--- libev-4.24.orig/Makefile.am	2018-06-21 14:31:18.448565853 -0400
+++ libev-4.24/Makefile.am	2018-06-21 14:31:22.978609185 -0400
@@ -14,7 +14,7 @@
 lib_LTLIBRARIES = libev.la
 
 libev_la_SOURCES = ev.c event.c
-libev_la_LDFLAGS = -version-info $(VERSION_INFO)
+libev_la_LDFLAGS = -version-info $(VERSION_INFO) -no-undefined
 
 ev.3: ev.pod
 	pod2man -n LIBEV -r "libev-$(VERSION)" -c "libev - high performance full featured event loop" -s3 <$< >$@