nagios-plugins/configure.in

dnl Process this file with autoconf to produce a configure script.
AC_REVISION ($Revision$)
AC_PREREQ(2.58)
AC_INIT(nagios-plugins,1.4.5)
AC_CONFIG_SRCDIR(NPTest.pm)
AM_INIT_AUTOMAKE([1.8.3])
AM_CONFIG_HEADER(config.h)
AC_CANONICAL_HOST

RELEASE=1
AC_SUBST(RELEASE)

AC_PREFIX_DEFAULT(/usr/local/nagios)

dnl Deprecated configure options
AC_ARG_WITH(nagios_user,,
 	AC_MSG_ERROR([--with-nagios-user is a deprecated option]))
AC_ARG_WITH(nagios_group,,
 	AC_MSG_ERROR([--with-nagios-group is a deprecated option]))

dnl Figure out how to invoke "install" and what install options to use.
AC_PROG_INSTALL
AC_SUBST(INSTALL)

dnl Must come very early on due to coreutils requirement
dnl Takes care of AC_GNU_SOURCE, AC_AIX and AC_MINIX
gl_USE_SYSTEM_EXTENSIONS

AC_PROG_CC
AC_PROG_CPP
AC_PROG_GCC_TRADITIONAL
AC_PROG_LIBTOOL

AC_PROG_MAKE_SET
AC_PROG_AWK

AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_FUNC_ERROR_AT_LINE

AC_CONFIG_LIBOBJ_DIR(lib)
AC_FUNC_GETLOADAVG([lib])

ifdef([AC_FUNC_STRTOD],[AC_FUNC_STRTOD],[AM_FUNC_STRTOD])

PLUGIN_TEST=`echo $srcdir/plugins/t/*.t|sed -e 's,\.*/plugins/,,g'`
AC_SUBST(PLUGIN_TEST)dnl

SCRIPT_TEST=`echo $srcdir/plugins-scripts/t/*.t|sed -e 's,\.*/plugins-scripts/,,g'`
AC_SUBST(SCRIPT_TEST)dnl

WARRANTY="The nagios plugins come with ABSOLUTELY NO WARRANTY. You may redistribute\ncopies of the plugins under the terms of the GNU General Public License.\nFor more information about these matters, see the file named COPYING.\n"
AC_SUBST(WARRANTY)

SUPPORT="Send email to nagios-users@lists.sourceforge.net if you have questions\nregarding use of this software. To submit patches or suggest improvements,\nsend email to nagiosplug-devel@lists.sourceforge.net.\nPlease include version information with all correspondence (when possible,\nuse output from the --version option of the plugin itself).\n"
AC_SUBST(SUPPORT)

dnl CGIURL has changed for Nagios with 1.0 beta
AC_ARG_WITH(cgiurl,
	ACX_HELP_STRING([--with-cgiurl=DIR],
		[sets URL for cgi programs]),
	with_cgiurl=$withval,
	with_cgiurl=/nagios/cgi-bin)
CGIURL="$with_cgiurl"
AC_DEFINE_UNQUOTED(CGIURL,"$CGIURL",[URL of CGI programs])

AC_ARG_WITH(trusted_path,
	ACX_HELP_STRING([--with-trusted-path=PATH],
		[sets trusted path for executables called by scripts (default=/bin:/sbin:/usr/bin:/usr/sbin)]),
	with_trusted_path=$withval,
	with_trusted_path=/bin:/sbin:/usr/bin:/usr/sbin)
AC_SUBST(with_trusted_path)

EXTRAS=
EXTRAS_ROOT=
dnl PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/etc:/usr/local/bin:/usr/local/sbin:$PATH

LDFLAGS="$LDFLAGS -L."

ac_cv_uname_m=`uname -m`
ac_cv_uname_s=`uname -s`
ac_cv_uname_r=`uname -r`
ac_cv_uname_v=`uname -v`

PKG_ARCH=`uname -p`
REV_DATESTAMP=`date '+%Y.%m.%d.%H.%M'`
REV_TIMESTAMP=`date '+%Y%m%d%H%M%S'`

AC_SUBST(PKG_ARCH)
AC_SUBST(REV_DATESTAMP)
AC_SUBST(REV_TIMESTAMP)

dnl Checks for programs.
AC_PATH_PROG(PYTHON,python)
AC_PATH_PROG(SH,sh)
AC_PATH_PROG(PERL,perl)
AC_PATH_PROG(LIBGNUTLS_CONFIG,libgnutls-config)
AC_PATH_PROG(HOSTNAME,hostname)
AC_PATH_PROG(BASENAME,basename)

dnl allow them to override the path of perl
AC_ARG_WITH(perl,
        ACX_HELP_STRING([--with-perl=PATH],
	                [sets path to perl executable]),
			with_perl=$withval,with_perl=$PERL)
AC_SUBST(PERL, $with_perl)

dnl openssl/gnutls
AC_ARG_WITH(openssl,
            AC_HELP_STRING([--with-openssl=DIR], 
                           [path to openssl installation]),)

AC_ARG_WITH(gnutls,
            ACX_HELP_STRING([--with-gnutls=PATH],
                            [path to gnutls installation root]),)

dnl you can only have one or the other
if test ! "$with_openssl" = "" && test ! "$with_openssl" = "no"; then
	with_gnutls="no"
fi
if test ! "$with_gnutls" = "" && test ! "$with_gnutls" = "no"; then
	with_openssl="no"
fi

dnl list of possible dirs to try to autodetect openssl
dnl if $dir/include exists, we consider it found
dnl the order should allow locally installed versions to override distros' ones
OPENSSL_DIRS="/usr /usr/local /usr/slocal /usr/local/openssl /usr/local/ssl \
              /opt /opt/openssl"

dnl
dnl Check for miscellaneous stuff
dnl 

case $host_vender-$host_os in
osf*)
	AC_DEFINE(_OSF_SOURCE,1,[OSF needs this for getaddrinfo])
	;;
esac

dnl
dnl Checks for libraries.
dnl

AC_CHECK_LIB(dce,main,SOCKETLIBS="$SOCKETLIBS -ldce")
AC_CHECK_LIB(nsl,main,SOCKETLIBS="$SOCKETLIBS -lnsl")
AC_CHECK_LIB(socket,socket,SOCKETLIBS="$SOCKETLIBS -lsocket")
AC_CHECK_LIB(resolv,main,SOCKETLIBS="$SOCKETLIBS -lresolv")
AC_SUBST(SOCKETLIBS)

dnl
dnl check for math-related functions needing -lm
AC_CHECK_HEADERS(math.h)
AC_CHECK_LIB(m,floor,MATHLIBS="-lm")
AC_SUBST(MATHLIBS)

dnl Check for libtap, to run perl-like tests
AC_CHECK_LIB(tap, plan_tests, 
	EXTRA_TEST=test_utils
	AC_SUBST(EXTRA_TEST)
	)

dnl Check for PostgreSQL libraries
_SAVEDLIBS="$LIBS"
_SAVEDCPPFLAGS="$CPPFLAGS"
AC_ARG_WITH(pgsql,
	ACX_HELP_STRING([--with-pgsql=DIR],
		[sets path to pgsql installation]),
	PGSQL=$withval,)
AC_CHECK_LIB(crypt,main)
if test "$ac_cv_lib_crypt_main" = "yes"; then
  if test -n "$PGSQL"; then
    LDFLAGS="$LDFLAGS -L$PGSQL/lib"
    CPPFLAGS="$CPPFLAGS -I$PGSQL/include"
  fi
  AC_CHECK_LIB(pq,PQsetdbLogin,,,-lcrypt)
  if test "$ac_cv_lib_pq_PQsetdbLogin" = "yes"; then
    AC_CHECK_HEADERS(pgsql/libpq-fe.h)
    AC_CHECK_HEADERS(postgresql/libpq-fe.h)
    AC_CHECK_HEADERS(libpq-fe.h)
    if [[ -n "$PGSQL" -a "$ac_cv_header_libpq_fe_h" = "yes" ]]; then
      PGLIBS="-L$PGSQL/lib -lpq -lcrypt"
      PGINCLUDE="-I$PGSQL/include"
    elif test  "$ac_cv_header_pgsql_libpq_fe_h" = "yes"; then
      PGLIBS="-lpq -lcrypt"
      PGINCLUDE="-I/usr/include/pgsql"
    elif test  "$ac_cv_header_postgresql_libpq_fe_h" = "yes"; then
      PGLIBS="-L$PGSQL/lib -lpq -lcrypt"
      PGINCLUDE="-I/usr/include/postgresql"
    elif test  "$ac_cv_header_libpq_fe_h" = "yes"; then
      PGLIBS="-L$PGSQL/lib -lpq -lcrypt"
      PGINCLUDE="-I$PGSQL/include"
    fi
    if test -z "$PGINCLUDE"; then
      AC_MSG_WARN([Skipping PostgreSQL plugin (check_pgsql)])
      AC_MSG_WARN([install PostgreSQL headers to compile this plugin (see REQUIREMENTS).])
    else
      AC_SUBST(PGLIBS)
      AC_SUBST(PGINCLUDE)
      EXTRAS="$EXTRAS check_pgsql"
    fi
  else
    AC_MSG_WARN([Skipping PostgreSQL plugin (check_pgsql)])
    AC_MSG_WARN([LIBS="$LIBS" CPPFLAGS="$CPPFLAGS"])
    AC_MSG_WARN([install PostgreSQL libs to compile this plugin (see REQUIREMENTS).])
  fi
else
  AC_MSG_WARN([Skipping PostgreSQL plugin (check_pgsql)])
  AC_MSG_WARN([install lib crypt and PostgreSQL libs to compile this plugin (see REQUIREMENTS).])
fi
LIBS="$_SAVEDLIBS"
CPPFLAGS="$_SAVEDCPPFLAGS"

dnl Check for radius libraries
_SAVEDLIBS="$LIBS"
AC_CHECK_LIB(radiusclient,rc_read_config)
if test "$ac_cv_lib_radiusclient_rc_read_config" = "yes"; then
  EXTRAS="$EXTRAS check_radius"
	RADIUSLIBS="-lradiusclient"
  AC_SUBST(RADIUSLIBS)
else
  AC_MSG_WARN([Skipping radius plugin])
  AC_MSG_WARN([install radius libs to compile this plugin (see REQUIREMENTS).])
fi
LIBS="$_SAVEDLIBS"

dnl Check for LDAP libraries
_SAVEDLIBS="$LIBS"
AC_CHECK_LIB(ldap,main,,,-llber)
if test "$ac_cv_lib_ldap_main" = "yes"; then
  LDAPLIBS="-lldap -llber"\
  LDAPINCLUDE="-I/usr/include/ldap"
  AC_SUBST(LDAPLIBS)
  AC_SUBST(LDAPINCLUDE)
  AC_CHECK_FUNCS(ldap_set_option)
  EXTRAS="$EXTRAS check_ldap"
	AC_CHECK_FUNCS(ldap_init ldap_set_option ldap_get_option ldap_start_tls_s)
else
  AC_MSG_WARN([Skipping LDAP plugin])
  AC_MSG_WARN([install LDAP libs to compile this plugin (see REQUIREMENTS).])
fi
LIBS="$_SAVEDLIBS"

dnl Check for mysql libraries
dnl Default is to search path for mysql_config
AC_ARG_WITH(mysql,
	ACX_HELP_STRING([--with-mysql=DIR],
		[Compiles mysql plugins. Expects DIR/bin/mysql_config]),
	with_mysql=$withval,
	with_mysql=yes)
if test $with_mysql != "no" ; then
  if test -x $with_mysql/bin/mysql_config ; then
    MYSQLCONFIG="$with_mysql/bin/mysql_config"
  else
    AC_PATH_PROG(MYSQLCONFIG, mysql_config)
  fi
  if test -z "$MYSQLCONFIG"; then
    with_mysql="not found"
    AC_MSG_WARN([Skipping mysql plugin])
    AC_MSG_WARN([install mysql client libs to compile this plugin (see REQUIREMENTS).])
  else
    with_mysql=$MYSQLCONFIG
    EXTRAS="$EXTRAS check_mysql check_mysql_query"
    MYSQLINCLUDE=`$MYSQLCONFIG --include`
    # Mysql 3 does not support --include. --cflags should be sufficient
    if test $? -ne 0 ; then
      MYSQLINCLUDE=""
    fi
    MYSQLLIBS=`$MYSQLCONFIG --libs`
    MYSQLCFLAGS=`$MYSQLCONFIG --cflags`
    AC_SUBST(MYSQLINCLUDE)
    AC_SUBST(MYSQLLIBS)
    AC_SUBST(MYSQLCFLAGS)
  fi
fi

AC_CHECK_HEADERS(unistd.h)

dnl Check for AF_INET6 support - unistd.h required for Darwin
AC_CACHE_CHECK([for IPv6 support], with_ipv6, [
	AC_TRY_COMPILE([#ifdef HAVE_UNISTD_H
			#include <unistd.h>
			#endif
			#include <netinet/in.h>
			#include <sys/socket.h>],
			[struct sockaddr_in6 sin6;
			void *p;

			sin6.sin6_family = AF_INET6;
			sin6.sin6_port = 587;
			p = &sin6.sin6_addr;],
			[with_ipv6=yes], 
			[with_ipv6=no])
	])

if test x"$with_ipv6" != xno ; then
	AC_DEFINE(USE_IPV6,1,[Enable IPv6 support])
fi

dnl #########################################################################
dnl Check if Posix getaddrinfo() is available.  It is also possible to use
dnl the version from the lwres library distributed with BIND.
dnl #########################################################################
AC_ARG_ENABLE([emulate-getaddrinfo],
              ACX_HELP_STRING([--enable-emulate-getaddrinfo],
                             [enable getaddrinfo emulation (default=no)]),
              ,
              enable_emulate_getaddrinfo=no)

AC_ARG_WITH(lwres,
            ACX_HELP_STRING([--with-lwres=DIR],
                           [use lwres library for getaddrinfo (default=no)]),
            ,
            with_lwres=no)

dnl ## enable force to test getaddrinfo.c
if test x$enable_emulate_getaddrinfo = xforce ; then
        enable_emulate_getaddrinfo=yes
        have_getaddrinfo=no
else

have_getaddrinfo=no
if test x$with_lwres != xno ; then
        if test "$with_lwres" != yes ; then
                   CPPFLAGS="-I${with_lwres}/include $CPPFLAGS"
                   LDFLAGS="-L${with_lwres}/lib $LDFLAGS"
        fi
        AC_CHECK_HEADERS(lwres/netdb.h, ,
                        [AC_MSG_ERROR([cannot find <lwres/netdb.h>])])
        AC_CHECK_LIB(lwres, lwres_getaddrinfo, ,
                     [AC_MSG_ERROR([cannot find the lwres library])],
                     -lnsl -lpthread)
        have_getaddrinfo=yes
fi

if test x$have_getaddrinfo != xyes ; then
        AC_SEARCH_LIBS(getaddrinfo, socket resolv bind nsl c_r cr, have_getaddrinfo=yes)
fi

dnl # Special nonsense for systems that actually have getaddrinfo but
dnl # redefine the name to something else, e.g. OSF
if test x$have_getaddrinfo != xyes ; then
        AC_MSG_CHECKING(if getaddrinfo is redefined in netdb.h)
        AC_TRY_LINK([
#               include <netdb.h>
        ], [
                struct addrinfo hints, *res;
                int err;

                err = getaddrinfo ("host", "service", &hints, &res);
        ], [
                have_getaddrinfo=yes
                AC_MSG_RESULT(yes)
        ], [AC_MSG_RESULT(no)])
fi

fi

if test x$have_getaddrinfo != xno ; then
        if test x$enable_emulate_getaddrinfo != xno ; then
                AC_MSG_ERROR([getaddrinfo found but emulate-getaddrinfo was enabled])
        fi
        AC_DEFINE(HAVE_GETADDRINFO, 1,
                  [Does system provide RFC 2553/Posix getaddrinfo?])
else
        if test x$enable_emulate_getaddrinfo != xyes ; then
dnl                AC_MSG_ERROR([getaddrinfo not found: try --with-lwres or --enable-emulate-getaddrinfo])
               enable_emulate_getaddrinfo=yes
               AC_MSG_WARN([enabling getaddrinfo emulation])
        fi
	EXTRA_NETOBJS="$EXTRA_NETOBJS getaddrinfo.o"
fi

if test x"$enable_emulate_getaddrinfo" != xno ; then
    have_resolver=no

  dnl  Try for getipnodebyname
    AC_SEARCH_LIBS(getipnodebyname, resolv bind nsl c_r cr, have_resolver=yes)
    if test x"$have_resolver" != xno ; then
         AC_DEFINE(HAVE_GETIPNODEBYNAME, 1,
                   [Set when getipnodebyname is available])
    fi

  dnl  Try for gethostbyname_r
    if test x"$have_resolver" = xno ; then
        AC_SEARCH_LIBS(gethostbyname_r, resolv bind nsl c_r cr,
                       [have_resolver=yes
                        ACX_WHICH_GETHOSTBYNAME_R])
    fi

  dnl  Try for gethostbyname
    if test x"$have_resolver" = xno ; then
        if test x"$enable_pthreads" != xno ; then
            AC_MSG_WARN([using threads but cannot find gethostbyname_r or getipnodebyname])
        fi
        AC_SEARCH_LIBS(gethostbyname, resolv bind nsl, ,
                       [AC_MSG_ERROR([cannot find gethostbyname])])
    fi
    EXTRA_NETOBJS="$EXTRA_NETOBJS gethostbyname.o"

fi

dnl Checks for Kerberos. Must come before openssl checks for Redhat EL 3
AC_CHECK_HEADERS(krb5.h,FOUNDINCLUDE=yes,FOUNDINCLUDE=no)
if test "$FOUNDINCLUDE" = "no"; then
  _SAVEDCPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$_SAVEDCPPFLAGS -I/usr/kerberos/include"
  unset ac_cv_header_krb5_h
  AC_CHECK_HEADERS(krb5.h,
                   KRB5INCLUDE="-I/usr/kerberos/include"
                   FOUNDINCLUDE=yes,
                   FOUNDINCLUDE=no)
fi
AC_SUBST(KRBINCLUDE)
if test "$FOUNDINCLUDE" = "no"; then
  CPPFLAGS="$_SAVEDCPPFLAGS"
fi


dnl openssl detection/configuration
if ! test x"$with_openssl" = x"no"; then
	dnl Check for OpenSSL location if it wasn't already specified
	if ! test -d "$with_openssl"; then
		for d in $OPENSSL_DIRS; do
			if test -x ${d}/bin/openssl || test -x ${d}/sbin/openssl ; then
				with_openssl=$d
			fi
		done
	fi

	_SAVEDCPPFLAGS="$CPPFLAGS"
	_SAVEDLDFLAGS="$LDFLAGS"
	dnl Check for OpenSSL header files
	unset FOUNDINCLUDE
	if test x"$with_openssl" != x"/usr" ; then
		CPPFLAGS="$CPPFLAGS -I$with_openssl/include"
		LDFLAGS="$LDFLAGS -L$with_openssl/lib"
	fi

	dnl check for openssl in $dir/include/openssl
	AC_CHECK_HEADERS(openssl/ssl.h openssl/x509.h openssl/rsa.h openssl/pem.h openssl/crypto.h openssl/err.h,
	                 SSLINCLUDE="-I$with_openssl/include"
	                 FOUNDINCLUDE=yes,
	                 FOUNDINCLUDE=no)
	dnl else check to see if $dir/include has it
	if test "$FOUNDINCLUDE" = "no"; then
		AC_CHECK_HEADERS(ssl.h x509.h rsa.h pem.h crypto.h err.h,
		                 SSLINCLUDE="-I$with_openssl/include"
		                 FOUNDINCLUDE=yes,
		                 FOUNDINCLUDE=no)
	fi
	AC_SUBST(SSLINCLUDE)
	dnl if we didn't find it, reset CPPFLAGS
	if test "$FOUNDINCLUDE" = "no"; then
		CPPFLAGS="$_SAVEDCPPFLAGS"
		LDFLAGS="$_SAVEDLDFLAGS"
	fi

	dnl Check for crypto lib
	_SAVEDLIBS="$LIBS"
	LIBS="-L${with_openssl}/lib"
	AC_CHECK_LIB(crypto,CRYPTO_lock)
	if test "$ac_cv_lib_crypto_CRYPTO_lock" = "yes"; then
		dnl Check for SSL lib
		AC_CHECK_LIB(ssl,main, SSLLIBS="-lssl -lcrypto",,-lcrypto)
	fi
	LIBS="$_SAVEDLIBS"

	dnl test headers and libs to decide whether check_http should use SSL
	if test "$ac_cv_lib_crypto_CRYPTO_lock" = "yes"; then
		if test "$ac_cv_lib_ssl_main" = "yes"; then
			if test "$FOUNDINCLUDE" = "yes"; then
				FOUNDOPENSSL="yes"
			fi
		fi
	fi
fi


dnl check for gnutls if openssl isn't found (or is disabled)
if test ! "$FOUNDOPENSSL" = "yes" && test ! "$with_gnutls" = "no"; then
	if test ! "$with_gnutls" = ""; then
		CPPFLAGS="$CPPFLAGS -I${with_gnutls}/include"
	elif test ! "$LIBGNUTLS_CONFIG" = ""; then
		CPPFLAGS="$CPPFLAGS -I`$LIBGNUTLS_CONFIG --prefix`"
	fi
	AC_CHECK_HEADERS([gnutls/openssl.h],FOUNDGNUTLS="yes",)
	if test "$FOUNDGNUTLS" = "yes"; then
		AC_CHECK_LIB(gnutls-openssl,main,SSLLIBS="-lgnutls-openssl")
	fi
fi
dnl end check for gnutls

if test "$FOUNDOPENSSL" = "yes" || test "$FOUNDGNUTLS" = "yes"; then
	check_tcp_ssl="check_simap check_spop check_jabber check_nntps check_ssmtp"
	AC_SUBST(check_tcp_ssl)
	AC_SUBST(SSLLIBS)
	AC_DEFINE(HAVE_SSL,1,[Define if SSL libraries are found])
	if test "$FOUNDOPENSSL" = "yes"; then
		AC_DEFINE(USE_OPENSSL,1,[Define if using OpenSSL libraries])
		with_openssl="yes"
		with_gnutls="no"
	else
		AC_DEFINE(USE_GNUTLS,1,[Define if using gnutls libraries])
		with_gnutls="yes"
		with_openssl="no"
	fi
else
	dnl else deliberately disabled or no ssl support available
	AC_MSG_WARN([OpenSSL or GnuTLS libs could not be found or were disabled])
	with_openssl="no"
	with_gnutls="no"
fi

dnl
dnl Checks for header files.
dnl

AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(signal.h strings.h string.h syslog.h uio.h errno.h sys/types.h sys/time.h sys/socket.h sys/loadavg.h sys/un.h sys/poll.h)
AC_CHECK_HEADERS(features.h stdarg.h sys/unistd.h ctype.h stdlib.h)

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

AC_CACHE_CHECK([for va_copy],ac_cv_HAVE_VA_COPY,[
AC_TRY_LINK([#include <stdarg.h>
va_list ap1,ap2;], [va_copy(ap1,ap2);],
ac_cv_HAVE_VA_COPY=yes,
ac_cv_HAVE_VA_COPY=no)])
if test x"$ac_cv_HAVE_VA_COPY" = x"yes"; then
    AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
else    
    AC_CACHE_CHECK([for __va_copy],ac_cv_HAVE___VA_COPY,[
    AC_TRY_LINK([#include <stdarg.h>
    va_list ap1,ap2;], [__va_copy(ap1,ap2);],
    ac_cv_HAVE___VA_COPY=yes,
    ac_cv_HAVE___VA_COPY=no)])
    if test x"$ac_cv_HAVE___VA_COPY" = x"yes"; then
        AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
    fi
fi

AC_CHECK_FUNCS(vsnprintf snprintf asprintf vasprintf)
AC_CACHE_CHECK([for C99 vsnprintf],ac_cv_HAVE_C99_VSNPRINTF,[
AC_TRY_RUN([
#include <sys/types.h>
#include <stdarg.h>
void foo(const char *format, ...) { 
       va_list ap;
       int len;
       char buf[5];

       va_start(ap, format);
       len = vsnprintf(buf, 0, format, ap);
       va_end(ap);
       if (len != 5) exit(1);

       va_start(ap, format);
       len = vsnprintf(0, 0, format, ap);
       va_end(ap);
       if (len != 5) exit(1);

       if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);

       exit(0);
}
main() { foo("hello"); }
],
ac_cv_HAVE_C99_VSNPRINTF=yes,ac_cv_HAVE_C99_VSNPRINTF=no,ac_cv_HAVE_C99_VSNPRINTF=cross)])
if test x"$ac_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
    AC_DEFINE(HAVE_C99_VSNPRINTF,1,[Define if system has C99 compatible vsnprintf])
fi

AC_TRY_COMPILE([#include <sys/time.h>],
               [struct timeval *tv;
                struct timezone *tz;],
               AC_DEFINE(HAVE_STRUCT_TIMEVAL,1,[Define if we have a timeval structure])
               AC_TRY_COMPILE([#include <sys/time.h>],
                              [struct timeval *tv;
                               struct timezone *tz;
                               gettimeofday(tv, tz);],
                              AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define if gettimeofday is found]),
                              AC_DEFINE(NEED_GETTIMEOFDAY,1,[Define if gettimeofday is needed])))

dnl Checks for library functions.
AC_CHECK_FUNCS(memmove select socket strdup strstr strtod strtol strtoul floor)
AC_CHECK_FUNCS(poll)

AC_MSG_CHECKING(return type of socket size)
AC_TRY_COMPILE([#include <stdlib.h>
                #include <sys/types.h>
                #include <sys/socket.h>],
               [int a = send(1, (const void *) buffer, (size_t *) 0, (int *) 0);],
               ac_cv_socket_size_type=["size_t"]
                AC_MSG_RESULT(size_t),
               ac_cv_socket_size_type=["int"]
                AC_MSG_RESULT(int))

AC_DEFINE_UNQUOTED(SOCKET_SIZE_TYPE, $ac_cv_socket_size_type ,
	[Define type of socket size])

AC_ARG_WITH(proc-loadavg,
            ACX_HELP_STRING([--with-proc-loadavg=PATH],
                            [path to /proc/loadavg or equivalent]),
            ac_cv_proc_loadavg=$withval)
AC_MSG_CHECKING([for /proc/loadavg])
if test -n "$ac_cv_proc_loadavg"; then
  AC_MSG_RESULT([(command line) $ac_cv_proc_loadavg])
elif test -f "/proc/loadavg"; then
  AC_MSG_RESULT([found /proc/loadavg])
  ac_cv_proc_loadavg="/proc/loadavg"
else
  AC_MSG_RESULT([no])
fi

if test -n "$ac_cv_proc_loadavg"; then
  AC_DEFINE(HAVE_PROC_LOADAVG,1,[Define if /proc/loadavg or similar exists])
  AC_DEFINE_UNQUOTED(PROC_LOADAVG,"/proc/loadavg",[Location of /proc/loadavg])
fi

dnl #### Process table test

AC_PATH_PROG(PATH_TO_PS,ps)

AC_MSG_CHECKING(for ps syntax)
AC_ARG_WITH(ps_command,
            ACX_HELP_STRING([--with-ps-command=PATH], 
                            [Verbatim command to execute for ps]),
            PS_COMMAND=$withval)
AC_ARG_WITH(ps_format,
            ACX_HELP_STRING([--with-ps-format=FORMAT],
                            [Format string for scanning ps output]),
            PS_FORMAT=$withval)
AC_ARG_WITH(ps_cols,
            ACX_HELP_STRING([--with-ps-cols=NUM], 
                            [Number of columns in ps command]),
            PS_COLS=$withval)
AC_ARG_WITH(ps_varlist,
            ACX_HELP_STRING([--with-ps-varlist=LIST],
                            [Variable list for sscanf of 'ps' output]),
            PS_VARLIST=$withval)

if test -n "$PS_COMMAND" && test -n "$PS_FORMAT" && test -n "$PS_COLS" && test -n "$PS_VARLIST"; then 
	ac_cv_ps_command="$PS_COMMAND"
	ac_cv_ps_format="$PS_FORMAT"
	ac_cv_ps_varlist="$PS_VARLIST"
	ac_cv_ps_cols="$PS_COLS"
	AC_MSG_RESULT([(command-line) $ac_cv_ps_command])

dnl Now using the pst3/kmem hack for solaris systems to avoid truncation
elif test "$ac_cv_uname_s" = "SunOS"; then
	#
	# this is a very, very ugly hack, to hardcode the location for plugins
	#
	if test "$libexecdir" = '${exec_prefix}/libexec'; then
		if test "$exec_prefix" = "NONE"; then
			if test "$prefix" = "NONE"; then
				pst3="$ac_default_prefix/libexec/pst3"
			else
				pst3="$prefix/libexec/pst3"
			fi
		else
			pst3="$exec_prefix/libexec/pst3"
		fi
	else
		pst3="$libexecdir/pst3"
	fi
	ac_cv_ps_command="$pst3"
	ac_cv_ps_format="%s %d %d %d %d %f %s %n"
	ac_cv_ps_varlist="[procstat,&procuid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([using nagios-plugins internal ps for solaris])
	EXTRAS_ROOT="$EXTRAS_ROOT pst3"

dnl Some gnu/linux systems (debian for one) don't like -axwo and need axwo.
dnl so test for this first...
elif ps axwo 'stat comm vsz rss user uid pid ppid args' 2>/dev/null | \
	egrep -i ["^ *STAT +[UCOMAND]+ +VSZ +RSS +USER +UID +PID +PPID +COMMAND"] > /dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS axwo 'stat uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl For OpenBSD 3.2 & 3.3. Must come before ps -weo
dnl Should also work for FreeBSD 5.2.1 and 5.3
dnl  STAT UCOMM              VSZ   RSS USER      PPID COMMAND
elif ps -axwo 'stat comm vsz rss user uid pid ppid args' 2>/dev/null | \
	egrep -i ["^ *STAT +[UCOMAND]+ +VSZ +RSS +USER +UID +PID +PPID +COMMAND"] > /dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -axwo 'stat uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl Some *BSDs have different format for ps. This is mainly to catch FreeBSD 4. 
dnl Limitation: Only first 16 chars returned for ucomm field
dnl Must come before ps -weo
elif ps -axwo 'stat uid pid ppid vsz rss pcpu ucomm command' 2>/dev/null | \
	egrep -i ["^ *STAT +UID +PID +PPID +VSZ +RSS +%CPU +UCOMM +COMMAND"] > /dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -axwo 'stat uid pid ppid vsz rss pcpu ucomm command'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl  STAT UCOMM              VSZ   RSS USER       UID  PPID COMMAND
elif ps -weo 'stat comm vsz rss user uid pid ppid etime args' 2>/dev/null | \
	egrep -i ["^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[ID]+ +P[PID]+ +[ELAPSD]+ +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procetime,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -weo 'stat uid pid ppid vsz rss pcpu etime comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %s %n"
	ac_cv_ps_cols=10
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl FreeBSD
elif ps waxco 'state command vsz rss uid user pid ppid' 2>/dev/null | \
	egrep -i ["^STAT +COMMAND +VSZ +RSS +UID +USER +PID +PPID"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS waxco 'state uid pid ppid vsz rss pcpu command command'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl BSD-like mode in RH 6.1
elif ps waxno 'state comm vsz rss uid user pid ppid args' 2>/dev/null | \
	egrep -i ["^S +COMMAND +VSZ +RSS +UID +USER +PID +PPID +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS waxno 'state uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl SunOS 4.1.3:
dnl  F  UID  PID  PPID  CP  PRI  NI  SZ  RSS  WCHAN  STAT  TT  TIME  COMMAND
dnl Need the head -1 otherwise test will work because arguments are found
elif ps -laxnwww 2>/dev/null | head -1 | \
	egrep -i ["^ *F(LAGS)? +UID +PID +PPID +CP +PRI +NI +(SZ)|(VSZ)|(SIZE) +RSS +WCHAN +STAT? +TTY? +TIME +COMMAND"] >/dev/null
then
	ac_cv_ps_varlist="[&procuid,&procpid,&procppid,&procvsz,&procrss,procstat,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS -laxnwww"
	ac_cv_ps_format="%*s %d %d %d %*s %*s %*s %d %d %*s %s %*s %*s %n%s"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl Debian Linux / procps v1.2.9:
dnl  FLAGS   UID   PID  PPID PRI  NI   SIZE   RSS WCHAN       STA TTY TIME COMMAND
dnl    100     0     1     0   0   0    776    76  c0131c8c   S  ffff  0:11 init [2]
dnl
elif ps laxnwww 2>/dev/null | \
	egrep -i ["^ *F(LAGS)? +UID +PID +PPID +PRI +NI +(VSZ)|(SIZE) +RSS +WCHAN +STAT? TTY +TIME +COMMAND"] >/dev/null
then
	ac_cv_ps_varlist="[&procuid,&procpid,&procppid,procstat,&procvsz,&procrss,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS laxnwww"
	ac_cv_ps_format="%*s %d %d %d %*s %*s %d %d %*s %s %*s %*s %n%s"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl OpenBSD (needs to come early because -exo appears to work, but does not give all procs)
elif ps -axo 'stat comm vsz rss user uid pid ppid args' 2>/dev/null | \
	egrep -i ["^ *S[TAUES]* +[UCOMDNA]+ +[VSIZE]+ +R[S]+ +U[SER]+ +U[ID]+ +P[PID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -axo 'stat uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl Tru64 - needs %*[ +<>] in PS_FORMAT. 
dnl Has /usr/bin/ps and /sbin/ps - force sbin version
dnl Can't use vsize and rssize because comes back with text (eg, 1.5M instead 
dnl of 1500). Will need big changes to check_procs to support
elif /sbin/ps -eo 'stat uid pid ppid pcpu etime comm args' 2>/dev/null | \
	egrep -i ["^ *S +[UID]+ +[PID]+ +[PID]+ +[%CPU]+ +[ELAPSD]+ +[COMMAND]+ +[COMMAND]+"] > /dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procpcpu,procetime,procprog,&pos]"
	ac_cv_ps_command="/sbin/ps -eo 'stat uid pid ppid pcpu etime comm args'"
	ac_cv_ps_format=["%s%*[ +<>] %d %d %d %f %s %s %n"]
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

elif ps -eo 's comm vsz rss user uid pid ppid args' 2>/dev/null | \
	egrep -i ["^S[TAUES]* +C[OMDNA]+ +[VSIZE]+ +U[SER]+ +U[ID]+ +P[PID]+ +P[PID]+ +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -eo 's uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl AIX 4.3.3 and 5.1 do not have an rss field
elif ps -eo 'stat uid pid ppid vsz pcpu comm args' 2>/dev/null | \
	egrep -i ["^ *S[TAUES]* +UID +PID +PPID +VSZ +%CPU +COMMAND +COMMAND"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -eo 'stat uid pid ppid vsz pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %f %s %n"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command - with no RSS])

dnl Solaris 2.6
elif ps -Ao 's comm vsz rss uid user pid ppid args' 2>/dev/null | \
	egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PID +PPID +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -Ao 's uid pid ppid vsz rss pcpu comm args'"
	# There must be no space between the %s and %n due to a wierd problem in sscanf where
	# it will return %n as longer than the line length
	ac_cv_ps_format="%s %d %d %d %d %d %f %s%n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

elif ps -Ao 'status comm vsz rss uid user pid ppid args' 2>/dev/null | \
	egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PID +PPID +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -Ao 'status uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

elif ps -Ao 'state comm vsz rss uid user pid ppid args' 2>/dev/null | \
	egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PID +PPID +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -Ao 'state uid pid ppid vsz rss pcpu comm args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=9
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl wonder who takes state instead of stat
elif ps -ao 'state command vsz rss user pid ppid args' 2>/dev/null | \
	egrep -i ["^S[TAUES]* +C[OMDNA]+ +V[SIZE]+ +RSS +UID +USER +PID +PPID +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&procpcpu,procprog,&pos]"
	ac_cv_ps_command="$PATH_TO_PS -ao 'state uid pid ppid vsz rss pcpu command args'"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl IRIX 53
elif ps -el 2>/dev/null | \
	egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +P +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&procvsz,&procrss,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS -el (IRIX 53)"
	ac_cv_ps_format="%*s %s %d %d %d %*s %*s %*s %*s %d %d %*s %*s %*s %n%s"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl IRIX 63
elif ps -el 2>/dev/null | \
	egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +P +ADDR +SZ +RSS +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS -el (IRIX 63)"
	ac_cv_ps_format="%*s %s %d %d %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s"
	ac_cv_ps_cols=6
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl AIX 4.1:
dnl     F S      UID   PID  PPID   C PRI NI ADDR  SZ  RSS   WCHAN    TTY  TIME CMD
dnl    303 A        0     0     0 120  16 -- 1c07  20   24              -  0:45 swapper
elif ps -el 2>/dev/null | \
	egrep -i ["^ *F +S +UID +PID +PPID +C +PRI +NI +ADDR +SZ +WCHAN +TTY +TIME +[RGSCOMDNA]+"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS -el (AIX 4.1 and HP-UX)"
	ac_cv_ps_format="%*s %s %d %d %d %*s %*s %*s %*s %*s %*s %*s %*s %n%s"
	ac_cv_ps_cols=6
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl AIX?
elif ps glaxen 2>/dev/null | \
	egrep -i ["^ *F +UID +PID +PPID +PRI +NI +VSZ +RSS +WCHAN +STAT +TTY +TIME +COMMAND"] >/dev/null
then
	ac_cv_ps_varlist="[&procuid,&procpid,&procppid,&procvsz,&procrss,procstat,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS glaxen"
	ac_cv_ps_format="%*s %d %d %d %*s %*s %d %d %*s %s %*s %*s %n%s"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl MacOSX / Darwin
dnl TODO: MacOSX has commands with spaces which will cause problems to PS_FORMAT
dnl Some truncation will happen in UCOMM column
dnl STAT      VSZ    RSS   UID  PPID %CPU UCOMM            COMMAND
dnl Ss      52756  22496   501     1   6.9 Window Manager   /System/Library/CoreServices/WindowServer -daemon
elif ps wwaxo 'state vsz rss uid pid ppid pcpu ucomm command' 2>/dev/null | \
	egrep -i ["^STAT +VSZ +RSS +UID +PPID +%CPU +UCOMM +COMMAND"] >/dev/null
then
	ac_cv_ps_command="$PATH_TO_PS wwaxo 'state vsz rss uid pid ppid pcpu ucomm command'"
	ac_cv_ps_varlist="[procstat,&procvsz,&procrss,&procuid,&procpid,&procppid,&procpcpu,procprog,&pos]"
	ac_cv_ps_format="%s %d %d %d %d %d %f %s %n"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

dnl UnixWare 
elif ps -Al 2>/dev/null | \
	egrep -i ["^ *F +S +UID +PID +PPID +CLS +PRI +NI +C +ADDR +SZ +WCHAN +TTY +TIME +COMD"] >/dev/null
then
	ac_cv_ps_varlist="[procstat,&procuid,&procpid,&procppid,&pos,procprog]"
	ac_cv_ps_command="$PATH_TO_PS -Al"
	ac_cv_ps_format="%*s %s %d %d %d %*s %*s %*s %*s %*s %*s %*s %*s %*s %n%s"
	ac_cv_ps_cols=8
	AC_MSG_RESULT([$ac_cv_ps_command])

else
	AC_MSG_WARN([unable to find usable ps syntax - check_procs and check_nagios will not be compiled])
fi

if test -n "$ac_cv_ps_varlist" ; then
	AC_DEFINE_UNQUOTED(PS_VARLIST,$ac_cv_ps_varlist,
		[Variable list for sscanf of 'ps' output])
	AC_DEFINE_UNQUOTED(PS_COMMAND,"$ac_cv_ps_command",
		[Verbatim command to execute for ps in check_procs])
	AC_DEFINE_UNQUOTED(PS_FORMAT,"$ac_cv_ps_format",
		[Format string for scanning ps output in check_procs])
	AC_DEFINE_UNQUOTED(PS_COLS,$ac_cv_ps_cols,
		[Number of columns in ps command])
	EXTRAS="$EXTRAS check_procs check_nagios"
	if echo "$ac_cv_ps_varlist" | grep -q "procetime"; then
		AC_DEFINE(PS_USES_PROCETIME,"yes",
		          [Whether the ps utility uses the "procetime" field])
	fi
fi

AC_PATH_PROG(PATH_TO_PING,ping)
AC_PATH_PROG(PATH_TO_PING6,ping6)

AC_ARG_WITH(ping_command,
	ACX_HELP_STRING([--with-ping-command=SYNTAX],
		[sets syntax for ICMP ping]),
	with_ping_command=$withval,)

AC_MSG_CHECKING(for ICMP ping syntax)
ac_cv_ping_packets_first=no
ac_cv_ping_has_timeout=no
if test -n "$with_ping_command"
then
	AC_MSG_RESULT([(command-line) $with_ping_command])
	if test -n "$ac_cv_ping_packets_first"
	then
		ac_cv_ping_packets_first=yes
		ac_cv_ping_has_timeout=yes
	fi

elif [[ "z$ac_cv_uname_s" = "zUnixWare" ]] && \
	$PATH_TO_PING -n -s 127.0.0.1 56 1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
        with_ping_command="$PATH_TO_PING -n -U -c %d %s"
	ac_cv_ping_packets_first=yes
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -U -w 10 -c 1 127.0.0.1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
        with_ping_command="$PATH_TO_PING -n -U -w %d -c %d %s"
	ac_cv_ping_packets_first=yes
  ac_cv_ping_has_timeout=yes
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -U -c 1 127.0.0.1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
        with_ping_command="$PATH_TO_PING -n -U -c %d %s"
	ac_cv_ping_packets_first=yes
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -c 1 127.0.0.1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n -c %d %s"
	ac_cv_ping_packets_first=yes
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n 127.0.0.1 -c 1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n %s -c %d"
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING 127.0.0.1 -n 1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING %s -n %d"
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -s 127.0.0.1 56 1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n -s %s 56 %d"
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -h 127.0.0.1 -s 56 -c 1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n -h %s -s 56 -c %d"
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -s 56 -c 1 127.0.0.1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n -s 56 -c %d %s"
	ac_cv_ping_packets_first=yes
	AC_MSG_RESULT([$with_ping_command])

elif $PATH_TO_PING -n -c 1 127.0.0.1 2>/dev/null | \
	egrep -i "^round-trip|^rtt" >/dev/null
then
	with_ping_command="$PATH_TO_PING -n -c %d %s"
	ac_cv_ping_packets_first=yes
	AC_MSG_RESULT([$with_ping_command])

else
	AC_MSG_WARN([unable to find usable ping syntax])
fi

AC_DEFINE_UNQUOTED(PING_COMMAND,"$with_ping_command",
	[path and args for ICMP ping command])

if test "x$ac_cv_ping_packets_first" != "xno"
then
	AC_DEFINE(PING_PACKETS_FIRST,1,
		[Define if packet count must precede host])
fi

if test "x$ac_cv_ping_has_timeout" != "xno"
then
	AC_DEFINE(PING_HAS_TIMEOUT,1,
		[Define if ping has its own timeout option that should be set])
fi

AC_ARG_WITH(ping6_command,
	ACX_HELP_STRING([--with-ping6-command=SYNTAX],
		[sets syntax for ICMPv6 ping]),
	with_ping6_command=$withval,)

if test x"$with_ipv6" != xno ; then
AC_MSG_CHECKING(for ICMPv6 ping syntax)
ac_cv_ping6_packets_first=no
if test -n "$with_ping6_command"
then
	AC_MSG_RESULT([(command-line) $with_ping6_command])
	if test -n "$ac_cv_ping6_packets_first"
	then
		ac_cv_ping6_packets_first=yes
	fi

elif test "x$PATH_TO_PING6" != "x"; then
	if [[ "z$ac_cv_uname_s" = "zUnixWare" ]] && \
		$PATH_TO_PING6 -n -s ::1 56 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
        	with_ping6_command="$PATH_TO_PING6 -n -U -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -U -w 10 -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -U -w %d -c %d %s"
		ac_cv_ping6_packets_first=yes
		ac_cv_ping_has_timeout=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -U -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
        	with_ping6_command="$PATH_TO_PING6 -n -U -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n ::1 -c 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n %s -c %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 ::1 -n 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 %s -n %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -s ::1 56 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -s %s 56 %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -h ::1 -s 56 -c 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -h %s -s 56 -c %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING6 -n -s 56 -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -s 56 -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping_command])

	elif $PATH_TO_PING6 -n -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING6 -n -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	fi

elif test "x$PATH_TO_PING" != "x"; then
	if [[ "z$ac_cv_uname_s" = "zUnixWare" ]] && \
		$PATH_TO_PING -A inet6 -n -s ::1 56 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
        	with_ping6_command="$PATH_TO_PING -A inet6 -n -U -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n -U -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
        	with_ping6_command="$PATH_TO_PING -A inet6 -n -U -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n ::1 -c 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n %s -c %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 ::1 -n 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 %s -n %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n -s ::1 56 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n -s %s 56 %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n -h ::1 -s 56 -c 1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n -h %s -s 56 -c %d"
		AC_MSG_RESULT([$with_ping6_command])

	elif $PATH_TO_PING -A inet6 -n -s 56 -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n -s 56 -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping_command])

	elif $PATH_TO_PING -A inet6 -n -c 1 ::1 2>/dev/null | \
		egrep -i "^round-trip|^rtt" >/dev/null
	then
		with_ping6_command="$PATH_TO_PING -A inet6 -n -c %d %s"
		ac_cv_ping6_packets_first=yes
		AC_MSG_RESULT([$with_ping6_command])

	fi

fi

if test "x$with_ping6_command" != "x"; then
	AC_DEFINE_UNQUOTED(PING6_COMMAND,"$with_ping6_command",
		[path and args for ICMPv6 ping command])
else
	AC_MSG_RESULT([none])
fi

if test "x$ac_cv_ping6_packets_first" != "xno"; then
	AC_DEFINE(PING6_PACKETS_FIRST,1,
		[Define if packet count must precede host])
fi
fi


AC_ARG_WITH(nslookup_command,
            ACX_HELP_STRING([--with-nslookup-command=PATH],
                            [sets path to nslookup executable]),
            ac_cv_nslookup_command=$withval)
if test -n "$ac_cv_nslookup_command"; then
	AC_MSG_NOTICE([Using specific nslookup at $ac_cv_nslookup_command])
else
	AC_PATH_PROG(PATH_TO_NSLOOKUP,nslookup)
	if test -n "$PATH_TO_NSLOOKUP"
	then
		AC_MSG_CHECKING(for nslookup syntax)
		if $PATH_TO_NSLOOKUP -sil 127.0.0.1 2>&1 | grep ["Invalid option: sil"] >/dev/null
		then
			ac_cv_nslookup_command="$PATH_TO_NSLOOKUP"
			AC_MSG_RESULT([$ac_cv_nslookup_command])

		else
			ac_cv_nslookup_command="$PATH_TO_NSLOOKUP -sil"
			AC_MSG_RESULT([$ac_cv_nslookup_command])

		fi
	else
		AC_MSG_WARN([nslookup command not found])
	fi
fi

if test -n "$ac_cv_nslookup_command"; then
	EXTRAS="$EXTRAS check_dns"
	AC_DEFINE_UNQUOTED(NSLOOKUP_COMMAND,"$ac_cv_nslookup_command", [path and args for nslookup])
fi

AC_PATH_PROG(PATH_TO_UPTIME,uptime)
AC_ARG_WITH(uptime_command,
            ACX_HELP_STRING([--with-uptime-command=PATH],
                            [sets path to uptime]), PATH_TO_UPTIME=$withval)
AC_DEFINE_UNQUOTED(PATH_TO_UPTIME,"$PATH_TO_UPTIME",[path to uptime binary])

AC_PATH_PROG(PATH_TO_RPCINFO,rpcinfo)
AC_ARG_WITH(rpcinfo_command,
            ACX_HELP_STRING([--with-rpcinfo-command=PATH],
                            [sets path to rpcinfo]), PATH_TO_RPCINFO=$withval)
AC_DEFINE_UNQUOTED(PATH_TO_RPCINFO,"$PATH_TO_RPCINFO",[path to rpcinfo binary])

AC_PATH_PROG(PATH_TO_LMSTAT,lmstat)
if test -x "$PATH_TO_LMSTAT"
then
	AC_DEFINE_UNQUOTED(PATH_TO_LMSTAT,"$PATH_TO_LMSTAT",[path to lmstat])
else
	AC_MSG_WARN([Get lmstat from Globetrotter Software to monitor flexlm licenses])
fi

AC_PATH_PROG(PATH_TO_SMBCLIENT,smbclient)
AC_ARG_WITH(smbclient_command,
            ACX_HELP_STRING([--with-smbclient-command=PATH],
                            [sets path to smbclient]), 
            PATH_TO_SMBCLIENT=$withval)
if test -n "$PATH_TO_SMBCLIENT"
then
	AC_DEFINE_UNQUOTED(PATH_TO_SMBCLIENT,"$PATH_TO_SMBCLIENT",[path to smbclient binary])
else
	AC_MSG_WARN([Get smbclient from Samba.org to monitor SMB shares])
fi


AC_PATH_PROG(PATH_TO_WHO,who)

if [$PATH_TO_WHO -q 2>/dev/null | egrep -i "^# users=[0-9]+$" >/dev/null]
then
	ac_cv_path_to_who="$PATH_TO_WHO -q"
else
	ac_cv_path_to_who="$PATH_TO_WHO"
fi

AC_DEFINE_UNQUOTED(WHO_COMMAND,"$ac_cv_path_to_who",
	[path and arguments for invoking 'who'])

AC_PATH_PROG(PATH_TO_SNMPGET,snmpget)
AC_ARG_WITH(snmpget_command,
            ACX_HELP_STRING([--with-snmpget-command=PATH],
                            [Path to snmpget command]),
            PATH_TO_SNMPGET=$withval)
if test -n "$PATH_TO_SNMPGET"
then
	AC_DEFINE_UNQUOTED(PATH_TO_SNMPGET,"$PATH_TO_SNMPGET",[path to snmpget binary])
	EXTRAS="$EXTRAS check_hpjd check_snmp"
else
	AC_MSG_WARN([Get snmpget from http://net-snmp.sourceforge.net to make check_hpjd and check_snmp plugins])
fi

AC_PATH_PROG(PATH_TO_SNMPGETNEXT,snmpgetnext)
AC_ARG_WITH(snmpgetnext_command,
            ACX_HELP_STRING([--with-snmpgetnext-command=PATH],
                            [Path to snmpgetnext command]),
            PATH_TO_SNMPGETNEXT=$withval)
if test -n "$PATH_TO_SNMPGETNEXT"
then
	AC_DEFINE_UNQUOTED(PATH_TO_SNMPGETNEXT,"$PATH_TO_SNMPGETNEXT",[path to snmpgetnext binary])
fi

if ( $PERL -M"Net::SNMP 3.6" -e 'exit' 2>/dev/null  )
then
	AC_MSG_CHECKING(for Net::SNMP perl module)
	AC_MSG_RESULT([found])
else
	AC_MSG_WARN([Tried $PERL - install Net::SNMP perl module if you want to use the perl snmp plugins])
fi

AC_PATH_PROG(PATH_TO_QUAKESTAT,quakestat)
AC_PATH_PROG(PATH_TO_QSTAT,qstat)
AC_ARG_WITH(qstat_command,
            ACX_HELP_STRING([--with-qstat-command=PATH], 
                            [Path to qstat command]), PATH_TO_QSTAT=$withval)

if test -x "$PATH_TO_QUAKESTAT"
then
	ac_cv_path_to_qstat="$PATH_TO_QUAKESTAT"
	EXTRAS="$EXTRAS check_game"

elif test -n "$PATH_TO_QSTAT"
then
	ac_cv_path_to_qstat="$PATH_TO_QSTAT"
	EXTRAS="$EXTRAS check_game"
else
	AC_MSG_WARN([Get qstat from http://www.activesw.com/people/steve/qstat.html in order to make check_game plugin])
fi

if test $ac_cv_path_to_qstat 
then
	AC_DEFINE_UNQUOTED(PATH_TO_QSTAT,"$ac_cv_path_to_qstat",
		[path to qstat/quakestat])
fi

AC_PATH_PROG(PATH_TO_FPING,fping)
AC_ARG_WITH(fping_command,
            ACX_HELP_STRING([--with-fping-command=PATH],
                            [Path to fping command]), PATH_TO_FPING=$withval)
if test -n "$PATH_TO_FPING"
then
	AC_DEFINE_UNQUOTED(PATH_TO_FPING,"$PATH_TO_FPING",[path to fping])
	EXTRAS="$EXTRAS check_fping"
else
	AC_MSG_WARN([Get fping from http://www.fping.com in order to make check_fping plugin])
fi

AC_PATH_PROG(PATH_TO_SSH,ssh)
AC_ARG_WITH(ssh_command,
            ACX_HELP_STRING([--with-ssh-command=PATH],
                            [sets path for ssh]), PATH_TO_SSH=$withval)
if test -n "$PATH_TO_SSH"
then
	AC_DEFINE_UNQUOTED(SSH_COMMAND,"$PATH_TO_SSH",[path to ssh binary])
	EXTRAS="$EXTRAS check_by_ssh"
else
	AC_MSG_WARN([Get ssh in order to make check_by_ssh plugin])
fi


AC_PATH_PROG(PATH_TO_MAILQ,mailq)
AC_ARG_WITH(mailq_command,
            ACX_HELP_STRING([--with-mailq-command=PATH],
                            [sets path to mailq]), PATH_TO_MAILQ=$withval)
if test -n "$PATH_TO_MAILQ"
then
	AC_DEFINE_UNQUOTED(PATH_TO_MAILQ,"$PATH_TO_MAILQ",[path to mailq])
else
	AC_MSG_WARN([Could not find mailq or eqivalent])
fi

AC_PATH_PROG(PATH_TO_QMAIL_QSTAT,qmail-qstat)
if test -x "$PATH_TO_QMAIL_QSTAT"
then
	AC_DEFINE_UNQUOTED(PATH_TO_MAILQ,"$PATH_TO_QMAIL_QSTAT",[path to qmail-qstat])
else
	AC_MSG_WARN([Could not find qmail-qstat or eqivalent])
fi

dnl SWAP info required is amount allocated/available and amount free
dnl The plugin works through all the swap devices and adds up the total swap
dnl available.
AC_PATH_PROG(PATH_TO_SWAP,swap)
if (test -n "$PATH_TO_SWAP")
then
AC_MSG_CHECKING([for $PATH_TO_SWAP format])
if [$PATH_TO_SWAP -l 2>&1 >/dev/null]
then
	ac_cv_have_swap=yes
	ac_cv_swap_command="$PATH_TO_SWAP -l"
	if [$PATH_TO_SWAP -l 2>/dev/null | \
		egrep -i "^lswap +path +pri +swaplo +blocks +free +maxswap" \
		>/dev/null]
	then
		ac_cv_swap_format=[" %*d %*s %*d,%*d %*d %*d %f %f"]
		ac_cv_swap_conv=2048
		AC_MSG_RESULT([using IRIX format swap])

	elif [$PATH_TO_SWAP -l 2>/dev/null | egrep -i "^path +dev +swaplo +blocks +free" >/dev/null]
	then
		ac_cv_swap_format=["%*s %*[0-9,-] %*d %f %f"]
		ac_cv_swap_conv=2048
		AC_MSG_RESULT([using Unixware format swap])
	else
		dnl if we don't know what format swap's output is
		dnl we might as well pretend we didn't see it
		ac_cv_have_swap=""
		ac_cv_swap_command=""
	fi
fi
dnl end if for PATH_TO_SWAP
fi

AC_PATH_PROG(PATH_TO_SWAPINFO,swapinfo)
if (test -n "$PATH_TO_SWAPINFO")
then
AC_MSG_CHECKING([for $PATH_TO_SWAPINFO format])
if [$PATH_TO_SWAPINFO -k 2>&1 | egrep -i "^Device" >/dev/null]
then
	ac_cv_have_swap=yes
	ac_cv_swap_command="$PATH_TO_SWAPINFO -k"

	if [$PATH_TO_SWAPINFO -k 2>/dev/null | egrep -i "^Device +1K-blocks +Used +Avail" >/dev/null]
	then
		ac_cv_swap_format=["%*s %f %*d %f"]
		ac_cv_swap_conv=1024
		AC_MSG_RESULT([using FreeBSD format swapinfo])
	fi

elif [$PATH_TO_SWAPINFO -dfM 2>/dev/null | egrep -i "^TYPE +AVAIL +USED +FREE" >/dev/null]
then
	ac_cv_have_swap=yes
	ac_cv_swap_command="$PATH_TO_SWAPINFO -dfM",
	ac_cv_swap_format=["%*s %f %*d %f"]
	ac_cv_swap_conv=1024
	AC_MSG_RESULT([using HP-UX format swapinfo])
fi
dnl end if for PATH_TO_SWAPINFO
fi

AC_PATH_PROG(PATH_TO_LSPS,lsps)
if (test -n "$PATH_TO_LSPS")
then
AC_MSG_CHECKING([for $PATH_TO_LSPS format])
if [$PATH_TO_LSPS -a 2>/dev/null | egrep -i "^Page Space" > /dev/null]
then
	ac_cv_have_swap=yes
	ac_cv_swap_command="$PATH_TO_LSPS -a"
	ac_cv_swap_format=["%*s %*s %*s %f%*s %f %*s"]
	ac_cv_swap_conv=1
	AC_MSG_RESULT([using AIX lsps])
fi
dnl end if for PATH_TO_SWAPINFO
fi

dnl
dnl test for swapctl system call, both the 2-arg and 3-arg variants
dnl fwict, the 2-arg is an SVR4 standard, whereas the 3-arg is shared
dnl in the various BSD's
dnl

AC_CHECK_HEADERS([sys/stat.h sys/param.h])
AC_CHECK_HEADERS([sys/swap.h], [], [], [
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
])
AC_CHECK_DECLS([swapctl],,,[
               #include <unistd.h>
               #include <sys/types.h>
	       #include <sys/param.h>
               #include <sys/stat.h>
               #include <sys/swap.h>
               ])
AC_CHECK_TYPES([swaptbl_t, swapent_t],,,[
               #include <sys/types.h>
	       #include <sys/param.h>
               #include <sys/stat.h>
               #include <sys/swap.h>
               ])
AC_CHECK_MEMBERS([struct swapent.se_nblks],,,[
               #include <unistd.h>
               #include <sys/types.h>
	       #include <sys/param.h>
               #include <sys/stat.h>
               #include <sys/swap.h>
               ])

if test "$ac_cv_have_decl_swapctl" = "yes"; 
then
	EXTRAS="$EXTRAS check_swap"
	AC_MSG_CHECKING([for 2-arg (SVR4) swapctl])
	if test "$ac_cv_type_swaptbl_t" = "yes" -a \
	        "$ac_cv_type_swapent_t" = "yes"; 
	then
		AC_MSG_RESULT([yes])
		ac_cv_check_swap_swapctl_svr4="1";
		AC_DEFINE([CHECK_SWAP_SWAPCTL_SVR4],1,
		          [Define if 2-argument SVR4 swapctl exists])
	else
		AC_MSG_RESULT([no])
		AC_MSG_CHECKING([for 3-arg (*BSD) swapctl])
		if test "$ac_cv_member_struct_swapent_se_nblks" = "yes"; 
		then
			AC_MSG_RESULT([yes])
			AC_DEFINE([CHECK_SWAP_SWAPCTL_BSD],1,
			          [Define if 3-argument BSD swapctl exists])
		else
			AC_MSG_RESULT([no])
		fi
	fi
	AC_MSG_CHECKING([for whether swapctl uses blocks or pages])
	if test "$ac_cv_check_swap_swapctl_svr4" = "1";
	then
		dnl
		dnl the SVR4 spec returns values in pages
		dnl
		AC_MSG_RESULT([page])
		AC_CHECK_DECLS([sysconf])
		AC_MSG_CHECKING([for system page size])
		if test "$ac_cv_have_decl_sysconf" = "yes";
		then
			AC_MSG_RESULT([determined by sysconf(3)])
			ac_cv_swap_conv="(1048576/sysconf(_SC_PAGESIZE))"
		else
			AC_MSG_WARN([don't know. guessing 4096k])
			ac_cv_swap_conv=256
		fi
	else
		dnl
		dnl the BSD spec returns values in blocks
		dnl
		AC_MSG_RESULT([blocks (assuming 512b)])
		ac_cv_swap_conv=2048
	fi
	AC_DEFINE_UNQUOTED(SWAP_CONVERSION,$ac_cv_swap_conv,
		[Conversion factor to MB])
fi
dnl
dnl end tests for the swapctl system calls
dnl


if test "x$ac_cv_have_swap" != "x" 
then
	AC_DEFINE(HAVE_SWAP,1,[Define if swap/swapinfo command is found])
	EXTRAS="$EXTRAS check_swap"
fi
if test "x$ac_cv_swap_command" != "x" 
then
	AC_DEFINE_UNQUOTED(SWAP_COMMAND,"$ac_cv_swap_command",
		[Path to swap/swapinfo binary, with any args])
	AC_DEFINE_UNQUOTED(SWAP_FORMAT,"$ac_cv_swap_format",
		[Format string for parsing swap output])
	AC_DEFINE_UNQUOTED(SWAP_CONVERSION,$ac_cv_swap_conv,
		[Conversion factor to MB])
fi

AC_ARG_WITH(proc-meminfo,
            ACX_HELP_STRING([--with-proc-meminfo=PATH],
                            [path to /proc/meminfo or equivalent]),
                            ac_cv_proc_meminfo=$withval)
dnl dunno why this does not work below - use hack (kbd)
dnl fine on linux, broken on solaris
dnl if /bin/test -e "/proc/meminfo"
AC_MSG_CHECKING([for /proc/meminfo])
if test -n "$ac_cv_proc_meminfo"; then
	AC_MSG_RESULT([(command line) $ac_cv_proc_meminfo])
elif [cat /proc/meminfo > /dev/null 2>&1]; then
	AC_MSG_RESULT([found /proc/meminfo])
	ac_cv_proc_meminfo="/proc/meminfo"
else
	AC_MSG_RESULT([no])
fi

if test -n "$ac_cv_proc_meminfo"; then
	AC_DEFINE(HAVE_PROC_MEMINFO,1,[Define if we have /proc/meminfo])
	AC_DEFINE_UNQUOTED(PROC_MEMINFO,"$ac_cv_proc_meminfo",[path to /proc/meminfo if name changes])
	EXTRAS="$EXTRAS check_swap"
fi

AC_PATH_PROG(PATH_TO_DIG,dig)
AC_ARG_WITH(dig_command,
            ACX_HELP_STRING([--with-dig-command=PATH],
                            [Path to dig command]), PATH_TO_DIG=$withval)
if test -n "$PATH_TO_DIG"; then
	EXTRAS="$EXTRAS check_dig"
	AC_DEFINE_UNQUOTED(PATH_TO_DIG,"$PATH_TO_DIG",[Path to dig command, if present])
fi

AC_PATH_PROG(PATH_TO_APTGET,apt-get)
AC_ARG_WITH(apt-get_command,
            ACX_HELP_STRING([--with-apt-get-command=PATH],
                            [Path to apt-get command]), 
                            with_apt_get_command=$withval,
                            with_apt_get_command=$PATH_TO_APTGET)
AC_DEFINE_UNQUOTED(PATH_TO_APTGET,"$PATH_TO_APTGET",[Path to apt-get command, if present])
if test -n "$PATH_TO_APTGET" ; then
	EXTRAS="$EXTRAS check_apt"
fi


if test -f plugins/check_nt.c ; then
  EXTRAS="$EXTRAS check_nt"
elif test -f ../plugins/check_nt.c ; then
  EXTRAS="$EXTRAS check_nt"
fi

AC_MSG_CHECKING(for va_list)
AC_TRY_COMPILE([#ifdef __STDC__
		#include <stdio.h>
		#include <stdlib.h>
		#include <stdarg.h>
		#else
		#include <sys/types.h>
		#include <stdio.h>
		#include <varargs.h>
		#endif],
		[va_list args;],
		[AC_MSG_RESULT(yes)],
		[NEED_VA_LIST=-DNEED_VA_LIST 
		 AC_SUBST(NEED_VA_LIST) 
		 AC_MSG_RESULT(no)])

case $host in
	*bsd*)
		AC_DEFINE(__bsd__,1,[bsd specific code in check_dhcp.c])
	;;
	*linux*)
		AC_DEFINE(__linux__,1,[sun specific code in check_dhcp.c])
	;;
	*sun* | solaris*)
		AC_DEFINE(__sun__,1,[sun specific code in check_dhcp.c])
	;;
	*hpux*)  
		AC_DEFINE(__hpux__,1,[hpux specific code in check_dhcp.c])
	;;
esac

AC_SUBST(EXTRAS)
AC_SUBST(EXTRAS_ROOT)
AC_SUBST(EXTRA_NETOBJS)
AC_SUBST(DEPLIBS)

AM_GNU_GETTEXT([external], [need-ngettext])
AM_GNU_GETTEXT_VERSION(0.13.1)

dnl Check for Redhat spopen problem
dnl Wierd problem where ECHILD is returned from a wait call in error
dnl Only appears to affect nslookup and dig calls. Only affects redhat around
dnl 2.6.9-11 (okay in 2.6.9-5). Redhat investigating root cause
dnl We patch plugins/popen.c
dnl Need to add smp because uname different on those
dnl Can force patch to be applied with --enable-redhat-pthread-workaround
AC_ARG_ENABLE(redhat-pthread-workaround, 
	AC_HELP_STRING([--enable-redhat-pthread-workaround], 
		[force Redhat patch to be applied (default: test system)]),
	[ac_cv_enable_redhat_pthread_workaround=$enableval],
	[ac_cv_enable_redhat_pthread_workaround=test])
if test "$ac_cv_enable_redhat_pthread_workaround" = "test" ; then
	if echo $ac_cv_uname_r | egrep "\.EL(smp)?$" >/dev/null 2>&1 ; then
		AC_MSG_CHECKING(for redhat spopen problem)
		( cd config_test && make && make test ) > /dev/null 2>&1
		if test $? -eq 0 ; then
			AC_MSG_RESULT(okay)
		else
			AC_MSG_RESULT(error)
			AC_DEFINE(REDHAT_SPOPEN_ERROR, 1, [Workaround on redhat in spopen])
		fi
	fi
elif test "$ac_cv_enable_redhat_pthread_workaround" = "yes" ; then
	AC_DEFINE(REDHAT_SPOPEN_ERROR, 1, [Forced workaround on redhat in spopen])
fi

dnl External libraries - see ACKNOWLEDGEMENTS
np_COREUTILS
np_CURL

dnl Some helpful common compile errors checked here
if test "$ac_cv_uname_s" = 'SunOS' -a "$ac_cv_prog_ac_ct_AR" = 'false' ; then
	AC_MSG_ERROR(No ar found for Solaris - is /usr/ccs/bin in PATH?)
fi

AC_OUTPUT(
  Makefile 
  lib/Makefile 
  m4/Makefile 
  plugins/Makefile 
  lib/tests/Makefile
  plugins-root/Makefile
  plugins-scripts/Makefile 
  plugins-scripts/subst 
  plugins-scripts/utils.pm 
  plugins-scripts/utils.sh 
  command.cfg 
  test.pl 
  pkg/solaris/pkginfo 
  po/Makefile.in 
)


dnl the ones below that are commented out need to be cleaned up 
dnl in the configure code above to use with_foo instead of ac_cv_foo
dnl if we want them to show up here.  it'd also make the code cleaner.
dnl i'll get to that on another rainy day :) -sf
ACX_FEATURE([with],[apt-get-command])
dnl ACX_FEATURE([with],[dig-command])
dnl ACX_FEATURE([with],[fping-command])
dnl ACX_FEATURE([with],[mailq-command])
dnl ACX_FEATURE([with],[nslookup-command])
ACX_FEATURE([with],[ping6-command])
ACX_FEATURE([with],[ping-command])
dnl ACX_FEATURE([with],[qstat-command])
dnl ACX_FEATURE([with],[rpcinfo-command])
dnl ACX_FEATURE([with],[smbclient-command])
dnl ACX_FEATURE([with],[snmpget-command])
dnl ACX_FEATURE([with],[snmpgetnext-command])
dnl ACX_FEATURE([with],[ssh-command])
dnl ACX_FEATURE([with],[uptime-command])

dnl ACX_FEATURE([with],[proc-loadavg])
dnl ACX_FEATURE([with],[proc-meminfo])
dnl ACX_FEATURE([with],[ps-command])
dnl ACX_FEATURE([with],[ps-format])
dnl ACX_FEATURE([with],[ps-cols])
dnl ACX_FEATURE([with],[ps-varlist])

ACX_FEATURE([with],[lwres])
ACX_FEATURE([with],[ipv6])
ACX_FEATURE([with],[mysql])
ACX_FEATURE([with],[openssl])
ACX_FEATURE([with],[gnutls])
ACX_FEATURE([enable],[emulate-getaddrinfo])
ACX_FEATURE([with],[perl])
ACX_FEATURE([with],[cgiurl])
ACX_FEATURE([with],[trusted-path])