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

AC_INIT(at.c)
AC_PREFIX_DEFAULT(/usr)
AC_CONFIG_HEADER(config.h)
AC_PREREQ(2.7)


VERSION="3.1.7"
if test "X$CFLAGS" = "X"; then
CFLAGS=-O
fi

AC_SUBST(VERSION)

AC_CANONICAL_HOST

dnl Checks for programs.

AC_C_CROSS
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_YACC
AC_PROG_LEX


AC_MSG_CHECKING(Checking for HP-UX -Aa)

case "$host" in
  *-*-hpux*)
    # HPUX flags from jgotts@engin.umich.edu
    if test -z "$GCC"; then
      CFLAGS="$CFLAGS -Aa -D_HPUX_SOURCE"
    fi
    AC_MSG_RESULT(yes)
    ;;
  *)
    AC_MSG_RESULT(no)
    ;;
esac
AC_MSG_CHECKING(Trying to compile a trivial ANSI C program)
AC_TRY_RUN([ main(int ac, char **av) { return 0; } ],
    AC_MSG_RESULT(yes),
    AC_MSG_RESULT(no)
    AC_MSG_ERROR(Could not compile and run even a trivial ANSI C program - check CC.),
    AC_MSG_ERROR(Could not compile and run even a trivial ANSI C program - check CC.))

AC_MSG_CHECKING(__attribute__((noreturn)))
AC_TRY_COMPILE([], [void __attribute__((noreturn)) panic(void);],
    AC_MSG_RESULT(yes)
    AC_DEFINE(HAVE_ATTRIBUTE_NORETURN),
    AC_MSG_RESULT(no)
)
dnl Checks for libraries.

AC_CHECK_LIB(fl,yywrap,
	[],
	AC_DEFINE(NEED_YYWRAP)
)

dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h syslog.h unistd.h errno.h sys/fcntl.h getopt.h)
AC_CHECK_HEADERS(stdarg.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIGNAL
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_STRUCT_TM


dnl Checks for library functions.
AC_FUNC_VPRINTF
AC_FUNC_GETLOADAVG
AC_CHECK_FUNCS(getcwd mktime strftime setreuid setresuid sigaction)
AC_CHECK_FUNCS(waitpid)

dnl Checking for programs

AC_PATH_PROG(MAILX, mailx)
if test "$ac_cv_path_MAILX" != "" ; then
AC_DEFINE_UNQUOTED(MAILX,"$ac_cv_path_MAILX")
MAIL_CMD="$ac_cv_path_MAILX"
fi

AC_PATH_PROG(MAILC, mail)
if test "$ac_cv_path_MAILC" != "" ; then
AC_DEFINE_UNQUOTED(MAILC,"$ac_cv_path_MAILC")
MAIL_CMD="$ac_cv_path_MAILC"
fi

AC_PATH_PROG(SENDMAIL, sendmail, , $PATH:/usr/lib:/usr/sbin )
if test "$ac_cv_path_SENDMAIL" != "" ; then
AC_DEFINE_UNQUOTED(SENDMAIL,"$ac_cv_path_SENDMAIL")
MAIL_CMD="$ac_cv_path_SENDMAIL"
fi

AC_SUBST(MAIL_CMD)

AC_MSG_CHECKING(etcdir)
AC_ARG_WITH(etcdir,
[  --with-etcdir=PATH      Directory containing permission files (default /etc).],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need ETCDIR.)
    ;;
  yes)
    ETCDIR=/etc
    AC_MSG_RESULT(/etc)
    ;;
  *)
    ETCDIR="$withval"
    AC_MSG_RESULT($withval)
    ;;
  esac ],
  ETCDIR="/etc"
  AC_MSG_RESULT(/etc)
)
AC_SUBST(ETCDIR)

AC_MSG_CHECKING(location of pid file)
if test -d /var/run ; then
    AC_DEFINE_UNQUOTED(PIDFILE, "/var/run/atd.pid")
    AC_MSG_RESULT(/var/run)
elif test -d /usr/run ; then
    AC_DEFINE_UNQUOTED(PIDFILE, "/usr/run/atd.pid")
    AC_MSG_RESULT(/usr/run)
else
    AC_DEFINE_UNQUOTED(PIDFILE, "$ETCDIR/atd.pid")
    AC_MSG_RESULT(/etc)
fi

AC_MSG_CHECKING(location of spool directory)
if test -d /var/spool/atjobs ; then
  sp=/var/spool
  AC_DEFINE(SPOOLDIR, "/var/spool")
  AC_MSG_RESULT(Using existing /var/spool/at{jobs|run})
elif  test -d /var/spool/cron ; then
  sp=/var/spool/cron
  AC_DEFINE(SPOOLDIR, "/var/spool/cron")
  AC_MSG_RESULT(/var/spool/cron)
elif test -d /usr/spool/cron ; then
  sp=/usr/spool/cron
  AC_DEFINE(SPOOLDIR, "/usr/spool/cron")
  AC_MSG_RESULT(/usr/spool/cron)
else
  AC_ERROR(Cannot determine value for spool directory)
fi

AC_MSG_CHECKING(jobdir)
AC_ARG_WITH(jobdir,
[  --with-jobdir=PATH      Directory containing at jobs (default SPOOLDIR/atjobs).],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need JOBDIR.)
    ;;
  yes)
    AC_DEFINE_UNQUOTED(ATJOB_DIR, "$sp/atjobs")
    AC_MSG_RESULT($ATJOB_DIR)
    ATJBD="$sp/atjobs"
    ;;
  *)
    AC_DEFINE_UNQUOTED(ATJOB_DIR, "$withval")
    AC_MSG_RESULT($withval)
    ATJBD="$withval"
    ;;
  esac ],
  AC_DEFINE_UNQUOTED(ATJOB_DIR, "$sp/atjobs")
  AC_MSG_RESULT($sp/atjobs)
  ATJBD="$sp/atjobs"
)
AC_SUBST(ATJBD)

AC_MSG_CHECKING(atspool)
AC_ARG_WITH(atspool,
[  --with-atspool=PATH    Directory containing at spool (default SPOOLDIR/atspool).],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need ATSPOOL.)
    ;;
  yes)
    AC_DEFINE_UNQUOTED(ATSPOOL_DIR, "$sp/atspool")
    AC_MSG_RESULT($sp/atspool)
    ATSPD=$sp/atspool
    ;;
  *)
    AC_DEFINE_UNQUOTED(ATSPOOL_DIR, "$withval")
    AC_MSG_RESULT($withval)
    ATSPD=$withval
    ;;
  esac ],
  AC_DEFINE_UNQUOTED(ATSPOOL_DIR, "$sp/atspool")
  AC_MSG_RESULT($sp/atspool)
  ATSPD=$sp/atspool
)
AC_SUBST(ATSPD)

AC_MSG_CHECKING(default at queue)
AC_ARG_WITH(atqueue,
[ --with-atqueue=DEFAULT_AT_QUEUE	Default queue for at (default a). ],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need DEFAULT_AT_QUEUE.)
    ;;
  yes)
    AC_DEFINE_UNQUOTED(DEFAULT_AT_QUEUE, 'a')
    AC_MSG_RESULT(a)
    DEFATQ=a
    ;;
  *)
    AC_DEFINE_UNQUOTED(DEFAULT_AT_QUEUE, "$withval")
    AC_MSG_RESULT($withval)
    DEFATQ=$withval
    ;;
    esac ],
    AC_DEFINE_UNQUOTED(DEFAULT_AT_QUEUE, 'a')
    AC_MSG_RESULT(a)
    DEFATQ=a
)

AC_SUBST(DEFATQ)

AC_MSG_CHECKING(default batch queue)
AC_ARG_WITH(batchqueue,
[ --with-batchqueue=DEFAULT_BATCH_QUEUE	Default queue for batch (default b). ],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need DEFAULT_BATCH_QUEUE.)
    ;;
  yes)
    AC_DEFINE_UNQUOTED(DEFAULT_BATCH_QUEUE, 'b')
    AC_MSG_RESULT(b)
    DEFBQ=b
    ;;
  *)
    AC_DEFINE_UNQUOTED(DEFAULT_BATCH_QUEUE, "$withval")
    AC_MSG_RESULT($withval)
    DEFBQ=$withval
    ;;
    esac ],
    AC_DEFINE_UNQUOTED(DEFAULT_BATCH_QUEUE, 'b')
    AC_MSG_RESULT(b)
    DEFBQ=b
)

AC_SUBST(DEFBQ)

AC_MSG_CHECKING(maximum load average for batch to start jobs)
AC_ARG_WITH(loadavg_mx,
[ --with-loadavg_mx=LOADAVG_MX	Default max. load average for batch (default 0.8). ],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need LOADAVG_MX.)
    ;;
  yes)
    LOADAVG_MX=0.8
    AC_MSG_RESULT(0.8)
    ;;
  *)
    LOADAVG_MX="$withval";
    AC_MSG_RESULT($withval)
    ;;
    esac ],
    LOADAVG_MX=0.8
    AC_MSG_RESULT(0.8)
)
AC_SUBST(LOADAVG_MX)

AC_MSG_CHECKING(username to run under)
AC_ARG_WITH(daemon_username,
[ --with-daemon_username=DAEMON_USERNAME	Username to run under (default daemon) ],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need DAEMON_USERNAME.)
    ;;
  yes)
    DAEMON_USERNAME=daemon
    AC_MSG_RESULT(daemon)
    ;;
  *)
    DAEMON_USERNAME="$withval";
    AC_MSG_RESULT($withval)
    ;;
    esac ],
    DAEMON_USERNAME=daemon
    AC_MSG_RESULT(daemon)
)
AC_SUBST(DAEMON_USERNAME)

AC_MSG_CHECKING(groupname to run under)
AC_ARG_WITH(daemon_groupname,
[ --with-daemon_groupname=DAEMON_GROUPNAME	Groupname to run under (default daemon) ],
[ case "$withval" in
  no)
    AC_MSG_ERROR(Need DAEMON_GROUPNAME.)
    ;;
  yes)
    DAEMON_GROUPNAME=daemon
    AC_MSG_RESULT(daemon)
    ;;
  *)
    DAEMON_GROUPNAME="$withval";
    AC_MSG_RESULT($withval)
    ;;
    esac ],
    DAEMON_GROUPNAME=daemon
    AC_MSG_RESULT(daemon)
)
AC_SUBST(DAEMON_GROUPNAME)

AC_OUTPUT(Makefile atrun atd.8 atrun.8 at.1 batch)