Add zip_get_num_entries.

--HG--
branch : HEAD
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index e5e08de..99c4014 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -88,6 +88,7 @@
   zip_get_file_comment.c
   zip_get_file_extra.c
   zip_get_name.c
+  zip_get_num_entries.c
   zip_get_num_files.c
   zip_memdup.c
   zip_name_locate.c