dnl

dnl Configure script for readline library

dnl

dnl report bugs to chet@po.cwru.edu

dnl

dnl Process this file with autoconf to produce a configure script.

# Copyright (C) 1987-2009 Free Software Foundation, Inc.

#   This program is free software: you can redistribute it and/or modify

#   it under the terms of the GNU General Public License as published by

#   the Free Software Foundation, either version 3 of the License, or

#   (at your option) any later version.

#   This program is distributed in the hope that it will be useful,

#   but WITHOUT ANY WARRANTY; without even the implied warranty of

#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

#   GNU General Public License for more details.

#   You should have received a copy of the GNU General Public License

#   along with this program.  If not, see <http://www.gnu.org/licenses/>.

AC_REVISION([for Readline 6.2, version 2.67])

m4_include([../config/override.m4])

AC_INIT(readline, 6.2, bug-readline@gnu.org)

dnl make sure we are using a recent autoconf version

AC_PREREQ(2.50)

AC_CONFIG_SRCDIR(readline.h)

dnl GDB LOCAL

dnl AC_CONFIG_AUX_DIR(./support)

AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)

AC_CONFIG_HEADERS(config.h)

dnl update the value of RL_READLINE_VERSION in readline.h when this changes

LIBVERSION=6.2

AC_CANONICAL_HOST

AC_CANONICAL_BUILD

dnl configure defaults

opt_curses=no

opt_purify=no

dnl arguments to configure

AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)

AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)

if test "$opt_curses" = "yes"; then

	prefer_curses=yes

fi

if test "$opt_purify" = yes; then

	PURIFY="purify"

else

	PURIFY=

fi

dnl option parsing for optional features

opt_multibyte=yes

opt_static_libs=yes

opt_shared_libs=no

AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)

dnl AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)

AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)

if test $opt_multibyte = no; then

AC_DEFINE(NO_MULTIBYTE_SUPPORT)

fi

dnl load up the cross-building cache file -- add more cases and cache

dnl files as necessary

dnl Note that host and target machine are the same, and different than the

dnl build machine.

CROSS_COMPILE=

if test "x$cross_compiling" = "xyes"; then

    case "${host}" in

    *-cygwin*)

        cross_cache=${srcdir}/cross-build/cygwin.cache

        ;;

    *-mingw*)

        cross_cache=${srcdir}/cross-build/mingw.cache

        ;;

    i[[3456]]86-*-beos*)

        cross_cache=${srcdir}/cross-build/x86-beos.cache

        ;;

    *)  echo "configure: cross-compiling for $host is not supported" >&2

        ;;

    esac

    if test -n "${cross_cache}" && test -r "${cross_cache}"; then

        echo "loading cross-build cache file ${cross_cache}"

        . ${cross_cache}

    fi

    unset cross_cache

    CROSS_COMPILE='-DCROSS_COMPILING'

    AC_SUBST(CROSS_COMPILE)

fi

echo ""

echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"

echo ""

# We want these before the checks, so the checks can modify their values.

test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1

AC_PROG_MAKE_SET

AC_PROG_CC

dnl AC_AIX

AC_MINIX

# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.

test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"

AC_PROG_GCC_TRADITIONAL

AC_PROG_INSTALL

AC_CHECK_PROG(AR, ar, , ar)

dnl Set default for ARFLAGS, since autoconf does not have a macro for it.

dnl This allows people to set it when running configure or make

test -n "$ARFLAGS" || ARFLAGS="cr"

AC_PROG_RANLIB

MAKE_SHELL=/bin/sh

AC_SUBST(MAKE_SHELL)

AC_C_CONST

AC_C_PROTOTYPES

AC_C_CHAR_UNSIGNED

AC_C_VOLATILE

AC_TYPE_SIGNAL

AC_TYPE_SIZE_T

AC_CHECK_TYPE(ssize_t, int)

AC_HEADER_STDC

AC_HEADER_STAT

AC_HEADER_DIRENT

AC_CHECK_FUNCS(fcntl kill lstat)

AC_CHECK_FUNCS(memmove putenv select setenv setlocale \

		strcasecmp strpbrk tcgetattr vsnprintf)

AC_CHECK_FUNCS(isascii isxdigit)

AC_CHECK_FUNCS(getpwent getpwnam getpwuid)

AC_FUNC_STRCOLL

AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \

		limits.h locale.h pwd.h memory.h termcap.h termios.h termio.h)

AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h)

AC_CHECK_HEADERS(sys/ptem.h,,,

[[

#if HAVE_SYS_STREAM_H

#  include <sys/stream.h>

#endif

]])

AC_SYS_LARGEFILE

BASH_SYS_SIGNAL_VINTAGE

BASH_SYS_REINSTALL_SIGHANDLERS

BASH_FUNC_POSIX_SETJMP

BASH_FUNC_LSTAT

BASH_FUNC_STRCOLL

BASH_FUNC_CTYPE_NONASCII

BASH_CHECK_GETPW_FUNCS

AC_HEADER_TIOCGWINSZ

BASH_TYPE_SIG_ATOMIC_T

BASH_TYPE_SIGHANDLER

BASH_HAVE_TIOCSTAT

BASH_HAVE_FIONREAD

BASH_CHECK_SPEED_T

BASH_STRUCT_WINSIZE

BASH_STRUCT_DIRENT_D_INO

BASH_STRUCT_DIRENT_D_FILENO

dnl yuck

case "$host_os" in

aix*)   prefer_curses=yes ;;

esac

BASH_CHECK_LIB_TERMCAP

if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then

	if test "$prefer_curses" = yes; then

		TERMCAP_LIB=-lcurses

	else

		TERMCAP_LIB=-ltermcap	#default

	fi

fi

if test "$TERMCAP_LIB" = "-lncurses"; then

	AC_CHECK_HEADERS(ncurses/termcap.h)

fi

BASH_CHECK_MULTIBYTE

case "$host_cpu" in

*cray*)	LOCAL_CFLAGS=-DCRAY ;;

*s390*) LOCAL_CFLAGS=-fsigned-char ;;

esac

case "$host_os" in

isc*)	LOCAL_CFLAGS=-Disc386 ;;

esac

# shared library configuration section

#

# Shared object configuration section.  These values are generated by

# ${srcdir}/support/shobj-conf

#

if test -f ${srcdir}/support/shobj-conf; then

        AC_MSG_CHECKING(configuration for building shared libraries)

        eval `TERMCAP_LIB=$TERMCAP_LIB ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`

#	case "$SHLIB_LIBS" in

#	*curses*|*termcap*|*termlib*)	;;

#	*)			SHLIB_LIBS="$SHLIB_LIBS $TERMCAP_LIB" ;;

#	esac

        AC_SUBST(SHOBJ_CC)

        AC_SUBST(SHOBJ_CFLAGS)

        AC_SUBST(SHOBJ_LD)

        AC_SUBST(SHOBJ_LDFLAGS)

	AC_SUBST(SHOBJ_XLDFLAGS)

        AC_SUBST(SHOBJ_LIBS)

        AC_SUBST(SHOBJ_STATUS)

	AC_SUBST(SHLIB_STATUS)

	AC_SUBST(SHLIB_XLDFLAGS)

	AC_SUBST(SHLIB_DOT)

	AC_SUBST(SHLIB_LIBPREF)

	AC_SUBST(SHLIB_LIBSUFF)

	AC_SUBST(SHLIB_LIBVERSION)

	AC_SUBST(SHLIB_DLLVERSION)

	AC_SUBST(SHLIB_LIBS)

        AC_MSG_RESULT($SHLIB_STATUS)

	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's

	# `unsupported', turn off any default shared library building

	if test "$SHLIB_STATUS" = 'unsupported'; then

		opt_shared_libs=no

	fi

	# shared library versioning

	# quoted for m4 so I can use character classes

	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]

	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]

	AC_SUBST(SHLIB_MAJOR)

	AC_SUBST(SHLIB_MINOR)

fi

if test "$opt_static_libs" = "yes"; then

	STATIC_TARGET=static

	STATIC_INSTALL_TARGET=install-static

fi

if test "$opt_shared_libs" = "yes"; then

	SHARED_TARGET=shared

	SHARED_INSTALL_TARGET=install-shared

fi

AC_SUBST(STATIC_TARGET)

AC_SUBST(SHARED_TARGET)

AC_SUBST(STATIC_INSTALL_TARGET)

AC_SUBST(SHARED_INSTALL_TARGET)

case "$build_os" in

msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file

*)		BUILD_DIR=`pwd` ;;

esac

case "$BUILD_DIR" in

*\ *)	BUILD_DIR=`echo "$BUILD_DIR" | sed 's: :\\\\ :g'` ;;

*)	;;

esac

AC_SUBST(PURIFY)

AC_SUBST(BUILD_DIR)

AC_SUBST(CFLAGS)

AC_SUBST(LOCAL_CFLAGS)

AC_SUBST(LOCAL_LDFLAGS)

AC_SUBST(LOCAL_DEFS)

AC_SUBST(AR)

AC_SUBST(ARFLAGS)

AC_SUBST(host_cpu)

AC_SUBST(host_os)

AC_SUBST(LIBVERSION)

AC_SUBST(TERMCAP_LIB)

AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],

[

# Makefile uses this timestamp file to record whether config.h is up to date.

echo > stamp-h

])