+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, $export_dir)
+
+# --with-os-search-path=...
+# do a bit of black sed magic to for quoting of the strings in the list
+AC_ARG_WITH([os-search-path],
+ [AS_HELP_STRING([--with-os-search-path=LIST],
+ [comma separated list of directories to]
+ [ search for OS images (default is /srv/ganeti/os)]
+ )],
+ [os_search_path=`echo -n "$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, $iallocator_search_path)
+
+# --with-xen-kernel=...
+AC_ARG_WITH([xen-kernel],
+ [AS_HELP_STRING([--with-xen-kernel=PATH],
+ [DomU kernel image for Xen hypervisor (default is /boot/vmlinuz-2.6-xenU)]
+ )],
+ [xen_kernel="$withval"],
+ [xen_kernel="/boot/vmlinuz-2.6-xenU"])
+AC_SUBST(XEN_KERNEL, $xen_kernel)
+
+# --with-xen-initrd=...
+AC_ARG_WITH([xen-initrd],
+ [AS_HELP_STRING([--with-xen-initrd=PATH],
+ [DomU initrd image for Xen hypervisor (default is /boot/initrd-2.6-xenU)]
+ )],
+ [xen_initrd="$withval"],
+ [xen_initrd="/boot/initrd-2.6-xenU"])
+AC_SUBST(XEN_INITRD, $xen_initrd)
+
+# --with-file-storage-dir=...
+AC_ARG_WITH([file-storage-dir],
+ [AS_HELP_STRING([--with-file-storage-dir=PATH],
+ [directory to store files for file-based backend]
+ [ (default is /srv/ganeti/file-storage)]
+ )],
+ [file_storage_dir="$withval"],
+ [file_storage_dir="/srv/ganeti/file-storage"])
+AC_SUBST(FILE_STORAGE_DIR, $file_storage_dir)
+
+# --with-kvm-path=...
+AC_ARG_WITH([kvm-path],
+ [AS_HELP_STRING([--with-kvm-path=PATH],
+ [absolute path to the kvm binary]
+ [ (default is /usr/bin/kvm)]
+ )],
+ [kvm_path="$withval"],
+ [kvm_path="/usr/bin/kvm"])
+AC_SUBST(KVM_PATH, $kvm_path)
+
+# --with-kvm-migration-port=...
+AC_ARG_WITH([kvm-migration-port],
+ [AS_HELP_STRING([--with-kvm-migration-port=PORT],
+ [tcp port used for kvm instance live migration]
+ [ (default is 8102)]
+ )],
+ [kvm_migration_port="$withval"],
+ [kvm_migration_port="8102"])
+AC_SUBST(KVM_MIGRATION_PORT, $kvm_migration_port)
+
+# --with-socat-path=...
+AC_ARG_WITH([socat-path],
+ [AS_HELP_STRING([--with-socat-path=PATH],
+ [absolute path to the socat binary]
+ [ (default is /usr/bin/socat)]
+ )],
+ [socat_path="$withval"],
+ [socat_path="/usr/bin/socat"])
+AC_SUBST(SOCAT_PATH, $socat_path)
+
+# ---with-lvm-stripecount=...
+AC_ARG_WITH([lvm-stripecount],
+ [AS_HELP_STRING([--with-lvm-stripecount=NUM],
+ [the number of stripes to use for LVM volumes]
+ [ (default is 1)]
+ )],
+ [lvm_stripecount="$withval"],
+ [lvm_stripecount="1"])
+AC_SUBST(LVM_STRIPECOUNT, $lvm_stripecount)
+
+# Check common programs