New comment by biopsin on void-packages repository

https://github.com/void-linux/void-packages/pull/33270#issuecomment-932858188

Comment:
From what I could gather [[source](https://www.rohanjain.in/cargo-cross/)] and patching .cargo/config worked building locally for aarch64, but I really dont know this well.
```
--- a/.cargo/config	2021-10-03 05:24:36.000000000 +0200
+++ b/.cargo/config	2021-10-03 05:24:45.701091821 +0200
@@ -3,6 +3,12 @@
 # In the distributed tarball, this file should end up in
 # rust/.cargo/config
 
+[target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"
+
+[target.armv7-unknown-linux-gnueabihf]
+linker = "arm-linux-gnueabihf-gcc"
+
 [source.crates-io]
 registry = 'https://github.com/rust-lang/crates.io-index'
 replace-with = 'vendored-sources'

```