diff -Naur ./a/libdatrie.def ./b/libdatrie.def
--- a/datrie/libdatrie.def	2013-10-17 06:27:57.000000000 +0300
+++ b/datrie/libdatrie.def	2017-12-21 02:42:39.873879000 +0300
@@ -1,3 +1,4 @@
+EXPORTS
 alpha_map_new
 alpha_map_clone
 alpha_map_free