ci: use clang 17 as the default clang version is too old

.github/scripts/install_deps.sh

@@ -13,6 +13,22 @@ os=$(uname -s)
 if [[ $os == Linux ]]; then
   sudo apt-get update
   sudo apt-get install -y attr build-essential cmake curl gettext libattr1-dev ninja-build unzip
+
+  if [[ $CC == clang ]]; then
+    DEFAULT_CLANG_VERSION=$(echo |  clang -dM -E - | grep __clang_major | awk '{print $3}')
+    CLANG_VERSION=17
+    if ((DEFAULT_CLANG_VERSION >= CLANG_VERSION)); then
+      echo "Default clang version is $DEFAULT_CLANG_VERSION, which equal or larger than wanted version $CLANG_VERSION. Aborting!"
+      exit 1
+    fi
+
+    wget https://apt.llvm.org/llvm.sh
+    chmod +x llvm.sh
+    sudo ./llvm.sh $CLANG_VERSION
+    sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$CLANG_VERSION 100
+    sudo update-alternatives --set clang /usr/bin/clang-$CLANG_VERSION
+  fi
+
   if [[ -n $TEST ]]; then
     sudo apt-get install -y locales-all cpanminus
   fi

.github/workflows/test.yml

@@ -32,6 +32,8 @@ jobs:
   lint:
     runs-on: ubuntu-22.04
     timeout-minutes: 10
+    env:
+      CC: clang
     steps:
       - uses: actions/checkout@v4
 
@@ -86,6 +88,8 @@ jobs:
   clang-analyzer:
     runs-on: ubuntu-22.04
     timeout-minutes: 20
+    env:
+      CC: clang
     steps:
       - uses: actions/checkout@v4
       - run: ./.github/scripts/install_deps.sh
@@ -304,6 +308,8 @@ jobs:
   build-types:
     runs-on: ubuntu-22.04
     timeout-minutes: 10
+    env:
+      CC: gcc
     steps:
       - uses: actions/checkout@v4
 
@@ -318,7 +324,7 @@ jobs:
           cmake --build .deps
 
       - name: Configure
-        run: cmake -B build -G "Ninja Multi-Config" -D CMAKE_C_COMPILER=gcc -D CI_BUILD=ON
+        run: cmake -B build -G "Ninja Multi-Config" -D CI_BUILD=ON
 
       - name: Release
         run: cmake --build build --config Release
@@ -332,6 +338,8 @@ jobs:
   with-external-deps:
     runs-on: ubuntu-22.04
     timeout-minutes: 10
+    env:
+      CC: gcc
     steps:
       - uses: actions/checkout@v4