configure.in

dnl
dnl $Id: configure.in,v 1.22 2010/10/16 02:28:55 rader Exp $
dnl

#----------------------------------------
# boiler-plate...

AC_INIT(Makefile.in)
AC_CONFIG_AUX_DIR(config)
AC_CANONICAL_SYSTEM
AC_PREREQ(2.12)
CNAGIOS_VERSION=`cat VERSION`
AC_SUBST(CNAGIOS_VERSION)
nagios_default_prefix=/usr/local/nagios
AC_PATH_PROG(CC, cc, NOT_FOUND)
if test "$CC" = "NOT_FOUND"; then
  AC_MSG_ERROR([can not continue: cc not found])
fi

#----------------------------------------
# embeded perl...

AC_PATH_PROG(PERL, perl, NOT_FOUND)
if test "$PERL" = "NOT_FOUND"; then
  AC_MSG_ERROR([can not continue: perl not found])
fi

PERL_CFLAGS=`perl -MExtUtils::Embed -e ccopts`
if test "$PERL_CFLAGS" = "NOT_FOUND"; then
  AC_MSG_ERROR([can not determine perl cc flags])
fi
AC_SUBST(PERL_CFLAGS)

PERL_LIBS=`perl -MConfig -e 'print $Config{libs}'`
if test "$PERL_LIBS" = "NOT_FOUND"; then
  AC_MSG_ERROR([can not determine perl libs])
fi
AC_SUBST(PERL_LIBS)

PERL_LDFLAGS=`perl -MExtUtils::Embed -e ldopts`
if test "$PERL_LDFLAGS" = "NOT_FOUND"; then
  AC_MSG_ERROR([can not determine perl ld flags])
fi
AC_SUBST(PERL_LDFLAGS)

#----------------------------------------
# nagios etc...

if test -d "/etc/nagios"; then
  NAGIOS_ETC_DIR=/etc/nagios
fi
if test -d "$nagios_default_prefix/etc"; then
  NAGIOS_ETC_DIR=$nagios_default_prefix/etc
fi
if test -d "$prefix/etc"; then
  NAGIOS_ETC_DIR=$prefix/etc
fi
AC_ARG_WITH(etc-dir,[
Cnagios Options:
  --with-etc-dir=DIR      use cnagios.pl, cnagiosrc and cnagios.help in DIR], NAGIOS_ETC_DIR=$withval)
echo "nagios etc dir... $NAGIOS_ETC_DIR"
if test "X $NAGIOS_ETC_DIR" = "X "; then
  echo
  echo "FATAL ERROR: Nagios etc directory not found"
  echo "Try ./configure --with-etc-dir=/path/to/nagios/etc"
  echo
  exit
fi
AC_SUBST(NAGIOS_ETC_DIR)

#----------------------------------------
# nagios var...

if test -d "/var/nagios"; then
  NAGIOS_VAR_DIR=/var/nagios
fi
if test -d "/var/log/nagios"; then
  NAGIOS_VAR_DIR=/var/log/nagios
fi
if test -d "$nagios_default_prefix/var"; then
  NAGIOS_VAR_DIR=$nagios_default_prefix/var
fi
if test -d "$prefix/var"; then
  NAGIOS_VAR_DIR=$prefix/var
fi
AC_ARG_WITH(var-dir,[  --with-var-dir=DIR      use status.dat status file in DIR], NAGIOS_VAR_DIR=$withval)
echo "nagios var dir... $NAGIOS_VAR_DIR"
if test "X $NAGIOS_VAR_DIR" = "X "; then
  echo
  echo "FATAL ERROR: Nagios var directory not found"
  echo "Try ./configure --with-var-dir=/path/to/nagios/var"
  echo
  exit
fi
AC_SUBST(NAGIOS_VAR_DIR)

#----------------------------------------
# nagios status data file and it's format...

NAGIOS_STATUS_LOG="$NAGIOS_VAR_DIR/status.log"
NAGIOS_STATUS_DAT="$NAGIOS_VAR_DIR/status.dat"
NAGIOS_MAX_SUPPORTED_VERSION=4

if test -f "$NAGIOS_STATUS_LOG" ; then
  NAGIOS_STATUS_DATA_FILE=$NAGIOS_STATUS_LOG
fi

if test -f "$NAGIOS_STATUS_DAT" ; then
  NAGIOS_STATUS_DATA_FILE=$NAGIOS_STATUS_DAT
fi

if test -f "$NAGIOS_STATUS_LOG" && test -f "$NAGIOS_STATUS_DAT" ; then
  echo
  echo "WARNING: detected status.log and status.dat in $NAGIOS_VAR_DIR"
  echo "WARNING: using $NAGIOS_STATUS_DAT"
  echo
fi

AC_ARG_WITH(status-file,[  --with-status-file=FILE expect to find status file at FILE], DATA_FILE=$withval)
if test "X $DATA_FILE" != "X "; then
  NAGIOS_STATUS_DATA_FILE=$DATA_FILE
fi

if test "X $NAGIOS_STATUS_DATA_FILE" = "X "; then
  echo
  echo "FATAL ERROR: failed to find status.dat or status.log in $NAGIOS_VAR_DIR"
  echo "It appears you do not have a working Nagios installation."
  echo
  exit
fi

AC_ARG_WITH(nagios-data,[  --with-nagios-data=VER  expect status file to be in VER data format], DATA_VER=$withval)
if test "X $DATA_VER" != "X "; then
  NAGIOS_STATUS_DATA_VERSION=$DATA_VER
else
  # autodetect...
  NAGIOS_STATUS_DATA_VERSION=`head -20 $NAGIOS_STATUS_DATA_FILE | perl -ane '
    BEGIN { $v='UNKNOWN'; }
    if ( $_ =~ /Nagios 1.*? Status File/ ) { $v="1"; last; }
    if ( $_ =~ /version=(\d+)/ ) { $v="$1"; last; }
    END { print $v; }
  '`
fi

if test "$NAGIOS_STATUS_DATA_VERSION" = "UNKNOWN" ; then
  echo
  echo "FATAL ERROR: failed to detect data version in $NAGIOS_STATUS_DATA_FILE"
  echo "It appears you do not have a working Nagios installation."
  echo
  exit
fi

if test "$NAGIOS_STATUS_DATA_VERSION" -gt $NAGIOS_MAX_SUPPORTED_VERSION ; then
  echo
  echo "FATAL ERROR: unsupported data version: $NAGIOS_STATUS_DATA_VERSION"
  echo "You are using a version of nagios that isn't currently supported"
  echo
  exit
fi

echo "nagios status file... $NAGIOS_STATUS_DATA_FILE"
echo "nagios data version... $NAGIOS_STATUS_DATA_VERSION"
AC_SUBST(NAGIOS_STATUS_DATA_FILE)
AC_SUBST(NAGIOS_STATUS_DATA_VERSION)

#----------------------------------------
# defines...

if test $build_vendor = "sun"; then
  DEFINES="-DSUN"
fi
AC_SUBST(DEFINES)

#----------------------------------------
# autoconf subs...

AC_OUTPUT( \
  Makefile \
  cnagios.h
)

echo "./configure is done"
echo "next do \"make\""