dnl -*-m4-*-
dnl configure.in for ICU
dnl Copyright (c) 1999-2000, International Business Machines Corporation and
dnl others. All Rights Reserved.
dnl Stephen F. Booth, heavily modified by Yves and others

dnl $Id: configure.in,v 1.143 2001/11/30 17:38:56 grhoten-oss Exp $

dnl Process this file with autoconf to produce a configure script
AC_INIT(common/unicode/utypes.h)

AC_CONFIG_HEADER(common/icucfg.h)
PACKAGE="icu"
AC_SUBST(PACKAGE)

AC_MSG_CHECKING(for ICU version numbers)

changequote(<<, >>)dnl

dnl Get the ICU version from uversion.h or other headers
geticuversion() {
    sed -n 's/^[ 	]*#[ 	]*define[ 	]*U_ICU_VERSION[ 	]*"\([^"]*\)".*/\1/p' "$@"
}
VERSION=`geticuversion $srcdir/common/unicode/uversion.h`
if test x"$VERSION" = x; then
    VERSION=`geticuversion $srcdir/common/unicode/*.h`
    if test x"$VERSION" = x; then
        AC_MSG_ERROR(Cannot determine ICU version number from header files)
    fi
fi
dnl Compute a reasonable library version from the release version. This is
dnl very bad, but that's wanted... We want to make sure that the LIB_VERSION
dnl has at least a dot in it, so we'll add a .0 if needed.
LIB_VERSION=`echo $VERSION | sed -e 's/\.//' -e 's/^\([^.]*\)$/\1.0/'`
LIB_VERSION_MAJOR=`echo $LIB_VERSION | sed 's/\..*//'`
changequote([, ])dnl
AC_SUBST(VERSION)
AC_SUBST(LIB_VERSION)
AC_SUBST(LIB_VERSION_MAJOR)
AC_MSG_RESULT([release $VERSION, library $LIB_VERSION])

UNICODE_VERSION="3.1.1"
AC_SUBST(UNICODE_VERSION)

thedatadir=`eval echo $datadir`
AC_SUBST(thedatadir)
thelibdir=`test "x$exec_prefix" = xNONE && exec_prefix="$prefix"; eval echo $libdir`
AC_SUBST(thelibdir)

dnl Shouldn't need the AC_SUBST
CPPFLAGS="${CPPFLAGS} -I."
AC_SUBST(CPPFLAGS)

dnl Checks for programs
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL

# make sure install is relative to srcdir - if a script
if test "$srcdir" = "."; then
  # If srcdir isn't just ., then (srcdir) is already prepended.
  if test "${ac_install_sh}" = "${INSTALL}"; then
   INSTALL="\\\$(top_srcdir)/${ac_install_sh}"
  fi
fi

AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, true)
AC_CHECK_PROG(STRIP, strip, strip, true)

dnl Check for the platform make
AC_PATH_PROGS(U_MAKE, gmake gnumake, make)
AC_SUBST(U_MAKE)

dnl Check for doxygen to generate documentation
AC_PATH_PROG(DOXYGEN,doxygen,,$PATH:/usr/local/bin:/usr/bin)

dnl Determine how strict we want to be when compiling
AC_CHECK_STRICT_COMPILE

dnl Determine the host system and Makefile fragment
AC_CANONICAL_HOST

dnl Check if we can build and use 64-bit libraries
OLD_CPPFLAGS="${CPPFLAGS}"
AC_ARG_ENABLE(64bit-libs,
    [  --enable-64bit-libs     build 64-bit libraries [default=yes]],
    [ENABLE_64BIT_LIBS=${enableval}],
    [ENABLE_64BIT_LIBS=yes]
)
AC_CACHE_CHECK([for 64-bit executable support], ac_cv_64bit_ok,
    [ if test "$ENABLE_64BIT_LIBS" = no; then
        case "${host}" in
        *-*-hpux*)
            case "${CXX}" in
            *CC)
                CPPFLAGS="${CPPFLAGS} +DAportable"
                ;;
            esac;;
        esac
    else
        case "${host}" in
        *-*-solaris*)
            if test "$ac_cv_prog_gcc" = no; then
                SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:`
                SPARCV9=`isainfo -n 2>&1 | grep sparcv9`
                if test -z "$SOL64" && test -n "$SPARCV9"; then
                    CPPFLAGS="${CPPFLAGS} -xtarget=ultra -xarch=v9"
                    ENABLE_64BIT_LIBS=yes
                else
                    ENABLE_64BIT_LIBS=no
                fi
            else
                ENABLE_64BIT_LIBS=no
            fi
            ;;
#        *-*-aix*)
#            CPPFLAGS="${CPPFLAGS} -q64"
#            AC_TRY_RUN(int main(void) {return 0;},
#                ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no)
#            ;;
        *-*-hpux*)
            ENABLE_64BIT_LIBS=unknown
            ;;
        *)  
            ENABLE_64BIT_LIBS=no
            ;;
        esac
    fi
    ac_cv_64bit_ok="${ENABLE_64BIT_LIBS}"
    ]
)
# Don't reset the CPPFLAGS here because of HP/UX
# Individual tests that fail should reset it to OLD_CPPFLAGS.
ENABLE_64BIT_LIBS="${ac_cv_64bit_ok}"
AC_SUBST(ENABLE_64BIT_LIBS)

ICU_CHECK_MH_FRAG

hpuxcma=false

dnl Checks for libraries and other host specific stuff
dnl On HP/UX, don't link to -lm from a shared lib because it isn't
dnl  PIC (at least on 10.2)
case "${host}" in
	*-*-hpux10*)    hpuxcma=true
			AC_CHECK_LIB(m, floor, LIB_M="-lm") ;;
	*-*-hpux*) 	AC_CHECK_LIB(m, floor, LIB_M="-lm") ;;
	
	*) 		AC_CHECK_LIB(m, floor) 
			LIB_M="" ;;
esac
AC_SUBST(LIB_M)

dnl Enable/disable hpuxcma

if test $hpuxcma = false; then
 AC_ARG_ENABLE(hpuxcma,
	[  --enable-hpuxcma        build ICU with HPUX CMA threads (only ver>=11) [default=no]],
	[case "${enableval}" in
	     yes) hpuxcma=true;;
	     no) hpuxcma=false;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-hpuxcma) ;;
		esac], 
	)
fi

dnl Note, we set the conditional outside of IF for non hpux plats
ICU_CONDITIONAL(HPUX_CMA, test "$hpuxcma" = true)

dnl Should this be a nested CASE?
if test $hpuxcma = true; then
  case "${host}" in
	*-*-hpux*)	hpuxcma=true ;;
	*)		AC_MSG_ERROR(--enable-hpuxcma is not valid on this platform ${host}) ;;
  esac
fi

dnl Check whether to build shared libraries
AC_MSG_CHECKING([whether to build shared libraries])
enabled=no
AC_ARG_ENABLE(shared,
    [  --enable-shared[=PKGS]  build shared libraries [default=yes]],
    [ case "${enableval}" in
	     yes|"") enabled=yes; ENABLE_SHARED=YES ;;
	     no) ;;
	     *) ;;
    esac],
    [ENABLE_SHARED=YES]
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_SHARED)

dnl Check whether to build static libraries
AC_MSG_CHECKING([whether to build static libraries])
enabled=no
AC_ARG_ENABLE(static,
    [  --enable-static[=PKGS]  build static libraries [default=no]],
    [ case "${enableval}" in
	     yes|"") enabled=yes; ENABLE_STATIC=YES ;;
	     no) ;;
	     *) ;;
    esac],
)
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_STATIC)

AC_PROG_RANLIB


dnl Check whether to use the evil rpath or not
AC_ARG_ENABLE(rpath,
    [  --enable-rpath          use rpath when linking [default is only if necessary]],
    [ case "${enableval}" in
	     yes|"") ENABLE_RPATH=YES ;;
	     no) ;;
	     *) ;;
    esac],
    [ENABLE_RPATH=NO]
)
AC_SUBST(ENABLE_RPATH)


dnl set up U_INLINE.  
dnl Copy the definition of AC_C_INLINE, with slight mods.
dnl
AC_CACHE_CHECK([for definition of U_INLINE for C], ac_cv_c_inline,
[ac_cv_c_inline=no
for ac_kw in inline __inline__ __inline; do
  AC_TRY_COMPILE(, [} $ac_kw foo() {], [ac_cv_c_inline=$ac_kw; break])
  done
  ])
case "$ac_cv_c_inline" in
      yes)       U_INLINE= "inline" ;;
	  no )       U_INLINE= ;;
	    *)       U_INLINE=$ac_cv_c_inline ;;
esac
AC_SUBST(U_INLINE)

threads=true

dnl Enable/disable threads
AC_ARG_ENABLE(threads,
	[  --enable-threads        build ICU with threads [default=yes]],
	[case "${enableval}" in
		yes) threads=true ;;
		no)  threads=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-threads) ;;
		esac], 
	threads=true)
ICU_CONDITIONAL(THREADS, test "$threads" = true)

ICU_USE_THREADS=0

dnl Test for HPUX cma threads first.. 
if test $hpuxcma = true; then
 dnl HPUX cma case
 if test $threads = true; then
  AC_CHECK_LIB(cma, pthread_create)
  if test $ac_cv_lib_cma_pthread_create = yes; then
   ICU_USE_THREADS=1
  fi
 fi
else 
 dnl For Compaq Tru64 (OSF1), we must look for pthread_attr_init
 dnl and must do this before seaching for pthread_mutex_destroy, or
 dnl we will pick up libpthreads.so not libpthread.so
 dnl If this fails, then we must test for HPUX specials, before
 dnl moving on to a more generic test

 AC_CHECK_LIB(pthread, pthread_attr_init)
 if test $ac_cv_lib_pthread_pthread_attr_init = yes; then
  ICU_USE_THREADS=1
 else
  if test $threads = true; then

   dnl Locate the right library for POSIX threads. We look for the
   dnl symbols in the libraries first, because on Solaris libc provides
   dnl pthread_create but libpthread has the real code :(
   dnl AIX uses libpthreads instead of libpthread, and HP/UX uses libcma
   dnl (but that was checked above).
   dnl FreeBSD users may need libpthread if they do not have libc_r.

   AC_SEARCH_LIBS_FIRST(pthread_mutex_destroy, pthread pthreads c_r cma)

   if test "$ac_cv_search_pthread_mutex_destroy" != no; then
    ICU_USE_THREADS=1
   else
    dnl For HP 11
    AC_CHECK_LIB(pthread, pthread_mutex_init)
    if test $ac_cv_lib_pthread_pthread_mutex_init = yes; then
      ICU_USE_THREADS=1
    fi
   fi

   AC_CHECK_FUNC(pthread_mutex_lock)

   if test $ac_cv_func_pthread_mutex_lock = yes; then
     ICU_USE_THREADS=1
   fi
  fi
 fi
fi

AC_SUBST(ICU_USE_THREADS)

dnl Check for mmap()

# The AC_FUNC_MMAP macro doesn't work properly.  It seems to be too specific.
# Do this check instead.
HAVE_MMAP=0
AC_MSG_CHECKING([for mmap])
AC_CACHE_VAL(ac_cv_func_mmap_ok,
    [AC_TRY_LINK(
    changequote(<<, >>)dnl
    <<
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
    >>,
    changequote([, ])dnl
    [mmap((void *)0, 0, PROT_READ, 0, 0, 0);],
    ac_cv_func_mmap_ok=yes,
    ac_cv_func_mmap_ok=no)] )
AC_MSG_RESULT($ac_cv_func_mmap_ok)
if test $ac_cv_func_mmap_ok = yes
then
    HAVE_MMAP=1
fi
AC_SUBST(HAVE_MMAP)

dnl Checks for header files
AC_CHECK_HEADERS(inttypes.h)
if test $ac_cv_header_inttypes_h = no; then
 U_HAVE_INTTYPES_H=0
else
 U_HAVE_INTTYPES_H=1
fi
if test $CC = ccc; then
 AC_MSG_RESULT("C compiler set to CCC ${CC}" )
 case "${host}" in
        alpha*-*-*) U_HAVE_INTTYPES_H=0;
 esac
fi

AC_SUBST(U_HAVE_INTTYPES_H)

AC_ARG_WITH(iostream,
	[  --with-iostream=version specify the version of iostream to use (none, old, std, auto) [default=auto]],
	[case "${withval}" in
		none) streams=none ;;
		old) streams=198506 ;;
		std) streams=199711 ;;
		auto) streams= ;;
		*) AC_MSG_ERROR(bad value ${withval} for --with-iostream) ;;
		esac], 
        [streams=])

U_IOSTREAM_SOURCE=0
if test x$streams != xnone
then
    AC_LANG_SAVE
    AC_LANG_CPLUSPLUS
    AC_CHECK_HEADER(iostream)
    if test $ac_cv_header_iostream = yes
    then
        U_IOSTREAM_SOURCE=199711
    else
        AC_CHECK_HEADER(iostream.h)
        if test $ac_cv_header_iostream_h = yes; then
            AC_MSG_CHECKING([whether ostream is really defined])
            AC_CACHE_VAL(ac_cv_iostream_ok,
                AC_TRY_LINK([#include <iostream.h>],[ostream &testout = cout; testout << "test" << endl;],ac_cv_iostream_ok=yes,ac_cv_iostream_ok=no))
            AC_MSG_RESULT($ac_cv_iostream_ok)
            if test $ac_cv_iostream_ok = yes
            then
                U_IOSTREAM_SOURCE=198506
            fi
        fi
    fi
    if test x$streams != x
    then
        if test $U_IOSTREAM_SOURCE -ge $streams
        then
            U_IOSTREAM_SOURCE=$streams
        else
            AC_MSG_ERROR(${withval} iostream is not available)
        fi
    fi
fi
AC_SUBST(U_IOSTREAM_SOURCE)
AC_LANG_RESTORE

dnl Check for endianness
AC_C_BIGENDIAN(unknown)
if test $ac_cv_c_bigendian = no; then
U_IS_BIG_ENDIAN=0
U_ENDIAN_CHAR="l"
else
U_IS_BIG_ENDIAN=1
U_ENDIAN_CHAR="b"
fi
AC_SUBST(U_IS_BIG_ENDIAN)

dnl Do various wchar_t related checks
AC_CHECK_HEADER(wchar.h)
if test "$ac_cv_header_wchar_h" = no
then
    U_HAVE_WCHAR_H=0
    U_HAVE_WCSCPY=0
else
    AC_DEFINE(HAVE_WCHAR_H)
    U_HAVE_WCHAR_H=1
    dnl Some broken systems have wchar.h but not some of its functions...
    AC_SEARCH_LIBS(wcscpy, wcs)
    if test "$ac_cv_search_wcscpy" != no; then
      U_HAVE_WCSCPY=1
    else
      U_HAVE_WCSCPY=0
    fi
fi
AC_SUBST(U_HAVE_WCHAR_H)
AC_SUBST(U_HAVE_WCSCPY)

dnl Do various POSIX related checks
U_HAVE_NL_LANGINFO_CODESET=0
U_NL_LANGINFO_CODESET=-1
AC_CHECK_FUNC(nl_langinfo,[U_HAVE_NL_LANGINFO=1],[U_HAVE_NL_LANGINFO=0])
AC_SUBST(U_HAVE_NL_LANGINFO)
if test $U_HAVE_NL_LANGINFO -eq 1; then
  AC_CACHE_CHECK([for nl_langinfo's argument to obtain the codeset],
  ac_cv_nl_langinfo_codeset,
  [ac_cv_nl_langinfo_codeset="unknown"
  for a in CODESET _NL_CTYPE_CODESET_NAME; do
  AC_TRY_LINK([#include <langinfo.h>],[nl_langinfo($a);],[ac_cv_nl_langinfo_codeset="$a"; break])]
  done)
  if test x$ac_cv_nl_langinfo_codeset != xunknown
  then
      U_HAVE_NL_LANGINFO_CODESET=1
      U_NL_LANGINFO_CODESET=$ac_cv_nl_langinfo_codeset
  fi
fi
AC_SUBST(U_HAVE_NL_LANGINFO_CODESET)
AC_SUBST(U_NL_LANGINFO_CODESET)

dnl Namespace support checks
AC_LANG_CPLUSPLUS
U_HAVE_NAMESPACE=0
AC_MSG_CHECKING([for namespace support])
AC_CACHE_VAL(ac_cv_namespace_ok,
    [AC_TRY_LINK(
    changequote(<<, >>)dnl
    <<namespace x_version {void f(){}};
    namespace x = x_version;
    using namespace x_version;
    >>,
    changequote([, ])dnl
    [f();], ac_cv_namespace_ok=yes, ac_cv_namespace_ok=no)] )
AC_MSG_RESULT($ac_cv_namespace_ok)
U_HAVE_NAMESPACE=1
if test $ac_cv_namespace_ok = no
then
    U_HAVE_NAMESPACE=0
fi
AC_SUBST(U_HAVE_NAMESPACE)

AC_LANG_C
AC_CHECK_FUNC(tzset)
if test x$ac_cv_func_tzset = xyes
then
    U_TZSET=tzset
else
    AC_CHECK_FUNC(_tzset)
    if test x$ac_cv_func__tzset = xyes
    then
	U_TZSET=_tzset
    fi
fi
AC_SUBST(U_TZSET)
AC_CACHE_CHECK(for tzname,ac_cv_var_tzname,
[AC_TRY_LINK(
changequote(<<, >>)dnl
<<#ifndef __USE_POSIX
#define __USE_POSIX
#endif
#include <time.h>
#ifndef tzname /* For SGI.  */
extern char *tzname[]; /* RS6000 and others reject char **tzname.  */
#endif>>,
changequote([, ])dnl
[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
if test $ac_cv_var_tzname = yes; then
  U_TZNAME=tzname
else
  AC_CACHE_CHECK(for _tzname,ac_cv_var__tzname,
  [AC_TRY_LINK(
  changequote(<<, >>)dnl
  <<#include <time.h>
  extern char *_tzname[];
  >>,
  changequote([, ])dnl
  [atoi(*_tzname);], ac_cv_var__tzname=yes, ac_cv_var__tzname=no)])
    if test $ac_cv_var__tzname = yes; then
      U_TZNAME=_tzname
    fi
fi
AC_SUBST(U_TZNAME)

AC_CACHE_CHECK(for timezone,ac_cv_var_timezone,
[AC_TRY_LINK(
changequote(<<, >>)dnl
<<#ifndef __USE_POSIX
#define __USE_POSIX
#endif
#ifndef __USE_XOPEN
#define __USE_XOPEN
#endif
#include <time.h>
>>,
changequote([, ])dnl
[timezone = 1;], ac_cv_var_timezone=yes, ac_cv_var_timezone=no)])
U_HAVE_TIMEZONE=0
if test $ac_cv_var_timezone = yes; then
  U_TIMEZONE=timezone
  U_HAVE_TIMEZONE=1
else
  AC_CACHE_CHECK(for __timezone,ac_cv_var___timezone,
  [AC_TRY_LINK(
  changequote(<<, >>)dnl
  <<#include <time.h>
  >>,
  changequote([, ])dnl
  [__timezone = 1;], ac_cv_var___timezone=yes, ac_cv_var___timezone=no)])
  if test $ac_cv_var___timezone = yes; then
    U_TIMEZONE=__timezone
    U_HAVE_TIMEZONE=1
  else
    AC_CACHE_CHECK(for _timezone,ac_cv_var__timezone,
    [AC_TRY_LINK(
    changequote(<<, >>)dnl
    <<#include <time.h>
    >>,
    changequote([, ])dnl
    [_timezone = 1;], ac_cv_var__timezone=yes, ac_cv_var__timezone=no)])
    if test $ac_cv_var__timezone = yes; then
      U_TIMEZONE=_timezone
      U_HAVE_TIMEZONE=1
    fi
  fi
fi
AC_SUBST(U_HAVE_TIMEZONE)
AC_SUBST(U_TIMEZONE)

ac_default_sizeof_wchar_t=4
AC_DO_CHECK_SIZEOF(wchar_t,$ac_default_sizeof_wchar_t,[
#if STDC_HEADERS
#include <stddef.h>
#endif
#if HAVE_WCHAR_H
#include <wchar.h>
#endif])
dnl We could set ac_cv_sizeof_wchar_t to the default if the check returned
dnl 0 (unknown) but we'd rather do it in the headers, so we know we had no
dnl clue at configure time.
U_SIZEOF_WCHAR_T=$ac_cv_sizeof_wchar_t
AC_SUBST(U_SIZEOF_WCHAR_T)

dnl Checks for typedefs
AC_CHECK_TYPE(int8_t,signed char)
AC_CHECK_TYPE(uint8_t,unsigned char)
AC_CHECK_TYPE(int16_t,signed short)
AC_CHECK_TYPE(uint16_t,unsigned short)
AC_CHECK_TYPE(int32_t,signed long)
AC_CHECK_TYPE(uint32_t,unsigned long)
dnl Not sure if this is a good idea to have in ICU
AC_CHECK_TYPE(int64_t,signed long)
AC_CHECK_TYPE(uint64_t,unsigned long)

if test $ac_cv_type_int8_t = no; then
HAVE_INT8_T=0
else
HAVE_INT8_T=1
fi
AC_SUBST(HAVE_INT8_T)

if test $ac_cv_type_uint8_t = no; then
HAVE_UINT8_T=0
else
HAVE_UINT8_T=1
fi
AC_SUBST(HAVE_UINT8_T)

if test $ac_cv_type_int16_t = no; then
HAVE_INT16_T=0
else
HAVE_INT16_T=1
fi
AC_SUBST(HAVE_INT16_T)

if test $ac_cv_type_uint16_t = no; then
HAVE_UINT16_T=0
else
HAVE_UINT16_T=1
fi
AC_SUBST(HAVE_UINT16_T)

if test $ac_cv_type_int32_t = no; then
HAVE_INT32_T=0
else
HAVE_INT32_T=1
fi
AC_SUBST(HAVE_INT32_T)

if test $ac_cv_type_uint32_t = no; then
HAVE_UINT32_T=0
else
HAVE_UINT32_T=1
fi
AC_SUBST(HAVE_UINT32_T)

if test $ac_cv_type_int64_t = no; then
HAVE_INT64_T=0
else
HAVE_INT64_T=1
fi
AC_SUBST(HAVE_INT64_T)

if test $ac_cv_type_uint64_t = no; then
HAVE_UINT64_T=0
else
HAVE_UINT64_T=1
fi
AC_SUBST(HAVE_UINT64_T)

dnl Echo
ECHO_N=$ac_n
ECHO_C=$ac_c
AC_SUBST(ECHO_N)
AC_SUBST(ECHO_C)

dnl Enable/disable extras
AC_ARG_ENABLE(extras,
	[  --enable-extras         build ICU extras [default=yes]],
	[case "${enableval}" in
		yes) extras=true ;;
		no)  extras=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-extras) ;;
		esac], 
	extras=true)
ICU_CONDITIONAL(EXTRAS, test "$extras" = true)
AC_ARG_ENABLE(extras,
	[  --enable-ustdio         build ICU's ustdio library [default=yes]],
	[case "${enableval}" in
		yes) ustdio=true ;;
		no)  ustdio=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-ustdio) ;;
		esac], 
	ustdio=true)
ICU_CONDITIONAL(USTDIO, test "$ustdio" = true)

dnl Enable/disable layout
AC_ARG_ENABLE(layout,
	[  --enable-layout         build ICU's layout library [default=no]],
	[case "${enableval}" in
		yes) layout=true ;;
		no)  layout=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-layout) ;;
		esac], 
	layout=false)
ICU_CONDITIONAL(LAYOUT, test "$layout" = true)

AC_ARG_WITH(data-packaging,
	[  --with-data-packaging=type specify how to package ICU data (files, archive, library, auto) [default=auto]],
	[case "${withval}" in
                files|archive|library) datapackaging=$withval ;;
		auto) datapackaging=$withval ;;
		*) AC_MSG_ERROR(bad value ${withval} for --with-iostream) ;;
		esac], 
        [datapackaging=])

dnl Deprecated support for --enable-mapped

AC_ARG_ENABLE(mapped,,
       [case "${enableval}" in
               yes) mapped=archive ;;
               no)  mapped=library ;;
               *) AC_MSG_ERROR(bad value ${enableval} for --enable-mapped; use --with-data-packaging now) ;;
	esac],
       [mapped=])

if test x"$mapped" != x; then
    case $mapped in
	archive)
    	    AC_MSG_WARN(use --with-data-packaging=archive instead of --enable-mapped)
	    ;;
	library)
    	    AC_MSG_WARN(use --with-data-packaging=library instead of --disable-mapped)
	    ;;
    esac
    if test x"$datapackaging" != x -a x"$mapped" != x"$datapackaging"; then
	AC_MSG_ERROR(conflicting values used for --with-data-packaging and deprecated --enable-mapped)
    fi
    datapackaging=$mapped
fi

if test x"$datapackaging" = x -o x"$datapackaging" = xauto; then
	datapackaging=library
fi

case "$datapackaging" in
    files)
	DATA_PACKAGING_CPPFLAGS=-DUDATA_FILES
	DATA_PACKAGING_MODE=files
	;;
    archive)
	DATA_PACKAGING_CPPFLAGS=-DUDATA_MAP
	DATA_PACKAGING_MODE=common
	;;
    library)
	DATA_PACKAGING_CPPFLAGS=-DUDATA_DLL
	DATA_PACKAGING_MODE=dll
	;;
esac
AC_SUBST(DATA_PACKAGING_CPPFLAGS)
AC_SUBST(DATA_PACKAGING_MODE)

dnl Sets a library suffix
AC_MSG_CHECKING([for a library suffix to use])
AC_ARG_WITH(library-suffix,
	[  --with-library-suffix=suffix    tag a suffix to the library names [default=]],
	[ICULIBSUFFIX="${withval}"],
	[ICULIBSUFFIX=])
msg=$ICULIBSUFFIX
if test x"$msg" = x; then
    msg=none
fi
AC_MSG_RESULT($msg)
AC_SUBST(ICULIBSUFFIX)

dnl Enable/disable tests
AC_ARG_ENABLE(tests,
	[  --enable-tests          build ICU tests [default=yes]],
	[case "${enableval}" in
		yes) tests=true ;;
		no)  tests=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-tests) ;;
		esac], 
	tests=true)
ICU_CONDITIONAL(TESTS, test "$tests" = true)

dnl Enable/disable samples
AC_ARG_ENABLE(samples,
	[  --enable-samples        build ICU samples [default=yes]  
Additionally, the variable FORCE_LIBS may be set before calling configure. If set, it will REPLACE any automatic list of libraries.],
	[case "${enableval}" in
		yes) samples=true ;;
		no)  samples=false ;;
		*) AC_MSG_ERROR(bad value ${enableval} for --enable-samples) ;;
		esac], 
	samples=true)
ICU_CONDITIONAL(SAMPLES, test "$samples" = true)

ICUDATA_CHAR=$U_ENDIAN_CHAR

dnl Platform-specific Makefile setup
dnl set ICUDATA_CHAR to 'e' for any EBCDIC (which should be big endian) platform.
case "${host}" in
	*-*-solaris*) 	platform=U_SOLARIS ;;
	*-*-linux*) 	platform=U_LINUX ;;
	*-*-*bsd*) 	platform=U_BSD ;;
	*-*-aix*) 	platform=AIX ;;
	*-sequent-*)	platform=PTX ;;
	*-*-hpux*) 	platform=HPUX ;;
	*-dec-osf*) 	platform=U_OSF ;;
	*-*-irix*)      platform=IRIX ;;
	*-*ibm-openedition*|*-*-os390*)	platform=OS390
			ICUDATA_CHAR="e" ;;
	*-*-os400*)	platform=OS400
			ICUDATA_CHAR="e" ;;
	*-apple-darwin*|*-apple-rhapsody*)	platform=U_DARWIN ;;
	*) 		platform=U_UNKNOWN_PLATFORM ;;
esac
AC_SUBST(ICUDATA_CHAR)
AC_SUBST(platform)
platform_make_fragment_name="$icu_cv_host_frag"
platform_make_fragment='$(top_srcdir)/config/'"$platform_make_fragment_name"
AC_SUBST(platform_make_fragment_name)
AC_SUBST(platform_make_fragment)

dnl Handle -rpath options for shared library paths
case "${host}" in
	*-*-solaris*) 	ld_rpath_suf=":" ;;
	*-*-linux*) 	ld_rpath_suf=" " ;;
	*-*-*bsd*) 	ld_rpath_suf=" " ;;
	*-*-aix*) 	ld_rpath_suf="" ;;
	*-sequent-*)	ld_rpath_suf="" ;;
	*-*-hpux*) 	ld_rpath_suf=":" ;;
	*-*-irix*)      ld_rpath_suf=" " ;;
	*-*ibm-openedition*|*-*-os390*)	ld_rpath_suf="" ;;
	*-*-os400*)	ld_rpath_suf=" " ;;
	*) 		ld_rpath_suf="" ;;
esac
AC_SUBST(ld_rpath_suf)

dnl On HP/UX, main() functions compiled in C don't invoke
dnl static constructors in C++ libs.  Hack around that here
dnl by renaming some .c files to .cpp
case "${host}" in
	*-*-hpux*) 	
		for file in samples/date/date \
		  samples/cal/cal test/cintltst/cintltst \
		  tools/makeconv/makeconv tools/genrb/genrb \
		  tools/genccode/genccode \
		  tools/gencmn/gencmn tools/gencmn/decmn \
		  tools/gencnval/gencnval tools/gennorm/gennorm \
		  tools/gennames/gennames tools/gentest/gentest \
          tools/pkgdata/pkgdata tools/genprops/genprops
		do
		  if test -f $file.c; then
		    mv $file.c $file.cpp
		  else
		    echo "# $file.c does not exist or is already renamed [warning]"
		  fi
		done
	;;
esac

if test "${FORCE_LIBS}" != ""; then
   echo " *** Overriding automatically chosen [LIBS=$LIBS], using instead [FORCE_LIBS=${FORCE_LIBS}]"  1>&6
   LIBS=${FORCE_LIBS}
fi

dnl SPECIAL handling for HPUX 10 and also '11 & --enable-hpuxcma=true'
if test $hpuxcma = true; then
	CPPFLAGS="${CPPFLAGS} -D_PTHREADS_DRAFT_4 -DHPUX_CMA"
fi
dnl END special 

dnl Now that we're done using CPPFLAGS etc. for tests, we can change it
dnl for build.

if test $ICU_USE_THREADS -ne 0
then
    CPPFLAGS="$CPPFLAGS \$(THREADSCPPFLAGS)"
    CFLAGS="$CFLAGS \$(THREADSCFLAGS)"
    CXXFLAGS="$CXXFLAGS \$(THREADSCXXFLAGS)"
fi

if test "$ac_cv_lib_dld_shl_load" = "yes"; then
	CPPFLAGS="${CPPFLAGS} -DICU_USE_SHL_LOAD"
fi

dnl added for s/390 DLL loading detection

if test "$ac_cv_func_dllload" = "yes"; then
    CPPFLAGS="${CPPFLAGS} -DICU_USE_SHL_LOAD"
fi

dnl output the Makefiles
AC_OUTPUT([README icudefs.mk \
		Makefile \
		data/Makefile data/build/Makefile \
		common/Makefile config/Makefile.inc i18n/Makefile \
		layout/Makefile \
		extra/Makefile extra/ustdio/Makefile extra/uconv/Makefile extra/scrptrun/Makefile \
		stubdata/Makefile \
		tools/Makefile tools/ctestfw/Makefile tools/makeconv/Makefile \
		tools/genrb/Makefile  \
		tools/genuca/Makefile  \
		tools/pkgdata/Makefile tools/pkgdata/icupkg.inc \
		tools/genccode/Makefile tools/gencmn/Makefile \
		tools/gencnval/Makefile tools/gentz/Makefile \
        tools/gennames/Makefile tools/toolutil/Makefile tools/gentest/Makefile \
		tools/gennorm/Makefile \
		tools/genprops/Makefile \
		tools/dumpce/Makefile \
		test/Makefile test/testdata/Makefile test/intltest/Makefile test/cintltst/Makefile \
		test/ieeetest/Makefile \
		test/collperf/Makefile \
		test/thaitest/Makefile \
		test/letest/Makefile \
		samples/Makefile samples/date/Makefile samples/cal/Makefile samples/layout/Makefile \
		common/unicode/platform.h])

if test $ICU_USE_THREADS = 0; then
  echo  " *** Note: configuring the ICU without pthread support or testing. If this isn't what you want, then run configure with --enable-threads=yes or check the messages [above] to see why we couldn't find pthread_create()" 1>&6
fi

echo "You must use $U_MAKE to build ICU."