make: Entering directory `/usr/src/linux-2.6.31.5' CC [M] /usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6/platform-pci/platform-pci.o : warning: "__XEN_INTERFACE_VERSION__" redefined : warning: this is the location of the previous definition In file included from :0: ./include/linux/autoconf.h:200:1: warning: "CONFIG_XEN_COMPAT" redefined : warning: this is the location of the previous definition /usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c: In function ‘set_callback_via’: /usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c:251: error: implicit declaration of function ‘HYPERVISOR_hvm_op’ make[2]: *** [/usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6/platform-pci/platform-pci.o] Error 1 make[1]: *** [/usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6/platform-pci] Error 2 make: *** [_module_/usr/src/hg/xen-unstable.hg/unmodified_drivers/linux-2.6] Error 2 make: Leaving directory `/usr/src/linux-2.6.31.5'