Lower memory usage for riscv64

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

rust.spec

@@ -89,7 +89,7 @@
 
 Name:           rust
 Version:        1.73.0
-Release:        2%{?dist}
+Release:        2.0.riscv64%{?dist}
 Summary:        The Rust Programming Language
 License:        (Apache-2.0 OR MIT) AND (Artistic-2.0 AND BSD-3-Clause AND ISC AND MIT AND MPL-2.0 AND Unicode-DFS-2016)
 # ^ written as: (rust itself) and (bundled libraries)
@@ -680,7 +680,7 @@ end}
 %build
 %{export_rust_env}
 
-%ifarch %{arm} %{ix86}
+%ifarch %{arm} %{ix86} riscv64
 # full debuginfo is exhausting memory; just do libstd for now
 # https://github.com/rust-lang/rust/issues/45854
 %define enable_debuginfo --debuginfo-level=0 --debuginfo-level-std=2
@@ -1062,6 +1062,9 @@ rm -rf "./build/%{rust_triple}/stage2-tools/%{rust_triple}/cit/"
 
 
 %changelog
+* Wed Nov 08 2023 David Abdurachmanov <davidlt@rivosinc.com> - 1.73.0-2.0.riscv64
+- Lower memory usage on riscv64
+
 * Thu Oct 26 2023 Josh Stone <jistone@redhat.com> - 1.73.0-2
 - Use thin-LTO and PGO for rustc itself.