diff --git a/lang/spidermonkey/Makefile b/lang/spidermonkey/Makefile
index e9b022f3692f..789b36de2383 100644
--- a/lang/spidermonkey/Makefile
+++ b/lang/spidermonkey/Makefile
@@ -66,4 +66,10 @@ do-install:
 	${CP} ${WRKSRC}/${OPSYS}`${UNAME} -r`_DBG.OBJ/jsautocfg.h ${WRKSRC}
 	@${INSTALL_DATA} ${JSH:S,^,${WRKSRC}/,} ${PREFIX}/include/
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == "sparc64" && ${OSVERSION} > 900000
+BROKEN=		Does not build on sparc64-9: fails to link
+.endif
+
+.include <bsd.port.post.mk>