CI/GitHub: Add nopch and clang builds to linux workflow

.github/workflows/gcc-build.yml

@@ -1,41 +0,0 @@
-name: GCC
-
-on:
-  push:
-  pull_request:
-
-jobs:
-  build:
-    runs-on: ubuntu-22.04
-    steps:
-    - uses: actions/checkout@v5
-    - name: Set reusable strings
-      id: strings
-      shell: bash
-      run: |
-        echo "build-output-dir=${{ github.workspace }}/bin" >> "$GITHUB_OUTPUT"
-    - name: Dependencies
-      run: |
-        sudo apt-get update && sudo apt-get install -yq libboost-all-dev g++-11
-        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 100 --slave /usr/bin/g++ g++ /usr/bin/g++-11
-    - name: Setup
-      env:
-        CMAKE_BUILD_TYPE: Debug
-      run: >
-        cmake -S ${{ github.workspace }} -B ${{ steps.strings.outputs.build-output-dir }}
-        -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=1 -DUSE_SCRIPTPCH=1 -DTOOLS=1 -DSCRIPTS=dynamic -DSERVERS=1 -DNOJEM=0
-        -DCMAKE_C_FLAGS_DEBUG="-DNDEBUG" -DCMAKE_CXX_FLAGS_DEBUG="-DNDEBUG"
-        -DCMAKE_INSTALL_PREFIX=check_install -DBUILD_TESTING=1
-    - name: Build
-      run: |
-        cd bin
-        make -j 4 -k && make install
-    - name: Unit tests
-      run: |
-        cd bin
-        make test
-    - name: Check executables
-      run: |
-        cd ${{ github.workspace }}/check_install/bin
-        ./bnetserver --version
-        ./worldserver --version

.github/workflows/linux-build.yml

@@ -0,0 +1,76 @@
+name: Ubuntu x64
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - cc: gcc-13
+            cxx: g++-13
+            pch: 1
+            launcher: 
+          - cc: clang-17
+            cxx: clang++-17
+            pch: 1
+            launcher: 
+          - cc: clang-17
+            cxx: clang++-17
+            pch: 0
+            launcher: ccache
+    steps:
+    - uses: actions/checkout@v5
+    - name: Set reusable strings
+      id: strings
+      shell: bash
+      run: |
+        echo "build-output-dir=${{ github.workspace }}/bin" >> "$GITHUB_OUTPUT"
+        echo "ccache-key-prefix=ubuntu-${{ matrix.cc }}-${{ github.base_ref || github.ref_name }}" >> "$GITHUB_OUTPUT"
+    - name: Dependencies
+      run: |
+        sudo apt-get update && sudo apt-get install -yq ccache libboost-dev libboost-filesystem-dev libboost-locale-dev libboost-program-options-dev libboost-regex-dev libboost-thread-dev libssl-dev libreadline-dev zlib1g-dev libbz2-dev
+    - name: Restore nopch cache
+      id: ccache-restore
+      if: ${{ matrix.pch == '0' }}
+      uses: actions/cache@v4
+      with:
+        path: ${{ github.workspace }}/.ccache
+        key: ${{ steps.strings.outputs.ccache-key-prefix }}-${{ github.ref_name }}-${{ github.sha }}
+        restore-keys: |
+          ${{ steps.strings.outputs.ccache-key-prefix }}-${{ github.ref_name }}-
+          ${{ steps.strings.outputs.ccache-key-prefix }}-
+    - name: Setup
+      env:
+        CMAKE_BUILD_TYPE: Debug
+        CMAKE_C_COMPILER_LAUNCHER: ${{ matrix.launcher }}
+        CMAKE_CXX_COMPILER_LAUNCHER: ${{ matrix.launcher }}
+        CC: /usr/bin/${{ matrix.cc }}
+        CXX: /usr/bin/${{ matrix.cxx }}
+      run: >
+        cmake -GNinja -S ${{ github.workspace }} -B ${{ steps.strings.outputs.build-output-dir }}
+        -DWITH_WARNINGS=1 -DWITH_WARNINGS_AS_ERRORS=1 -DWITH_COREDEBUG=0 -DUSE_COREPCH=${{ matrix.pch }} -DUSE_SCRIPTPCH=${{ matrix.pch }} -DTOOLS=1 -DSCRIPTS=dynamic -DSERVERS=1 -DNOJEM=0
+        -DCMAKE_C_FLAGS_DEBUG="-DNDEBUG -g0" -DCMAKE_CXX_FLAGS_DEBUG="-DNDEBUG -g0"
+        -DCMAKE_INSTALL_PREFIX=check_install -DBUILD_TESTING=1
+    - name: Build
+      env:
+        CCACHE_BASEDIR: ${{ github.workspace }}
+        CCACHE_DIR: ${{ github.workspace }}/.ccache
+        CCACHE_CPP2: 1
+      run: |
+        ccache -z
+        cmake --build ${{ steps.strings.outputs.build-output-dir }}
+        ccache -s
+    - name: Unit tests
+      run: |
+        cmake --build ${{ steps.strings.outputs.build-output-dir }} --target test
+    - name: Check executables
+      run: |
+        cmake --install ${{ steps.strings.outputs.build-output-dir }}
+        cd ${{ github.workspace }}/check_install/bin
+        ./bnetserver --version
+        ./worldserver --version