dnl Copyright (c) 1991-2012 Kawahara Lab., Kyoto University
dnl Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology
dnl Copyright (c) 2005-2012 Julius project team, Nagoya Institute of Technology
dnl All rights reserved

AC_INIT(00readme.txt)
AC_CONFIG_AUX_DIR(../support)
dnl Checks for optimization flag
AC_CANONICAL_HOST
AC_MSG_CHECKING([host-specific optimization flag])
if test -z "$CFLAGS" ; then
    OPTFLAG=../support/cflags.${host_cpu}-${host_vendor}-${host_os}
    if test -f "$OPTFLAG" ; then
	. $OPTFLAG
	AC_MSG_RESULT([$OPTFLAG])
    else
	AC_MSG_RESULT([no])
    fi
else
    AC_MSG_RESULT([skipped])
fi
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_EXEEXT

dnl Checks for optimization flag
AC_MSG_CHECKING([host specific optimization flag])
if test -z "$CFLAGS" ; then
    OPTFLAG=../support/cflags.${host_cpu}-${host_vendor}-${host_os}
    if test -f "$OPTFLAG" ; then
	. $OPTFLAG
	AC_MSG_RESULT([$OPTFLAG])
    else
	AC_MSG_RESULT([no])
    fi
else
    AC_MSG_RESULT([skipped])
fi

AC_PATH_PROG(RM,rm)
AC_PATH_PROG(PERL,perl)
if test -z "$PERL"; then
	AC_MSG_ERROR([perl not found! installation terminated])
fi
dnl AC_PATH_PROG(NKF, nkf)
dnl if test -z "$NKF"; then
dnl 	AC_MSG_ERROR([nkf not found! installation terminated])
dnl fi

dnl not more use of bison and flex: use pre-compiled source instead
dnl AC_PATH_PROG(BISON, bison)
dnl if test -z "$BISON"; then
dnl 	AC_MSG_ERROR([bison not found! installation terminated])
dnl fi
dnl AC_PATH_PROG(FLEX, flex)
dnl if test -z "$FLEX"; then
dnl 	AC_MSG_ERROR([flex not found! installation terminated])
dnl fi
AC_PATH_PROG(ICONV,iconv)
if test -z "$ICONV"; then
	AC_MSG_WARN([no iconv, gram2sapixml.pl may not work])
else
    AC_MSG_CHECKING([for Jcode module in perl])
    if $PERL -mJcode -e "print;"; then
        AC_MSG_RESULT([yes])
    else
	AC_MSG_WARN([no Jcode module in perl, gram2sapixml.pl may not work])
    fi
fi
dnl check for readline library for nextword
have_readline=no
READLINE_LIBS=""
AC_CHECK_HEADER(readline/readline.h,
    AC_CHECK_LIB(readline, readline,
	   have_readline=yes
	   READLINE_LIBS="-lreadline",
	AC_MSG_CHECKING([for readline in -lreadline with -ltermcap])
	ac_save_LIBS="$LIBS"
	LIBS="$ac_save_LIBS -lreadline -ltermcap"
	AC_TRY_LINK([#include <stdio.h>
#include <readline/readline.h>],[readline("");],
	    AC_MSG_RESULT([yes])
	    READLINE_LIBS="-lreadline -ltermcap"
	    LIBS="$ac_save_LIBS"
	    have_readline=yes,
	  AC_MSG_RESULT([no])
	  AC_MSG_CHECKING([for readline in -lreadline with -lncurses])
	  LIBS="$ac_save_LIBS -lreadline -lncurses"
	  AC_TRY_LINK([#include <stdio.h>
#include <readline/readline.h>],[readline("");],
	      AC_MSG_RESULT([yes])
	      READLINE_LIBS="-lreadline -lncurses"
	      LIBS="$ac_save_LIBS"
	      have_readline=yes,
	    AC_MSG_RESULT([no])
	    READLINE_LIBS=""
	    LIBS="$ac_save_LIBS"
	  )
	)
    )
)
if test "$have_readline" = yes; then
    AC_DEFINE(HAVE_READLINE)
    dnl check some definition
    AC_MSG_CHECKING([for readline verion > 4.1])
    AC_EGREP_HEADER(rl_compentry_func_t, readline/readline.h,
	AC_MSG_RESULT([yes]),
      AC_MSG_RESULT([no - use old func])
      AC_DEFINE(HAVE_READLINE_4_1_OLDER)
    )
fi
AC_SUBST(READLINE_LIBS)

dnl check for malloc.h
AC_CHECK_HEADERS(malloc.h)

AC_OUTPUT(Makefile mkdfa/Makefile mkdfa/mkdfa.pl mkdfa/mkfa-1.44-flex/Makefile dfa_minimize/Makefile generate/Makefile accept_check/Makefile nextword/Makefile yomi2voca/Makefile yomi2voca/yomi2voca.pl gram2sapixml/Makefile gram2sapixml/gram2sapixml.pl dfa_determinize/Makefile)