CI: ubuntu:24.04-container + källkodsfallback för gtk4-layer-shell

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitea/workflows/check.yaml

@@ -15,15 +15,29 @@ on:
 jobs:
   check:
     runs-on: ubuntu-latest
+    container: ubuntu:24.04
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
       - name: Install toolchain + GTK4 deps
         run: |
+          export DEBIAN_FRONTEND=noninteractive
           apt-get update -qq
-          apt-get install -y -qq curl build-essential pkg-config \
-            libgtk-4-dev libgtk4-layer-shell-dev
+          apt-get install -y -qq curl build-essential pkg-config git \
+            libgtk-4-dev meson ninja-build wayland-protocols libwayland-dev
+          # gtk4-layer-shell: paket om det finns, annars källkodsbygge
+          if ! apt-get install -y -qq libgtk4-layer-shell-dev; then
+            git clone --depth 1 https://github.com/wmww/gtk4-layer-shell.git /tmp/g4ls
+            meson setup /tmp/g4ls/build /tmp/g4ls \
+              -Dintrospection=false -Dvapi=false -Dexamples=false \
+              -Ddocs=false -Dtests=false
+            ninja -C /tmp/g4ls/build install
+            ldconfig
+            arch_dir=$(gcc -dumpmachine)
+            echo "PKG_CONFIG_PATH=/usr/local/lib/${arch_dir}/pkgconfig:/usr/local/lib/pkgconfig" >> "$GITHUB_ENV"
+            echo "LD_LIBRARY_PATH=/usr/local/lib/${arch_dir}:/usr/local/lib" >> "$GITHUB_ENV"
+          fi
           curl -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal \
             --component clippy
           echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"