diff --git a/xen-glibc217.patch b/xen-glibc217.patch
new file mode 100644
index 0000000..eb1fd0a
--- /dev/null
+++ b/xen-glibc217.patch
@@ -0,0 +1,12 @@
+Index: xen-4.2.0-testing/tools/debugger/gdbsx/xg/xg_main.c
+===================================================================
+--- xen-4.2.0-testing.orig/tools/debugger/gdbsx/xg/xg_main.c
++++ xen-4.2.0-testing/tools/debugger/gdbsx/xg/xg_main.c
+@@ -34,6 +34,7 @@
+  *  XGTRC(): generic trace utility
+  */
+ 
++#include <sys/types.h>
+ #include <stdio.h>
+ #include <stddef.h>
+ #include <stdarg.h>
diff --git a/xen.changes b/xen.changes
index fd49818..2cbc3a6 100644
--- a/xen.changes
+++ b/xen.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Nov 17 10:51:05 UTC 2012 - aj@suse.de
+
+- Fix build with glibc 2.17: add patch xen-glibc217.patch, fix
+  configure for librt.
+
 -------------------------------------------------------------------
 Tue Oct  9 06:19:55 MDT 2012 - carnold@novell.com
 
diff --git a/xen.spec b/xen.spec
index 978191c..90a7e90 100644
--- a/xen.spec
+++ b/xen.spec
@@ -15,6 +15,7 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
+
 Name:           xen
 ExclusiveArch:  %ix86 x86_64
 %define xvers 4.2
@@ -292,6 +293,7 @@ Patch457:       xen-cpupool-xl-config-format.patch
 Patch458:       ipxe-enable-nics.patch
 Patch459:       blktap-close-fifos.patch
 Patch460:       blktap-disable-debug-printf.patch
+Patch461:       xen-glibc217.patch
 # Jim's domain lock patch
 Patch480:       xend-domain-lock.patch
 Patch481:       xend-domain-lock-sfex.patch
@@ -776,6 +778,7 @@ tar xfj %{SOURCE6} -C $RPM_BUILD_DIR/%{xen_build_dir}/tools
 %patch458 -p1
 %patch459 -p1
 %patch460 -p1
+%patch461 -p1
 %patch480 -p1
 %patch481 -p1
 %patch500 -p1
@@ -798,6 +801,11 @@ tar xfj %{SOURCE6} -C $RPM_BUILD_DIR/%{xen_build_dir}/tools
 %patch700 -p1
 %patch99998 -p1
 %patch99999 -p1
+# tools/qemu-xen-traditional-dir-remote/configure ./tools/qemu-xen-dir-remote/configure use
+# clock_gettime to check whether -lrt is needed - and don't check other functions
+# with glibc 2.17 clock_gettime is part of libc, so use timer_settime
+sed -i -e 's/int main(void) { clockid_t id; return clock_gettime(id, NULL); }/int main(void) { struct itimerspec  v;timer_t t; return timer_gettime (t, \&v);}/' \
+tools/qemu-xen-traditional-dir-remote/configure ./tools/qemu-xen-dir-remote/configure
 
 %build
 XEN_EXTRAVERSION=%version-%release