size of Datum (unsigned long) AC_CHECK_SIZEOF([unsigned long]) # And one for the size of size_t (enables tweaks for > 32bit address space) AC_CHECK_SIZEOF([size_t]) # Determine memory alignment requirements for the basic C data types. PGAC_CHECK_ALIGNOF(short) PGAC_CHECK_ALIGNOF(int) PGAC_CHECK_ALIGNOF(long) if test x"$HAVE_LONG_LONG_INT_64" = x"yes" ; then PGAC_CHECK_ALIGNOF(long long int) fi PGAC_CHECK_ALIGNOF(double) # Compute maximum alignment of any basic type. # We assume long's alignment is at least as strong as char, short, or int; # but we must check long long (if it exists) and double. MAX_ALIGNOF=$pgac_cv_alignof_long if test $MAX_ALIGNOF -lt $pgac_cv_alignof_double ; then MAX_ALIGNOF=$pgac_cv_alignof_double fi if test x"$HAVE_LONG_LONG_INT_64" = xyes && test $MAX_ALIGNOF -lt $pgac_cv_alignof_long_long_int ; then MAX_ALIGNOF="$pgac_cv_alignof_long_long_int" fi AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.]) # Some platforms predefine the types int8, int16, etc. Only check # a (hopefully) representative subset. AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [], [#include #ifdef HAVE_SUPPORTDEFS_H #include #endif]) # We also check for sig_atomic_t, which *should* be defined per ANSI # C, but is missing on some old platforms. AC_CHECK_TYPES(sig_atomic_t, [], [], [#include ]) if test x"$template" != x"win32" then PGAC_FUNC_POSIX_SIGNALS if test "$pgac_cv_func_posix_signals" != yes -a "$enable_thread_safety" = yes; then AC_MSG_ERROR([ *** Thread-safety requires POSIX signals, which are not supported by your *** operating system. ]) fi fi if test $ac_cv_func_fseeko = yes; then AC_SYS_LARGEFILE fi # SunOS doesn't handle negative byte comparisons properly with +/- return AC_FUNC_MEMCMP # Select semaphore implementation type. if test x"$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" else if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" else AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c" fi fi # Select shared-memory implementation type. AC_DEFINE(USE_SYSV_SHARED_MEMORY, 1, [Define to select SysV-style shared memory.]) SHMEM_IMPLEMENTATION="src/backend/port/sysv_shmem.c" if test "$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([$TCL_CONFIG_SH], [TCL_INCLUDE_SPEC,TCL_LIB_FILE,TCL_LIBS,TCL_LIB_SPEC,TCL_SHARED_BUILD]) AC_SUBST(TCL_SHLIB_LD_LIBS)dnl don't want to double-evaluate that one # now that we have TCL_INCLUDE_SPEC, we can check for ac_save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$TCL_INCLUDE_SPEC $CPPFLAGS" AC_CHECK_HEADER(tcl.h, [], [AC_MSG_ERROR([header file is required for Tcl])]) CPPFLAGS=$ac_save_CPPFLAGS fi # # Check for DocBook and tools # PGAC_PROG_NSGMLS PGAC_PROG_JADE PGAC_CHECK_DOCBOOK(4.2) PGAC_PATH_DOCBOOK_STYLESHEETS PGAC_PATH_COLLATEINDEX AC_CHECK_PROGS(SGMLSPL, sgmlspl) # Thread testing # We have to run the thread test near the end so we have all our symbols # defined. Cross compiling throws a warning. # if test "$enable_thread_safety_force" = yes; then if test x"$template" != x"win32" then AC_MSG_WARN([ *** Skipping thread test program. --enable-thread-safety-force was used. *** Run the program in src/tools/thread on the your machine and add proper locking function calls to your applications to guarantee thread safety. ]) else AC_MSG_WARN([*** Skipping thread test on Win32]) fi elif test "$enable_thread_safety" = yes; then if test x"$template" != x"win32" then AC_MSG_CHECKING([thread safety of required library functions]) _CFLAGS="$CFLAGS" _LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS -DIN_CONFIGURE" LIBS="$LIBS $PTHREAD_LIBS" AC_TRY_RUN([#include "$srcdir/src/tools/thread/thread_test.c"], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_ERROR([ *** Thread test program failed. Your platform is not thread-safe. *** Check the file 'config.log'for the exact reason. *** *** You can use the configure option --enable-thread-safety-force *** to force threads to be enabled. However, you must then run *** the program in src/tools/thread and add locking function calls *** to your applications to guarantee thread safety. ])], [AC_MSG_RESULT(maybe) AC_MSG_WARN([ *** Skipping thread test program because of cross-compile build. *** Run the program in src/tools/thread on the target machine. ])]) CFLAGS="$_CFLAGS" LIBS="$_LIBS" else AC_MSG_WARN([*** Skipping thread test on Win32]) fi 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" "$pgac_abs_top_srcdir" "." \ || AC_MSG_ERROR(failed) AC_MSG_RESULT(done) fi fi AC_SUBST(vpath_build) AC_CONFIG_FILES([GNUmakefile src/Makefile.global]) AC_CONFIG_LINKS([ src/backend/port/dynloader.c:src/backend/port/dynloader/${template}.c src/backend/port/pg_sema.c:${SEMA_IMPLEMENTATION} src/backend/port/pg_shmem.c:${SHMEM_IMPLEMENTATION} src/include/dynloader.h:src/backend/port/dynloader/${template}.h src/include/pg_config_os.h:src/include/port/${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_OUTPUT