tools: add with-xen-scriptdir configure option

Some distros plan for fresh installations will have an empty /etc,
whose content will not be controlled by the package manager anymore.

To make this possible, add a knob to configure to allow storing the
hotplug scripts to libexec instead of /etc/xen/scripts.

The current default remains unchanged, which is /etc/xen/scripts.

[autoconf rerun -iwj]

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Release-Acked-by: Ian Jackson <iwj@xenproject.org>
Reviewed-by: Ian Jackson <iwj@xenproject.org>

m4/paths.m4

@@ -76,6 +76,14 @@ AC_ARG_WITH([libexec-leaf-dir],
     [libexec_subdir=$withval],
     [libexec_subdir=$PACKAGE_TARNAME])
 
+AC_ARG_WITH([xen-scriptdir],
+    AS_HELP_STRING([--with-xen-scriptdir=DIR],
+    [Path to directory for dom0 hotplug scripts. [SYSCONFDIR/xen/scripts]]),
+    [xen_scriptdir_path=$withval],
+    [xen_scriptdir_path=$XEN_CONFIG_DIR/scripts])
+XEN_SCRIPT_DIR=$xen_scriptdir_path
+AC_SUBST(XEN_SCRIPT_DIR)
+
 AC_ARG_WITH([xen-dumpdir],
     AS_HELP_STRING([--with-xen-dumpdir=DIR],
     [Path to directory for domU crash dumps. [LOCALSTATEDIR/lib/xen/dump]]),
@@ -137,9 +145,6 @@ AC_SUBST(SHAREDIR)
 INITD_DIR=$initddir_path
 AC_SUBST(INITD_DIR)
 
-XEN_SCRIPT_DIR=$XEN_CONFIG_DIR/scripts
-AC_SUBST(XEN_SCRIPT_DIR)
-
 case "$host_os" in
 *freebsd*) XEN_LOCK_DIR=$localstatedir/lib ;;
 *netbsd*) XEN_LOCK_DIR=$rundir_path ;;