getting close to where this might be useful...

src/etc/etc.sparc64/Makefile.inc

@@ -0,0 +1,21 @@
+#	$OpenBSD: Makefile.inc,v 1.1 2001/09/11 15:51:50 jason Exp $
+#	etc.sparc64/Makefile.inc -- sparc64-specific etc Makefile targets
+
+.ifdef DESTDIR
+snap_md: bsd bootblocks distrib
+	cp ${.CURDIR}/../sys/arch/sparc64/compile/GENERIC/bsd \
+	    ${DESTDIR}/snapshot/bsd
+
+bsd:
+	cd ${.CURDIR}/../sys/arch/sparc64/conf && config GENERIC
+	cd ${.CURDIR}/../sys/arch/sparc64/compile/GENERIC && \
+	    make clean && make depend && make
+
+bootblocks:
+	cp ${DESTDIR}/usr/mdec/*boot* ${DESTDIR}/snapshot
+
+distrib:
+	cd ${.CURDIR}/../distrib && make cleandir && \
+	    make && make install
+
+.endif	# DESTDIR check