Index: bsd.port.mk
===================================================================
--- bsd.port.mk	(revision 334169)
+++ bsd.port.mk	(working copy)
@@ -3625,7 +3625,8 @@
 do-patch:
 .if defined(PATCHFILES)
 	@${ECHO_MSG} "===>  Applying distribution patches for ${PKGNAME}"
-	@(cd ${_DISTDIR}; \
+	@(set -e;
+	cd ${_DISTDIR}; \
 	patch_dist_strip () { \
 		case "$$1" in \
 		${_PATCH_DIST_STRIP_CASES} \