--- a
+++ b/packaging/macports/textproc/recoll/files/patch-mkin-no-no-undefined.diff
@@ -0,0 +1,12 @@
+--- Makefile.in 2018-11-15 19:07:37.000000000 +0100
++++ Makefile.in.new 2018-11-29 17:08:19.000000000 +0100
+@@ -720,8 +720,7 @@
+ # We use -release: the lib is only shared
+ # between recoll programs from the same release.
+ # -version-info $(VERSION_INFO)
+-librecoll_la_LDFLAGS = -release $(VERSION) \
+- -Wl,--no-undefined -Wl,--warn-unresolved-symbols
++librecoll_la_LDFLAGS = -release $(VERSION)
+
+ librecoll_la_LIBADD = $(LIBXAPIAN) $(LIBICONV) $(LIBTHREADS)
+ recollindex_SOURCES = \