The system library `com_err` required by crate `afsr` was not found

Hey there! I have got another question. I went through `afsr` README and learnt that it is a personal project and hence the binary needs to be built from scratch. I haven't yet tried building it on my Windows machine. I'm trying to build it on my Mac but ran into issues with it. It required me to install `pkg_config` from brew which I did and now it says it cannot find `com_err`: ``` Caused by: process didn't exit successfully: `afsr/target/release/build/afsr-91abb1dc3981f0d7/build-script-build` (exit status: 101) --- stdout cargo:rerun-if-env-changed=COM_ERR_NO_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG_aarch64-apple-darwin cargo:rerun-if-env-changed=PKG_CONFIG_aarch64_apple_darwin cargo:rerun-if-env-changed=HOST_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG cargo:rerun-if-env-changed=COM_ERR_STATIC cargo:rerun-if-env-changed=COM_ERR_DYNAMIC cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC cargo:rerun-if-env-changed=PKG_CONFIG_PATH_aarch64-apple-darwin cargo:rerun-if-env-changed=PKG_CONFIG_PATH_aarch64_apple_darwin cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH cargo:rerun-if-env-changed=PKG_CONFIG_PATH cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_aarch64-apple-darwin cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_aarch64_apple_darwin cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_aarch64-apple-darwin cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_aarch64_apple_darwin cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR --- stderr thread 'main' panicked at build.rs:33:56: called `Result::unwrap()` on an `Err` value: pkg-config exited with status code 1 > PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 pkg-config --libs --cflags com_err The system library `com_err` required by crate `afsr` was not found. The file `com_err.pc` needs to be installed and the PKG_CONFIG_PATH environment variable must contain its parent directory. The PKG_CONFIG_PATH environment variable is not set. HINT: if you have installed the library, try setting PKG_CONFIG_PATH to the directory containing `com_err.pc`. note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace warning: build failed, waiting for other jobs to finish... ``` I'm here because I couldn't find much info about this. I wanted to try `my-avbroot-setup` before I proceed further with my automated build script and started to run into issues while doing so.