CI: add Alpine multi-platform CI

Signed-off-by: Rosen Penev <[email protected]>

.github/workflows/on_PR_meson.yaml

@@ -7,6 +7,28 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  Alpine:
+    runs-on: ubuntu-20.04
+    name: Linux-deps=${{matrix.deps}}-${{matrix.platform}}
+    strategy:
+      matrix:
+        deps: ['enabled', 'disabled']
+        platform: ['x86','armhf','armv7','aarch64','ppc64le','riscv64','s390x']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jirutka/setup-alpine@v1
+        with:
+          branch: edge
+          arch: ${{matrix.platform}}
+          packages: >
+            build-base meson ninja pkgconf brotli-dev curl-dev expat-dev gtest-dev inih-dev zlib-dev
+      - name: Install meson
+        run: python3 -m pip install meson ninja
+      - name: Compile and Test
+        run: |
+          meson setup "${{github.workspace}}/build" -Dauto_features=${{matrix.deps}} -Dwarning_level=3
+          meson compile -C "${{github.workspace}}/build"
+          meson test -C "${{github.workspace}}/build"
   Ubuntu:
     runs-on: ubuntu-20.04
     name: Linux-GCC${{matrix.cxx}}-deps=${{matrix.deps}}