Add new subdirectory to LIBSUBDIRS.

diff --git a/Makefile.pre.in b/Makefile.pre.in
index 24d364dd5cd5bd11fc6148d6dc0d78ec735688d4..45a6d523756b6e7422c2049197a1a73ec6da8475 100644 (file)
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -906,7 +906,7 @@ LIBSUBDIRS= tkinter tkinter/test tkinter/test/test_tkinter \
                 tkinter/test/test_ttk site-packages test \
                test/decimaltestdata test/xmltestdata test/subprocessdata \
                test/tracedmodules test/encoded_modules \
-               concurrent concurrent/futures encodings \
+               collections concurrent concurrent/futures encodings \
                email email/mime email/test email/test/data \
                html json test/json_tests http dbm xmlrpc \
                sqlite3 sqlite3/test \