Read env variable at runtime rather than compile time

rust-lang · Nov 1, 2020 · ccc2695 · ccc2695
1 parent 90e2bfa
commit ccc2695
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/config.rs b/src/config.rs
@@ -199,7 +199,7 @@ impl Cfg {
             // If present, use the RUSTUP_OVERRIDE_UNIX_FALLBACK_SETTINGS environment
             // variable as settings path, or UNIX_FALLBACK_SETTINGS otherwise
             FallbackSettings::new(PathBuf::from(
-                option_env!("RUSTUP_OVERRIDE_UNIX_FALLBACK_SETTINGS")
+                process().var("RUSTUP_OVERRIDE_UNIX_FALLBACK_SETTINGS")
                     .unwrap_or(UNIX_FALLBACK_SETTINGS),
             ))?
         } else {