dnl ### Normal initialization. ######################################
AC_INIT(conserver/main.c)
AC_CONFIG_HEADER(config.h)


dnl ### Set some option defaults. ###################################
if test -z "$CFLAGS"; then
  CFLAGS="-O"
fi
MKDIR="mkdir -p -m 755"
AC_SUBST(MKDIR)


dnl ### Custom settings. ############################################
AC_MSG_CHECKING(for port number specification)
AC_ARG_WITH(port,
	[  --with-port=PORT        Specify port number [conserver]],
	[if test "$withval" != yes -a "$withval" != no; then
		if expr "$withval" : '.*[[^0-9]]' >/dev/null 2>&1; then
			AC_DEFINE_UNQUOTED(SERVICENAME, "$withval")
			AC_MSG_RESULT(/etc/services name '$withval')
		else
			AC_DEFINE_UNQUOTED(PORTNUMBER, $withval)
			AC_MSG_RESULT(port $withval)
		fi
	else
		AC_DEFINE_UNQUOTED(SERVICENAME, "conserver")
		AC_MSG_RESULT(/etc/services name 'conserver')
	fi],
	[AC_DEFINE_UNQUOTED(SERVICENAME, "conserver")
	AC_MSG_RESULT(/etc/services name 'conserver')])

AC_MSG_CHECKING(for master conserver hostname)
AC_ARG_WITH(master,
	[  --with-master=MASTER    Specify master server hostname [console]],
	[if test "$withval" != yes; then
		AC_DEFINE_UNQUOTED(MASTERHOST, "$withval")
		AC_MSG_RESULT('$withval')
	else
		AC_DEFINE_UNQUOTED(MASTERHOST, "console")
		AC_MSG_RESULT('console')
	fi],
	[AC_DEFINE_UNQUOTED(MASTERHOST, "console")
	AC_MSG_RESULT('console')])

AC_MSG_CHECKING(for configuration filename)
AC_ARG_WITH(cffile,
	[  --with-cffile=CFFILE    Specify config filename [conserver.cf] ],
	[if test "$withval" != yes; then
		AC_DEFINE_UNQUOTED(CONFIGFILE, "$withval")
		AC_MSG_RESULT('$withval')
	else
		AC_DEFINE_UNQUOTED(CONFIGFILE, "conserver.cf")
		AC_MSG_RESULT('conserver.cf')
	fi],
	[AC_DEFINE_UNQUOTED(CONFIGFILE, "conserver.cf")
	AC_MSG_RESULT('conserver.cf')])

AC_MSG_CHECKING(for password filename)
AC_ARG_WITH(pwdfile,
	[  --with-pwdfile=PWDFILE  Specify password filename [conserver.passwd] ],
	[if test "$withval" != yes; then
		AC_DEFINE_UNQUOTED(PASSWDFILE, "$withval")
		AC_MSG_RESULT('$withval')
	else
		AC_DEFINE_UNQUOTED(PASSWDFILE, "conserver.passwd")
		AC_MSG_RESULT('conserver.passwd')
	fi],
	[AC_DEFINE_UNQUOTED(PASSWDFILE, "conserver.passwd")
	AC_MSG_RESULT('conserver.passwd')])

AC_MSG_CHECKING(for MAXMEMB setting)
AC_ARG_WITH(maxmemb,
	[  --with-maxmemb=MAXMEMB  Specify maximum consoles per process [16]],
	[if test "$withval" != yes; then
		AC_DEFINE_UNQUOTED(MAXMEMB, $withval)
		AC_MSG_RESULT($withval)
	else
		AC_DEFINE_UNQUOTED(MAXMEMB, 16)
		AC_MSG_RESULT(16)
	fi],
	[AC_DEFINE_UNQUOTED(MAXMEMB, 16)
	AC_MSG_RESULT(16)])

AC_MSG_CHECKING(for MAXGRP setting)
AC_ARG_WITH(maxgrp,
	[  --with-maxgrp=MAXGRP    Specify maximum number of processes [32]],
	[if test "$withval" != yes; then
		AC_DEFINE_UNQUOTED(MAXGRP, $withval)
		AC_MSG_RESULT($withval)
	else
		AC_DEFINE_UNQUOTED(MAXGRP, 32)
		AC_MSG_RESULT(32)
	fi],
	[AC_DEFINE_UNQUOTED(MAXGRP, 32)
	AC_MSG_RESULT(32)])

AC_MSG_CHECKING(for 8bit setting)
AC_ARG_ENABLE(8bit,
	[  --enable-8bit           Enable 8bit data path ],
	[AC_DEFINE_UNQUOTED(CPARITY, 0)
	AC_MSG_RESULT(yes)],
	[AC_DEFINE_UNQUOTED(CPARITY, 1)
	AC_MSG_RESULT(no)])

AC_MSG_CHECKING(for connect() timeout)
AC_ARG_WITH(timeout,
	[  --with-timeout=TIMEOUT  Specify connect() timeout in seconds [10]],
	[if test "$withval" -gt 0 -o "$withval" -lt 300; then
		AC_DEFINE_UNQUOTED(CONNECTTIMEOUT, $withval)
		AC_MSG_RESULT($withval)
	else
		AC_DEFINE_UNQUOTED(CONNECTTIMEOUT, 10)
		AC_MSG_RESULT(10)
	fi],
	[AC_DEFINE_UNQUOTED(CONNECTTIMEOUT, 10)
	AC_MSG_RESULT(10)])

dnl ### Check for compiler et al. ###################################
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET


dnl ### Compiler characteristics. ##################################
AC_AIX
AC_C_CONST


dnl ### Checks for header files. ###################################
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/ioctl.h)

dnl ### POSIX terminal I/O
AC_CHECK_HEADERS(termios.h)
if test "$ac_cv_header_termios_h" != "yes"; then
  dnl ### SysV terminal I/O
  AC_CHECK_HEADERS(termio.h)
  if test "$ac_cv_header_termio_h" != "yes"; then
    dnl ### BSD terminal I/O
    AC_CHECK_HEADERS(sgtty.h)
    if test "$ac_cv_header_sgtty_h" != "yes"; then
      AC_MSG_ERROR([no usable terminal interface detected])
    fi
  fi
fi

AC_CHECK_HEADERS(unistd.h getopt.h sys/vlimit.h sys/resource.h ttyent.h sys/ttold.h sys/uio.h sys/proc.h sys/ioctl_compat.h usersec.h sys/select.h stropts.h sys/audit.h shadow.h sys/time.h crypt.h)
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_TYPE_MODE_T
AC_TYPE_SIGNAL

AC_CACHE_CHECK([if sig_atomic_t is defined], ac_cv_type_sig_atomic_t,
  AC_TRY_LINK([
    #include <signal.h>
  ], [
    sig_atomic_t sigatom;
    sigatom = 1;
  ],
    ac_cv_type_sig_atomic_t=yes,
    ac_cv_type_sig_atomic_t=no
  )
)
if test "$ac_cv_type_sig_atomic_t" != "yes"; then
  AC_DEFINE(sig_atomic_t, volatile int, [Define if <signal.h> does not define sig_atomic_t])
fi

AC_CACHE_CHECK([if socklen_t is defined], ac_cv_type_socklen_t,
  AC_TRY_LINK([
    #include <sys/socket.h>
  ], [
    socklen_t len = 0;
    printf("len == %d\n", len);
  ],
    ac_cv_type_socklen_t=yes,
    ac_cv_type_socklen_t=no
  )
)
if test "$ac_cv_type_socklen_t" != "yes"; then
  AC_DEFINE(socklen_t, int, [Define if <sys/socket.h> does not define socklen_t])
fi



dnl ### Check for needed functions. ################################
AC_CHECK_FUNCS(getopt strerror getrlimit getsid setsid getuserattr setgroups tcgetpgrp tcsetpgrp tcgetattr tcsetattr tcsendbreak setpgrp getutent setttyent wait3 getspnam setlinebuf setvbuf getpseudo ptsname flock sigaction setsockopt getdtablesize putenv memset memcpy memcmp)
AC_FUNC_SETPGRP


dnl ### Check for libraries. #######################################
AC_CHECK_LIB(socket,socket)
AC_CHECK_LIB(nsl,gethostbyname)
AC_CHECK_LIB(crypt,crypt)


dnl ### Create output files. #######################################
AC_SUBST(LIBOBJS)
AC_OUTPUT(Makefile conserver/Makefile conserver.cf/Makefile console/Makefile autologin/Makefile)