$OpenBSD: patch-src_bootstrap_bin_rustc_rs,v 1.15 2020/08/27 17:24:57 semarie Exp $
try to reduce memory usage on aarch64:
 - reduce memory use by retaining fewer names within compilation artifacts
Index: src/bootstrap/bin/rustc.rs
--- src/bootstrap/bin/rustc.rs.orig
+++ src/bootstrap/bin/rustc.rs
@@ -105,6 +105,13 @@ fn main() {
         {
             cmd.arg("-C").arg("panic=abort");
         }
+
+        if target.unwrap().contains("aarch64-unknown-openbsd")
+            && crate_name == Some("rustc")
+        {
+            cmd.arg("-Z").arg("fewer-names");
+        }
+            
     } else {
         // FIXME(rust-lang/cargo#5754) we shouldn't be using special env vars
         // here, but rather Cargo should know what flags to pass rustc itself.
