fixed #14081 - fail builds in CI on CMake warnings

Author: firewave

.github/workflows/selfcheck.yml

@@ -177,7 +177,7 @@ jobs:
 
       - name: CMake (corpus / no test)
         run: |
-          cmake -S cppcheck-2.8 -B cmake.output.corpus -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTING=Off -DBUILD_GUI=ON -DUSE_QT6=On -DWITH_QCHART=ON -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_POLICY_VERSION_MINIMUM=3.5
+          cmake -S cppcheck-2.8 -B cmake.output.corpus -Werror=dev -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTING=Off -DBUILD_GUI=ON -DUSE_QT6=On -DWITH_QCHART=ON -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_POLICY_VERSION_MINIMUM=3.5
 
       - name: Generate dependencies (corpus)
         run: |