devel/ocaml-result: fix build on powerpc

devel/ocaml-result/Makefile

@@ -22,6 +22,12 @@ MAKE_ENV=	LIBDIR=${PREFIX}/${OCAML_SITELIBDIR}
 
 OPTIONS_DEFINE=	DOCS
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc
+USE_BINUTILS=	yes
+.endif
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/${OCAML_SITELIBDIR}/result/result.cmxs