Cross-compiling Rust for Pinephone

[ElusivePine]

Hello,
has anybody successfully cross-compiled a gtk application for the Pinephone? I was able to cross-compile a basic hello-world example but compiling the examples from the Relm crate gave me a bunch of errors. This my first time cross-compiling so I feel like I might be missing something obvious. I am running Arch Linux on my host and the errors I am getting are:

Code:

= note: /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgtk-3
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgdk-3
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lz
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lpangocairo-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lpango-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lharfbuzz
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -latk-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo-gobject
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgdk_pixbuf-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgio-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -latk-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgdk-3
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lz
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lpangocairo-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lpango-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lharfbuzz
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgdk_pixbuf-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo-gobject
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lpango-1.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lharfbuzz
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgdk_pixbuf-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgio-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo-gobject
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lcairo
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lgobject-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
          /usr/lib/gcc/aarch64-linux-gnu/10.1.0/../../../../aarch64-linux-gnu/bin/ld: cannot find -lglib-2.0
         
          collect2: error: ld returned 1 exit status
          error: aborting due to previous error
          error: could not compile `relm-examples`.