--- modcargo-crates/mmap-rs-0.6.1/src/error.rs.orig.port	Sat Jul 24 00:00:00 2006
+++ modcargo-crates/mmap-rs-0.6.1/src/error.rs	Tue Jul  8 00:00:00 2026
@@ -51,7 +51,8 @@ pub enum Error {
     #[error(transparent)]
     Nix(#[from] nix::Error),

-    #[cfg(unix)]
+    #[cfg(any(target_os = "linux", target_os = "android",
+              target_os = "macos", target_os = "ios", target_os = "freebsd"))]
     /// Represents [`sysctl::SysctlError`].
     #[error(transparent)]
     Sysctl(#[from] sysctl::SysctlError),