setup.py: report modules which built but import failed (closes #21282)

Patch by Lukas Vacek.
diff --git a/Misc/ACKS b/Misc/ACKS
index 82c6f71..827c784 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1356,6 +1356,7 @@
 Daniel Urban
 Michael Urman
 Hector Urtubia
+Lukas Vacek
 Ville Vainio
 Andi Vajda
 Case Van Horsen