Compiling from macOS to Linux failing with openssl

[alper]

I'm using the exact example and it takes a long time before it gives me:

error: builder for '/nix/store/ybs7q7w1vr7prv4fpahz82d8fab1ckhi-cuppings-deps-0.1.0.drv' failed with exit code 101;
       last 10 log lines:
       >   and include information about your system as well as this message.
       >
       >   $HOST = aarch64-apple-darwin
       >   $TARGET = aarch64-unknown-linux-gnu
       >   openssl-sys = 0.9.80
       >
       >   ', /nix/store/p8n62bg6q5wyff7g3pyphy3cx4xyyfww-dependencies/openssl-sys-0.9.80/build/find_normal.rs:191:5
       >   note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       > warning: build failed, waiting for other jobs to finish...
       > [naersk] cargo returned with exit code 101, exiting

Is it possible to fix this or should I not be trying this at all?

[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/cross-compile-rust-from-m1/27879/7

[figsoda]

Maybe try adding pkg-config to nativeBuildInputs and openssl to buildInputs. Please post the nix expression (and rust project) you are working with

[alper]

Hi,

Here's the Nix:

I added the parameters based on this documentation: https://github.com/nix-community/naersk#buildpackages-parameters

{
  inputs = {
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    flake-utils.url = "github:numtide/flake-utils";
    naersk = {
      url = "github:nix-community/naersk";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixpkgs.url = "nixpkgs/nixos-unstable";
  };

  outputs = { self, fenix, flake-utils, naersk, nixpkgs }:
    flake-utils.lib.eachDefaultSystem (system: {
      packages.default =
        let
          pkgs = nixpkgs.legacyPackages.${system};
          target = "aarch64-unknown-linux-gnu";
          toolchain = with fenix.packages.${system}; combine [
            minimal.cargo
            minimal.rustc
            targets.${target}.latest.rust-std
          ];
        in
          (naersk.lib.${system}.override {
            cargo = toolchain;
            rustc = toolchain;
          }).buildPackage {
            src = ./.;

            nativeBuildInputs = [ pkgs.pkg-config ];
            buildInputs = [ pkgs.openssl ];

            CARGO_BUILD_TARGET = target;
            CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER =
            let
              inherit (pkgs.pkgsCross.aarch64-multiplatform.stdenv) cc;
            in
              "${cc}/bin/${cc.targetPrefix}cc";
          };
    });
}

The Rust isn't public but here's the Cargo.toml:

[package]
name = "cuppings"
version = "0.1.0"
edition = "2021"

[profile.dev]
split-debuginfo = "unpacked"

[dependencies]
dotenv = "0.15.0"
serde_json = "1.0.96"
reqwest = { version = "0.11.16", features = ["blocking", "json"] }
axum = "0.6.16"
hyper = { version = "0.14.26", features = ["full"] }
tokio = { version = "1.21.2", features = ["full"] }
tower = "0.4.13"
lazy_static = "1.4.0"
sea-orm = { version = "0.11.2", features = ["sqlx-sqlite", "runtime-tokio-native-tls", "macros", "debug-print"] }
anyhow = "1.0.70"
serde = "1.0.160"
tower-http = { version = "0.3.4", features = ["cors", "fs", "trace"] }
form_urlencoded = "1.1.0"
tracing-subscriber = "0.3.17"
askama = { version = "0.12.0", features = ["serde-json"] }
tracing = "0.1.36"

[alper]

It errors on sqlite:

error: builder for '/nix/store/nc57i86cr4rgb3s606pvdg4v4banq9lq-cuppings-deps-0.1.0.drv' failed with exit code 101;
       last 10 log lines:
       >   exit status: 1
       >
       >   --- stderr
       >
       >
       >   error occurred: Command "clang" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "--target=aarch64-unknown-linux-gnu" "-DSQLITE_CORE" "-DSQLITE_DEFAULT_FOREIGN_KEYS=1" "-DSQLITE_ENABLE_API_ARMOR" "-DSQLITE_ENABLE_COLUMN_METADATA" "-DSQLITE_ENABLE_DBSTAT_VTAB" "-DSQLITE_ENABLE_FTS3" "-DSQLITE_ENABLE_FTS3_PARENTHESIS" "-DSQLITE_ENABLE_FTS5" "-DSQLITE_ENABLE_JSON1" "-DSQLITE_ENABLE_LOAD_EXTENSION=1" "-DSQLITE_ENABLE_MEMORY_MANAGEMENT" "-DSQLITE_ENABLE_RTREE" "-DSQLITE_ENABLE_STAT2" "-DSQLITE_ENABLE_STAT4" "-DSQLITE_SOUNDEX" "-DSQLITE_THREADSAFE=1" "-DSQLITE_USE_URI" "-DHAVE_USLEEP=1" "-D_POSIX_THREAD_SAFE_FUNCTIONS" "-DHAVE_ISNAN" "-DHAVE_LOCALTIME_R" "-DSQLITE_ENABLE_UNLOCK_NOTIFY" "-o" 
"/private/tmp/nix-build-cuppings-deps-0.1.0.drv-1/dummy-src/target/aarch64-unknown-linux-gnu/release/build/libsqlite3-sys-372958cdc8356848/out/sqlite3/sqlite3.o" "-c" "sqlite3/sqlite3.c" with args "clang" did not execute successfully (status code exit status: 1).

[dpc]

You can use -L (like nix build -L ...) to capture full output. Oftentimes 10 last lines is not enough to tell what's wrong.

[rvolosatovs]

@alper make sure to set HOST_CC and HOST_AR, like so: https://github.com/rvolosatovs/nixify/blob/c06d74a4cebc2a149bef2e9237a9a08c135cad22/lib/rust/mkAttrs.nix#L320-L321