Ignore unused variable for non-linux builds

[rust.git] / src / tools / rustbook / src / main.rs

diff --git a/src/tools/rustbook/src/main.rs b/src/tools/rustbook/src/main.rs
index 668ee1edf36978aa832fcee9c7b63dcd28d32138..d9b16780107be150448232868a47d4f049f9ba73 100644 (file)
--- a/src/tools/rustbook/src/main.rs
+++ b/src/tools/rustbook/src/main.rs
@@ -12,6 +12,8 @@
 
 use mdbook::MDBook;
 use mdbook::errors::{Result as Result3};
+
+#[cfg(all(target_arch = "x86_64", target_os = "linux"))]
 use mdbook::renderer::RenderContext;
 
 #[cfg(all(target_arch = "x86_64", target_os = "linux"))]
@@ -79,9 +81,12 @@ fn main() {
             if let Err(err) = linkcheck(sub_matches) {
                 eprintln!("Error: {}", err);
 
-                if let Ok(broken_links) = err.downcast::<BrokenLinks>() {
-                    for cause in broken_links.links().iter() {
-                        eprintln!("\tCaused By: {}", cause);
+                #[cfg(all(target_arch = "x86_64", target_os = "linux"))]
+                {
+                    if let Ok(broken_links) = err.downcast::<BrokenLinks>() {
+                        for cause in broken_links.links().iter() {
+                            eprintln!("\tCaused By: {}", cause);
+                        }
                     }
                 }
 
@@ -103,7 +108,7 @@ pub fn linkcheck(args: &ArgMatches<'_>) -> Result<(), Error> {
 }
 
 #[cfg(not(all(target_arch = "x86_64", target_os = "linux")))]
-pub fn linkcheck(args: &ArgMatches<'_>) -> Result<(), Error> {
+pub fn linkcheck(_args: &ArgMatches<'_>) -> Result<(), Error> {
     bail!("mdbook-linkcheck only works on x86_64 linux targets.");
 }