... and fix the name of the sha1 file name.
diff --git a/Modules/Setup.dist b/Modules/Setup.dist
index 3504f82..f45de5c 100644
--- a/Modules/Setup.dist
+++ b/Modules/Setup.dist
@@ -241,7 +241,7 @@
 
 # The _sha module implements the SHA checksum algorithms.
 # (NIST's Secure Hash Algorithms.)
-#_sha1 shamodule.c
+#_sha1 sha1module.c
 #_sha256 sha256module.c
 #_sha512 sha512module.c