name: Setup macOS environment
description: >-
  Installs necessary packages via Homebrew.

inputs: {} # nothing?

outputs: {} # nothing?

runs:
  using: composite

  steps:
    - name: brew
      shell: bash
      run: |
        brew install --quiet gmp libffi openssl@1.1 zlib autoconf automake libtool

    - name: Set ENV
      shell: bash
      run: |
        for lib in openssl@1.1 gmp; do
          CONFIGURE_ARGS="${CONFIGURE_ARGS:+$CONFIGURE_ARGS }--with-${lib%@*}-dir=$(brew --prefix $lib)"
        done
        echo CONFIGURE_ARGS="${CONFIGURE_ARGS}" >> $GITHUB_ENV