Index: rust-ring-0.17.8/build.rs
===================================================================
--- rust-ring-0.17.8.orig/build.rs
+++ rust-ring-0.17.8/build.rs
@@ -248,6 +248,7 @@ const LINUX_ABI: &[&str] = &[
     "freebsd",
     "fuchsia",
     "haiku",
+    "hurd",
     "illumos",
     "netbsd",
     "openbsd",
Index: rust-ring-0.17.8/src/rand.rs
===================================================================
--- rust-ring-0.17.8.orig/src/rand.rs
+++ rust-ring-0.17.8/src/rand.rs
@@ -132,6 +132,7 @@ impl crate::sealed::Sealed for SystemRan
     target_os = "freebsd",
     target_os = "haiku",
     target_os = "hermit",
+    target_os = "hurd",
     target_os = "illumos",
     target_os = "ios",
     target_os = "linux",
