e5bd00e48d
them define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH in pci_machdep.h and pciide_map_compat_intr() only calls pciide_machdep_compat_intr_establish() if that preprocessor define exists. Ports that don't need to do this no longer need to supply a dummy function.