Provide precompiled gem for aarch64-linux-gnu

Author: andyundso

.github/workflows/ci.yml

@@ -15,6 +15,7 @@ jobs:
  - "x64-mingw-ucrt"
  - "x86_64-linux-gnu"
  - "x86_64-linux-musl"
+ - "aarch64-linux-gnu"
 
  name: cross-compile
  runs-on: ubuntu-22.04
@@ -324,6 +325,7 @@ jobs:
  platform:
  - "x86_64-linux-gnu"
  - "x86_64-linux-musl"
+ - "aarch64-linux-gnu"
 
  ruby-version:
  - "2.7"
@@ -338,6 +340,9 @@ jobs:
  docker_tag: "-alpine"
  bootstrap: "apk add -U build-base &&" # required to compile bigdecimal on Ruby 2.7
 
+ - platform: aarch64-linux-gnu
+ docker_platform: "--platform=linux/arm64"
+
  name: install-linux
  runs-on: ubuntu-22.04
  steps:
@@ -349,6 +354,10 @@ jobs:
  name: gem-${{ matrix.platform }}
  path: precompiled/gems
 
+ - name: Setup QEMU for docker
+ uses: docker/setup-qemu-action@v3
+ if: ${{ matrix.docker_platform }} != ''
+
  - run: |
  docker run --rm -v $PWD/precompiled:/precompiled -w /precompiled \
  ${{ matrix.docker_platform }} ruby:${{ matrix.ruby-version }}${{ matrix.docker_tag }} \

Rakefile

@@ -12,6 +12,7 @@ CrossLibraries = [
 ['x64-mingw32', 'mingw64'],
  ['x86_64-linux-gnu', 'linux-x86_64'],
  ['x86_64-linux-musl', 'linux-x86_64'],
+ ['aarch64-linux-gnu', 'linux-aarch64'],
 ].map do |platform, openssl_config|
 CrossLibrary.new platform, openssl_config
 end