use libc++ in conjunction with Clang in CI

Author: firewave

.github/workflows/asan.yml

@@ -55,6 +55,7 @@ jobs:
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
           sudo ./llvm.sh 22
+          sudo apt-get install -y libc++-22-dev
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -72,9 +73,19 @@ jobs:
           python3 -m pip install pytest-xdist
           python3 -m pip install psutil
 
+      # TODO: enable libc++
+      # currently fails to link the GUI tests
+      #
+      # /usr/bin/ld: CMakeFiles/test-projectfile.dir/__/__/projectfile.cpp.o: in function `ProjectFile::readSuppressions(QXmlStreamReader&)':
+      # /home/runner/work/cppcheck/cppcheck/gui/projectfile.cpp:628: undefined reference to `QString::toStdString() const'
+      # /usr/bin/ld: /home/runner/work/cppcheck/cppcheck/gui/projectfile.cpp:632: undefined reference to `QString::toStdString() const'
+      # /usr/bin/ld: /home/runner/work/cppcheck/cppcheck/gui/projectfile.cpp:637: undefined reference to `QString::toStdString() const'
+      # /usr/bin/ld: CMakeFiles/test-projectfile.dir/__/__/projectfile.cpp.o: in function `ProjectFile::getCheckingSuppressions() const':
+      # /home/runner/work/cppcheck/cppcheck/gui/projectfile.cpp:778: undefined reference to `QString::toStdString() const'
+      # clang++-22: error: linker command failed with exit code 1 (use -v to see invocation)
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_ADDRESS=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+              cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_ADDRESS=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On -DUSE_LIBCXX=Off -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-22
           CXX: clang++-22

.github/workflows/clang-tidy.yml

@@ -44,7 +44,7 @@ jobs:
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
           sudo ./llvm.sh 22
-          sudo apt-get install -y clang-tidy-22
+          sudo apt-get install -y libc++-22-dev clang-tidy-22
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -61,7 +61,7 @@ jobs:
 
       - name: Prepare CMake
         run: |
-          cmake -S . -B cmake.output -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DCPPCHK_GLIBCXX_DEBUG=Off -DWARNINGS_ARE_ERRORS=On
+          cmake -S . -B cmake.output -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DCPPCHK_GLIBCXX_DEBUG=Off -DWARNINGS_ARE_ERRORS=On -DUSE_LIBCXX=On
         env:
           CC: clang-22
           CXX: clang++-22

.github/workflows/tsan.yml

@@ -54,6 +54,7 @@ jobs:
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
           sudo ./llvm.sh 22
+          sudo apt-get install -y libc++-22-dev
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -73,7 +74,7 @@ jobs:
 
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_THREAD=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_THREAD=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On-DUSE_LIBCXX=On -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-22
           CXX: clang++-22

.github/workflows/ubsan.yml

@@ -54,6 +54,7 @@ jobs:
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
           sudo ./llvm.sh 22
+          sudo apt-get install -y libc++-22-dev
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -73,7 +74,7 @@ jobs:
 
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_UNDEFINED=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DBUILD_TRIAGE=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_UNDEFINED=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_COMPILE_WARNING_AS_ERROR=On-DUSE_LIBCXX=On -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-22
           CXX: clang++-22