diff -ur a/Cargo.toml b/Cargo.toml

--- a/Cargo.toml	1969-12-31 19:00:01.000000000 -0500

+++ b/Cargo.toml	2023-03-14 07:57:14.025021766 -0400

@@ -195,6 +195,7 @@

 [features]

 docgen = ["dep:clap_mangen"]

+default = ["rdcore"]

 rdcore = []

 [target."cfg(target_arch = \"s390x\")".dependencies.mbrman]