PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH

[Omicronlawful]

I tried to use pango with rust. It needs the depndency installed so i added

- name: Install pango library
  run: sudo apt-get install -y libpango1.0-dev nasm

That works fine when i try to use rust.yaml, but it isnt working for this action. My guess is that it does not find libpango. It works with matrurin build on my machine, so the problem is the action

Install a sysroot for the target platform and configure it via
[480](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:487)
  PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH, or install a
[481](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:488)
  cross-compiling wrapper for pkg-config and set it via
[482](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:489)
  PKG_CONFIG environment variable.

warning: pkg-config has not been configured to support cross-compilation.
[458](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:465)

[459](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:466)
error: failed to run custom build command for `glib-sys v0.18.0 (https://github.com/gtk-rs/gtk-rs-core.git#aa4b78e1)`
[460](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:467)

[461](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:468)
Caused by:
[462](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:469)
  process didn't exit successfully: `/home/runner/work/test/test/target/release/build/glib-sys-da763739ba4249f1/build-script-build` (exit status: 1)
[463](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:470)
  --- stdout
[464](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:471)
  cargo:rerun-if-env-changed=GLIB_2.0_NO_PKG_CONFIG
[465](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:472)
  cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS_armv7-unknown-linux-gnueabihf
[466](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:473)
  cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS_armv7_unknown_linux_gnueabihf
[467](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:474)
  cargo:rerun-if-env-changed=TARGET_PKG_CONFIG_ALLOW_CROSS
[468](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:475)
  cargo:rerun-if-env-changed=PKG_CONFIG_ALLOW_CROSS
[469](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:476)
  cargo:rerun-if-env-changed=PKG_CONFIG_armv7-unknown-linux-gnueabihf
[470](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:477)
  cargo:rerun-if-env-changed=PKG_CONFIG_armv7_unknown_linux_gnueabihf
[471](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:478)
  cargo:rerun-if-env-changed=TARGET_PKG_CONFIG
[472](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:479)
  cargo:rerun-if-env-changed=PKG_CONFIG
[473](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:480)
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_armv7-unknown-linux-gnueabihf
[474](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:481)
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_armv7_unknown_linux_gnueabihf
[475](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:482)
  cargo:rerun-if-env-changed=TARGET_PKG_CONFIG_SYSROOT_DIR
[476](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:483)
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR
[477](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:484)
  cargo:warning=pkg-config has not been configured to support cross-compilation.
[478](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:485)

[479](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:486)
  Install a sysroot for the target platform and configure it via
[480](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:487)
  PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH, or install a
[481](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:488)
  cross-compiling wrapper for pkg-config and set it via
[482](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:489)
  PKG_CONFIG environment variable.
[483](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:490)
warning: build failed, waiting for other jobs to finish...
[484](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:491)
💥 maturin failed
[485](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:492)
  Caused by: Failed to build a native library through cargo
[486](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:493)
  Caused by: Cargo build finished with "exit status: 101": `PYO3_CONFIG_FILE="/home/runner/work/test/test/target/maturin/pyo3-config-armv7-unknown-linux-gnueabihf-3.7.txt" "cargo" "rustc" "--target" "armv7-unknown-linux-gnueabihf" "--message-format" "json-render-diagnostics" "--manifest-path" "/home/runner/work/test/test/Cargo.toml" "--release" "--lib"`
[487](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:494)
Error: The process '/usr/bin/docker' failed with exit code 1
[488](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:495)
    at ExecState._setResult (/home/runner/work/_actions/PyO3/maturin-action/v1/dist/index.js:1702:25)
[489](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:496)
    at ExecState.CheckComplete (/home/runner/work/_actions/PyO3/maturin-action/v1/dist/index.js:1685:18)
[490](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:497)
    at ChildProcess.<anonymous> (/home/runner/work/_actions/PyO3/maturin-action/v1/dist/index.js:1579:27)
[491](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:498)
    at ChildProcess.emit (node:events:527:28)
[492](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:499)
    at maybeClose (node:internal/child_process:1092:16)
[493](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:500)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:302:5)
[494](https://github.com/Omicronlawful/test/actions/runs/5181785241/jobs/9337772301#step:5:501)
Error: The process '/usr/bin/docker' failed with exit code 1

[messense]

As you can see in the error message, maturin-action runs your build in docker container to ensure manylinux compatibility.

You just need to install libpango in the docker container, you can use before-script-linux option of maturin-action to do so. Do note that apt-get install libpango1.0-dev might result in a higher manylinux version or non-manylinux compatible wheel.

[Omicronlawful]

@messense its a pain to compile pango from source, so I wanted to use the package installer to install it. As far as I understood is that the Linux builds are compiled with a Ubuntu container, macOS with macOS… the problem is the dependency needs to be installed with the right architecture. Is there an option to run the dependency installer for each target. Linux has https://unix.stackexchange.com/questions/115272/download-package-via-apt-for-another-architecture#115273 this option to install the dependencies. Macos has(brew fetch --force --bottle-tag=arm64_big_sur boost
brew install $(brew --cache --bottle-tag=arm64_big_sur boost). I dont know about windows, but there most likly are options.

Is there a method to get the dependecies for each target?

[Omicronlawful]

Or an example how to link c libraries would be great

[messense]

Is there an option to run the dependency installer for each target

It's out of scope for this project.

You can bring your own docker images with dependencies pre-installed and pass it to maturin-action using the container option.

Or build on the host Linux environment by passing container: off to maturin-action.

[Omicronlawful]

I’m closing this, but an example how to use a custom container would be great. None of the examples implement this feature

[messense]

Welcome to open source, if you have an example of that, feel free to send a pull request to add it to readme.