dnl Process this file with autoconf 2.0 or later to make a configure script.

AC_REVISION($Revision$)

AC_PREREQ(2.0)

AC_INIT(Include/object.h)

AC_CONFIG_HEADER(config.h)

# Set VERSION so we only need to edit in one place (i.e., here)

AC_SUBST(VERSION)

VERSION=2.0

# NEXTSTEP stuff

if test -f /usr/lib/NextStep/software_version -o -f /System/Library/CoreServices/software_version ; then

AC_MSG_CHECKING(for --with-next-archs)

AC_ARG_WITH(next-archs,

[ --with-next-archs='arch1 arch2 ..' build MAB binary], [

if test -n "$withval"; then

ac_arch_flags=`/usr/lib/arch_tool -archify_list $withval`

# GCC does not currently support multi archs on the NeXT

with_gcc=no

fi

AC_MSG_RESULT($with_next_archs)

], [AC_MSG_RESULT(none: using `arch`)])

if test -z "$MACHDEP"

then

set X `hostinfo | egrep '(NeXT Mach|Kernel Release).*:' | \

sed -e 's/://' -e 's/\./_/'` && \

ac_sys_system=next && ac_sys_release=$4

MACHDEP="$ac_sys_system$ac_sys_release"

fi

fi

AC_ARG_WITH(next-framework,

[ --with-next-framework Build (OpenStep|Rhapsody|MacOSX) framework],,)

AC_ARG_WITH(dyld,

[ --with-dyld Use (OpenStep|Rhapsody|MacOSX) dynamic linker],,)

# Set name for machine-dependent library files

AC_SUBST(MACHDEP)

AC_MSG_CHECKING(MACHDEP)

if test -z "$MACHDEP"

then

ac_sys_system=`uname -s`

if test "$ac_sys_system" = "AIX" -o "$ac_sys_system" = "Monterey64"; then

ac_sys_release=`uname -v`

else

ac_sys_release=`uname -r`

fi

ac_md_system=`echo $ac_sys_system |

tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'`

ac_md_release=`echo $ac_sys_release |

tr -d '[/ ]' | sed 's/\..*//'`

MACHDEP="$ac_md_system$ac_md_release"

case $MACHDEP in

'') MACHDEP="unknown";;

esac

fi

#

# SGI compilers allow the specification of the both the ABI and the

# ISA on the command line. Depending on the values of these switches,

# different and often incompatable code will be generated.

#

# The SGI_ABI variable can be used to modify the CC and LDFLAGS and

# thus supply support for various ABI/ISA combinations. The MACHDEP

# variable is also adjusted.

#

AC_SUBST(SGI_ABI)

if test ! -z "$SGI_ABI"

then

CC="cc $SGI_ABI"

LDFLAGS="$SGI_ABI $LDFLAGS"

MACHDEP=`echo "${MACHDEP}${SGI_ABI}" | sed 's/ *//g'`

fi

AC_MSG_RESULT($MACHDEP)

#

# CCC is the command that compiles C++ programs

#

# Not all make programs have this predefined.

#

#AC_SUBST(SET_CCC)

#AC_MSG_CHECKING(CCC)

#if test -z "$CCC"

#then

# case $ac_sys_system in

# IRIX*) SET_CCC="CCC= CC ${SGI_ABI}";;

# Linux*) SET_CCC="CCC= g++";;

# *) SET_CCC=""

# esac

#else

# SET_CCC="CCC= ${CCC}"

#fi

#AC_MSG_RESULT($SET_CCC)

# checks for alternative programs

AC_MSG_CHECKING(for --without-gcc)

AC_ARG_WITH(gcc, [ --without-gcc never use gcc], [

case $withval in

no) CC=cc

without_gcc=yes;;

yes) CC=gcc

without_gcc=no;;

*) CC=$withval

without_gcc=$withval;;

esac], [

case $ac_sys_system in

OSF1) CC=cc

without_gcc=;;

BeOS*)

# Dunno if it's a good idea to get this over with all at once, or

# to handle it in with the other goodies.

MACHDEP=beos

case $BE_HOST_CPU in

ppc)

CC="mwcc -I$PWD/BeOS -nodup"

without_gcc=yes

case `uname -r` in

4.0*) OPT="-DUSE_DL_EXPORT -O7 -opt schedule604 -export pragma" ;;

*) OPT="-DUSE_DL_EXPORT -O2 -proc 604e -export pragma" ;;

esac

CCSHARED=-UUSE_DL_EXPORT

LDFLAGS="$LDFLAGS -nodup"

AR="$PWD/BeOS/ar-fake"

RANLIB=:

AC_DEFINE(DL_EXPORT_HEADER,"dl_export.h")

;;

x86)

CC="gcc -I$PWD/BeOS"

without_gcc=no

OPT="-DUSE_DL_EXPORT -O"

CCSHARED=-UUSE_DL_EXPORT

AR="$PWD/BeOS/ar-fake"

RANLIB=:

AC_DEFINE(DL_EXPORT_HEADER,"dl_export.h")

;;

*)

AC_ERROR(Your BeOS system isn't PowerPC or x86... neat, but this won't work...)

;;

esac

;;

Monterey*)

RANLIB=:

without_gcc=;;

*) without_gcc=no;;

esac])

AC_MSG_RESULT($without_gcc)

AC_SUBST(SET_CXX)

AC_SUBST(MAINOBJ)

MAINOBJ=python.o

AC_MSG_CHECKING(for --with-cxx=<compiler>)

AC_ARG_WITH(cxx, [ --with-cxx=<compiler> enable C++ support],[

case $withval in

no) CXX=

with_cxx=no;;

*) CXX=$withval

MAINOBJ=ccpython.o

with_cxx=$withval;;

esac], [

with_cxx=no

])

AC_MSG_RESULT($with_cxx)

SET_CXX="CXX = $CXX"

#AC_MSG_CHECKING(CCC)

#if test -z "$CCC"

#then

# case $ac_sys_system in

# IRIX*) SET_CCC="CCC= CC ${SGI_ABI}";;

# Linux*) SET_CCC="CCC= g++";;

# *) SET_CCC=""

# esac

#else

# SET_CCC="CCC= ${CCC}"

#fi

#AC_MSG_RESULT($SET_CCC)

# If the user switches compilers, we can't believe the cache

if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"

then

AC_ERROR(cached CC is different -- throw away $cache_file

(it is also a good idea to do 'make clean' before compiling))

fi

AC_PROG_CC

case $MACHDEP in

bsdos*)

case $CC in

gcc) CC="$CC -D_HAVE_BSDI";;

esac;;

esac

case $ac_sys_system in

hp*|HP*)

case $CC in

cc|*/cc) CC="$CC -Aa -D_HPUX_SOURCE";;

esac;;

BeOS*)

case $CC in

cc) CC=cc;;

esac;;

Monterey*)

case $CC in

cc) CC="$CC -Wl,-Bexport";;

esac;;

esac

# LDLIBRARY is the name of the library to link against (as opposed to the

# name of the library into which to insert object files). On systems

# without shared libraries, LDLIBRARY is the same as LIBRARY (defined in

# the Makefiles).

AC_SUBST(MAKE_LDLIBRARY)

AC_SUBST(LDLIBRARY)

LDLIBRARY=''

# LINKCC is the command that links the python executable -- default is $(CC).

# This is altered for AIX and BeOS in order to build the export list before

# linking.

AC_SUBST(LINKCC)

AC_MSG_CHECKING(LINKCC)

if test -z "$LINKCC" -a ! -z "$CXX"

then

LINKCC="$CXX"

fi

if test -z "$LINKCC"

then

case $ac_sys_system in

AIX*)

LINKCC="\$(srcdir)/makexp_aix python.exp \"\" \$(LIBRARY); \$(PURIFY) \$(CC)";;

BeOS*)

LINKCC="\$(srcdir)/../BeOS/linkcc \$(LIBRARY) \$(PURIFY) \$(CC) \$(OPT)"

LDLIBRARY='libpython$(VERSION).so';;

dgux*)

LINKCC="LD_RUN_PATH=$libdir \$(PURIFY) \$(CC)";;

Monterey64*)

LINKCC="\$(PURIFY) \$(CC) -L/usr/lib/ia64l64";;

*) LINKCC="\$(PURIFY) \$(CC)";;

esac

fi

AC_MSG_RESULT($LINKCC)

AC_MSG_CHECKING(LDLIBRARY)

# NeXT framework builds require that the 'ar' library be converted into

# a bundle using libtool.

if test "$with_next_framework"

then

LDLIBRARY='libpython$(VERSION).dylib'

fi

# DG/UX requires some fancy ld contortions to produce a .so from an .a

if test "$MACHDEP" = "dguxR4"

then

LDLIBRARY='libpython$(VERSION).so'

OPT="$OPT -pic"

fi

AC_MSG_RESULT($LDLIBRARY)

# If LDLIBRARY is different from LIBRARY, emit a rule to build it.

if test -z "$LDLIBRARY"

then

LDLIBRARY='libpython$(VERSION).a'

MAKE_LDLIBRARY="true"

else

MAKE_LDLIBRARY='$(MAKE) $(LDLIBRARY)'

fi

AC_PROG_RANLIB

AC_SUBST(AR)

AC_CHECK_PROGS(AR, ar aal, ar)

AC_SUBST(INSTALL)

AC_SUBST(INSTALL_PROGRAM)

AC_SUBST(INSTALL_DATA)

# Install just never works :-(

if test -z "$INSTALL"

then

INSTALL=cp

INSTALL_PROGRAM=cp

INSTALL_DATA=cp

else

INSTALL_PROGRAM="$INSTALL"

INSTALL_DATA="$INSTALL -m 644"

fi

# Not every filesystem supports hard links

AC_SUBST(LN)

if test -z "$LN" ; then

case $ac_sys_system in

BeOS*) LN="ln -s";;

*) LN=ln;;

esac

fi

# Optimizer/debugger flags passed between Makefiles

AC_SUBST(OPT)

if test -z "$OPT"

then

case $GCC in

yes)

case $ac_cv_prog_cc_g in

yes) OPT="-g -O2";;

*) OPT="-O2";;

esac

;;

*) OPT="-O";;

esac

fi

# The current (beta) Monterey compiler dies with optimizations

case $ac_sys_system in

Monterey*) OPT="";;

esac

if test "$ac_arch_flags"

then

OPT="$OPT $ac_arch_flags"

fi

# checks for UNIX variants that set C preprocessor variables

AC_AIX

AC_MINIX

AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)

AC_CACHE_VAL(ac_cv_opt_olimit_ok,

[ac_save_cc="$CC"

CC="$CC -OPT:Olimit=0"

AC_TRY_RUN([int main() { return 0; }],

ac_cv_opt_olimit_ok=yes,

ac_cv_opt_olimit_ok=no)

CC="$ac_save_cc"])

AC_MSG_RESULT($ac_cv_opt_olimit_ok)

if test $ac_cv_opt_olimit_ok = yes; then

OPT="$OPT -OPT:Olimit=0"

else

AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)

AC_CACHE_VAL(ac_cv_olimit_ok,

[ac_save_cc="$CC"

CC="$CC -Olimit 1500"

AC_TRY_RUN([int main() { return 0; }],

ac_cv_olimit_ok=yes,

ac_cv_olimit_ok=no)

CC="$ac_save_cc"])

AC_MSG_RESULT($ac_cv_olimit_ok)

if test $ac_cv_olimit_ok = yes; then

OPT="$OPT -Olimit 1500"

fi

fi

dnl # check for ANSI or K&R ("traditional") preprocessor

dnl AC_MSG_CHECKING(for C preprocessor type)

dnl AC_TRY_COMPILE([

dnl #define spam(name, doc) {#name, &name, #name "() -- " doc}

dnl int foo;

dnl struct {char *name; int *addr; char *doc;} desc = spam(foo, "something");

dnl ], [;], cpp_type=ansi, AC_DEFINE(HAVE_OLD_CPP) cpp_type=traditional)

dnl AC_MSG_RESULT($cpp_type)

# checks for header files

AC_HEADER_STDC

AC_CHECK_HEADERS(dlfcn.h fcntl.h limits.h locale.h ncurses.h poll.h pthread.h \

signal.h stdarg.h stddef.h stdlib.h thread.h unistd.h utime.h \

sys/audioio.h sys/file.h sys/lock.h db_185.h db.h \

sys/param.h sys/select.h sys/socket.h sys/time.h sys/times.h \

sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h)

AC_HEADER_DIRENT

# checks for typedefs

was_it_defined=no

AC_MSG_CHECKING(for clock_t in time.h)

AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, AC_DEFINE(clock_t, long))

AC_MSG_RESULT($was_it_defined)

# Add some code to confdefs.h so that the test for off_t works on SCO

cat >> confdefs.h <<\EOF

#if defined(SCO_DS)

#undef _OFF_T

#endif

EOF

# Type availability checks

AC_TYPE_MODE_T

AC_TYPE_OFF_T

AC_TYPE_PID_T

AC_TYPE_SIGNAL

AC_TYPE_SIZE_T

AC_TYPE_UID_T

# Sizes of various common basic types

AC_CHECK_SIZEOF(int)

AC_CHECK_SIZEOF(long)

AC_CHECK_SIZEOF(void *)

AC_CHECK_SIZEOF(char)

AC_CHECK_SIZEOF(short)

AC_CHECK_SIZEOF(float)

AC_CHECK_SIZEOF(double)

AC_CHECK_SIZEOF(fpos_t)

AC_MSG_CHECKING(for long long support)

have_long_long=no

AC_TRY_COMPILE([], [long long x; x = (long long)0;], AC_DEFINE(HAVE_LONG_LONG) have_long_long=yes)

AC_MSG_RESULT($have_long_long)

if test "$have_long_long" = yes ; then

AC_CHECK_SIZEOF(long long)

fi

AC_MSG_CHECKING(for uintptr_t support)

have_uintptr_t=no

AC_TRY_COMPILE([], [uintptr_t x; x = (uintptr_t)0;], AC_DEFINE(HAVE_UINTPTR_T) have_uintptr_t=yes)

AC_MSG_RESULT($have_uintptr_t)

if test "$have_uintptr_t" = yes ; then

AC_CHECK_SIZEOF(uintptr_t)

fi

# Hmph. AC_CHECK_SIZEOF() doesn't include <sys/types.h>.

AC_MSG_CHECKING(size of off_t)

AC_CACHE_VAL(ac_cv_sizeof_off_t,

[AC_TRY_RUN([#include <stdio.h>

#include <sys/types.h>

main()

{

FILE *f=fopen("conftestval", "w");

if (!f) exit(1);

fprintf(f, "%d\n", sizeof(off_t));

exit(0);

}], ac_cv_sizeof_off_t=`cat conftestval`, ac_cv_sizeof_off_t=0)

])

AC_MSG_RESULT($ac_cv_sizeof_off_t)

AC_DEFINE_UNQUOTED(SIZEOF_OFF_T, $ac_cv_sizeof_off_t)

AC_MSG_CHECKING(whether to enable large file support)

if test "$have_long_long" = yes -a \

"$ac_cv_sizeof_off_t" -gt "$ac_cv_sizeof_long" -a \

"$ac_cv_sizeof_long_long" -ge "$ac_cv_sizeof_off_t"; then

AC_DEFINE(HAVE_LARGEFILE_SUPPORT)

AC_MSG_RESULT(yes)

else

AC_MSG_RESULT(no)

fi

# AC_CHECK_SIZEOF() doesn't include <time.h>.

AC_MSG_CHECKING(size of time_t)

AC_CACHE_VAL(ac_cv_sizeof_time_t,

[AC_TRY_RUN([#include <stdio.h>

#include <time.h>

main()

{

FILE *f=fopen("conftestval", "w");

if (!f) exit(1);

fprintf(f, "%d\n", sizeof(time_t));

exit(0);

}], ac_cv_sizeof_time_t=`cat conftestval`, ac_cv_sizeof_time_t=0)

])

AC_MSG_RESULT($ac_cv_sizeof_time_t)

AC_DEFINE_UNQUOTED(SIZEOF_TIME_T, $ac_cv_sizeof_time_t)

# if have pthread_t then define SIZEOF_PTHREAD_T

AC_MSG_CHECKING(for pthread_t)

have_pthread_t=no

AC_TRY_COMPILE([#include <pthread.h>], [pthread_t x; x = (pthread_t)0;], have_pthread_t=yes)

AC_MSG_RESULT($have_pthread_t)

if test "$have_pthread_t" = yes ; then

# AC_CHECK_SIZEOF() doesn't include <pthread.h>.

AC_MSG_CHECKING(size of pthread_t)

AC_CACHE_VAL(ac_cv_sizeof_pthread_t,

[AC_TRY_RUN([#include <stdio.h>

#include <pthread.h>

main()

{

FILE *f=fopen("conftestval", "w");

if (!f) exit(1);

fprintf(f, "%d\n", sizeof(pthread_t));

exit(0);

}], ac_cv_sizeof_pthread_t=`cat conftestval`, ac_cv_sizeof_pthread_t=0)

])

AC_MSG_RESULT($ac_cv_sizeof_pthread_t)

AC_DEFINE_UNQUOTED(SIZEOF_PTHREAD_T, $ac_cv_sizeof_pthread_t)

fi

# Minor variations in building a framework between NextStep versions 4 and 5

AC_SUBST(LIBTOOL_CRUFT)

case $ac_sys_system/$ac_sys_release in

next/4*)

ns_undef_sym='__environ'

LIBTOOL_CRUFT="-U $ns_undef_sym" ;;

next/5*)

ns_undef_sym='_environ'

LIBTOOL_CRUFT="-lcc_dynamic -U $ns_undef_sym" ;;

esac

AC_MSG_CHECKING(for --with-next-framework)

if test "$with_next_framework"

then

OPT="$OPT -fno-common"

# -U __environ is needed since bundles don't have access

# to crt0 when built but will always be linked against it

LDFLAGS="$LDFLAGS -Wl,-U,$ns_undef_sym"

AC_DEFINE(WITH_NEXT_FRAMEWORK)

AC_MSG_RESULT(yes)

else

AC_MSG_RESULT(no)

fi

AC_MSG_CHECKING(for --with-dyld)

if test "$with_next_framework" -o "$with_dyld"

then

if test "$with_dyld"

then

AC_MSG_RESULT(yes)

else

AC_MSG_RESULT(required for framework build)

fi

AC_DEFINE(WITH_DYLD)

ns_dyld='set'

else

AC_MSG_RESULT(no)

fi

# Set info about shared libraries.

AC_SUBST(SO)

AC_SUBST(LDSHARED)

AC_SUBST(CCSHARED)

AC_SUBST(LINKFORSHARED)

# SO is the extension of shared libraries `(including the dot!)

# -- usually .so, .sl on HP-UX

AC_MSG_CHECKING(SO)

if test -z "$SO"

then

case $ac_sys_system in

hp*|HP*) SO=.sl;;

*) SO=.so;;

esac

fi

AC_MSG_RESULT($SO)

# LDSHARED is the ld *command* used to create shared library

# -- "ld" on SunOS 4.x.x, "ld -G" on SunOS 5.x, "ld -shared" on IRIX 5

# (Shared libraries in this instance are shared modules to be loaded into

# Python, as opposed to building Python itself as a shared library.)

AC_MSG_CHECKING(LDSHARED)

if test -z "$LDSHARED"

then

case $ac_sys_system/$ac_sys_release in

AIX*) LDSHARED="\$(srcdir)/ld_so_aix \$(CC)";;

BeOS*) LDSHARED="\$(srcdir)/../BeOS/linkmodule -L.. -lpython\$(VERSION)";;

IRIX/5*) LDSHARED="ld -shared";;

IRIX*/6*) LDSHARED="ld ${SGI_ABI} -shared -all";;

SunOS/4*) LDSHARED="ld";;

SunOS/5*)

if test "$GCC" = "yes"

then LDSHARED='$(CC) -G'

else LDSHARED="ld -G";

fi ;;

hp*|HP*) LDSHARED="ld -b";;

OSF*) LDSHARED="ld -shared -expect_unresolved \"*\"";;

DYNIX/ptx*) LDSHARED="ld -G";;

next/*)

if test "$ns_dyld"

then LDSHARED='$(CC) $(LDFLAGS) -bundle -prebind'

else LDSHARED='$(CC) $(CFLAGS) -nostdlib -r';

fi

if test "$with_next_framework" ; then

LDSHARED="$LDSHARED \$(LDLIBRARY)"

fi ;;

Linux*) LDSHARED="gcc -shared";;

dgux*) LDSHARED="ld -G";;

BSD/OS*/4*) LDSHARED="gcc -shared";;

OpenBSD*) LDSHARED="ld -Bshareable";;

NetBSD*)

if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]

then

LDSHARED="cc -shared"

else

LDSHARED="ld -Bshareable"

fi;;

FreeBSD*)

if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]

then

LDSHARED="cc -shared ${LDFLAGS}"

else

LDSHARED="ld -Bshareable ${LDFLAGS}"

fi;;

SCO_SV*) LDSHARED="cc -G -KPIC -Ki486 -belf -Wl,-Bexport";;

Monterey*) LDSHARED="cc -G -dy -Bdynamic -Bexport -L/usr/lib/ia64l64";;

*) LDSHARED="ld";;

esac

fi

AC_MSG_RESULT($LDSHARED)

# CCSHARED are the C *flags* used to create objects to go into a shared

# library (module) -- this is only needed for a few systems

AC_MSG_CHECKING(CCSHARED)

if test -z "$CCSHARED"

then

case $ac_sys_system/$ac_sys_release in

hp*|HP*) if test "$GCC" = yes;

then CCSHARED="-fpic";

else CCSHARED="+z";

fi;;

Linux*) CCSHARED="-fpic";;

BSD/OS*/4*) CCSHARED="-fpic";;

OpenBSD*) CCSHARED="-fpic";;

FreeBSD*|NetBSD*) CCSHARED="-fPIC";;

SCO_SV*) CCSHARED="-KPIC -dy -Bdynamic";;

Monterey*) CCSHARED="-G";;

IRIX*/6*) case $CC in

*gcc*) CCSHARED="-shared";;

*) CCSHARED="";;

esac;;

esac

fi

AC_MSG_RESULT($CCSHARED)

# LINKFORSHARED are the flags passed to the $(CC) command that links

# the python executable -- this is only needed for a few systems

AC_MSG_CHECKING(LINKFORSHARED)

if test -z "$LINKFORSHARED"

then

case $ac_sys_system/$ac_sys_release in

AIX*) LINKFORSHARED='-Wl,-bE:python.exp -lld';;

hp*|HP*)

LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;

BSD/OS/4*) LINKFORSHARED="-Xlinker -export-dynamic";;

Linux*) LINKFORSHARED="-Xlinker -export-dynamic";;

# -u libsys_s pulls in all symbols in libsys

next/2*|next/3*) LINKFORSHARED="-u libsys_s";;

# -u __dummy makes the linker aware of the objc runtime

# in System.framework; otherwise, __objcInit (referenced in

# crt1.o) gets erroneously defined as common, which breaks dynamic

# loading of any modules which reference it in System.framework

next/4*|next/5*) LINKFORSHARED="-u __dummy -framework System" ;;

SCO_SV*) LINKFORSHARED="-Bdynamic -dy -Wl,-Bexport";;

FreeBSD*|NetBSD*)

if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]

then

LINKFORSHARED="-Wl,--export-dynamic"

fi;;

SunOS/5*) case $CC in

*gcc*)

if $CC -Xlinker -V 2>&1 | grep BFD >/dev/null

then

LINKFORSHARED="-Xlinker --export-dynamic"

fi;;

esac;;

esac

fi

AC_MSG_RESULT($LINKFORSHARED)

# checks for libraries

AC_CHECK_LIB(dl, dlopen) # Dynamic linking for SunOS/Solaris and SYSV

AC_CHECK_LIB(dld, shl_load) # Dynamic linking for HP-UX

# Check for --with-pydebug

AC_MSG_CHECKING(for --with-pydebug)

AC_ARG_WITH(pydebug,

[ --with-pydebug build with Py_DEBUG defined], [

if test "$withval" != no

then AC_DEFINE(Py_DEBUG) AC_MSG_RESULT(yes)

else AC_MSG_RESULT(no)

fi],

[AC_MSG_RESULT(no)])

# checks for system dependent C++ extensions support

case "$ac_sys_system" in

AIX*) AC_MSG_CHECKING(for genuine AIX C++ extensions support)

AC_TRY_LINK([#include "/usr/lpp/xlC/include/load.h"],

[loadAndInit("", 0, "")],

[AC_DEFINE(AIX_GENUINE_CPLUSPLUS)

AC_MSG_RESULT(yes)],

[AC_MSG_RESULT(no)]);;

*) ;;

esac

# Most SVR4 platforms (e.g. Solaris) need -lsocket and -lnsl.

# However on SGI IRIX, these exist but are broken.

# BeOS' sockets are stashed in libnet.

case "$ac_sys_system" in

IRIX*) ;;

*)

AC_CHECK_LIB(nsl, t_open, [LIBS="-lnsl $LIBS"]) # SVR4

AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets

;;

esac

case "$ac_sys_system" in

BeOS*)

AC_CHECK_LIB(net, socket, [LIBS="-lnet $LIBS"], [], $LIBS) # BeOS

;;

esac

AC_MSG_CHECKING(for --with-libs)

AC_ARG_WITH(libs,

[ --with-libs='lib1 ...' link against additional libs], [

AC_MSG_RESULT($withval)

LIBS="$withval $LIBS"

], AC_MSG_RESULT(no))

AC_SUBST(USE_THREAD_MODULE)

USE_THREAD_MODULE=""

AC_MSG_CHECKING(for --with-dec-threads)

AC_SUBST(LDLAST)

AC_ARG_WITH(dec-threads,

[ --with-dec-threads use DEC Alpha/OSF1 thread-safe libraries], [

AC_MSG_RESULT($withval)

LDLAST=-threads

if test "${with_thread+set}" != set; then

with_thread="$withval";

fi],

AC_MSG_RESULT(no))

AC_MSG_CHECKING(for --with-threads)

AC_ARG_WITH(threads,

[ --with(out)-threads[=DIRECTORY] disable/enable thread support])

# --with-thread is deprecated, but check for it anyway

AC_ARG_WITH(thread,

[ --with(out)-thread[=DIRECTORY] deprecated; use --with(out)-threads],[

with_threads=$with_thread])

if test -z "$with_threads"

then with_threads="yes"

fi

AC_MSG_RESULT($with_threads)

if test "$with_threads" = "no"

then

USE_THREAD_MODULE="#"

else

if test -d "$with_threads"

then LDFLAGS="$LDFLAGS -L$with_threads"

fi

if test -d "$withval"

then LDFLAGS="$LDFLAGS -L$withval"

fi

AC_DEFINE(_REENTRANT)

AC_CHECK_HEADER(mach/cthreads.h, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(C_THREADS)

LIBOBJS="$LIBOBJS thread.o"],[

AC_CHECK_LIB(pthread, pthread_create, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBS="-lpthread $LIBS"

LIBOBJS="$LIBOBJS thread.o"],[

AC_CHECK_FUNC(pthread_detach, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBOBJS="$LIBOBJS thread.o"],[

AC_CHECK_HEADER(kernel/OS.h, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(BEOS_THREADS)

LIBOBJS="$LIBOBJS thread.o"],[

AC_CHECK_LIB(pthreads, pthread_create, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBS="$LIBS -lpthreads"

LIBOBJS="$LIBOBJS thread.o"], [

AC_CHECK_LIB(c_r, pthread_create, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBS="$LIBS -lc_r"

LIBOBJS="$LIBOBJS thread.o"], [

AC_CHECK_LIB(thread, __d6_pthread_create, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBS="$LIBS -lthread"

LIBOBJS="$LIBOBJS thread.o"], [

AC_CHECK_LIB(pth, pth_init, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_GNU_PTH)

LIBS="-lpth $LIBS"

LIBOBJS="$LIBOBJS thread.o"],[

AC_CHECK_LIB(cma, pthread_create, [AC_DEFINE(WITH_THREAD)

AC_DEFINE(_POSIX_THREADS)

LIBS="$LIBS -lcma"

LIBOBJS="$LIBOBJS thread.o"],[

USE_THREAD_MODULE="#"])

])])])])])])])])

AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)

LIBS="$LIBS -lmpc"

LIBOBJS="$LIBOBJS thread.o"

USE_THREAD_MODULE=""])

AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)

LIBS="$LIBS -lthread"

LIBOBJS="$LIBOBJS thread.o"

USE_THREAD_MODULE=""])

fi

# Check for GC support

AC_SUBST(USE_GC_MODULE)

USE_GC_MODULE=""

AC_MSG_CHECKING(for --with-cycle-gc)

AC_ARG_WITH(cycle-gc,

[ --with(out)-cycle-gc disable/enable garbage collection])

if test -z "$with_cycle_gc"

then with_cycle_gc="yes"

fi

if test "$with_cycle_gc" = "no"

then

USE_GC_MODULE="#"

else

AC_DEFINE(WITH_CYCLE_GC)

fi

AC_MSG_RESULT($with_cycle_gc)

# Check for LIBDB support

# either --with-libdb or, in its absence, the presence of db.h

AC_SUBST(USE_BSDDB_MODULE)

USE_BSDDB_MODULE=""

AC_MSG_CHECKING(for --with-libdb)

AC_ARG_WITH(libdb,

[ --with(out)-libdb disable/enable bsddb module])

# enabled by default, but db.h must be found

if test "$ac_cv_header_db_h" = "yes"

then

if test "$with_libdb" != "no"

then with_libdb="yes"

fi

else

# make sure user knows why bsddb support wasn't enabled event

# though s/he requested it

if test "$with_libdb" = "yes"

then echo $ac_n "(requested, but db.h was not found) $ac_c"

fi

with_libdb="no"

fi

if test "$with_libdb" = "no"

then

USE_BSDDB_MODULE="#"

else

AC_DEFINE(WITH_LIBDB)

fi

AC_MSG_RESULT($with_libdb)

# Check for --with-wctype-functions

AC_MSG_CHECKING(for --with-wctype-functions)

AC_ARG_WITH(wctype-functions,

[ --with-wctype-functions use wctype.h functions], [

if test "$withval" != no

then AC_DEFINE(WANT_WCTYPE_FUNCTIONS) AC_MSG_RESULT(yes)

else AC_MSG_RESULT(no)

fi],

[AC_MSG_RESULT(no)])

# -I${DLINCLDIR} is added to the compile rule for importdl.o

AC_SUBST(DLINCLDIR)

DLINCLDIR=/

AC_MSG_CHECKING(for --with-sgi-dl)

AC_ARG_WITH(sgi-dl,

[ --with-sgi-dl=DIRECTORY IRIX 4 dynamic linking], [

AC_MSG_RESULT($withval)

AC_DEFINE(WITH_SGI_DL)

DYNLOADFILE="dynload_dl.o"

dldir=$withval

if test -d "$dldir"

then LDFLAGS="$LDFLAGS -L$dldir"

else AC_ERROR(proper usage is --with-sgi-dl=DIRECTORY)

fi

DLINCLDIR=${dldir}

LIBS="$LIBS -ldl -lmld"], AC_MSG_RESULT(no))

AC_MSG_CHECKING(for --with-dl-dld)

AC_ARG_WITH(dl-dld, [ --with-dl-dld=DL_DIR,DLD_DIR GNU dynamic linking], [

AC_MSG_RESULT($withval)

AC_DEFINE(WITH_DL_DLD)

DYNLOADFILE="dynload_dl.o"

dldir=`echo "$withval" | sed 's/,.*//'`

dlddir=`echo "$withval" | sed 's/.*,//'`

if test -d "$dldir" -a -d "$dlddir"

then LDFLAGS="$LDFLAGS -L$dldir -L$dlddir"

else AC_ERROR(proper usage is --with-dl-dld=DL_DIRECTORY,DLD_DIRECTORY)

fi

DLINCLDIR=${dldir}

LIBS="$LIBS -ldl -ldld"], AC_MSG_RESULT(no))

# the dlopen() function means we might want to use dynload_shlib.o. some

# platforms, such as AIX, have dlopen(), but don't want to use it.

AC_CHECK_FUNCS(dlopen)

# DYNLOADFILE specifies which dynload_*.o file we will use for dynamic

# loading of modules.

AC_SUBST(DYNLOADFILE)

AC_MSG_CHECKING(DYNLOADFILE)

if test -z "$DYNLOADFILE"

then

case $ac_sys_system/$ac_sys_release in

AIX*) DYNLOADFILE="dynload_aix.o";;

BeOS*) DYNLOADFILE="dynload_beos.o";;

hp*|HP*) DYNLOADFILE="dynload_hpux.o";;

next/*) DYNLOADFILE="dynload_next.o";;

*)

# use dynload_shlib.c and dlopen() if we have it; otherwise stub

# out any dynamic loading

if test "$ac_cv_func_dlopen" = yes

then DYNLOADFILE="dynload_shlib.o"

else DYNLOADFILE="dynload_stub.o"

fi

;;

esac

fi

AC_MSG_RESULT($DYNLOADFILE)

if test "$DYNLOADFILE" != "dynload_stub.o"

then

AC_DEFINE(HAVE_DYNAMIC_LOADING)

fi

# checks for library functions

AC_CHECK_FUNCS(alarm chown clock confstr ctermid ctermid_r execv \

flock fork fsync fdatasync fpathconf ftime ftruncate \

getgroups getlogin getpeername getpid getpwent getwd \

kill link lstat mkfifo mktime mremap \

nice pathconf pause plock poll pthread_init \

putenv readlink \

select setegid seteuid setgid \

setlocale setregid setreuid setsid setpgid setuid setvbuf \

sigaction siginterrupt sigrelse strftime strptime symlink sysconf \

tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \

truncate uname waitpid _getpty)

# check for openpty and forkpty

AC_CHECK_FUNCS(openpty,, AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"]))

AC_CHECK_FUNCS(forkpty,, AC_CHECK_LIB(util,forkpty, [AC_DEFINE(HAVE_FORKPTY)] [LIBS="$LIBS -lutil"]))

# check for long file support functions

AC_CHECK_FUNCS(fseek64 fseeko fstatvfs ftell64 ftello statvfs)

AC_REPLACE_FUNCS(dup2 getcwd strdup strerror memmove)

AC_CHECK_FUNCS(getpgrp, AC_TRY_COMPILE([#include <unistd.h>], [getpgrp(0);], AC_DEFINE(GETPGRP_HAVE_ARG)))

AC_CHECK_FUNCS(setpgrp, AC_TRY_COMPILE([#include <unistd.h>], [setpgrp(0,0);], AC_DEFINE(SETPGRP_HAVE_ARG)))

AC_CHECK_FUNCS(gettimeofday, AC_TRY_COMPILE([#include <sys/time.h>], [gettimeofday((struct timeval*)0,(struct timezone*)0);], ,AC_DEFINE(GETTIMEOFDAY_NO_TZ)))

# checks for structures

AC_HEADER_TIME

AC_STRUCT_TM

AC_STRUCT_TIMEZONE

AC_MSG_CHECKING(for time.h that defines altzone)

AC_CACHE_VAL(ac_cv_header_time_altzone,

[AC_TRY_COMPILE([#include <time.h>], [return altzone;],

ac_cv_header_time_altzone=yes,

ac_cv_header_time_altzone=no)])

AC_MSG_RESULT($ac_cv_header_time_altzone)

if test $ac_cv_header_time_altzone = yes; then

AC_DEFINE(HAVE_ALTZONE)

fi

was_it_defined=no

AC_MSG_CHECKING(whether sys/select.h and sys/time.h may both be included)

AC_TRY_COMPILE([

#include <sys/types.h>

#include <sys/select.h>

#include <sys/time.h>

], [;], [AC_DEFINE(SYS_SELECT_WITH_SYS_TIME) was_it_defined=yes])

AC_MSG_RESULT($was_it_defined)

# checks for compiler characteristics

AC_C_CHAR_UNSIGNED

AC_C_CONST

AC_C_INLINE

works=no

AC_MSG_CHECKING(for working volatile)

AC_TRY_COMPILE([],[volatile int x; x = 0;], works=yes, AC_DEFINE(volatile, []))

AC_MSG_RESULT($works)

works=no

AC_MSG_CHECKING(for working signed char)

AC_TRY_COMPILE([], [signed char c;], works=yes, AC_DEFINE(signed, []))

AC_MSG_RESULT($works)

have_prototypes=no

AC_MSG_CHECKING(for prototypes)

AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],

AC_DEFINE(HAVE_PROTOTYPES) have_prototypes=yes)

AC_MSG_RESULT($have_prototypes)

works=no

AC_MSG_CHECKING(for variable length prototypes and stdarg.h)

AC_TRY_COMPILE([

#include <stdarg.h>

int foo(int x, ...) {

va_list va;

va_start(va, x);

va_arg(va, int);

va_arg(va, char *);

va_arg(va, double);

return 0;

}

], [return foo(10, "", 3.14);],

AC_DEFINE(HAVE_STDARG_PROTOTYPES) works=yes)

AC_MSG_RESULT($works)

if test "$have_prototypes" = yes; then