Hi, I''m using xen4.2.1 source to build in Ubuntu 13.04 after installingprerequisites. I''m doing make world , it is giving error as give below. Can you suggest any solution for this. CC i386-dm/i386-dis.o AR i386-dm/libqemu.a LINK i386-dm/qemu-dm vl.o: In function `dynticks_stop_timer'': /home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional/vl.c:1603: undefined reference to `timer_delete'' vl.o: In function `dynticks_start_timer'': /home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional/vl.c:1585: undefined reference to `timer_create'' vl.o: In function `dynticks_rearm_timer'': /home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional/vl.c:1620: undefined reference to `timer_gettime'' /home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional/vl.c:1633: undefined reference to `timer_settime'' collect2: error: ld returned 1 exit status make[5]: *** [qemu-dm] Error 1 make[5]: Leaving directory `/home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional-dir/i386-dm'' make[4]: *** [subdir-i386-dm] Error 2 make[4]: Leaving directory `/home/prapulla/Documents/xen/xen-4.2.3/tools/qemu-xen-traditional-dir'' make[3]: *** [subdir-install-qemu-xen-traditional-dir] Error 2 make[3]: Leaving directory `/home/prapulla/Documents/xen/xen-4.2.3/tools'' make[2]: *** [subdirs-install] Error 2 make[2]: Leaving directory `/home/prapulla/Documents/xen/xen-4.2.3/tools'' make[1]: *** [install-tools] Error 2 make[1]: Leaving directory `/home/prapulla/Documents/xen/xen-4.2.3'' make: *** [world] Error 2 With Regards Prapulla Kumar R _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users