Index: gdb/config/powerpc/obsd64.mh
--- gdb/config/powerpc/obsd64.mh.orig
+++ gdb/config/powerpc/obsd64.mh
@@ -0,0 +1,4 @@
+# Host: OpenBSD/powerpc
+NATDEPFILES= fork-child.o inf-ptrace.o obsd-nat.o ppc64-obsd-nat.o bsd-kvm.o
+
+LOADLIBES= -lkvm