build: add --with-rundir option to configure

There have been reports that Fedora 25 uses /run instead of /var/run.

Add a --with-rundir option ito configure to be able to specify that
directory. Default is still /var/run.

A re-run of autogen.sh is required.

Signed-off-by: Juergen Gross <jgross@suse.com>
[ wei: run autogen.sh ]
Acked-by: Wei Liu <wei.liu2@citrix.com>

docs/configure

@@ -658,6 +658,7 @@ with_initddir
 with_sysconfig_leaf_dir
 with_libexec_leaf_dir
 with_xen_dumpdir
+with_rundir
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1288,6 +1289,8 @@ Optional Packages:
                           Name of subdirectory in libexecdir to use.
   --with-xen-dumpdir=DIR  Path to directory for domU crash dumps.
                           [LOCALSTATEDIR/lib/xen/dump]
+  --with-rundir=DIR       Path to directory for runtime data.
+                          [LOCALSTATEDIR/run]
 
 Some influential environment variables:
   FIG2DEV     Path to fig2dev tool
@@ -1859,6 +1862,15 @@ else
 fi
 
 
+
+# Check whether --with-rundir was given.
+if test "${with_rundir+set}" = set; then :
+  withval=$with_rundir; rundir_path=$withval
+else
+  rundir_path=$localstatedir/run
+fi
+
+
 if test "$libexecdir" = '${exec_prefix}/libexec' ; then
     case "$host_os" in
          *netbsd*) ;;
@@ -1879,7 +1891,7 @@ LIBEXEC_INC=${LIBEXEC}/include
 XENFIRMWAREDIR=${LIBEXEC}/boot
 
 
-XEN_RUN_DIR=$localstatedir/run/xen
+XEN_RUN_DIR=$rundir_path/xen
 
 
 XEN_LOG_DIR=$localstatedir/log/xen
@@ -1888,7 +1900,7 @@ XEN_LOG_DIR=$localstatedir/log/xen
 XEN_LIB_STORED=$localstatedir/lib/xenstored
 
 
-XEN_RUN_STORED=$localstatedir/run/xenstored
+XEN_RUN_STORED=$rundir_path/xenstored
 
 
 XEN_LIB_DIR=$localstatedir/lib/xen