Document install settings for non-glibc systems

See greshake#1786

doc/manual_install.md

@@ -7,6 +7,13 @@
 
 Compilation is only tested with very recent stable versions of `rustc`. If you use a distro with older Rust packages, consider using [rustup](https://rustup.rs/) to install a newer toolchain.
 
+On systems using alternative (non-glibc) C standard libraries like `musl`, `cargo` must be configured to not link the libc statically. Otherwise, blocks needing to link to system libraries like `temperature`, `sound` (for pulseaudio) and maybe others will not be usable due to segmentation faults. To configure `cargo` for this, just add this to your `~/.cargo/config.toml`:
+
+```toml
+[build]
+rustflags = ["-C", "target-feature=-crt-static"]
+```
+
 ## Build and Install from Source
 
 ```shell