Synnefo » snf-ganeti

# Configure script for Ganeti

m4_define([gnt_version_major], [2])

m4_define([gnt_version_minor], [6])

m4_define([gnt_version_revision], [0])

m4_define([gnt_version_suffix], [])

m4_define([gnt_version_full],

          m4_format([%d.%d.%d%s],

                    gnt_version_major, gnt_version_minor,

                    gnt_version_revision, gnt_version_suffix))

AC_PREREQ(2.59)

AC_INIT(ganeti, gnt_version_full, ganeti@googlegroups.com)

AC_CONFIG_AUX_DIR(autotools)

AC_CONFIG_SRCDIR(configure)

AM_INIT_AUTOMAKE([1.9 foreign tar-ustar -Wall -Wno-portability])

AC_SUBST([VERSION_MAJOR], gnt_version_major)

AC_SUBST([VERSION_MINOR], gnt_version_minor)

AC_SUBST([VERSION_REVISION], gnt_version_revision)

AC_SUBST([VERSION_SUFFIX], gnt_version_suffix)

AC_SUBST([VERSION_FULL], gnt_version_full)

# --with-ssh-initscript=...

AC_ARG_WITH([ssh-initscript],

  [AS_HELP_STRING([--with-ssh-initscript=SCRIPT],

    [SSH init script to use (default is /etc/init.d/ssh)]

  )],

  [ssh_initd_script="$withval"],

  [ssh_initd_script="/etc/init.d/ssh"])

AC_SUBST(SSH_INITD_SCRIPT, $ssh_initd_script)

# --with-export-dir=...

AC_ARG_WITH([export-dir],

  [AS_HELP_STRING([--with-export-dir=DIR],

    [directory to use by default for instance image]

    [ exports (default is /srv/ganeti/export)]

  )],

  [export_dir="$withval"],

  [export_dir="/srv/ganeti/export"])

AC_SUBST(EXPORT_DIR, $export_dir)

# --with-ssh-config-dir=...

AC_ARG_WITH([ssh-config-dir],

  [AS_HELP_STRING([--with-ssh-config-dir=DIR],

    [ directory with ssh host keys ]

    [ (default is /etc/ssh)]

  )],

  [ssh_config_dir="$withval"],

  [ssh_config_dir="/etc/ssh"])

AC_SUBST(SSH_CONFIG_DIR, $ssh_config_dir)

# --with-os-search-path=...

# do a bit of black sed magic to for quoting of the strings in the list

AC_ARG_WITH([os-search-path],

  [AS_HELP_STRING([--with-os-search-path=LIST],

    [comma separated list of directories to]

    [ search for OS images (default is /srv/ganeti/os)]

  )],

  [os_search_path=`echo -n "$withval" | sed -e "s/\([[^,]]*\)/'\1'/g"`],

  [os_search_path="'/srv/ganeti/os'"])

AC_SUBST(OS_SEARCH_PATH, $os_search_path)

# --with-iallocator-search-path=...

# do a bit of black sed magic to for quoting of the strings in the list

AC_ARG_WITH([iallocator-search-path],

  [AS_HELP_STRING([--with-iallocator-search-path=LIST],

    [comma separated list of directories to]

    [ search for instance allocators (default is $libdir/ganeti/iallocators)]

  )],

  [iallocator_search_path=`echo -n "$withval" | sed -e "s/\([[^,]]*\)/'\1'/g"`],

  [iallocator_search_path="'$libdir/$PACKAGE_NAME/iallocators'"])

AC_SUBST(IALLOCATOR_SEARCH_PATH, $iallocator_search_path)

# --with-xen-bootloader=...

AC_ARG_WITH([xen-bootloader],

  [AS_HELP_STRING([--with-xen-bootloader=PATH],

    [bootloader for Xen hypervisor (default is empty)]

  )],

  [xen_bootloader="$withval"],

  [xen_bootloader=])

AC_SUBST(XEN_BOOTLOADER, $xen_bootloader)

# --with-xen-kernel=...

AC_ARG_WITH([xen-kernel],

  [AS_HELP_STRING([--with-xen-kernel=PATH],

    [DomU kernel image for Xen hypervisor (default is /boot/vmlinuz-3-xenU)]

  )],

  [xen_kernel="$withval"],

  [xen_kernel="/boot/vmlinuz-3-xenU"])

AC_SUBST(XEN_KERNEL, $xen_kernel)

# --with-xen-initrd=...

AC_ARG_WITH([xen-initrd],

  [AS_HELP_STRING([--with-xen-initrd=PATH],

    [DomU initrd image for Xen hypervisor (default is /boot/initrd-3-xenU)]

  )],

  [xen_initrd="$withval"],

  [xen_initrd="/boot/initrd-3-xenU"])

AC_SUBST(XEN_INITRD, $xen_initrd)

# --with-xen-cmd=...

AC_ARG_WITH([xen-cmd],

  [AS_HELP_STRING([--with-xen-cmd=CMD],

    [Sets the xen cli interface command (default is xm)]

  )],

  [xen_cmd="$withval"],

  [xen_cmd="xm"])

AC_SUBST(XEN_CMD, $xen_cmd)

if ! test "$XEN_CMD" = xl -o "$XEN_CMD" = xm; then

  AC_MSG_ERROR([Unsupported xen command specified])

fi

# --with-kvm-kernel=...

AC_ARG_WITH([kvm-kernel],

  [AS_HELP_STRING([--with-kvm-kernel=PATH],

    [Guest kernel image for KVM hypervisor (default is /boot/vmlinuz-3-kvmU)]

  )],

  [kvm_kernel="$withval"],

  [kvm_kernel="/boot/vmlinuz-3-kvmU"])

AC_SUBST(KVM_KERNEL, $kvm_kernel)

# --with-file-storage-dir=...

AC_ARG_WITH([file-storage-dir],

  [AS_HELP_STRING([--with-file-storage-dir=PATH],

    [directory to store files for file-based backend]

    [ (default is /srv/ganeti/file-storage)]

  )],

  [[file_storage_dir="$withval";

    if test "$withval" != no; then

      enable_file_storage=True

    else

      enable_file_storage=False

    fi

  ]],

  [[file_storage_dir="/srv/ganeti/file-storage";

    enable_file_storage="True"]])

AC_SUBST(FILE_STORAGE_DIR, $file_storage_dir)

AC_SUBST(ENABLE_FILE_STORAGE, $enable_file_storage)

# --with-shared-file-storage-dir=...

AC_ARG_WITH([shared-file-storage-dir],

  [AS_HELP_STRING([--with-shared-file-storage-dir=PATH],

    [directory to store files for shared file-based backend]

    [ (default is /srv/ganeti/shared-file-storage)]

  )],

  [[shared_file_storage_dir="$withval";

    if test "$withval" != no; then

      enable_shared_file_storage=True

    else

      enable_shared_file_storage=False

    fi

  ]],

  [[shared_file_storage_dir="/srv/ganeti/shared-file-storage";

    enable_shared_file_storage="True"]])

AC_SUBST(SHARED_FILE_STORAGE_DIR, $shared_file_storage_dir)

AC_SUBST(ENABLE_SHARED_FILE_STORAGE, $enable_shared_file_storage)

# --with-kvm-path=...

AC_ARG_WITH([kvm-path],

  [AS_HELP_STRING([--with-kvm-path=PATH],

    [absolute path to the kvm binary]

    [ (default is /usr/bin/kvm)]

  )],

  [kvm_path="$withval"],

  [kvm_path="/usr/bin/kvm"])

AC_SUBST(KVM_PATH, $kvm_path)

# --with-lvm-stripecount=...

AC_ARG_WITH([lvm-stripecount],

  [AS_HELP_STRING([--with-lvm-stripecount=NUM],

    [the default number of stripes to use for LVM volumes]

    [ (default is 1)]

  )],

  [lvm_stripecount="$withval"],

  [lvm_stripecount="1"])

AC_SUBST(LVM_STRIPECOUNT, $lvm_stripecount)

# --with-user-prefix=...

AC_ARG_WITH([user-prefix],

  [AS_HELP_STRING([--with-user-prefix=PREFIX],

    [prefix for daemon users]

    [ (default is to run all daemons as root)]

  )],

  [user_masterd="${withval}masterd";

   user_rapi="${withval}rapi";

   user_confd="${withval}confd";

   user_noded="root"],

  [user_masterd="root";

   user_rapi="root";

   user_confd="root";

   user_noded="root"])

AC_SUBST(MASTERD_USER, $user_masterd)

AC_SUBST(RAPI_USER, $user_rapi)

AC_SUBST(CONFD_USER, $user_confd)

AC_SUBST(NODED_USER, $user_noded)

# --with-group-prefix=...

AC_ARG_WITH([group-prefix],

  [AS_HELP_STRING([--with-group-prefix=PREFIX],

    [prefix for daemon POSIX groups]

    [ (default is to run all daemons under group root)]

  )],

  [group_rapi="${withval}rapi";

   group_admin="${withval}admin";

   group_confd="${withval}confd";

   group_masterd="${withval}masterd";

   group_noded="root";

   group_daemons="${withval}daemons";],

  [group_rapi="root";

   group_admin="root";

   group_confd="root";

   group_masterd="root";

   group_noded="root";

   group_daemons="root"])

AC_SUBST(RAPI_GROUP, $group_rapi)

AC_SUBST(ADMIN_GROUP, $group_admin)

AC_SUBST(CONFD_GROUP, $group_confd)

AC_SUBST(MASTERD_GROUP, $group_masterd)

AC_SUBST(NODED_GROUP, $group_noded)

AC_SUBST(DAEMONS_GROUP, $group_daemons)

# Print the config to the user

AC_MSG_NOTICE([Running ganeti-masterd as $group_masterd:$group_masterd])

AC_MSG_NOTICE([Running ganeti-rapi as $user_rapi:$group_rapi])

AC_MSG_NOTICE([Running ganeti-confd as $user_confd:$group_confd])

AC_MSG_NOTICE([Group for daemons is $group_daemons])

AC_MSG_NOTICE([Group for clients is $group_admin])

# --enable-drbd-barriers

AC_ARG_ENABLE([drbd-barriers],

  [AS_HELP_STRING([--enable-drbd-barriers],

    [enable by default the DRBD barriers functionality (>= 8.0.12) (default: enabled)])],

  [[if test "$enableval" != no; then

      DRBD_BARRIERS=n

      DRBD_NO_META_FLUSH=False

    else

      DRBD_BARRIERS=bf

      DRBD_NO_META_FLUSH=True

    fi

  ]],

  [DRBD_BARRIERS=n

   DRBD_NO_META_FLUSH=False

  ])

AC_SUBST(DRBD_BARRIERS, $DRBD_BARRIERS)

AC_SUBST(DRBD_NO_META_FLUSH, $DRBD_NO_META_FLUSH)

# --enable-syslog[=no/yes/only]

AC_ARG_ENABLE([syslog],

  [AS_HELP_STRING([--enable-syslog],

    [enable use of syslog (default: disabled), one of no/yes/only])],

  [[case "$enableval" in

      no)

        SYSLOG=no

        ;;

      yes)

        SYSLOG=yes

        ;;

      only)

        SYSLOG=only

        ;;

      *)

        SYSLOG=

        ;;

    esac

  ]],

  [SYSLOG=no])

if test -z "$SYSLOG"

then

  AC_MSG_ERROR([invalid value for syslog, choose one of no/yes/only])

fi

AC_SUBST(SYSLOG_USAGE, $SYSLOG)

# --enable-htools

HTOOLS=

AC_ARG_ENABLE([htools],

        [AS_HELP_STRING([--enable-htools],

        [enable use of htools (needs GHC and libraries, default: check)])],

        [],

        [enable_htools=check])

# --enable-htools-rapi

HTOOLS_RAPI=

AC_ARG_ENABLE([htools-rapi],

        [AS_HELP_STRING([--enable-htools-rapi],

        [enable use of RAPI in htools (needs curl, default: no)])],

        [],

        [enable_htools_rapi=no])

# --enable-confd

ENABLE_CONFD=

AC_ARG_ENABLE([confd],

  [AS_HELP_STRING([--enable-confd],

  [enable the ganeti-confd daemon (default: python, options haskell/python/no)])],

  [[case "$enableval" in

      no)

        enable_confd=False

        py_confd=False

        hs_confd=False

        ;;

      yes|python)

        enable_confd=True

        py_confd=True

        hs_confd=False

        ;;

      haskell)

        enable_confd=True

        py_confd=False

        hs_confd=True

        ;;

      *)

        echo "Invalid value for enable-confd '$enableval'"

        exit 1

        ;;

    esac

  ]],

  [enable_confd=True;py_confd=True;hs_confd=False])

AC_SUBST(ENABLE_CONFD, $enable_confd)

AC_SUBST(PY_CONFD, $py_confd)

AC_SUBST(HS_CONFD, $hs_confd)

AM_CONDITIONAL([WANT_CONFD], [test x$enable_confd = xTrue])

AM_CONDITIONAL([PY_CONFD], [test x$py_confd = xTrue])

AM_CONDITIONAL([HS_CONFD], [test x$hs_confd = xTrue])

# --enable-split-query

ENABLE_SPLIT_QUERY=

AC_ARG_ENABLE([split-query],

  [AS_HELP_STRING([--enable-split-query],

  [enable use of custom query daemon via Haskell confd])],

  [[case "$enableval" in

      no)

        enable_split_query=False

        ;;

      yes)

        enable_split_query=True

        ;;

      *)

        echo "Invalid value for enable-confd '$enableval'"

        exit 1

        ;;

    esac

  ]],

  [enable_split_query=False])

AC_SUBST(ENABLE_SPLIT_QUERY, $enable_split_query)

if test x$enable_split_query = xTrue -a x$hs_confd != xTrue; then

  AC_MSG_ERROR([Split queries require the Haskell confd])

fi

# --with-disk-separator=...

AC_ARG_WITH([disk-separator],

  [AS_HELP_STRING([--with-disk-separator=STRING],

    [Disk index separator, useful if the default of ':' is handled]

    [ specially by the hypervisor]

  )],

  [disk_separator="$withval"],

  [disk_separator=":"])

AC_SUBST(DISK_SEPARATOR, $disk_separator)

# Check common programs

AC_PROG_INSTALL

AC_PROG_LN_S

# Check for the ip command

AC_ARG_VAR(IP_PATH, [ip path])

AC_PATH_PROG(IP_PATH, [ip], [])

if test -z "$IP_PATH"

then

  AC_MSG_ERROR([ip command not found])

fi

# Check for pandoc

AC_ARG_VAR(PANDOC, [pandoc path])

AC_PATH_PROG(PANDOC, [pandoc], [])

if test -z "$PANDOC"

then

  AC_MSG_WARN([pandoc not found, man pages rebuild will not be possible])

fi

# Check for python-sphinx

AC_ARG_VAR(SPHINX, [sphinx-build path])

AC_PATH_PROG(SPHINX, [sphinx-build], [])

if test -z "$SPHINX"

then

  AC_MSG_WARN(m4_normalize([sphinx-build not found, documentation rebuild will

                            not be possible]))

fi

# Check for graphviz (dot)

AC_ARG_VAR(DOT, [dot path])

AC_PATH_PROG(DOT, [dot], [])

if test -z "$DOT"

then

  AC_MSG_WARN(m4_normalize([dot (from the graphviz suite) not found,

                            documentation rebuild not possible]))

fi

# Check for pylint

AC_ARG_VAR(PYLINT, [pylint path])

AC_PATH_PROG(PYLINT, [pylint], [])

if test -z "$PYLINT"

then

  AC_MSG_WARN([pylint not found, checking code will not be possible])

fi

# Check for pep8

AC_ARG_VAR(PEP8, [pep8 path])

AC_PATH_PROG(PEP8, [pep8], [])

if test -z "$PEP8"

then

  AC_MSG_WARN([pep8 not found, checking code will not be complete])

fi

AM_CONDITIONAL([HAS_PEP8], [test "$PEP8"])

# Check for socat

AC_ARG_VAR(SOCAT, [socat path])

AC_PATH_PROG(SOCAT, [socat], [])

if test -z "$SOCAT"

then

  AC_MSG_ERROR([socat not found])

fi

# Check for qemu-img

AC_ARG_VAR(QEMUIMG_PATH, [qemu-img path])

AC_PATH_PROG(QEMUIMG_PATH, [qemu-img], [])

if test -z "$QEMUIMG_PATH"

then

  AC_MSG_WARN([qemu-img not found, using ovfconverter will not be possible])

fi

if test "$enable_htools" != "no"; then

# Check for ghc

AC_ARG_VAR(GHC, [ghc path])

AC_PATH_PROG(GHC, [ghc], [])

if test -z "$GHC"; then

  if test "$enable_htools" != "check"; then

    AC_MSG_FAILURE([ghc not found, htools compilation will not possible])

  fi

fi

# Check for ghc-pkg

HTOOLS_MODULES=

AC_ARG_VAR(GHC_PKG, [ghc-pkg path])

AC_PATH_PROG(GHC_PKG, [ghc-pkg], [])

if test -z "$GHC_PKG"; then

  if test "$enable_htools" != "check"; then

    AC_MSG_FAILURE([ghc-pkg not found, htools compilation will not be possible])

  fi

else

  # check for modules

  AC_MSG_NOTICE([checking for required haskell modules])

  HTOOLS_NOCURL=-DNO_CURL

  if test "$enable_htools_rapi" != "no"; then

    AC_MSG_CHECKING([curl])

    GHC_PKG_CURL=$($GHC_PKG latest curl)

    if test -z "$GHC_PKG_CURL"; then

      if test "$enable_htools_rapi" = "check"; then

        AC_MSG_WARN(m4_normalize([The curl library not found, htools will be

                                  compiled without RAPI support]))

      else

        AC_MSG_FAILURE(m4_normalize([The curl library was not found, but it has

                                     been requested]))

      fi

    else

      HTOOLS_NOCURL=

    fi

    AC_MSG_RESULT($GHC_PKG_CURL)

  fi

  AC_SUBST(GHC_PKG_CURL)

  AC_SUBST(HTOOLS_NOCURL)

  AC_MSG_CHECKING([parallel])

  GHC_PKG_PARALLEL=$($GHC_PKG --simple-output list 'parallel-3.*')

  if test -n "$GHC_PKG_PARALLEL"

  then

    HTOOLS_PARALLEL3=-DPARALLEL3

  else

    GHC_PKG_PARALLEL=$($GHC_PKG --simple-output list 'parallel-2.*')

  fi

  if test -z "$GHC_PKG_PARALLEL"

  then

    GHC_PKG_PARALLEL=$($GHC_PKG --simple-output list 'parallel-1.*')

  fi

  AC_SUBST(GHC_PKG_PARALLEL)

  AC_SUBST(HTOOLS_PARALLEL3)

  AC_MSG_RESULT($GHC_PKG_PARALLEL)

  AC_MSG_CHECKING([json])

  GHC_PKG_JSON=$($GHC_PKG latest json)

  AC_MSG_RESULT($GHC_PKG_JSON)

  AC_MSG_CHECKING([network])

  GHC_PKG_NETWORK=$($GHC_PKG latest network)

  AC_MSG_RESULT($GHC_PKG_NETWORK)

  AC_MSG_CHECKING([QuickCheck 2.x])

  GHC_PKG_QUICKCHECK=$($GHC_PKG --simple-output list 'QuickCheck-2.*')

  AC_MSG_RESULT($GHC_PKG_QUICKCHECK)

  if test -z "$GHC_PKG_PARALLEL" || test -z "$GHC_PKG_JSON" || \

     test -z "$GHC_PKG_NETWORK"; then

    if test "$enable_htools" != "check"; then

      AC_MSG_FAILURE(m4_normalize([Required Haskell modules not found, htools

                                   compilation disabled]))

    fi

  else

    # we leave the other modules to be auto-selected

    HTOOLS_MODULES="-package $GHC_PKG_PARALLEL"

  fi

  if test -z "$GHC_PKG_QUICKCHECK"; then

     AC_MSG_WARN(m4_normalize([The QuickCheck 2.x module was not found,

                               you won't be able to run Haskell unittests]))

  fi

fi

AC_SUBST(HTOOLS_MODULES)

AC_SUBST(GHC_PKG_QUICKCHECK)

if test "$enable_htools" != "no"; then

  if test -z "$GHC" || test -z "$HTOOLS_MODULES"; then

    AC_MSG_WARN(m4_normalize([Haskell compiler/required libraries not found,

                              htools compilation disabled]))

  else

    HTOOLS=yes

  fi

fi

AC_SUBST(HTOOLS)

# Check for HsColour

HTOOLS_APIDOC=no

AC_ARG_VAR(HSCOLOUR, [HsColour path])

AC_PATH_PROG(HSCOLOUR, [HsColour], [])

if test -z "$HSCOLOUR"; then

  AC_MSG_WARN(m4_normalize([HsColour not found, htools API documentation will

                            not be generated]))

fi

# Check for haddock

AC_ARG_VAR(HADDOCK, [haddock path])

AC_PATH_PROG(HADDOCK, [haddock], [])

if test -z "$HADDOCK"; then

  AC_MSG_WARN(m4_normalize([haddock not found, htools API documentation will

                            not be generated]))

fi

if test "$HADDOCK" && test "$HSCOLOUR"; then

  HTOOLS_APIDOC=yes

fi

AC_SUBST(HTOOLS_APIDOC)

# Check for hlint

HLINT=no

AC_ARG_VAR(HLINT, [hlint path])

AC_PATH_PROG(HLINT, [hlint], [])

if test -z "$HLINT"; then

  AC_MSG_WARN([hlint not found, checking code will not be possible])

fi

fi # end if enable_htools, define automake conditions

if test "$HTOOLS" != "yes" && test "$HS_CONFD" = "True"; then

   AC_MSG_ERROR(m4_normalize([cannot enable Haskell version of ganeti-confd if

                              htools support is not enabled]))

fi

AM_CONDITIONAL([WANT_HTOOLS], [test x$HTOOLS = xyes])

AM_CONDITIONAL([WANT_HTOOLSTESTS], [test "x$GHC_PKG_QUICKCHECK" != x])

AM_CONDITIONAL([WANT_HTOOLSAPIDOC], [test x$HTOOLS_APIDOC = xyes])

AM_CONDITIONAL([HAS_HLINT], [test "$HLINT"])

# Check for fakeroot

AC_ARG_VAR(FAKEROOT_PATH, [fakeroot path])

AC_PATH_PROG(FAKEROOT_PATH, [fakeroot], [])

if test -z "$FAKEROOT_PATH"; then

  AC_MSG_WARN(m4_normalize([fakeroot not found, tests that must run as root

                            will not be executed]))

fi

AM_CONDITIONAL([HAS_FAKEROOT], [test "x$FAKEROOT_PATH" != x])

SOCAT_USE_ESCAPE=

AC_ARG_ENABLE([socat-escape],

  [AS_HELP_STRING([--enable-socat-escape],

    [use escape functionality available in socat >= 1.7 (default: detect

     automatically)])],

  [[if test "$enableval" = yes; then

      SOCAT_USE_ESCAPE=True

    else

      SOCAT_USE_ESCAPE=False

    fi

  ]])

if test -z "$SOCAT_USE_ESCAPE"

then

  if $SOCAT -hh | grep -w -q escape; then

    SOCAT_USE_ESCAPE=True

  else

    SOCAT_USE_ESCAPE=False

  fi

fi

AC_SUBST(SOCAT_USE_ESCAPE)

SOCAT_USE_COMPRESS=

AC_ARG_ENABLE([socat-compress],

  [AS_HELP_STRING([--enable-socat-compress],

    [use OpenSSL compression option available in patched socat builds

     (see INSTALL for details; default: detect automatically)])],

  [[if test "$enableval" = yes; then

      SOCAT_USE_COMPRESS=True

    else

      SOCAT_USE_COMPRESS=False

    fi

  ]])

if test -z "$SOCAT_USE_COMPRESS"

then

  if $SOCAT -hhh | grep -w -q openssl-compress; then

    SOCAT_USE_COMPRESS=True

  else

    SOCAT_USE_COMPRESS=False

  fi

fi

AC_SUBST(SOCAT_USE_COMPRESS)

if man --help | grep -q -e --warnings

then

  MAN_HAS_WARNINGS=1

else

  MAN_HAS_WARNINGS=

  AC_MSG_WARN(m4_normalize([man does not support --warnings, man page checks

                            will not be possible]))

fi

AC_SUBST(MAN_HAS_WARNINGS)

# Check for Python

AM_PATH_PYTHON(2.4)

AC_PYTHON_MODULE(OpenSSL, t)

AC_PYTHON_MODULE(simplejson, t)

AC_PYTHON_MODULE(pyparsing, t)

AC_PYTHON_MODULE(pyinotify, t)

AC_PYTHON_MODULE(pycurl, t)

AC_PYTHON_MODULE(affinity)

# This is optional but then we've limited functionality

AC_PYTHON_MODULE(paramiko)

if test "$HAVE_PYMOD_PARAMIKO" = "no"; then

  AC_MSG_WARN(m4_normalize([You do not have Paramiko installed. While this is

                            optional you have to configure SSH and the node

                            daemon on the joining nodes yourself.]))

fi

AC_CONFIG_FILES([ Makefile ])

AC_OUTPUT