cython: Fix Windows build
diff --git a/cython/Makefile.am b/cython/Makefile.am
index 4079977..bbc51c9 100644
--- a/cython/Makefile.am
+++ b/cython/Makefile.am
@@ -42,6 +42,10 @@
 plist_la_LDFLAGS = -module -avoid-version $(PYTHON_LIBS) $(AM_LDFLAGS) -shared -export-dynamic
 plist_la_LIBADD = $(top_builddir)/src/libplist-2.0.la
 
+if WIN32
+plist_la_LDFLAGS += -no-undefined
+endif
+
 plist.c: plist.pyx $(PXDINCLUDES) $(PXIINCLUDES)
 
 .pyx.c: