revert part of the previous commit bringing the removal of

-Wl,--no-undefined back as it does not build otherwise.
discussed with jasper@ and sthen@

multimedia/libvpx/patches/patch-build_make_Makefile

@@ -1,18 +1,17 @@
-$OpenBSD: patch-build_make_Makefile,v 1.3 2012/08/27 20:42:25 jasper Exp $
---- build/make/Makefile.orig	Tue May  8 19:14:00 2012
-+++ build/make/Makefile	Fri Aug 17 23:33:14 2012
-@@ -247,8 +247,8 @@ define so_template
+$OpenBSD: patch-build_make_Makefile,v 1.4 2012/08/28 13:04:01 fgsch Exp $
+--- build/make/Makefile.orig	Fri Jan 27 13:36:39 2012
++++ build/make/Makefile	Sun Jan 29 21:11:03 2012
+@@ -247,8 +247,7 @@ define so_template
  # This needs further abstraction for dealing with non-GNU linkers.
  $(1):
  	$(if $(quiet),@echo "    [LD] $$@")
 -	$(qexec)$$(LD) -shared $$(LDFLAGS) \
 -            -Wl,--no-undefined -Wl,-soname,$$(SONAME) \
 +	$(qexec)$$(LD) -shared -fPIC $$(LDFLAGS) \
-+            -Wl,--no-undefined \
              -Wl,--version-script,$$(SO_VERSION_SCRIPT) -o $$@ \
              $$(filter %.o,$$?) $$(extralibs)
  endef
-@@ -316,7 +316,7 @@ LIBS=$(call enabled,LIBS)
+@@ -316,7 +315,7 @@ LIBS=$(call enabled,LIBS)
  .libs: $(LIBS)
  	@touch $@
  $(foreach lib,$(filter %_g.a,$(LIBS)),$(eval $(call archive_template,$(lib))))