gh-86275: Fix install of new _hypothesis_stubs directory (#104425)

diff --git a/Makefile.pre.in b/Makefile.pre.in
index 329466580b9cb088b1b389cccbee528d80b747a1..52cafabd1ab999a6a81c996d6266840f82966a52 100644 (file)
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -2060,6 +2060,7 @@ TESTSUBDIRS=      idlelib/idle_test \
                test/sndhdrdata \
                test/subprocessdata \
                test/support \
+               test/support/_hypothesis_stubs \
                test/test_asyncio \
                test/test_capi \
                test/test_ctypes \