dnl***************************************************************************
dnl Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
dnl                                                                          *
dnl Permission is hereby granted, free of charge, to any person obtaining a  *
dnl copy of this software and associated documentation files (the            *
dnl "Software"), to deal in the Software without restriction, including      *
dnl without limitation the rights to use, copy, modify, merge, publish,      *
dnl distribute, distribute with modifications, sublicense, and/or sell       *
dnl copies of the Software, and to permit persons to whom the Software is    *
dnl furnished to do so, subject to the following conditions:                 *
dnl                                                                          *
dnl The above copyright notice and this permission notice shall be included  *
dnl in all copies or substantial portions of the Software.                   *
dnl                                                                          *
dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
dnl                                                                          *
dnl Except as contained in this notice, the name(s) of the above copyright   *
dnl holders shall not be used in advertising or otherwise to promote the     *
dnl sale, use or other dealings in this Software without prior written       *
dnl authorization.                                                           *
dnl***************************************************************************
dnl
dnl Author: Thomas E. Dickey 1995-on
dnl
dnl $Id$
dnl Process this file with autoconf to produce a configure script.
dnl
dnl See http://invisible-island.net/autoconf/ for additional information.
dnl
dnl ---------------------------------------------------------------------------
AC_PREREQ(2.13.20020210)
AC_REVISION($Revision$)
AC_INIT(ncurses/base/lib_initscr.c)
AC_CONFIG_HEADER(include/ncurses_cfg.h:include/ncurses_cfg.hin)

CF_SUBST_NCURSES_VERSION

CF_WITH_REL_VERSION(NCURSES)
CF_WITH_ABI_VERSION

CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
AC_ARG_WITH(system-type,
[  --with-system-type=XXX  test: override derived host system-type],
[AC_MSG_WARN(overriding system type to $withval)
 cf_cv_system_name=$withval])

###	Save the given $CFLAGS to allow user-override.
cf_user_CFLAGS="$CFLAGS"

###	Default install-location
CF_CFG_DEFAULTS

###	Checks for programs.
AC_PROG_CC
CF_GCC_VERSION

AC_PROG_CPP
AC_PROG_GCC_TRADITIONAL
CF_PROG_CC_C_O(CC)
AC_ISC_POSIX
CF_ANSI_CC_REQD
CF_PROG_EXT
CF_PROG_LDCONFIG

dnl DEFECT in autoconf 2.12:	an attempt to set policy, this breaks the
dnl				configure script by not letting us test if C++
dnl				is present, making this option necessary.
AC_MSG_CHECKING(if you want to ensure bool is consistent with C++)
AC_ARG_WITH(cxx,
	[  --without-cxx           do not adjust ncurses bool to match C++],
	[cf_with_cxx=$withval],
	[cf_with_cxx=yes])
AC_MSG_RESULT($cf_with_cxx)
if test "X$cf_with_cxx" = Xno ; then
	CXX=""
	GXX=""
else
	# with autoconf 2.13, we can change the error to a warning:
	pushdef([AC_MSG_ERROR],
		[AC_MSG_RESULT(no)
		 AC_MSG_WARN([You don't have any C++ compiler, too bad])
		cf_with_cxx=no; CXX=""; GXX="";])dnl
	AC_PROG_CXX
	popdef([AC_MSG_ERROR])dnl
	# autoconf 2.5x removed the error - by hardcoding it to g++.
	if test "$CXX" = "g++" ; then
		AC_PATH_PROG(CXX,g++)
	fi
	if test "$CXX" = "g++" ; then
		AC_MSG_WARN(ignoring hardcoded g++)
		cf_with_cxx=no; CXX=""; GXX="";
	fi
fi

CF_GXX_VERSION
case $GXX_VERSION in
1*|2.[[0-6]]*)
	GXX=""; CXX=""; ac_cv_prog_gxx=no
	cf_cxx_library=no
	AC_MSG_WARN(templates do not work)
	;;
esac

AC_MSG_CHECKING(if you want to build C++ binding and demo)
AC_ARG_WITH(cxx-binding,
	[  --without-cxx-binding   do not build C++ binding and demo],
	[cf_with_cxx_binding=$withval],
	[cf_with_cxx_binding=$cf_with_cxx])
AC_MSG_RESULT($cf_with_cxx_binding)

AC_MSG_CHECKING(if you want to build with Ada95)
AC_ARG_WITH(ada,
	[  --without-ada           suppress check for Ada95, don't build demo],
	[cf_with_ada=$withval],
	[cf_with_ada=yes])
AC_MSG_RESULT($cf_with_ada)

AC_MSG_CHECKING(if you want to build programs such as tic)
AC_ARG_WITH(progs,
	[  --without-progs         suppress build with programs (e.g., tic)],
	[cf_with_progs=$withval],
	[cf_with_progs=yes])
AC_MSG_RESULT($cf_with_progs)

AC_MSG_CHECKING(if you wish to install curses.h)
AC_ARG_WITH(curses-h,
	[  --without-curses-h      install curses.h as ncurses.h only],
	[with_curses_h=$withval],
	[with_curses_h=yes])
AC_MSG_RESULT($with_curses_h)

modules_to_build="ncurses"
if test "X$cf_with_progs" != Xno ; then
modules_to_build="$modules_to_build progs tack"
fi
modules_to_build="$modules_to_build panel menu form"

AC_ARG_PROGRAM
AC_PROG_AWK
AC_PROG_MAKE_SET
CF_PROG_INSTALL
AC_SYS_LONG_FILE_NAMES
CF_MIXEDCASE_FILENAMES
AC_PROG_LN_S
CF_MAKE_TAGS
AC_CHECK_PROGS(LINT, tdlint lint alint)
AC_CHECK_PROGS(MAN, man man_db)
AC_SUBST(LINT_OPTS)

dnl These are standard among *NIX systems, but not when cross-compiling
AC_CHECK_TOOL(RANLIB, ranlib, ':')
AC_CHECK_TOOL(LD, ld, ld)
AC_CHECK_TOOL(AR, ar, ar)
CF_SUBST(archiver options,AR_OPTS,rv)

CF_MAKEFLAGS

dnl Special option for use by system-builders: the install-prefix is used to
dnl adjust the location into which the actual install is done, so that an
dnl archive can be built without modifying the host system's configuration.
AC_MSG_CHECKING(if you have specified an install-prefix)
AC_ARG_WITH(install-prefix,
	[  --with-install-prefix   prefixes actual install-location ($DESTDIR)],
	[case "$withval" in #(vi
	yes|no) #(vi
		;;
	*)	DESTDIR="$withval"
		;;
	esac])
AC_MSG_RESULT($DESTDIR)
AC_SUBST(DESTDIR)

###############################################################################
CF_HELP_MESSAGE(Build-Tools Needed to Compile Temporary Applications for Cross-compiling:)
# If we're cross-compiling, allow the user to override the tools and their
# options.  The configure script is oriented toward identifying the host
# compiler, etc., but we need a build compiler to generate parts of the source.
CF_BUILD_CC

###############################################################################
CF_HELP_MESSAGE(Options to Specify the Libraries Built/Used:)

### Options to allow the user to specify the set of libraries which are used.
### Use "--without-normal --with-shared" to allow the default model to be
### shared, for example.
cf_list_models=""
AC_SUBST(cf_list_models)dnl	the complete list of models ("normal debug")

CF_WITH_LIBTOOL
if test "$with_libtool" != "no" ; then

cf_list_models="$cf_list_models libtool"

else

AC_MSG_CHECKING(if you want to build shared libraries)
AC_ARG_WITH(shared,
	[  --with-shared           generate shared-libraries],
	[with_shared=$withval],
	[with_shared=no])
AC_MSG_RESULT($with_shared)
test "$with_shared" = "yes" && cf_list_models="$cf_list_models shared"

AC_MSG_CHECKING(if you want to build static libraries)
AC_ARG_WITH(normal,
	[  --with-normal           generate normal-libraries (default)],
	[with_normal=$withval],
	[with_normal=yes])
AC_MSG_RESULT($with_normal)
test "$with_normal" = "yes" && cf_list_models="$cf_list_models normal"

AC_MSG_CHECKING(if you want to build debug libraries)
AC_ARG_WITH(debug,
	[  --with-debug            generate debug-libraries (default)],
	[with_debug=$withval],
	[with_debug=yes])
AC_MSG_RESULT($with_debug)
test "$with_debug" = "yes" && cf_list_models="$cf_list_models debug"

AC_MSG_CHECKING(if you want to build profiling libraries)
AC_ARG_WITH(profile,
	[  --with-profile          generate profile-libraries],
	[with_profile=$withval],
	[with_profile=no])
AC_MSG_RESULT($with_profile)
test "$with_profile" = "yes" && cf_list_models="$cf_list_models profile"

fi

###############################################################################

AC_MSG_CHECKING(for specified models)
test -z "$cf_list_models" && cf_list_models=normal
dnl If we use libtool to generate libraries, then it must be the only
dnl specified model.
test "$with_libtool" != "no" && cf_list_models=libtool
AC_MSG_RESULT($cf_list_models)

### Use the first model as the default, and save its suffix for use in building
### up test-applications.
AC_MSG_CHECKING(for default model)
DFT_LWR_MODEL=`echo "$cf_list_models" | $AWK '{print $1}'`
AC_MSG_RESULT($DFT_LWR_MODEL)

CF_UPPER(DFT_UPR_MODEL,$DFT_LWR_MODEL)dnl

AC_SUBST(DFT_LWR_MODEL)dnl	the default model ("normal")
AC_SUBST(DFT_UPR_MODEL)dnl	the default model ("NORMAL")

TINFO_NAME=tinfo
AC_SUBST(TINFO_NAME)

LIB_NAME=ncurses
AC_SUBST(LIB_NAME)

LIB_DIR=../lib
LIB_2ND=../../lib

CF_LIB_PREFIX(cf_prefix)
LIB_PREFIX=$cf_prefix
AC_SUBST(LIB_PREFIX)

LIB_SUFFIX=
AC_SUBST(LIB_SUFFIX)

###############################################################################

AC_MSG_CHECKING(if you want to build a separate terminfo library)
AC_ARG_WITH(termlib,
	[  --with-termlib          generate separate terminfo library],
	[with_termlib=$withval],
	[with_termlib=no])
AC_MSG_RESULT($with_termlib)

### Checks for special libraries, must be done up-front.
CF_WITH_DBMALLOC
CF_WITH_DMALLOC

SHLIB_LIST=""
CF_WITH_GPM
if test "$with_gpm" = yes ; then
	CF_FUNC_DLSYM
	CF_LIB_SONAME([#include <gpm.h>],[if (Gpm_Open(0,0)) Gpm_Close();],gpm)
	test "$cf_cv_gpm_soname" != "unknown" && AC_DEFINE_UNQUOTED(LIBGPM_SONAME,"$cf_cv_gpm_soname")
	SHLIB_LIST="-ldl $SHLIB_LIST"
	AC_DEFINE(HAVE_LIBGPM)
	AC_CHECK_LIB(gpm,Gpm_Wgetch,[
		AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
	])
fi

CF_WITH_SYSMOUSE

dnl Not all ports of gcc support the -g option

if test X"$CC_G_OPT" = X"" ; then
	CC_G_OPT='-g'
	test -n "$GCC" && test "${ac_cv_prog_cc_g}" != yes && CC_G_OPT=''
fi
AC_SUBST(CC_G_OPT)

if test X"$CXX_G_OPT" = X"" ; then
	CXX_G_OPT='-g'
	test -n "$GXX" && test "${ac_cv_prog_cxx_g}" != yes && CXX_G_OPT=''
fi
AC_SUBST(CXX_G_OPT)

AC_MSG_CHECKING(for default loader flags)
case $DFT_LWR_MODEL in
libtool) LD_MODEL=''   ;;
normal)  LD_MODEL=''   ;;
debug)   LD_MODEL=$CC_G_OPT ;;
profile) LD_MODEL='-pg';;
shared)  LD_MODEL=''   ;;
esac
AC_SUBST(LD_MODEL)dnl		the type of link (e.g., -g or -pg)
AC_MSG_RESULT($LD_MODEL)

AC_MSG_CHECKING(if rpath option should be used)
AC_ARG_ENABLE(rpath,
[  --enable-rpath          use rpath option when generating shared libraries],
[cf_cv_ld_rpath=$enableval],
[cf_cv_ld_rpath=no])
AC_MSG_RESULT($cf_cv_ld_rpath)

CF_SHARED_OPTS
if test "$CC_SHARED_OPTS" = "unknown"; then
	for model in $cf_list_models; do
		if test "$model" = "shared"; then
			AC_ERROR(Shared libraries are not supported in this version)
		fi
	done
fi

###############################################################################
CF_HELP_MESSAGE(Fine-Tuning Your Configuration:)

###	use option --disable-overwrite to leave out the link to -lcurses
AC_MSG_CHECKING(if you wish to install ncurses overwriting curses)
AC_ARG_ENABLE(overwrite,
	[  --disable-overwrite     leave out the link to -lcurses],
	[with_overwrite=$enableval],
	[if test "$prefix" = "/usr" ; then with_overwrite=yes; else with_overwrite=no; fi])
AC_MSG_RESULT($with_overwrite)

AC_MSG_CHECKING(if external terminfo-database is used)
AC_ARG_ENABLE(database,
	[  --disable-database      do not use terminfo, only fallbacks/termcap],
	[use_database=$enableval],
	[use_database=yes])
AC_MSG_RESULT($use_database)

case $host_os in #(vi
os2*) #(vi
	TERMINFO_SRC='${top_srcdir}/misc/emx.src'
	;;
*) #(vi
	TERMINFO_SRC='${top_srcdir}/misc/terminfo.src'
	;;
esac
AC_SUBST(TERMINFO_SRC)

CF_PATHSEP
if test "$use_database" != no ; then
	AC_DEFINE(USE_DATABASE)
	AC_MSG_CHECKING(which terminfo source-file will be installed)
	AC_ARG_ENABLE(database,
		[  --with-database=XXX     specify terminfo source to install],
		[TERMINFO_SRC=$withval])
	AC_MSG_RESULT($TERMINFO_SRC)
fi

AC_MSG_CHECKING(for list of fallback descriptions)
AC_ARG_WITH(fallbacks,
	[  --with-fallbacks=XXX    specify list of fallback terminal descriptions],
	[with_fallback=$withval],
	[with_fallback=])
AC_MSG_RESULT($with_fallback)
FALLBACK_LIST=`echo "$with_fallback" | sed -e 's/,/ /g'`
AC_SUBST(FALLBACK_LIST)

AC_MSG_CHECKING(if you want modern xterm or antique)
AC_ARG_WITH(xterm-new,
	[  --without-xterm-new     specify if xterm terminfo should be old version],
	[with_xterm_new=$withval],
	[with_xterm_new=yes])
case $with_xterm_new in
no)	with_xterm_new=xterm-old;;
*)	with_xterm_new=xterm-new;;
esac
AC_MSG_RESULT($with_xterm_new)
WHICH_XTERM=$with_xterm_new
AC_SUBST(WHICH_XTERM)

MAKE_TERMINFO=
if test "$use_database" = no ; then
	TERMINFO="${datadir}/terminfo"
	MAKE_TERMINFO="#"
else

AC_MSG_CHECKING(for list of terminfo directories)
CF_WITH_PATHLIST(terminfo-dirs,
	[  --with-terminfo-dirs=XXX specify list of terminfo directories],
	TERMINFO_DIRS,
	DATADIR/terminfo,
	${datadir}/terminfo)
AC_MSG_RESULT($TERMINFO_DIRS)
test -n "$TERMINFO_DIRS" && AC_DEFINE_UNQUOTED(TERMINFO_DIRS,"$TERMINFO_DIRS")

AC_MSG_CHECKING(for default terminfo directory)
CF_WITH_PATH(default-terminfo-dir,
	[  --with-default-terminfo-dir=DIR default terminfo directory],
	TERMINFO,
	DATADIR/terminfo,
	${datadir}/terminfo)
AC_MSG_RESULT($TERMINFO)
AC_DEFINE_UNQUOTED(TERMINFO,"$TERMINFO")

fi

AC_SUBST(TERMINFO)
AC_SUBST(MAKE_TERMINFO)

###	use option --disable-big-core to make tic run on small machines
###	We need 4Mb, check if we can allocate 50% more than that.
AC_MSG_CHECKING(if big-core option selected)
AC_ARG_ENABLE(big-core,
	[  --disable-big-core      assume machine has little memory],
	[with_big_core=$enableval],
	[AC_TRY_RUN([
#include <stdlib.h>
#include <string.h>
int main() {
	unsigned long n = 6000000L;
	char *s = malloc(n);
	if (s != 0)
		s[0] = s[n-1] = 0;
	exit(s == 0);
}],
	[with_big_core=yes],
	[with_big_core=no],
	[with_big_core=no])])
AC_MSG_RESULT($with_big_core)
test "$with_big_core" = "yes" && AC_DEFINE(HAVE_BIG_CORE)

###	use option --enable-termcap to compile in the termcap fallback support
AC_MSG_CHECKING(if you want termcap-fallback support)
AC_ARG_ENABLE(termcap,
	[  --enable-termcap        compile in termcap fallback support],
	[with_termcap=$enableval],
	[with_termcap=no])
AC_MSG_RESULT($with_termcap)

if test "$with_termcap" != "yes" ; then
	if test "$use_database" = no ; then
		if test -z "$with_fallback" ; then
			AC_ERROR(You have disabled the database w/o specifying fallbacks)
		fi
	fi
	AC_DEFINE(PURE_TERMINFO)
else

AC_DEFINE(USE_TERMCAP)
AC_MSG_CHECKING(for list of termcap files)
CF_WITH_PATHLIST(termpath,
	[  --with-termpath=XXX     specify list of termcap files],
	TERMPATH,
	/etc/termcap:/usr/share/misc/termcap)
AC_MSG_RESULT($TERMPATH)
test -n "$TERMPATH" && AC_DEFINE_UNQUOTED(TERMPATH,"$TERMPATH")

###	use option --enable-getcap to use a hacked getcap for reading termcaps
AC_MSG_CHECKING(if fast termcap-loader is needed)
AC_ARG_ENABLE(getcap,
	[  --enable-getcap         fast termcap load, no xrefs to terminfo],
	[with_getcap=$enableval],
	[with_getcap=no])
AC_MSG_RESULT($with_getcap)
test "$with_getcap" = "yes" && AC_DEFINE(USE_GETCAP)

AC_MSG_CHECKING(if translated termcaps will be cached in ~/.terminfo)
AC_ARG_ENABLE(getcap-cache,
	[  --enable-getcap-cache   cache translated termcaps in ~/.terminfo],
	[with_getcap_cache=$enableval],
	[with_getcap_cache=no])
AC_MSG_RESULT($with_getcap_cache)
test "$with_getcap_cache" = "yes" && AC_DEFINE(USE_GETCAP_CACHE)

fi

###   Use option --disable-home-terminfo to completely remove ~/.terminfo
AC_MSG_CHECKING(if ~/.terminfo is wanted)
AC_ARG_ENABLE(home-terminfo,
	[  --disable-home-terminfo drop ~/.terminfo from terminfo search-path],
	[with_home_terminfo=$enableval],
	[with_home_terminfo=yes])
AC_MSG_RESULT($with_home_terminfo)
test "$with_home_terminfo" = "yes" && AC_DEFINE(USE_HOME_TERMINFO)

AC_MSG_CHECKING(if you want to use restrict environment when running as root)
AC_ARG_ENABLE(root-environ,
	[  --disable-root-environ  limit environment when running as root],
	[with_root_environ=$enableval],
	[with_root_environ=yes])
AC_MSG_RESULT($with_root_environ)
test "$with_root_environ" = yes && AC_DEFINE(USE_ROOT_ENVIRON)

###   Use option --enable-symlinks to make tic use symlinks, not hard links
###   to reduce storage requirements for the terminfo database.
CF_LINK_FUNCS

with_links=no
with_symlinks=no

if test "$ac_cv_func_link" != yes ; then
    AC_MSG_CHECKING(if tic should use symbolic links)
    if test "$ac_cv_func_symlink" = yes ; then
    	with_symlinks=yes
    else
    	with_symlinks=no
    fi
    AC_MSG_RESULT($with_symlinks)
elif test "$ac_cv_func_symlink" != yes ; then
    AC_MSG_CHECKING(if tic should use hard links)
    if test "$ac_cv_func_link" = yes ; then
    	with_links=yes
    else
    	with_links=no
    fi
    AC_MSG_RESULT($with_links)
else
    AC_MSG_CHECKING(if tic should use symbolic links)
    AC_ARG_ENABLE(symlinks,
	[  --enable-symlinks       make tic use symbolic links not hard links],
	[with_symlinks=$enableval],
	[with_symlinks=no])
    AC_MSG_RESULT($with_symlinks)
fi

test "$with_links" = yes && AC_DEFINE(USE_LINKS)
test "$with_symlinks" = yes && AC_DEFINE(USE_SYMLINKS)

###   use option --enable-broken-linker to force on use of broken-linker support
AC_MSG_CHECKING(if you want broken-linker support code)
AC_ARG_ENABLE(broken_linker,
	[  --enable-broken_linker  compile with broken-linker support code],
	[with_broken_linker=$enableval],
	[with_broken_linker=${BROKEN_LINKER-no}])
AC_MSG_RESULT($with_broken_linker)

BROKEN_LINKER=0
if test "$with_broken_linker" = yes ; then
	AC_DEFINE(BROKEN_LINKER)
	BROKEN_LINKER=1
elif test "$DFT_LWR_MODEL" = shared ; then
	case $cf_cv_system_name in #(vi
	cygwin*)
		AC_DEFINE(BROKEN_LINKER)
		BROKEN_LINKER=1
		CF_VERBOSE(cygwin linker is broken anyway)
		;;
	esac
fi
AC_SUBST(BROKEN_LINKER)

###   use option --enable-widec to turn on use of wide-character support
NCURSES_CH_T=chtype
NCURSES_LIBUTF8=0

NEED_WCHAR_H=0
NCURSES_MBSTATE_T=0
NCURSES_WCHAR_T=0
NCURSES_WINT_T=0

# Check to define _XOPEN_SOURCE "automatically"
CF_XOPEN_SOURCE

# Checks for CODESET support.
AM_LANGINFO_CODESET

# use these variables to work around a defect in gcc's fixincludes.
NCURSES_OK_WCHAR_T=
NCURSES_OK_WINT_T=

AC_MSG_CHECKING(if you want wide-character code)
AC_ARG_ENABLE(widec,
	[  --enable-widec          compile with wide-char/UTF-8 code],
	[with_widec=$enableval],
	[with_widec=no])
AC_MSG_RESULT($with_widec)
if test "$with_widec" = yes ; then
	LIB_SUFFIX="w${LIB_SUFFIX}"
	AC_DEFINE(USE_WIDEC_SUPPORT)
	CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
	# with_overwrite=no
	NCURSES_CH_T=cchar_t
	AC_CHECK_FUNCS(putwc btowc wctob mbtowc wctomb mblen mbrlen mbrtowc)
	if test "$ac_cv_func_putwc" != yes ; then
		CF_LIBUTF8
		if test "$cf_cv_libutf8" = yes ; then
			NCURSES_LIBUTF8=1
		fi
	fi
	CF_WCHAR_TYPE(mbstate_t, NCURSES_MBSTATE_T)
	CF_WCHAR_TYPE(wchar_t,   NCURSES_WCHAR_T,   NCURSES_OK_WCHAR_T)
	CF_WCHAR_TYPE(wint_t,    NCURSES_WINT_T,    NCURSES_OK_WINT_T)

	if test "$NCURSES_MBSTATE_T" != 0; then
		AC_DEFINE(NEED_MBSTATE_T_DEF)
	fi
fi
AC_SUBST(NCURSES_CH_T)
AC_SUBST(NCURSES_LIBUTF8)

AC_SUBST(NEED_WCHAR_H)
AC_SUBST(NCURSES_MBSTATE_T)
AC_SUBST(NCURSES_WCHAR_T)
AC_SUBST(NCURSES_WINT_T)

AC_SUBST(NCURSES_OK_WCHAR_T)
AC_SUBST(NCURSES_OK_WINT_T)

###   use option --disable-lp64 to allow long chtype
AC_MSG_CHECKING(if defining _LP64 overrides chtype definition)
AC_ARG_ENABLE(lp64,
	[  --disable-lp64          allow chtype to be long (ignore _LP64)],
	[with_lp64=$enableval],
	[with_lp64=yes])
AC_MSG_RESULT($with_lp64)
if test "$with_lp64" = yes ; then
	cf_cv_enable_lp64=1
else
	cf_cv_enable_lp64=0
fi
AC_SUBST(cf_cv_enable_lp64)

CF_LARGEFILE

###   use option --with-bool to override bool's type
AC_MSG_CHECKING(for type of bool)
AC_ARG_WITH(bool,
	[  --with-bool=TYPE        override fallback type of bool variable],
	[NCURSES_BOOL="$withval"],
	[NCURSES_BOOL=auto])
AC_MSG_RESULT($NCURSES_BOOL)
AC_SUBST(NCURSES_BOOL)

AC_MSG_CHECKING(for alternate terminal capabilities file)
AC_ARG_WITH(caps,
	[  --with-caps=alt         compile with alternate Caps file],
	[TERMINFO_CAPS=Caps.$withval],
	[TERMINFO_CAPS=Caps])
test -f ${srcdir}/include/${TERMINFO_CAPS} || TERMINFO_CAPS=Caps
AC_MSG_RESULT($TERMINFO_CAPS)
AC_SUBST(TERMINFO_CAPS)

###   use option --with-chtype to override chtype's type
AC_MSG_CHECKING(for type of chtype)
AC_ARG_WITH(chtype,
	[  --with-chtype=TYPE      override type of chtype],
	[NCURSES_CHTYPE="$withval"],
	[NCURSES_CHTYPE=auto])
AC_MSG_RESULT($NCURSES_CHTYPE)

###   use option --with-ospeed to override ospeed's type
AC_MSG_CHECKING(for type of ospeed)
AC_ARG_WITH(ospeed,
	[  --with-ospeed=TYPE      override type of ospeed variable],
	[NCURSES_OSPEED="$withval"],
	[NCURSES_OSPEED=short])
AC_MSG_RESULT($NCURSES_OSPEED)
AC_SUBST(NCURSES_OSPEED)

###   use option --with-mmask-t to override mmask_t's type
AC_MSG_CHECKING(for type of mmask_t)
AC_ARG_WITH(mmask-t,
	[  --with-mmask-t=TYPE     override type of mmask_t],
	[NCURSES_MMASK_T="$withval"],
	[NCURSES_MMASK_T=auto])
AC_MSG_RESULT($NCURSES_MMASK_T)

###   use option --enable-bsdpad to have tputs process BSD-style prefix padding
AC_MSG_CHECKING(if tputs should process BSD-style prefix padding)
AC_ARG_ENABLE(bsdpad,
	[  --enable-bsdpad         recognize BSD-style prefix padding],
	[with_bsdpad=$enableval],
	[with_bsdpad=no])
AC_MSG_RESULT($with_bsdpad)
test "$with_bsdpad" = yes && AC_DEFINE(BSD_TPUTS)

### Enable compiling-in rcs id's
AC_MSG_CHECKING(if RCS identifiers should be compiled-in)
AC_ARG_WITH(rcs-ids,
	[  --with-rcs-ids          compile-in RCS identifiers],
	[with_rcs_ids=$withval],
	[with_rcs_ids=no])
AC_MSG_RESULT($with_rcs_ids)
test "$with_rcs_ids" = yes && AC_DEFINE(USE_RCS_IDS)

###############################################################################
CF_MAN_PAGES([ captoinfo clear infocmp infotocap tic toe tput ])

###############################################################################
CF_HELP_MESSAGE(Extensions:)

### Note that some functions (such as const) are normally disabled anyway.
AC_MSG_CHECKING(if you want to build with function extensions)
AC_ARG_ENABLE(ext-funcs,
	[  --disable-ext-funcs     disable function-extensions],
	[with_ext_funcs=$enableval],
	[with_ext_funcs=yes])
AC_MSG_RESULT($with_ext_funcs)
if test "$with_ext_funcs" = yes ; then
	NCURSES_EXT_FUNCS=1
	AC_DEFINE(HAVE_CURSES_VERSION)
	AC_DEFINE(HAVE_HAS_KEY)
	AC_DEFINE(HAVE_RESIZETERM)
	AC_DEFINE(HAVE_RESIZE_TERM)
	AC_DEFINE(HAVE_USE_DEFAULT_COLORS)
	AC_DEFINE(HAVE_WRESIZE)
	AC_DEFINE(NCURSES_EXT_FUNCS)
else
	NCURSES_EXT_FUNCS=0
fi
AC_SUBST(NCURSES_EXT_FUNCS)

###   use option --enable-const to turn on use of const beyond that in XSI.
AC_MSG_CHECKING(for extended use of const keyword)
AC_ARG_ENABLE(const,
	[  --enable-const          compile with extra/non-standard const],
	[with_ext_const=$enableval],
	[with_ext_const=no])
AC_MSG_RESULT($with_ext_const)
NCURSES_CONST='/*nothing*/'
if test "$with_ext_const" = yes ; then
	NCURSES_CONST=const
fi
AC_SUBST(NCURSES_CONST)

AC_MSG_CHECKING(if you want \$NCURSES_NO_PADDING code)
AC_ARG_ENABLE(no-padding,
	[  --enable-no-padding     compile with $NCURSES_NO_PADDING code],
	[with_no_padding=$enableval],
	[with_no_padding=$with_ext_funcs])
AC_MSG_RESULT($with_no_padding)
test "$with_no_padding" = yes && AC_DEFINE(NCURSES_NO_PADDING)

###   use option --enable-sigwinch to turn on use of SIGWINCH logic
AC_MSG_CHECKING(if you want SIGWINCH handler)
AC_ARG_ENABLE(sigwinch,
	[  --enable-sigwinch       compile with SIGWINCH handler],
	[with_sigwinch=$enableval],
	[with_sigwinch=$with_ext_funcs])
AC_MSG_RESULT($with_sigwinch)
test "$with_sigwinch" = yes && AC_DEFINE(USE_SIGWINCH)

###   use option --enable-tcap-names to allow user to define new capabilities
AC_MSG_CHECKING(if you want user-definable terminal capabilities like termcap)
AC_ARG_ENABLE(tcap-names,
	[  --enable-tcap-names     compile with user-definable terminal capabilities],
	[with_tcap_names=$enableval],
	[with_tcap_names=$with_ext_funcs])
AC_MSG_RESULT($with_tcap_names)
NCURSES_XNAMES=0
test "$with_tcap_names" = yes && NCURSES_XNAMES=1
AC_SUBST(NCURSES_XNAMES)

###############################################################################
# These options are relatively safe to experiment with.
CF_HELP_MESSAGE(Development Code:)
AC_MSG_CHECKING(if you want all development code)
AC_ARG_WITH(develop,
	[  --with-develop          enable all development options],
	[with_develop=$withval],
	[with_develop=no])
AC_MSG_RESULT($with_develop)

###   use option --enable-hard-tabs to turn on use of hard-tabs optimize
AC_MSG_CHECKING(if you want hard-tabs code)
AC_ARG_ENABLE(hard-tabs,
	[  --enable-hard-tabs      compile with hard-tabs code],
	[with_hardtabs=$enableval],
	[with_hardtabs=$with_develop])
AC_MSG_RESULT($with_hardtabs)
test "$with_hardtabs" = yes && AC_DEFINE(USE_HARD_TABS)

###   use option --enable-xmc-glitch to turn on use of magic-cookie optimize
AC_MSG_CHECKING(if you want limited support for xmc)
AC_ARG_ENABLE(xmc-glitch,
	[  --enable-xmc-glitch     compile with limited support for xmc],
	[with_xmc_glitch=$enableval],
	[with_xmc_glitch=$with_develop])
AC_MSG_RESULT($with_xmc_glitch)
test "$with_xmc_glitch" = yes && AC_DEFINE(USE_XMC_SUPPORT)

###############################################################################
# These are just experimental, probably should not be in a package:
CF_HELP_MESSAGE(Experimental Code:)

AC_MSG_CHECKING(if you do not want to assume colors are white-on-black)
AC_ARG_ENABLE(assumed-color,
	[  --disable-assumed-color do not assume anything about default-colors],
	[with_assumed_color=$enableval],
	[with_assumed_color=yes])
AC_MSG_RESULT($with_assumed_color)
test "$with_assumed_color" = yes && AC_DEFINE(USE_ASSUMED_COLOR)

###   use option --enable-hashmap to turn on use of hashmap scrolling logic
AC_MSG_CHECKING(if you want hashmap scrolling-optimization code)
AC_ARG_ENABLE(hashmap,
	[  --disable-hashmap       compile without hashmap scrolling-optimization],
	[with_hashmap=$enableval],
	[with_hashmap=yes])
AC_MSG_RESULT($with_hashmap)
test "$with_hashmap" = yes && AC_DEFINE(USE_HASHMAP)

###   use option --enable-colorfgbg to turn on use of $COLORFGBG environment
AC_MSG_CHECKING(if you want colorfgbg code)
AC_ARG_ENABLE(colorfgbg,
	[  --enable-colorfgbg      compile with $COLORFGBG code],
	[with_colorfgbg=$enableval],
	[with_colorfgbg=no])
AC_MSG_RESULT($with_colorfgbg)
test "$with_colorfgbg" = yes && AC_DEFINE(USE_COLORFGBG)

###   use option --enable-ext-colors to turn on use of colors beyond 16.
AC_MSG_CHECKING(if you want to use experimental extended colors)
AC_ARG_ENABLE(ext-colors,
	[  --enable-ext-colors     compile for experimental 256-color support],
	[with_ext_colors=$enableval],
	[with_ext_colors=no])
AC_MSG_RESULT($with_ext_colors)
NCURSES_EXT_COLORS=0
if test "$with_ext_colors" = yes ; then
	if test "$with_widec" != yes ; then
		AC_MSG_WARN(This option applies only to wide-character library)
	else
		# cannot be ABI 5 since it changes sizeof(cchar_t)
		case $cf_cv_rel_version in
		5.*)
			cf_cv_rel_version=6.0
			cf_cv_abi_version=6
			AC_MSG_WARN(Overriding ABI version to $cf_cv_abi_version)
			;;
		esac
	fi
	NCURSES_EXT_COLORS=1
	AC_DEFINE(NCURSES_EXT_COLORS)
fi
AC_SUBST(NCURSES_EXT_COLORS)

###   use option --enable-ext-mouse to modify coding to support 5-button mice
AC_MSG_CHECKING(if you want to use experimental extended mouse encoding)
AC_ARG_ENABLE(ext-mouse,
	[  --enable-ext-mouse      compile for experimental mouse-encoding],
	[with_ext_mouse=$enableval],
	[with_ext_mouse=no])
AC_MSG_RESULT($with_ext_mouse)
NCURSES_MOUSE_VERSION=1
if test "$with_ext_mouse" = yes ; then
	NCURSES_MOUSE_VERSION=2
fi
AC_SUBST(NCURSES_MOUSE_VERSION)

AC_MSG_CHECKING(if you want experimental safe-sprintf code)
AC_ARG_ENABLE(safe-sprintf,
	[  --enable-safe-sprintf   compile with experimental safe-sprintf code],
	[with_safe_sprintf=$enableval],
	[with_safe_sprintf=no])
AC_MSG_RESULT($with_safe_sprintf)
test "$with_safe_sprintf" = yes && AC_DEFINE(USE_SAFE_SPRINTF)

###   use option --disable-scroll-hints to turn off use of scroll-hints scrolling logic
# when hashmap is used scroll hints are useless
if test "$with_hashmap" = no ; then
AC_MSG_CHECKING(if you want to experiment without scrolling-hints code)
AC_ARG_ENABLE(scroll-hints,
	[  --disable-scroll-hints  compile without scroll-hints code],
	[with_scroll_hints=$enableval],
	[with_scroll_hints=yes])
AC_MSG_RESULT($with_scroll_hints)
test "$with_scroll_hints" = yes && AC_DEFINE(USE_SCROLL_HINTS)
fi

###############################################################################
CF_HELP_MESSAGE(Testing/development Options:)

###	use option --disable-echo to suppress full display compiling commands
AC_MSG_CHECKING(if you want to display full commands during build)
AC_ARG_ENABLE(echo,
	[  --enable-echo           build: display "compiling" commands (default)],
	[with_echo=$enableval],
	[with_echo=yes])
if test "$with_echo" = yes; then
	ECHO_LINK=
else
	ECHO_LINK='@ echo linking $@ ... ;'
	test -n "$LIBTOOL" && LIBTOOL="$LIBTOOL --silent"
fi
AC_MSG_RESULT($with_echo)
AC_SUBST(ECHO_LINK)

###	use option --enable-warnings to turn on all gcc warnings
AC_MSG_CHECKING(if you want to see compiler warnings)
AC_ARG_ENABLE(warnings,
	[  --enable-warnings       build: turn on GCC compiler warnings],
	[with_warnings=$enableval])
AC_MSG_RESULT($with_warnings)

if test -n "$with_warnings"; then
 	ADAFLAGS="$ADAFLAGS -gnatg"
	CF_GCC_WARNINGS
	if test "$cf_with_cxx" = yes ; then
		CF_GXX_WARNINGS(Wno-unused)
	fi
fi
CF_GCC_ATTRIBUTES

###	use option --enable-assertions to turn on generation of assertion code
AC_MSG_CHECKING(if you want to enable runtime assertions)
AC_ARG_ENABLE(assertions,
	[  --enable-assertions     test: turn on generation of assertion code],
	[with_assertions=$enableval],
	[with_assertions=no])
AC_MSG_RESULT($with_assertions)
if test -n "$GCC"
then
	if test "$with_assertions" = no
	then
		AC_DEFINE(NDEBUG)
		CPPFLAGS="$CPPFLAGS -DNDEBUG"
	else
		ADAFLAGS="$ADAFLAGS -gnata"
	fi
fi

###	use option --disable-leaks to suppress "permanent" leaks, for testing
AC_ARG_ENABLE(leaks,
	[  --disable-leaks         test: suppress permanent memory-leaks],
	[test "$enableval" = no && AC_DEFINE(NO_LEAKS)])
AC_DEFINE(HAVE_NC_ALLOC_H)

###	use option --enable-expanded to generate certain macros as functions
AC_ARG_ENABLE(expanded,
	[  --enable-expanded       test: generate functions for certain macros],
	[test "$enableval" = yes && AC_DEFINE(NCURSES_EXPANDED)])

###	use option --disable-macros to suppress macros in favor of functions
AC_ARG_ENABLE(macros,
	[  --disable-macros        test: use functions rather than macros],
	[test "$enableval" = no && AC_DEFINE(NCURSES_NOMACROS)])

# Normally we only add trace() to the debug-library.  Allow this to be
# extended to all models of the ncurses library:
cf_all_traces=no
case "$CFLAGS $CPPFLAGS" in
*-DTRACE*)
	cf_all_traces=yes
	;;
esac

AC_MSG_CHECKING(whether to add trace feature to all models)
AC_ARG_WITH(trace,
[  --with-trace            test: add trace() function to all models of ncurses],
[cf_with_trace=$withval],
[cf_with_trace=$cf_all_traces])
AC_MSG_RESULT($cf_with_trace)

if test "$cf_with_trace" = yes ; then
	LIB_TRACING=all
	ADA_TRACE=TRUE
	CF_ADD_CFLAGS(-DTRACE)
else
	LIB_TRACING=DEBUG
	ADA_TRACE=FALSE
fi

AC_SUBST(ADA_TRACE)

###	Checks for libraries.
AC_CHECK_FUNC(gettimeofday,
	AC_DEFINE(HAVE_GETTIMEOFDAY),[

AC_CHECK_LIB(bsd, gettimeofday,
	AC_DEFINE(HAVE_GETTIMEOFDAY)
	LIBS="$LIBS -lbsd")])dnl CLIX: bzero, select, gettimeofday

CF_MATH_LIB(MATH_LIB,sin(x))
AC_SUBST(MATH_LIB)

###	Checks for header files.
AC_STDC_HEADERS
AC_HEADER_DIRENT
AC_HEADER_TIME
CF_REGEX

dnl These are some other potentially nonportable headers.
AC_CHECK_HEADERS( \
fcntl.h \
getopt.h \
limits.h \
locale.h \
poll.h \
sys/bsdtypes.h \
sys/ioctl.h \
sys/param.h \
sys/poll.h \
sys/select.h \
sys/time.h \
sys/times.h \
ttyent.h \
unistd.h \
wctype.h \
)

# check for ISC (this may also define _POSIX_SOURCE)
# Note: even non-Posix ISC needs <sys/bsdtypes.h> to declare fd_set
if test "$ISC" = yes ; then
	AC_CHECK_LIB(cposix,main)
	AC_CHECK_LIB(inet,bzero,LIBS="$LIBS -linet")dnl also 'select()'
fi

CF_SYS_TIME_SELECT

###	checks for compiler characteristics
AC_LANG_C
AC_C_CONST
AC_C_INLINE
test "$ac_cv_c_inline" != no && AC_DEFINE(CC_HAS_INLINE_FUNCS)

if test $NCURSES_CHTYPE = auto ; then
	CF_TYPEOF_CHTYPE
else
	cf_cv_typeof_chtype=$NCURSES_CHTYPE
fi
AC_SUBST(cf_cv_typeof_chtype)

CF_UNSIGNED_LITERALS
cf_cv_1UL="1"
test "$cf_cv_unsigned_literals" = yes && cf_cv_1UL="${cf_cv_1UL}U"
test "$cf_cv_typeof_chtype"    = long && cf_cv_1UL="${cf_cv_1UL}L"
AC_SUBST(cf_cv_1UL)

if test $NCURSES_MMASK_T = auto ; then
	cf_cv_typeof_mmask_t=long
else
	cf_cv_typeof_mmask_t=$NCURSES_MMASK_T
fi
AC_SUBST(cf_cv_typeof_mmask_t)

###	Checks for external-data
CF_ERRNO
CF_LINK_DATAONLY

###	Checks for library functions.
AC_CHECK_FUNCS( \
getcwd \
getegid \
geteuid \
getttynam \
issetugid \
poll \
remove \
select \
setbuf \
setbuffer \
setvbuf \
sigaction \
sigvec \
strdup \
strstr \
tcgetpgrp \
times \
vsnprintf \
)
if test "$with_getcap" = "yes" ; then
	CF_CGETENT
fi

CF_ISASCII
CF_STRUCT_SIGACTION
CF_FUNC_NANOSLEEP
CF_FUNC_TERMIOS
CF_FUNC_VSSCANF
CF_MKSTEMP

# setup for prototype of fallback for vsscanf()
if test "$cf_cv_func_vsscanf" = vsscanf ; then
	HAVE_VSSCANF=1
else
	HAVE_VSSCANF=0
fi
AC_SUBST(HAVE_VSSCANF)

dnl FIXME (may need this) AC_SYS_RESTARTABLE_SYSCALLS
if test "$cross_compiling" = yes ; then
	AC_MSG_WARN(cross compiling: assume setvbuf params not reversed)
else
	AC_FUNC_SETVBUF_REVERSED
fi
AC_TYPE_SIGNAL
CF_TYPE_SIGACTION
CF_SIZECHANGE
CF_FUNC_MEMMOVE
CF_FUNC_POLL

dnl We'll do our own -g libraries, unless the user's overridden via $CFLAGS
if test -z "$cf_user_CFLAGS" ; then
	CF_STRIP_G_OPT(CFLAGS)
	CF_STRIP_G_OPT(CXXFLAGS)
fi

# Just in case, check if the C compiler has a bool type.
CF_BOOL_DECL(cf_cv_cc_bool_type)

# Check for C++ compiler characteristics (and ensure that it's there!)
if test -n "$CXX" ; then
	AC_LANG_CPLUSPLUS
	CF_STDCPP_LIBRARY
	CF_PROG_CC_C_O(CXX)

	case $GXX_VERSION in
	1*|2.[0-6]*)
		cf_cxx_library=yes
		;;
	*-2.7*|2.7*)
		CF_GPP_LIBRARY
		;;
	*)
		cf_cxx_library=no
		;;
	esac

	AC_CHECK_HEADERS(typeinfo)

	CF_BOOL_DECL
	CF_BOOL_SIZE
	CF_ETIP_DEFINES
	CF_CPP_PARAM_INIT
	CF_CPP_STATIC_CAST
	CF_CPP_VSCAN_FUNC

	CXX_AR='$(AR)'
	CXX_AR_OPTS='$(AR_OPTS)'
	case $cf_cv_system_name in #(vi
	irix*) #(vi
	    if test "$GXX" != yes ; then
		CXX_AR='$(CXX)'
		CXX_AR_OPTS='-ar -o'
	    fi
	    ;;
	sco3.2v5*) #(vi
	    CXXLDFLAGS="-u main"
	    ;;
	solaris2*)
	    if test "$GXX" != yes ; then
		CXX_AR='$(CXX)'
		CXX_AR_OPTS='-xar -o'
	    fi
	    ;;
	esac
	AC_SUBST(CXXLDFLAGS)
	AC_SUBST(CXX_AR)
	AC_SUBST(CXX_AR_OPTS)
else
	cf_cxx_library=no
	cf_cv_builtin_bool=1

	# Just because we are not configuring against C++ right now does not
	# mean that a user will not want to use C++.  Some distributors disable
	# the C++ portion of this configuration as a shortcut (or just to avoid
	# compiling the demo in the c++ directory).  So we need a reasonable
	# default for the 'bool' type.
	#
	# Caveat: since the storage of the bool type is not standardized, it
	# may change.

	if test "$NCURSES_BOOL" != auto ; then
		cf_cv_type_of_bool=$NCURSES_AUTO
	else
		if test "$cf_cv_header_stdbool_h" = 1 ; then
			CF_BOOL_SIZE
		else
			AC_MSG_CHECKING(for fallback type of bool)
			case "$host_cpu" in #(vi
			i?86)	cf_cv_type_of_bool=char	;; #(vi
			*)	cf_cv_type_of_bool=int	;;
			esac
			AC_MSG_RESULT($cf_cv_type_of_bool)
		fi
	fi
fi
AC_SUBST(CXXLIBS)

# If the C compiler did not declare bool, and we did not determine that the C++
# compiler does not declare bool, turn on an ifdef in curses.h that makes the
# ncurses library use the same type as C++ bool.  Note that this allows one to
# specify the type of bool in a configure-script option and postpone
# integration with the C++ compiler provided that the types are compatible.
USE_CXX_BOOL=1
if test $cf_cv_cc_bool_type = 1
then
	# oops: C has a bool.  Unlikely, but C++ could differ.
	USE_CXX_BOOL=0
elif test $cf_cv_builtin_bool = 0
then
	# C++ has no bool
	USE_CXX_BOOL=0
else
	# this is the normal case
	USE_CXX_BOOL='defined(__cplusplus)'
fi
AC_SUBST(USE_CXX_BOOL)

CF_HELP_MESSAGE(Ada95 Binding Options:)

dnl Check for availability of GNU Ada Translator (GNAT).
dnl At the moment we support no other Ada95 compiler.
if test "$cf_with_ada" != "no" ; then
cf_ada_make=gnatmake
AC_CHECK_PROG(gnat_exists, $cf_ada_make, yes, no)
if test "$ac_cv_prog_gnat_exists" = no; then
   cf_ada_make=
else
   CF_GNAT_VERSION
   AC_CHECK_PROG(M4_exists, m4, yes, no)
   if test "$ac_cv_prog_M4_exists" = no; then
      cf_cv_prog_gnat_correct=no
      echo Ada95 binding required program m4 not found. Ada95 binding disabled.
   fi
   if test "$cf_cv_prog_gnat_correct" = yes; then
      AC_MSG_CHECKING(if GNAT works)
      CF_GNAT_TRY_RUN([procedure conftest;],
[with Text_IO;
with GNAT.OS_Lib;
procedure conftest is
begin
   Text_IO.Put ("Hello World");
   Text_IO.New_Line;
   GNAT.OS_Lib.OS_Exit (0);
end conftest;],[cf_cv_prog_gnat_correct=yes],[cf_cv_prog_gnat_correct=no])
      AC_MSG_RESULT($cf_cv_prog_gnat_correct)
   fi
fi
if test	"$cf_cv_prog_gnat_correct" = yes; then
   ADAFLAGS="-O3 -gnatpn $ADAFLAGS"

   AC_MSG_CHECKING(if GNAT pragma Unreferenced works)
   CF_GNAT_TRY_LINK([procedure conftest;],
[with Text_IO;
with GNAT.OS_Lib;
procedure conftest is
   test : Integer;
   pragma Unreferenced (test);
begin
   test := 1;
   Text_IO.Put ("Hello World");
   Text_IO.New_Line;
   GNAT.OS_Lib.OS_Exit (0);
end conftest;],[cf_cv_pragma_unreferenced=yes],[cf_cv_pragma_unreferenced=no])
   AC_MSG_RESULT($cf_cv_pragma_unreferenced)

   # if the pragma is supported, use it (needed in the Trace code).
   if test $cf_cv_pragma_unreferenced = yes ; then
      PRAGMA_UNREF=TRUE
   else
      PRAGMA_UNREF=FALSE
   fi

   AC_ARG_WITH(ada-compiler,
	[  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
	[cf_ada_compiler=$withval],
	[cf_ada_compiler=gnatmake])

   cf_ada_package=terminal_interface

   AC_SUBST(cf_ada_make)
   AC_SUBST(cf_ada_compiler)
   AC_SUBST(cf_ada_package)
   AC_SUBST(ADAFLAGS)
   AC_SUBST(cf_compile_generics)
   AC_SUBST(cf_generic_objects)
   AC_SUBST(PRAGMA_UNREF)

   CF_WITH_PATH(ada-include,
       [  --with-ada-include=DIR  Ada includes are in DIR],
       ADA_INCLUDE,
       PREFIX/lib/ada/adainclude,
       [$]prefix/lib/ada/adainclude)
   AC_SUBST(ADA_INCLUDE)

   CF_WITH_PATH(ada-objects,
       [  --with-ada-objects=DIR  Ada objects are in DIR],
       ADA_OBJECTS,
       PREFIX/lib/ada/adalib,
       [$]prefix/lib/ada/adalib)
   AC_SUBST(ADA_OBJECTS)

fi
fi

### Construct the library-subsets, if any, from this set of keywords:
### none, base, ext_funcs, ext_tinfo, termlib, widechar (see CF_LIB_RULES).
AC_MSG_CHECKING(for library subsets)
if test "$with_termlib" != no ; then
	LIB_SUBSETS="termlib"
	test "$with_ext_funcs" = yes && LIB_SUBSETS="${LIB_SUBSETS}+ext_tinfo"
	LIB_SUBSETS="${LIB_SUBSETS} "
else
	LIB_SUBSETS="termlib+"
	test "$with_ext_funcs" = yes && LIB_SUBSETS="${LIB_SUBSETS}ext_tinfo+"
fi
LIB_SUBSETS="${LIB_SUBSETS}base"
test "$with_widec"     = yes && LIB_SUBSETS="${LIB_SUBSETS}+widechar"
test "$with_ext_funcs" = yes && LIB_SUBSETS="${LIB_SUBSETS}+ext_funcs"
AC_MSG_RESULT($LIB_SUBSETS)

### Construct the list of include-directories to be generated
CF_INCLUDE_DIRS
CF_ADA_INCLUDE_DIRS

### Build up pieces for makefile rules
AC_MSG_CHECKING(default library suffix)
CF_LIB_TYPE($DFT_LWR_MODEL,DFT_ARG_SUFFIX)dnl
AC_SUBST(DFT_ARG_SUFFIX)dnl the string to append to "-lncurses" ("")
AC_MSG_RESULT($DFT_ARG_SUFFIX)

AC_MSG_CHECKING(default library-dependency suffix)
CF_LIB_SUFFIX($DFT_LWR_MODEL,DFT_DEP_SUFFIX)dnl
if test $DFT_LWR_MODEL = shared ; then
	case $cf_cv_system_name in #(vi
	cygwin*)
		DFT_DEP_SUFFIX=".dll.a"
		;;
	esac
fi
AC_SUBST(DFT_DEP_SUFFIX)dnl the corresponding library-suffix (".a")
AC_MSG_RESULT($DFT_DEP_SUFFIX)

AC_MSG_CHECKING(default object directory)
CF_OBJ_SUBDIR($DFT_LWR_MODEL,DFT_OBJ_SUBDIR)dnl
AC_SUBST(DFT_OBJ_SUBDIR)dnl the default object-directory ("obj")
AC_MSG_RESULT($DFT_OBJ_SUBDIR)

# libtool thinks it can make c++ shared libraries (perhaps only g++)
if test "$cf_with_cxx" = yes ; then
AC_MSG_CHECKING(c++ library-dependency suffix)
if test "$with_libtool" != "no"; then
	CXX_LIB_SUFFIX=$DFT_DEP_SUFFIX
else
	CF_LIB_SUFFIX(normal,CXX_LIB_SUFFIX)dnl we normally make a static library
fi
AC_MSG_RESULT($CXX_LIB_SUFFIX)
AC_SUBST(CXX_LIB_SUFFIX)
fi

### Set up low-level terminfo dependencies for makefiles.
TINFO_LIST="$SHLIB_LIST"
if test "$with_termlib" != no ; then

	if test "$with_termlib" != yes ; then
		TINFO_NAME=$with_termlib
		TINFO_ARG_SUFFIX="${with_termlib}`echo ${DFT_ARG_SUFFIX}|sed -e "s/^${LIB_SUFFIX}//"`"
		TINFO_DEP_SUFFIX="${with_termlib}`echo ${DFT_DEP_SUFFIX}|sed -e "s/^${LIB_SUFFIX}//"`"
		TINFO_LIB_SUFFIX="${with_termlib}"
	else
		TINFO_ARG_SUFFIX="${TINFO_NAME}${DFT_ARG_SUFFIX}"
		TINFO_DEP_SUFFIX="${TINFO_NAME}${DFT_DEP_SUFFIX}"
		TINFO_LIB_SUFFIX="${TINFO_NAME}${LIB_SUFFIX}"
	fi

	TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${TINFO_DEP_SUFFIX}"
	TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${TINFO_DEP_SUFFIX}"
	if test "$DFT_LWR_MODEL" = "libtool"; then
		TEST_ARGS="${TEST_DEPS}"
		TEST_ARG2="${TEST_DEP2}"
		TINFO_ARGS="-L${LIB_DIR} $TEST_ARGS"
	else
		TEST_ARGS="-l${TINFO_ARG_SUFFIX}"
		TEST_ARG2="-l${TINFO_ARG_SUFFIX}"
		TINFO_ARGS="-L${LIB_DIR} $TEST_ARGS"
		SHLIB_LIST="$SHLIB_LIST -l${TINFO_LIB_SUFFIX}"
	fi
else
	TINFO_ARGS="-L${LIB_DIR} -l${LIB_NAME}${DFT_ARG_SUFFIX}"
fi
AC_SUBST(TINFO_ARG_SUFFIX)
AC_SUBST(TINFO_DEP_SUFFIX)
AC_SUBST(TINFO_LIB_SUFFIX)
AC_SUBST(TINFO_ARGS)

# needed for Ada95
TINFO_ARGS2=`echo "$TINFO_ARGS" | sed -e 's,-L\.\./,-L../../,'`
AC_SUBST(TINFO_ARGS2)

AC_MSG_CHECKING(where we will install curses.h)
test "$with_overwrite" = no && \
test "x$includedir" = 'x${prefix}/include' && \
	includedir='$(prefix)/include/ncurses'${LIB_SUFFIX}
AC_MSG_RESULT($includedir)

### Resolve a conflict between normal and wide-curses by forcing applications
### that will need libutf8 to add it to their configure script.
if test "$with_overwrite" != no ; then
if test "$NCURSES_LIBUTF8" = 1 ; then
	NCURSES_LIBUTF8='defined(HAVE_LIBUTF8_H)'
	AC_MSG_WARN(Wide-character applications must define HAVE_LIBUTF8_H to include curses.h)
fi
fi

AC_SUBST(TINFO_LIST)
AC_SUBST(SHLIB_LIST)

### predefined stuff for the test programs
AC_DEFINE(HAVE_SLK_COLOR)

### Construct the list of subdirectories for which we'll customize makefiles
### with the appropriate compile-rules.

CF_SRC_MODULES($modules_to_build)
CF_DIRS_TO_MAKE

AC_DEFINE_UNQUOTED(NCURSES_PATHSEP,'$PATHSEP')

AC_DEFINE_UNQUOTED(NCURSES_VERSION_STRING, "${NCURSES_MAJOR}.${NCURSES_MINOR}.${NCURSES_PATCH}")

### Now that we're done running tests, add the compiler-warnings, if any
CF_ADD_CFLAGS($EXTRA_CFLAGS)

################################################################################
test "$use_database" = yes && SUB_MAKEFILES="$SUB_MAKEFILES misc/run_tic.sh:misc/run_tic.in"
AC_OUTPUT( \
	include/MKterm.h.awk \
	include/curses.head:include/curses.h.in \
	include/termcap.h \
	include/unctrl.h \
	$SUB_MAKEFILES \
	Makefile,[
CF_LIB_RULES
],[
### Special initialization commands, used to pass information from the
### configuration-run into config.status

AWK="$AWK"
CF_LIST_MODELS="$cf_list_models"
DFT_ARG_SUFFIX="$DFT_ARG_SUFFIX"
DFT_LWR_MODEL="$DFT_LWR_MODEL"
LDCONFIG="$LDCONFIG"
LIB_NAME="$LIB_NAME"
LIB_SUBSETS="$LIB_SUBSETS"
LIB_SUFFIX="$LIB_SUFFIX"
LIB_TRACING="$LIB_TRACING"
MAKE_TERMINFO="$MAKE_TERMINFO"
NCURSES_OSPEED="$NCURSES_OSPEED"
SRC_SUBDIRS="$SRC_SUBDIRS"
TERMINFO="$TERMINFO"
TINFO_ARG_SUFFIX="$TINFO_ARG_SUFFIX"
TINFO_LIB_SUFFIX="$TINFO_LIB_SUFFIX"
TINFO_NAME="$TINFO_NAME"
WITH_CURSES_H="$with_curses_h"
WITH_ECHO="$with_echo"
WITH_OVERWRITE="$with_overwrite"
cf_cv_abi_version="$cf_cv_abi_version"
cf_cv_do_symlinks="$cf_cv_do_symlinks"
cf_cv_enable_lp64="$cf_cv_enable_lp64"
cf_cv_prog_CC_c_o=$cf_cv_prog_CC_c_o
cf_cv_prog_CXX_c_o=$cf_cv_prog_CXX_c_o
cf_cv_rel_version="$cf_cv_rel_version"
cf_cv_rm_so_locs="$cf_cv_rm_so_locs"
cf_cv_shlib_version="$cf_cv_shlib_version"
cf_cv_shlib_version_infix="$cf_cv_shlib_version_infix"
cf_cv_system_name="$cf_cv_system_name"
cf_with_cxx_binding="$cf_with_cxx_binding"
host="$host"
target="$target"

],cat)dnl
${MAKE-make} preinstall