Index: usr.sbin/kldxref/Makefile
===================================================================
--- usr.sbin/kldxref/Makefile
+++ usr.sbin/kldxref/Makefile
@@ -6,7 +6,7 @@
 
 WARNS?=	2
 
-.if exists(ef_${MACHINE_CPUARCH}.c) && ${MACHINE_ARCH} != "powerpc64"
+.if exists(ef_${MACHINE_CPUARCH}.c)
 SRCS+=	ef_${MACHINE_CPUARCH}.c
 .else
 SRCS+=	ef_nop.c
Index: usr.sbin/kldxref/ef_powerpc.c
===================================================================
--- usr.sbin/kldxref/ef_powerpc.c
+++ usr.sbin/kldxref/ef_powerpc.c
@@ -34,10 +34,17 @@
 
 #include <err.h>
 #include <errno.h>
+#include <inttypes.h>
 #include <string.h>
 
 #include "ef.h"
 
+#ifdef __powerpc64__
+#define PRI_ELF_SIZE PRIu64
+#else
+#define PRI_ELF_SIZE PRIu32
+#endif
+
 /*
  * Apply relocations to the values obtained from the file. `relbase' is the
  * target relocation address of the section, and `dataoff/len' is the region
@@ -63,11 +70,11 @@
 		return (0);
 
 	switch (rtype) {
-	case R_PPC_RELATIVE: /* word32 B + A */
+	case R_PPC_RELATIVE: /* word32|doubleword64 B + A */
 		*where = relbase + addend;
 		break;
 	default:
-		warnx("unhandled relocation type %u", rtype);
+		warnx("unhandled relocation type %" PRI_ELF_SIZE, rtype);
 	}
 	return (0);
 }