build also aarch64 port for libhermit

config.toml

@@ -126,7 +126,7 @@ targets = "X86;AArch64"
 # In addition to all host triples, other triples to produce the standard library
 # for. Each host triple will be used to produce a copy of the standard library
 # for each target triple.
-target = ['x86_64-unknown-hermit']
+target = ['x86_64-unknown-hermit', 'aarch64-unknown-hermit']
 
 # Instead of downloading the src/stage0.txt version of Cargo specified, use
 # this Cargo binary instead to build all Rust code
@@ -209,7 +209,7 @@ tools = ["cargo", "rls", "clippy", "rustfmt", "analysis", "src"]
 # Arguments passed to the `./configure` script, used during distcheck. You
 # probably won't fill this in but rather it's filled in by the `./configure`
 # script.
-configure-args = ['--target=x86_64-unknown-hermit']
+configure-args = ['--target=x86_64-unknown-hermit,aarch64-unknown-hermit']
 
 # Indicates that a local rebuild is occurring instead of a full bootstrap,
 # essentially skipping stage0 as the local compiler is recompiling itself again.