dnl ***********************************************
dnl * Please run autoreconf to test your changes! *
dnl ***********************************************
dnl NOTE: autoconf 2.64 doesn't seem to work (use 2.61).

# Set VERSION so we only need to edit in one place (i.e., here)
m4_define(PYTHON_VERSION, 2.6)

AC_REVISION($Revision: 75132 $)
AC_PREREQ(2.61)
AC_INIT(python, PYTHON_VERSION, http://www.python.org/python-bugs)
AC_CONFIG_SRCDIR([Include/object.h])
AC_CONFIG_HEADER(pyconfig.h)

dnl This is for stuff that absolutely must end up in pyconfig.h.
dnl Please use pyport.h instead, if possible.
AH_TOP([
#ifndef Py_PYCONFIG_H
#define Py_PYCONFIG_H
])
AH_BOTTOM([
/* Define the macros needed if on a UnixWare 7.x system. */
#if defined(__USLC__) && defined(__SCO_VERSION__)
#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
#endif

#endif /*Py_PYCONFIG_H*/
])

# We don't use PACKAGE_ variables, and they cause conflicts
# with other autoconf-based packages that include Python.h
grep -v 'define PACKAGE_' <confdefs.h >confdefs.h.new
rm confdefs.h
mv confdefs.h.new confdefs.h

AC_SUBST(VERSION)
VERSION=PYTHON_VERSION

AC_SUBST(SOVERSION)
SOVERSION=1.0

# The later defininition of _XOPEN_SOURCE disables certain features
# on Linux, so we need _GNU_SOURCE to re-enable them (makedev, tm_zone).
AC_DEFINE(_GNU_SOURCE, 1, [Define on Linux to activate all library features])

# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
# them.
AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])

# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
# them.
AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])

# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])

# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on Mac OS X, so we need _DARWIN_C_SOURCE to re-enable
# them.
AC_DEFINE(_DARWIN_C_SOURCE, 1, [Define on Darwin to activate all library features])


define_xopen_source=yes

# Arguments passed to configure.
AC_SUBST(CONFIG_ARGS)
CONFIG_ARGS="$ac_configure_args"

AC_ARG_ENABLE(universalsdk,
	AC_HELP_STRING(--enable-universalsdk@<:@=SDKDIR@:>@, Build against Mac OS X 10.4u SDK (ppc/i386)),
[
	case $enableval in
	yes)
		enableval=/Developer/SDKs/MacOSX10.4u.sdk
		;;
	esac
	case $enableval in
	no)
		UNIVERSALSDK=
		enable_universalsdk=
		;;
	*)
		UNIVERSALSDK=$enableval
		;;
	esac
],[
   	UNIVERSALSDK=
	enable_universalsdk=
])
AC_SUBST(UNIVERSALSDK)

AC_SUBST(ARCH_RUN_32BIT)

UNIVERSAL_ARCHS="32-bit"
AC_MSG_CHECKING(for --with-universal-archs)
AC_ARG_WITH(universal-archs,
    AC_HELP_STRING(--with-universal-archs=ARCH, select architectures for universal build ("32-bit", "64-bit", "3-way", "intel" or "all")),
[
	AC_MSG_RESULT($withval)
	UNIVERSAL_ARCHS="$withval"
        if test "${enable_universalsdk}" ; then
		:
	else
		AC_MSG_ERROR([--with-universal-archs without --enable-universalsdk. See Mac/README])
	fi
],
[
 	AC_MSG_RESULT(32-bit)
])



AC_ARG_WITH(framework-name,
              AC_HELP_STRING(--with-framework-name=FRAMEWORK, 
                             specify an alternate name of the framework built with --enable-framework),
[
    if test "${enable_framework}"; then
	    :
    else
	AC_MSG_ERROR([--with-framework-name without --enable-framework. See Mac/README])
    fi
    PYTHONFRAMEWORK=${withval}
    PYTHONFRAMEWORKDIR=${withval}.framework
    PYTHONFRAMEWORKIDENTIFIER=org.python.`echo $withval | tr '[A-Z]' '[a-z]'`
    ],[
    PYTHONFRAMEWORK=Python
    PYTHONFRAMEWORKDIR=Python.framework
    PYTHONFRAMEWORKIDENTIFIER=org.python.python
])
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
AC_ARG_ENABLE(framework,
              AC_HELP_STRING(--enable-framework@<:@=INSTALLDIR@:>@, Build (MacOSX|Darwin) framework),
[
	case $enableval in
	yes) 
		enableval=/Library/Frameworks
	esac
	case $enableval in
	no)
		PYTHONFRAMEWORK=
		PYTHONFRAMEWORKDIR=no-framework
		PYTHONFRAMEWORKPREFIX=
		PYTHONFRAMEWORKINSTALLDIR=
		FRAMEWORKINSTALLFIRST=
		FRAMEWORKINSTALLLAST=
		FRAMEWORKALTINSTALLFIRST=
		FRAMEWORKALTINSTALLLAST=
		if test "x${prefix}" = "xNONE"; then
			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
		else
			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
		fi
		enable_framework=
		;;
	*)
		PYTHONFRAMEWORKPREFIX=$enableval
		PYTHONFRAMEWORKINSTALLDIR=$PYTHONFRAMEWORKPREFIX/$PYTHONFRAMEWORKDIR
		FRAMEWORKINSTALLFIRST="frameworkinstallstructure"
		FRAMEWORKALTINSTALLFIRST="frameworkinstallstructure bininstall maninstall"
		if test "$UNIVERSAL_ARCHS" = "all"
		then
			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkinstallunixtools4way"
			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkaltinstallunixtools4way"
		else
			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools"
			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkaltinstallunixtools"
		fi

		if test "x${prefix}" = "xNONE" ; then
			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
		else
			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
		fi
		prefix=$PYTHONFRAMEWORKINSTALLDIR/Versions/$VERSION

		# Add files for Mac specific code to the list of output
		# files:
		AC_CONFIG_FILES(Mac/Makefile)
		AC_CONFIG_FILES(Mac/PythonLauncher/Makefile)
		AC_CONFIG_FILES(Mac/IDLE/Makefile)
		AC_CONFIG_FILES(Mac/Resources/framework/Info.plist)
		AC_CONFIG_FILES(Mac/Resources/app/Info.plist)
	esac
	],[
	PYTHONFRAMEWORK=
	PYTHONFRAMEWORKDIR=no-framework
	PYTHONFRAMEWORKPREFIX=
	PYTHONFRAMEWORKINSTALLDIR=
	FRAMEWORKINSTALLFIRST=
	FRAMEWORKINSTALLLAST=
	FRAMEWORKALTINSTALLFIRST=
	FRAMEWORKALTINSTALLLAST=
	if test "x${prefix}" = "xNONE" ; then
		FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
	else
		FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
	fi
	enable_framework=

	if test "$UNIVERSAL_ARCHS" = "all" 
	then
		FRAMEWORKINSTALLLAST=update4wayuniversal
		FRAMEWORKALTINSTALLLAST=update4wayuniversal
	fi
])
AC_SUBST(PYTHONFRAMEWORK)
AC_SUBST(PYTHONFRAMEWORKIDENTIFIER)
AC_SUBST(PYTHONFRAMEWORKDIR)
AC_SUBST(PYTHONFRAMEWORKPREFIX)
AC_SUBST(PYTHONFRAMEWORKINSTALLDIR)
AC_SUBST(FRAMEWORKINSTALLFIRST)
AC_SUBST(FRAMEWORKINSTALLLAST)
AC_SUBST(FRAMEWORKALTINSTALLFIRST)
AC_SUBST(FRAMEWORKALTINSTALLLAST)
AC_SUBST(FRAMEWORKUNIXTOOLSPREFIX)

##AC_ARG_WITH(dyld,
##            AC_HELP_STRING(--with-dyld,
##                           Use (OpenStep|Rhapsody) 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 "$ac_sys_system" = "Monterey64" \
	-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; 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 $ac_sys_release |
			   tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'`
	MACHDEP="$ac_md_system$ac_md_release"

	case $MACHDEP in
	cygwin*) MACHDEP="cygwin";;
	darwin*) MACHDEP="darwin";;
	atheos*) MACHDEP="atheos";;
        irix646) MACHDEP="irix6";;
	'')	MACHDEP="unknown";;
	esac
fi
	
# Some systems cannot stand _XOPEN_SOURCE being defined at all; they
# disable features if it is defined, without any means to access these
# features as extensions. For these systems, we skip the definition of
# _XOPEN_SOURCE. Before adding a system to the list to gain access to
# some feature, make sure there is no alternative way to access this
# feature. Also, when using wildcards, make sure you have verified the
# need for not defining _XOPEN_SOURCE on all systems matching the
# wildcard, and that the wildcard does not include future systems
# (which may remove their limitations).
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
case $ac_sys_system/$ac_sys_release in
  # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
  # even though select is a POSIX function. Reported by J. Ribbens.
  # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
  OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123@:>@) 
    define_xopen_source=no
    # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
    # also defined. This can be overridden by defining _BSD_SOURCE
    # As this has a different meaning on Linux, only define it on OpenBSD
    AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
    ;;
  # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
  # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
  # Marc Recht
  NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6@<:@A-S@:>@)
    define_xopen_source=no;;
  # On Solaris 2.6, sys/wait.h is inconsistent in the usage
  # of union __?sigval. Reported by Stuart Bishop.
  SunOS/5.6)
    define_xopen_source=no;;
  # On UnixWare 7, u_long is never defined with _XOPEN_SOURCE,
  # but used in /usr/include/netinet/tcp.h. Reported by Tim Rice.
  # Reconfirmed for 7.1.4 by Martin v. Loewis.
  OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-4@:>@)
    define_xopen_source=no;;
  # On OpenServer 5, u_short is never defined with _XOPEN_SOURCE,
  # but used in struct sockaddr.sa_family. Reported by Tim Rice.
  SCO_SV/3.2)
    define_xopen_source=no;;
  # On FreeBSD 4, the math functions C89 does not cover are never defined
  # with _XOPEN_SOURCE and __BSD_VISIBLE does not re-enable them.
  FreeBSD/4.*)
    define_xopen_source=no;;
  # On MacOS X 10.2, a bug in ncurses.h means that it craps out if 
  # _XOPEN_EXTENDED_SOURCE is defined. Apparently, this is fixed in 10.3, which
  # identifies itself as Darwin/7.*
  # On Mac OS X 10.4, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
  # disables platform specific features beyond repair.
  # On Mac OS X 10.3, defining _POSIX_C_SOURCE or _XOPEN_SOURCE 
  # has no effect, don't bother defining them
  Darwin/@<:@6789@:>@.*)
    define_xopen_source=no;;
  # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
  # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
  # or has another value. By not (re)defining it, the defaults come in place.
  AIX/4)
    define_xopen_source=no;;
  AIX/5)
    if test `uname -r` -eq 1; then
      define_xopen_source=no
    fi
    ;;
  # On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
  # defining NI_NUMERICHOST.
  QNX/6.3.2)
    define_xopen_source=no
    ;;

esac

if test $define_xopen_source = yes
then
  # On Solaris w/ g++ it appears that _XOPEN_SOURCE has to be
  # defined precisely as g++ defines it
  # Furthermore, on Solaris 10, XPG6 requires the use of a C99
  # compiler
  case $ac_sys_system/$ac_sys_release in
    SunOS/5.8|SunOS/5.9|SunOS/5.10)
      AC_DEFINE(_XOPEN_SOURCE, 500, 
                Define to the level of X/Open that your system supports)
      ;;
    *)
      AC_DEFINE(_XOPEN_SOURCE, 600, 
                Define to the level of X/Open that your system supports)
      ;;
  esac

  # On Tru64 Unix 4.0F, defining _XOPEN_SOURCE also requires
  # definition of _XOPEN_SOURCE_EXTENDED and _POSIX_C_SOURCE, or else
  # several APIs are not declared. Since this is also needed in some
  # cases for HP-UX, we define it globally.
  # except for Solaris 10, where it must not be defined, 
  # as it implies XPG4.2
  case $ac_sys_system/$ac_sys_release in
    SunOS/5.10)
      ;;
    *)
      AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1,
      		Define to activate Unix95-and-earlier features)
      ;;
  esac

  AC_DEFINE(_POSIX_C_SOURCE, 200112L, Define to activate features from IEEE Stds 1003.1-2001)
  
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)

# And add extra plat-mac for darwin
AC_SUBST(EXTRAPLATDIR)
AC_SUBST(EXTRAMACHDEPPATH)
AC_MSG_CHECKING(EXTRAPLATDIR)
if test -z "$EXTRAPLATDIR"
then
	case $MACHDEP in
	darwin)	
		EXTRAPLATDIR="\$(PLATMACDIRS)"
		EXTRAMACHDEPPATH="\$(PLATMACPATH)"
		;;
	*) 
		EXTRAPLATDIR=""
		EXTRAMACHDEPPATH=""
		;;
	esac
fi
AC_MSG_RESULT($EXTRAPLATDIR)

# Record the configure-time value of MACOSX_DEPLOYMENT_TARGET,
# it may influence the way we can build extensions, so distutils
# needs to check it
AC_SUBST(CONFIGURE_MACOSX_DEPLOYMENT_TARGET)
AC_SUBST(EXPORT_MACOSX_DEPLOYMENT_TARGET)
CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
EXPORT_MACOSX_DEPLOYMENT_TARGET='#'

AC_MSG_CHECKING(machine type as reported by uname -m)
ac_sys_machine=`uname -m`
AC_MSG_RESULT($ac_sys_machine)

# checks for alternative programs

# compiler flags are generated in two sets, BASECFLAGS and OPT.  OPT is just
# for debug/optimization stuff.  BASECFLAGS is for flags that are required
# just to get things to compile and link.  Users are free to override OPT
# when running configure or make.  The build should not break if they do.
# BASECFLAGS should generally not be messed with, however.

# XXX shouldn't some/most/all of this code be merged with the stuff later
# on that fiddles with OPT and BASECFLAGS?
AC_MSG_CHECKING(for --without-gcc)
AC_ARG_WITH(gcc,
            AC_HELP_STRING(--without-gcc,never use gcc),
[
	case $withval in
	no)	CC=${CC:-cc}
		without_gcc=yes;;
	yes)	CC=gcc
		without_gcc=no;;
	*)	CC=$withval
		without_gcc=$withval;;
	esac], [
	case $ac_sys_system in
	AIX*)   CC=cc_r
		without_gcc=;;
	BeOS*)
		case $BE_HOST_CPU in
		ppc)
			CC=mwcc
			without_gcc=yes
			BASECFLAGS="$BASECFLAGS -export pragma"
			OPT="$OPT -O"
			LDFLAGS="$LDFLAGS -nodup"
			;;
		x86)
			CC=gcc
			without_gcc=no
			OPT="$OPT -O"
			;;
		*)
			AC_MSG_ERROR([Unknown BeOS platform "$BE_HOST_CPU"])
			;;
		esac
		AR="\$(srcdir)/Modules/ar_beos"
		RANLIB=:
		;;
    Monterey*)
        RANLIB=:
        without_gcc=;;
	*)	without_gcc=no;;
	esac])
AC_MSG_RESULT($without_gcc)

# 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_MSG_ERROR([cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling)])
fi

# Check for --with-llvm=DIRECTORY or --without-llvm.
#
# Check for this really early so we can use it to toggle LINKCC.
#
# Expected behaviour:
#   - Omit --with-llvm: use llvm-config we find in the path or $LLVM_CONFIG
#   - --with-llvm (no DIRECTORY): Same
#   - --with-llvm=DIRECTORY: use the LLVM installed in DIRECTORY
#   - --without-llvm: disable everything that requires LLVM
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
AC_ARG_VAR(LLVM_CONFIG, [LLVM configuration script])
AC_MSG_CHECKING(for --with(out)-llvm)
AC_ARG_WITH(llvm, 
            AC_HELP_STRING(--with(out)-llvm@<:@=DIRECTORY@:>@,
                           build against a preinstalled LLVM
                           or disable LLVM integration entirely. Note that
                           Python built with --without-llvm cannot load
                           extension modules built with --with-llvm or
                           vice-versa.),
            [with_llvm=$withval],
            [with_llvm=yes])

if test "$with_llvm" = "no"
then
    AC_MSG_RESULT(disabled)
    WITH_LLVM=0
else
    AC_MSG_RESULT($with_llvm)
    WITH_LLVM=1
    if test "$with_llvm" = "yes"
    then
        AC_PATH_PROG(LLVM_CONFIG, llvm-config)
        if test -z "$LLVM_CONFIG"
        then
            AC_MSG_ERROR([cannot find llvm-config on the PATH])
        fi
    else
        AC_PATH_PROG(LLVM_CONFIG, llvm-config, [], [$with_llvm/bin])
        if test -z "$LLVM_CONFIG"
        then
            AC_MSG_ERROR([cannot find llvm-config in $with_llvm/bin])
        fi
    fi

    LLVM_INC_DIR=`$LLVM_CONFIG --includedir`
    LLVM_BIN_DIR=`$LLVM_CONFIG --bindir`
    LLVM_CXXFLAGS=`$LLVM_CONFIG jit bitreader backend --cxxflags`
    LLVM_LDFLAGS=`$LLVM_CONFIG jit bitreader backend --ldflags --libs | awk '{ORS=" "} {print $0}'`
    LLVM_LIB_PATHS=`$LLVM_CONFIG jit bitreader backend --libfiles`

    AC_CHECK_FILE("$LLVM_BIN_DIR/clang",
        [], [AC_MSG_ERROR([Did not find clang in $LLVM_BIN_DIR])])
    AC_CHECK_FILE("$LLVM_BIN_DIR/opt",
        [], [AC_MSG_ERROR([Did not find opt in $LLVM_BIN_DIR])])
    AC_CHECK_FILE("$LLVM_BIN_DIR/llvm-link",
        [], [AC_MSG_ERROR([Did not find llvm-link in $LLVM_BIN_DIR])])
    AC_CHECK_FILE("$LLVM_BIN_DIR/llvm-dis",
        [], [AC_MSG_ERROR([Did not find llvm-dis in $LLVM_BIN_DIR])])

    AC_DEFINE(WITH_LLVM, 1,
        [Use LLVM for code generation. This makes things fast.])
fi
AC_SUBST(WITH_LLVM)
AC_SUBST(LLVM_INC_DIR)
AC_SUBST(LLVM_BIN_DIR)
AC_SUBST(LLVM_CXXFLAGS)
AC_SUBST(LLVM_LDFLAGS)
AC_SUBST(LLVM_LIB_PATHS)


save_CFLAGS=$CFLAGS
AC_PROG_CC
CFLAGS=$save_CFLAGS

AC_SUBST(CXX)
AC_SUBST(MAINCC)
AC_MSG_CHECKING(for --with-cxx-main=<compiler>)
AC_ARG_WITH(cxx_main,
            AC_HELP_STRING([--with-cxx-main=<compiler>],
                           [compile main() and link python executable with C++ compiler]),
[
	case $withval in
	no)	with_cxx_main=no
		MAINCC='$(CC)';;
	yes)	with_cxx_main=yes
		MAINCC='$(CXX)';;
	*)	with_cxx_main=yes
		MAINCC=$withval
		if test -z "$CXX"
		then
			CXX=$withval
		fi;;
	esac
], [
	case "$with_llvm" in
	no)	with_cxx_main=no
		MAINCC='$(CC)';;
	*)	with_cxx_main=yes
		MAINCC='$(CXX)';;
	esac
])
AC_MSG_RESULT($with_cxx_main)

if test "$with_cxx_main" = "no"
then
	if test "$with_llvm" != "no"
	then
		AC_MSG_ERROR("Cannot specify both --without-cxx-main and --with-llvm");
	fi
fi

# Use this in preference to AC_PROG_CXX, since --with-cxx-main=foo will override
# CXX.
preset_cxx="$CXX"
if test -z "$CXX"
then
        case "$CC" in
        gcc)    AC_PATH_PROG(CXX, [g++], [g++], [notfound]) ;;
        cc)     AC_PATH_PROG(CXX, [c++], [c++], [notfound]) ;;
        esac
	if test "$CXX" = "notfound"
	then
		CXX=""
	fi
fi
if test -z "$CXX"
then
	AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
	if test "$CXX" = "notfound"
	then
		CXX=""
	fi
fi
if test "$preset_cxx" != "$CXX"
then
        AC_MSG_WARN([

  By default, distutils will build C++ extension modules with "$CXX".
  If this is not intended, then set CXX on the configure command line.
  ])
fi


# checks for UNIX variants that set C preprocessor variables
AC_AIX

# Check for unsupported systems
case $ac_sys_system/$ac_sys_release in
atheos*|Linux*/1*)
   echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported.
   echo See README for details.
   exit 1;;
esac

AC_EXEEXT
AC_MSG_CHECKING(for --with-suffix)
AC_ARG_WITH(suffix,
            AC_HELP_STRING(--with-suffix=.exe, set executable suffix),
[
	case $withval in
	no)	EXEEXT=;;
	yes)	EXEEXT=.exe;;
	*)	EXEEXT=$withval;;
	esac])
AC_MSG_RESULT($EXEEXT)

# Test whether we're running on a non-case-sensitive system, in which
# case we give a warning if no ext is given
AC_SUBST(BUILDEXEEXT)
AC_MSG_CHECKING(for case-insensitive build directory)
if test ! -d CaseSensitiveTestDir; then
mkdir CaseSensitiveTestDir
fi

if test -d casesensitivetestdir
then
    AC_MSG_RESULT(yes)
    BUILDEXEEXT=.exe
else
	AC_MSG_RESULT(no)
	BUILDEXEEXT=$EXEEXT
fi
rmdir CaseSensitiveTestDir

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 -Ae";;
    esac;;
Monterey*)
    case $CC in
    cc) CC="$CC -Wl,-Bexport";;
    esac;;
SunOS*)
    # Some functions have a prototype only with that define, e.g. confstr
    AC_DEFINE(__EXTENSIONS__, 1, [Defined on Solaris to see additional function prototypes.])
    ;;
esac


AC_SUBST(LIBRARY)
AC_MSG_CHECKING(LIBRARY)
if test -z "$LIBRARY"
then
	LIBRARY='libpython$(VERSION).a'
fi
AC_MSG_RESULT($LIBRARY)

# LDLIBRARY is the name of the library to link against (as opposed to the
# name of the library into which to insert object files). BLDLIBRARY is also
# the library to link against, usually. On Mac OS X frameworks, BLDLIBRARY
# is blank as the main program is not linked directly against LDLIBRARY.
# LDLIBRARYDIR is the path to LDLIBRARY, which is made in a subdirectory. On
# systems without shared libraries, LDLIBRARY is the same as LIBRARY
# (defined in the Makefiles). On Cygwin LDLIBRARY is the import library,
# DLLLIBRARY is the shared (i.e., DLL) library.
# 
# RUNSHARED is used to run shared python without installed libraries
#
# INSTSONAME is the name of the shared library that will be use to install
# on the system - some systems like version suffix, others don't
AC_SUBST(LDLIBRARY)
AC_SUBST(DLLLIBRARY)
AC_SUBST(BLDLIBRARY)
AC_SUBST(LDLIBRARYDIR)
AC_SUBST(INSTSONAME)
AC_SUBST(RUNSHARED)
LDLIBRARY="$LIBRARY"
BLDLIBRARY='$(LDLIBRARY)'
INSTSONAME='$(LDLIBRARY)'
DLLLIBRARY=''
LDLIBRARYDIR=''
RUNSHARED=''

# LINKCC is the command that links the python executable -- this depends on
# the values of --with-llvm and --with-cxx-main.
# This is altered for AIX in order to build the export list before
# linking. If --without-llvm was specified, we use $(CC) to avoid depending on
# libstdc++.
AC_SUBST(LINKCC)
AC_MSG_CHECKING(LINKCC)
if test -z "$LINKCC"
then
	LINKCC='$(PURIFY) $(MAINCC)'
	case $ac_sys_system in
	AIX*)
	   exp_extra="\"\""
	   if test $ac_sys_release -ge 5 -o \
		   $ac_sys_release -eq 4 -a `uname -r` -ge 2 ; then
	       exp_extra="."
	   fi
	   LINKCC="\$(srcdir)/Modules/makexp_aix Modules/python.exp $exp_extra \$(LIBRARY); $LINKCC";;
	Monterey64*)
	   LINKCC="$LINKCC -L/usr/lib/ia64l64";;
	QNX*)
	   # qcc must be used because the other compilers do not
	   # support -N.
	   LINKCC=qcc;;
	esac
fi
AC_MSG_RESULT($LINKCC)

AC_MSG_CHECKING(for --enable-shared)
AC_ARG_ENABLE(shared,
              AC_HELP_STRING(--enable-shared, disable/enable building shared python library))

if test -z "$enable_shared"
then 
  case $ac_sys_system in
  CYGWIN* | atheos*)
    enable_shared="yes";;
  *)
    enable_shared="no";;
  esac
fi
AC_MSG_RESULT($enable_shared)

AC_MSG_CHECKING(for --enable-profiling)
AC_ARG_ENABLE(profiling,
              AC_HELP_STRING(--enable-profiling, enable C-level code profiling),
[ac_save_cc="$CC"
 CC="$CC -pg"
 AC_TRY_RUN([int main() { return 0; }],
   ac_enable_profiling="yes",
   ac_enable_profiling="no",
   ac_enable_profiling="no")
 CC="$ac_save_cc"])
AC_MSG_RESULT($ac_enable_profiling)

case "$ac_enable_profiling" in
    "yes")
	BASECFLAGS="-pg $BASECFLAGS"
	LDFLAGS="-pg $LDFLAGS"
    ;;
esac

AC_MSG_CHECKING(LDLIBRARY)

# MacOSX framework builds need more magic. LDLIBRARY is the dynamic
# library that we build, but we do not want to link against it (we
# will find it with a -framework option). For this reason there is an
# extra variable BLDLIBRARY against which Python and the extension
# modules are linked, BLDLIBRARY. This is normally the same as
# LDLIBRARY, but empty for MacOSX framework builds.
if test "$enable_framework"
then
  LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
  RUNSHARED=DYLD_FRAMEWORK_PATH="$(shell pwd):$DYLD_FRAMEWORK_PATH"
  BLDLIBRARY=''
else
  BLDLIBRARY='$(LDLIBRARY)'
fi  

# Other platforms follow
if test $enable_shared = "yes"; then
  AC_DEFINE(Py_ENABLE_SHARED, 1, [Defined if Python is built as a shared library.])
  case $ac_sys_system in
    BeOS*)
          LDLIBRARY='libpython$(VERSION).so'
          ;;
    CYGWIN*)
          LDLIBRARY='libpython$(VERSION).dll.a'
          DLLLIBRARY='libpython$(VERSION).dll'
          ;;
    SunOS*)
	  LDLIBRARY='libpython$(VERSION).so'
	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
	  RUNSHARED='LD_LIBRARY_PATH=$(shell pwd):${LD_LIBRARY_PATH}'
	  INSTSONAME="$LDLIBRARY".$SOVERSION
          ;;
    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*)
	  LDLIBRARY='libpython$(VERSION).so'
	  BLDLIBRARY='-L. -lpython$(VERSION)'
	  RUNSHARED='LD_LIBRARY_PATH=$(shell pwd):${LD_LIBRARY_PATH}'
	  case $ac_sys_system in
	      FreeBSD*)
		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
		;;
	  esac
	  INSTSONAME="$LDLIBRARY".$SOVERSION
	  ;;
    hp*|HP*)
	  case `uname -m` in
		ia64)
			LDLIBRARY='libpython$(VERSION).so'
			;;
		*)
			LDLIBRARY='libpython$(VERSION).sl'
			;;
	  esac
	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
	  RUNSHARED='SHLIB_PATH=$(shell pwd):${SHLIB_PATH}'
	  ;;
    OSF*)
	  LDLIBRARY='libpython$(VERSION).so'
	  BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
	  RUNSHARED='LD_LIBRARY_PATH=$(shell pwd):${LD_LIBRARY_PATH}'
	  ;;
    atheos*)
	  LDLIBRARY='libpython$(VERSION).so'
	  BLDLIBRARY='-L. -lpython$(VERSION)'
	  RUNSHARED='DLL_PATH=$(shell pwd):${DLL_PATH:-/atheos/sys/libs:/atheos/autolnk/lib}'
	  ;;
    Darwin*)
    	LDLIBRARY='libpython$(VERSION).dylib'
	BLDLIBRARY='-L. -lpython$(VERSION)'
	RUNSHARED='DYLD_LIBRARY_PATH=$(shell pwd):${DYLD_LIBRARY_PATH}'
	;;

  esac
else # shared is disabled
  case $ac_sys_system in
    CYGWIN*)
          BLDLIBRARY='$(LIBRARY)'
          LDLIBRARY='libpython$(VERSION).dll.a'
          ;;
  esac
fi

AC_MSG_RESULT($LDLIBRARY)

AC_PROG_RANLIB
AC_SUBST(AR)
AC_CHECK_PROGS(AR, ar aal, ar)

AC_SUBST(SVNVERSION)
AC_CHECK_PROG(SVNVERSION, svnversion, found, not-found)
if test $SVNVERSION = found
then
	SVNVERSION="svnversion \$(srcdir)"
else
	SVNVERSION="echo Unversioned directory"
fi

case $MACHDEP in
bsdos*|hp*|HP*)
	# install -d does not work on BSDI or HP-UX
	if test -z "$INSTALL"
	then
		INSTALL="${srcdir}/install-sh -c"
	fi
esac
AC_PROG_INSTALL

# Not every filesystem supports hard links
AC_SUBST(LN)
if test -z "$LN" ; then
	case $ac_sys_system in
		BeOS*) LN="ln -s";;
		CYGWIN*) LN="ln -s";;
		atheos*) LN="ln -s";;
		*) LN=ln;;
	esac
fi

# Check for --with-pydebug
AC_MSG_CHECKING(for --with-pydebug)
AC_ARG_WITH(pydebug, 
            AC_HELP_STRING(--with-pydebug, build with Py_DEBUG defined),
[
if test "$withval" != no
then 
  AC_DEFINE(Py_DEBUG, 1, 
  [Define if you want to build an interpreter with many run-time checks.]) 
  AC_MSG_RESULT(yes); 
  Py_DEBUG='true'
else AC_MSG_RESULT(no); Py_DEBUG='false'
fi],
[AC_MSG_RESULT(no)])

if test "$with_llvm" != "no"
then
    LLVM_BUILD_MODE=`$LLVM_CONFIG --build-mode`
    if echo $LLVM_BUILD_MODE | grep -e -Asserts &>/dev/null
    then
        if test "$Py_DEBUG" = "true"
        then
            AC_MSG_ERROR([--with-pydebug requires +Asserts LLVM. Got "$LLVM_BUILD_MODE"])
        fi
    else
        if test "$Py_DEBUG" != "true"
        then
            AC_MSG_ERROR([--without-pydebug requires -Asserts LLVM. Got "$LLVM_BUILD_MODE"])
        fi
    fi
fi

# XXX Shouldn't the code above that fiddles with BASECFLAGS and OPT be
# merged with this chunk of code?

# Optimizer/debugger flags
# ------------------------
# (The following bit of code is complicated enough - please keep things
# indented properly.  Just pretend you're editing Python code. ;-)

# There are two parallel sets of case statements below, one that checks to
# see if OPT was set and one that does BASECFLAGS setting based upon
# compiler and platform.  BASECFLAGS tweaks need to be made even if the
# user set OPT.

# tweak OPT based on compiler and platform, only if the user didn't set
# it on the command line
AC_SUBST(OPT)
if test -z "$OPT"
then
    case $GCC in
    yes)
	case $ac_cv_prog_cc_g in
	yes)
	    if test "$Py_DEBUG" = 'true' ; then
		# Optimization messes up debuggers, so turn it off for
		# debug builds.
		OPT="-g"
	    else
		OPT="-g -O3"
	    fi
	    ;;
	*)
	    OPT="-O3"
	    ;;
	esac
	case $ac_sys_system in
	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
	    ;;
        esac
	;;

    *)
	OPT="-O"
	;;
    esac

    # The current (beta) Monterey compiler dies with optimizations
    # XXX what is Monterey? Does it still die w/ -O? Can we get rid of this?
    case $ac_sys_system in
	Monterey*)
	    OPT=""
	    ;;
    esac

fi

AC_SUBST(BASECFLAGS)

# The -arch flags for universal builds on OSX
UNIVERSAL_ARCH_FLAGS=
AC_SUBST(UNIVERSAL_ARCH_FLAGS)

# tweak BASECFLAGS based on compiler and platform
case $GCC in
yes)
    # Python violates C99 rules, by casting between incompatible
    # pointer types. GCC may generate bad code as a result of that,
    # so use -fno-strict-aliasing if supported.
    AC_MSG_CHECKING(whether $CC accepts -fno-strict-aliasing)
     ac_save_cc="$CC"
     CC="$CC -fno-strict-aliasing"
     AC_TRY_RUN([int main() { return 0; }],
     ac_cv_no_strict_aliasing_ok=yes,
     ac_cv_no_strict_aliasing_ok=no,
     ac_cv_no_strict_aliasing_ok=no)
     CC="$ac_save_cc"
    AC_MSG_RESULT($ac_cv_no_strict_aliasing_ok)
    if test $ac_cv_no_strict_aliasing_ok = yes
    then
      BASECFLAGS="$BASECFLAGS -fno-strict-aliasing"
    fi

    # Python violates C99 rules by treating signed overflow as
    # 2s-compliment. GCC 4+ can generate bad code because of that, so
    # use -fwrapv if it's supported
    AC_MSG_CHECKING(whether $CC accepts -fwrapv)
     ac_save_cc="$CC"
     CC="$CC -fwrapv"
     AC_TRY_RUN([int main() { return 0; }],
     ac_cv_fwrapv_ok=yes,
     ac_cv_fwrapv_ok=no,
     ac_cv_fwrapv_ok=no)
     CC="$ac_save_cc"
    AC_MSG_RESULT($ac_cv_fwrapv_ok)
    if test $ac_cv_fwrapv_ok = yes
    then
      BASECFLAGS="$BASECFLAGS -fwrapv"
    fi

    BASECFLAGS="$BASECFLAGS -Wall"

    if test "$CC" != 'g++' ; then
        STRICT_PROTO="-Wstrict-prototypes"
    fi

    # if using gcc on alpha, use -mieee to get (near) full IEEE 754
    # support.  Without this, treatment of subnormals doesn't follow
    # the standard.
    case $ac_sys_machine in
         alpha*)
                BASECFLAGS="$BASECFLAGS -mieee"
                ;;
    esac

    case $ac_sys_system in
	SCO_SV*)
	    BASECFLAGS="$BASECFLAGS -m486 -DSCO5"
	    ;;
	# is there any other compiler on Darwin besides gcc?
	Darwin*)
	    # -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd
	    # used to be here, but non-Apple gcc doesn't accept them.


	    if test "${enable_universalsdk}"; then
		UNIVERSAL_ARCH_FLAGS=""
	        if test "$UNIVERSAL_ARCHS" = "32-bit" ; then
		   UNIVERSAL_ARCH_FLAGS="-arch ppc -arch i386"
		   ARCH_RUN_32BIT=""

	         elif test "$UNIVERSAL_ARCHS" = "64-bit" ; then
		   UNIVERSAL_ARCH_FLAGS="-arch ppc64 -arch x86_64"
		   ARCH_RUN_32BIT="true"

	         elif test "$UNIVERSAL_ARCHS" = "all" ; then
		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch ppc64 -arch x86_64"
		   ARCH_RUN_32BIT="arch -i386 -ppc"

	         elif test "$UNIVERSAL_ARCHS" = "intel" ; then
		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch x86_64"
		   ARCH_RUN_32BIT="arch -i386"

	         elif test "$UNIVERSAL_ARCHS" = "3-way" ; then
		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch x86_64"
		   ARCH_RUN_32BIT="arch -i386 -ppc"

		 else
	           AC_MSG_ERROR([proper usage is --with-universal-arch=32-bit|64-bit|all|intel|3-way])

		 fi


		BASECFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${BASECFLAGS}"
		tgt=`sw_vers -productVersion | sed 's/\(10\.[[0-9]]*\).*/\1/'`
		if test "${UNIVERSALSDK}" != "/" -a "${tgt}" '>' '10.4' ; then
			CFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${CFLAGS}"
		fi
	    fi

	    # Calculate the right deployment target for this build.
	    #
	    cur_target=`sw_vers -productVersion | sed 's/\(10\.[[0-9]]*\).*/\1/'`
	    if test ${cur_target} '>' 10.2; then
		    cur_target=10.3
		    if test ${enable_universalsdk}; then
			    if test "${UNIVERSAL_ARCHS}" = "all"; then
				    # Ensure that the default platform for a 
				    # 4-way universal build is OSX 10.5, 
				    # that's the first OS release where 
				    # 4-way builds make sense.
				    cur_target='10.5'

			    elif test "${UNIVERSAL_ARCHS}" = "3-way"; then
				    cur_target='10.5'

			    elif test "${UNIVERSAL_ARCHS}" = "intel"; then
				    cur_target='10.5'

			    elif test "${UNIVERSAL_ARCHS}" = "64-bit"; then
				    cur_target='10.5'
			    fi
		    else
			    if test `arch` = "i386"; then
				    # On Intel macs default to a deployment
				    # target of 10.4, that's the first OSX
				    # release with Intel support.
				    cur_target="10.4"
			    fi
		    fi
	    fi
	    CONFIGURE_MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET-${cur_target}}
	    
	    # Make sure that MACOSX_DEPLOYMENT_TARGET is set in the 
	    # environment with a value that is the same as what we'll use
	    # in the Makefile to ensure that we'll get the same compiler
	    # environment during configure and build time.
	    MACOSX_DEPLOYMENT_TARGET="$CONFIGURE_MACOSX_DEPLOYMENT_TARGET"
	    export MACOSX_DEPLOYMENT_TARGET
	    EXPORT_MACOSX_DEPLOYMENT_TARGET=''

	    ;;
	OSF*)
	    BASECFLAGS="$BASECFLAGS -mieee"
	    ;;
    esac
    ;;

*)
    case $ac_sys_system in
    OpenUNIX*|UnixWare*)
	BASECFLAGS="$BASECFLAGS -K pentium,host,inline,loop_unroll,alloca "
	;;
    OSF*)
	BASECFLAGS="$BASECFLAGS -ieee -std"
    	;;
    SCO_SV*)
	BASECFLAGS="$BASECFLAGS -belf -Ki486 -DSCO5"
	;;
    esac
    ;;
esac

if test "$Py_DEBUG" = 'true'; then
  :
else
  OPT="-DNDEBUG $OPT"
fi

if test "$ac_arch_flags"
then
	BASECFLAGS="$BASECFLAGS $ac_arch_flags"
fi

# disable check for icc since it seems to pass, but generates a warning
if test "$CC" = icc
then
  ac_cv_opt_olimit_ok=no
fi

AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)
AC_CACHE_VAL(ac_cv_opt_olimit_ok,
[ac_save_cc="$CC"
CC="$CC -OPT:Olimit=0"
AC_TRY_RUN([int main() { return 0; }],
  ac_cv_opt_olimit_ok=yes,
  ac_cv_opt_olimit_ok=no,
  ac_cv_opt_olimit_ok=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_opt_olimit_ok)
if test $ac_cv_opt_olimit_ok = yes; then
    case $ac_sys_system in
	# XXX is this branch needed? On MacOSX 10.2.2 the result of the
	# olimit_ok test is "no".  Is it "yes" in some other Darwin-esque
	# environment?
        Darwin*)
	    ;;
        *)
	    BASECFLAGS="$BASECFLAGS -OPT:Olimit=0"
	    ;;
    esac
else
  AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)
  AC_CACHE_VAL(ac_cv_olimit_ok,
  [ac_save_cc="$CC"
  CC="$CC -Olimit 1500"
  AC_TRY_RUN([int main() { return 0; }],
    ac_cv_olimit_ok=yes,
    ac_cv_olimit_ok=no,
    ac_cv_olimit_ok=no)
  CC="$ac_save_cc"])
  AC_MSG_RESULT($ac_cv_olimit_ok)
  if test $ac_cv_olimit_ok = yes; then
    BASECFLAGS="$BASECFLAGS -Olimit 1500"
  fi
fi

# Check whether GCC supports PyArg_ParseTuple format
if test "$GCC" = "yes"
then
  AC_MSG_CHECKING(whether gcc supports ParseTuple __format__)
  save_CFLAGS=$CFLAGS
  CFLAGS="$CFLAGS -Werror"
  AC_TRY_COMPILE([
    void f(char*,...)__attribute((format(PyArg_ParseTuple, 1, 2)));
  ],,
  AC_DEFINE(HAVE_ATTRIBUTE_FORMAT_PARSETUPLE, 1, [Define if GCC supports __attribute__((format(PyArg_ParseTuple, 2, 3)))])
  AC_MSG_RESULT(yes),
  AC_MSG_RESULT(no)
  )
  CFLAGS=$save_CFLAGS
fi

# On some compilers, pthreads are available without further options
# (e.g. MacOS X). On some of these systems, the compiler will not
# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
# So we have to see first whether pthreads are available without
# options before we can check whether -Kpthread improves anything.
AC_MSG_CHECKING(whether pthreads are available without options)
AC_CACHE_VAL(ac_cv_pthread_is_default,
[AC_TRY_RUN([
#include <pthread.h>

void* routine(void* p){return NULL;}

int main(){
  pthread_t p;
  if(pthread_create(&p,NULL,routine,NULL)!=0)
    return 1;
  (void)pthread_detach(p);
  return 0;
}
],
[
  ac_cv_pthread_is_default=yes
  ac_cv_kthread=no
  ac_cv_pthread=no
],
  ac_cv_pthread_is_default=no,
  ac_cv_pthread_is_default=no)
])
AC_MSG_RESULT($ac_cv_pthread_is_default)


if test $ac_cv_pthread_is_default = yes 
then
  ac_cv_kpthread=no
else
# -Kpthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -Kpthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -Kpthread)
AC_CACHE_VAL(ac_cv_kpthread,
[ac_save_cc="$CC"
CC="$CC -Kpthread"
AC_TRY_RUN([
#include <pthread.h>

void* routine(void* p){return NULL;}

int main(){
  pthread_t p;
  if(pthread_create(&p,NULL,routine,NULL)!=0)
    return 1;
  (void)pthread_detach(p);
  return 0;
}
],
  ac_cv_kpthread=yes,
  ac_cv_kpthread=no,
  ac_cv_kpthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_kpthread)
fi

if test $ac_cv_kpthread = no -a $ac_cv_pthread_is_default = no
then
# -Kthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -Kthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -Kthread)
AC_CACHE_VAL(ac_cv_kthread,
[ac_save_cc="$CC"
CC="$CC -Kthread"
AC_TRY_RUN([
#include <pthread.h>

void* routine(void* p){return NULL;}

int main(){
  pthread_t p;
  if(pthread_create(&p,NULL,routine,NULL)!=0)
    return 1;
  (void)pthread_detach(p);
  return 0;
}
],
  ac_cv_kthread=yes,
  ac_cv_kthread=no,
  ac_cv_kthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_kthread)
fi

if test $ac_cv_kthread = no -a $ac_cv_pthread_is_default = no
then
# -pthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -pthread,
# so we need to run a program to see whether it really made the
# function available.
AC_MSG_CHECKING(whether $CC accepts -pthread)
AC_CACHE_VAL(ac_cv_thread,
[ac_save_cc="$CC"
CC="$CC -pthread"
AC_TRY_RUN([
#include <pthread.h>

void* routine(void* p){return NULL;}

int main(){
  pthread_t p;
  if(pthread_create(&p,NULL,routine,NULL)!=0)
    return 1;
  (void)pthread_detach(p);
  return 0;
}
],
  ac_cv_pthread=yes,
  ac_cv_pthread=no,
  ac_cv_pthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_pthread)
fi

# If we have set a CC compiler flag for thread support then
# check if it works for CXX, too.
ac_cv_cxx_thread=no
if test ! -z "$CXX"
then
AC_MSG_CHECKING(whether $CXX also accepts flags for thread support)
ac_save_cxx="$CXX"

if test "$ac_cv_kpthread" = "yes"
then
  CXX="$CXX -Kpthread"  
  ac_cv_cxx_thread=yes
elif test "$ac_cv_kthread" = "yes"
then
  CXX="$CXX -Kthread"
  ac_cv_cxx_thread=yes
elif test "$ac_cv_pthread" = "yes"
then 
  CXX="$CXX -pthread"
  ac_cv_cxx_thread=yes
fi

if test $ac_cv_cxx_thread = yes
then
  echo 'void foo();int main(){foo();}void foo(){}' > conftest.$ac_ext
  $CXX -c conftest.$ac_ext 2>&5
  if $CXX -o conftest$ac_exeext conftest.$ac_objext 2>&5 \
     && test -s conftest$ac_exeext && ./conftest$ac_exeext
  then
    ac_cv_cxx_thread=yes
  else
    ac_cv_cxx_thread=no
  fi
  rm -fr conftest*
fi
AC_MSG_RESULT($ac_cv_cxx_thread)
fi
CXX="$ac_save_cxx"

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(asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
fcntl.h grp.h \
ieeefp.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
shadow.h signal.h stdint.h stropts.h termios.h thread.h \
unistd.h utime.h \
sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
sys/lock.h sys/mkdev.h sys/modem.h \
sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
sys/termio.h sys/time.h \
sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
bluetooth/bluetooth.h linux/tipc.h)
AC_HEADER_DIRENT
AC_HEADER_MAJOR

# On Solaris, term.h requires curses.h
AC_CHECK_HEADERS(term.h,,,[
#ifdef HAVE_CURSES_H
#include <curses.h>
#endif
])

# On Linux, netlink.h requires asm/types.h
AC_CHECK_HEADERS(linux/netlink.h,,,[
#ifdef HAVE_ASM_TYPES_H
#include <asm/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])

# 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, [Define to 'long' if <time.h> doesn't define.])
])
AC_MSG_RESULT($was_it_defined)

# Check whether using makedev requires defining _OSF_SOURCE
AC_MSG_CHECKING(for makedev)
AC_TRY_LINK([#include <sys/types.h> ],
	    [ makedev(0, 0) ],
	    ac_cv_has_makedev=yes,
	    ac_cv_has_makedev=no)
if test "$ac_cv_has_makedev" = "no"; then
    # we didn't link, try if _OSF_SOURCE will allow us to link
    AC_TRY_LINK([
#define _OSF_SOURCE 1
#include <sys/types.h>
    ],
    [ makedev(0, 0) ],
    ac_cv_has_makedev=yes,
    ac_cv_has_makedev=no)
    if test "$ac_cv_has_makedev" = "yes"; then
        AC_DEFINE(_OSF_SOURCE, 1, [Define _OSF_SOURCE to get the makedev macro.])
    fi
fi
AC_MSG_RESULT($ac_cv_has_makedev)
if test "$ac_cv_has_makedev" = "yes"; then
    AC_DEFINE(HAVE_MAKEDEV, 1, [Define this if you have the makedev macro.])
fi

# Enabling LFS on Solaris (2.6 to 9) with gcc 2.95 triggers a bug in
# the system headers: If _XOPEN_SOURCE and _LARGEFILE_SOURCE are
# defined, but the compiler does not support pragma redefine_extname,
# and _LARGEFILE64_SOURCE is not defined, the headers refer to 64-bit
# structures (such as rlimit64) without declaring them. As a
# work-around, disable LFS on such configurations

use_lfs=yes
AC_MSG_CHECKING(Solaris LFS bug)
AC_TRY_COMPILE([
#define _LARGEFILE_SOURCE 1
#define _FILE_OFFSET_BITS 64
#include <sys/resource.h>
],struct rlimit foo;,sol_lfs_bug=no,sol_lfs_bug=yes)
AC_MSG_RESULT($sol_lfs_bug)
if test "$sol_lfs_bug" = "yes"; then
  use_lfs=no
fi

if test "$use_lfs" = "yes"; then
# Two defines needed to enable largefile support on various platforms
# These may affect some typedefs
AC_DEFINE(_LARGEFILE_SOURCE, 1, 
[This must be defined on some systems to enable large file support.])
AC_DEFINE(_FILE_OFFSET_BITS, 64,
[This must be set to 64 on some systems to enable large file support.])
fi

# 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
AC_CHECK_TYPE(ssize_t,
  AC_DEFINE(HAVE_SSIZE_T, 1, Define if your compiler provides ssize_t),,)

# Sizes of various common basic types
# ANSI C requires sizeof(char) == 1, so no need to check it
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(void *, 4)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(fpos_t, 4)
AC_CHECK_SIZEOF(size_t, 4)
AC_CHECK_SIZEOF(pid_t, 4)

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, 1, [Define this if you have the type long long.]) 
  have_long_long=yes
])
AC_MSG_RESULT($have_long_long)
if test "$have_long_long" = yes ; then
AC_CHECK_SIZEOF(long long, 8)
fi

AC_MSG_CHECKING(for long double support)
have_long_double=no
AC_TRY_COMPILE([], [long double x; x = (long double)0.;], [
  AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define this if you have the type long double.])
  have_long_double=yes
])
AC_MSG_RESULT($have_long_double)
if test "$have_long_double" = yes ; then
AC_CHECK_SIZEOF(long double, 12)
fi

AC_MSG_CHECKING(for _Bool support)
have_c99_bool=no
AC_TRY_COMPILE([], [_Bool x; x = (_Bool)0;], [
  AC_DEFINE(HAVE_C99_BOOL, 1, [Define this if you have the type _Bool.]) 
  have_c99_bool=yes
])
AC_MSG_RESULT($have_c99_bool)
if test "$have_c99_bool" = yes ; then
AC_CHECK_SIZEOF(_Bool, 1)
fi

AC_CHECK_TYPES(uintptr_t, 
   [AC_CHECK_SIZEOF(uintptr_t, 4)], 
   [], [#ifdef HAVE_STDINT_H
        #include <stdint.h>
        #endif])


# 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_cv_sizeof_off_t=4)
])
AC_MSG_RESULT($ac_cv_sizeof_off_t)
AC_DEFINE_UNQUOTED(SIZEOF_OFF_T, $ac_cv_sizeof_off_t,
[The number of bytes in an 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, 1, 
  [Defined to enable large file support when an off_t is bigger than a long
   and long long is available and at least as big as an off_t. You may need
   to add some flags for configuration and compilation to enable this mode.
   (For Solaris and Linux, the necessary defines are already defined.)])
  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_cv_sizeof_time_t=4)
])
AC_MSG_RESULT($ac_cv_sizeof_time_t)
AC_DEFINE_UNQUOTED(SIZEOF_TIME_T, $ac_cv_sizeof_time_t, 
[The number of bytes in a time_t.])


# if have pthread_t then define SIZEOF_PTHREAD_T
ac_save_cc="$CC"
if test "$ac_cv_kpthread" = "yes"
then CC="$CC -Kpthread"
elif test "$ac_cv_kthread" = "yes"
then CC="$CC -Kthread"
elif test "$ac_cv_pthread" = "yes"
then CC="$CC -pthread"
fi
AC_MSG_CHECKING(for pthread_t)
have_pthread_t=no
AC_TRY_COMPILE([#include <pthread.h>], [pthread_t x; x = *(pthread_t*)0;], have_pthread_t=yes)
AC_MSG_RESULT($have_pthread_t)
if test "$have_pthread_t" = yes ; then
  # AC_CHECK_SIZEOF() doesn't include <pthread.h>.
  AC_MSG_CHECKING(size of pthread_t)
  AC_CACHE_VAL(ac_cv_sizeof_pthread_t,
  [AC_TRY_RUN([#include <stdio.h>
#include <pthread.h>
  main()
  {
    FILE *f=fopen("conftestval", "w");
    if (!f) exit(1);
    fprintf(f, "%d\n", sizeof(pthread_t));
    exit(0);
  }],
  ac_cv_sizeof_pthread_t=`cat conftestval`,
  ac_cv_sizeof_pthread_t=0,
  ac_cv_sizeof_pthread_t=4)
  ])
  AC_MSG_RESULT($ac_cv_sizeof_pthread_t)
  AC_DEFINE_UNQUOTED(SIZEOF_PTHREAD_T, $ac_cv_sizeof_pthread_t,
   [The number of bytes in a pthread_t.])
fi
CC="$ac_save_cc"

AC_MSG_CHECKING(for --enable-toolbox-glue)
AC_ARG_ENABLE(toolbox-glue,
              AC_HELP_STRING(--enable-toolbox-glue, disable/enable MacOSX glue code for extensions))

if test -z "$enable_toolbox_glue"
then 
	case $ac_sys_system/$ac_sys_release in
	Darwin/*)
		enable_toolbox_glue="yes";;
	*)
		enable_toolbox_glue="no";;
	esac
fi
case "$enable_toolbox_glue" in
yes)
	extra_machdep_objs="Python/mactoolboxglue.o"
	extra_undefs="-u _PyMac_Error"
	AC_DEFINE(USE_TOOLBOX_OBJECT_GLUE, 1,
         [Define if you want to use MacPython modules on MacOSX in unix-Python.])
	;;
*)
	extra_machdep_objs=""
	extra_undefs=""
	;;
esac
AC_MSG_RESULT($enable_toolbox_glue)


AC_SUBST(OTHER_LIBTOOL_OPT)
case $ac_sys_system/$ac_sys_release in
  Darwin/@<:@01567@:>@\..*) 
    OTHER_LIBTOOL_OPT="-prebind -seg1addr 0x10000000"
    ;;
  Darwin/*)
    OTHER_LIBTOOL_OPT=""
    ;;
esac


ARCH_RUN_32BIT=""
AC_SUBST(LIBTOOL_CRUFT)
case $ac_sys_system/$ac_sys_release in
  Darwin/@<:@01567@:>@\..*) 
    LIBTOOL_CRUFT="-framework System -lcc_dynamic"
    if test "${enable_universalsdk}"; then
	    :
    else
        LIBTOOL_CRUFT="${LIBTOOL_CRUFT} -arch_only `arch`"
    fi
    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
  Darwin/*)
    gcc_version=`gcc -v 2>&1 |  grep version | cut -d\  -f3`
    if test ${gcc_version} '<' 4.0
        then
            LIBTOOL_CRUFT="-lcc_dynamic"
        else 
            LIBTOOL_CRUFT=""
    fi
    AC_TRY_RUN([
    #include <unistd.h>
    int main(int argc, char*argv[])
    {
      if (sizeof(long) == 4) {
    	  return 0;
      } else {
      	  return 1;
      }
    }
    ], ac_osx_32bit=yes,
       ac_osx_32bit=no,
       ac_osx_32bit=yes)
    
    if test "${ac_osx_32bit}" = "yes"; then
    	case `arch` in
    	i386) 
    		MACOSX_DEFAULT_ARCH="i386" 
    		;;
    	ppc) 
    		MACOSX_DEFAULT_ARCH="ppc" 
    		;;
    	*)
    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
    		;;
    	esac
    else
    	case `arch` in
    	i386) 
    		MACOSX_DEFAULT_ARCH="x86_64" 
    		;;
    	ppc) 
    		MACOSX_DEFAULT_ARCH="ppc64" 
    		;;
    	*)
    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
    		;;
    	esac

	#ARCH_RUN_32BIT="true"
    fi

    LIBTOOL_CRUFT=$LIBTOOL_CRUFT" -lSystem -lSystemStubs -arch_only ${MACOSX_DEFAULT_ARCH}"
    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
esac

AC_MSG_CHECKING(for --enable-framework)
if test "$enable_framework"
then
	BASECFLAGS="$BASECFLAGS -fno-common -dynamic"
	# -F. is needed to allow linking to the framework while 
	# in the build location.
	AC_DEFINE(WITH_NEXT_FRAMEWORK, 1, 
         [Define if you want to p…