Add Clang static analyzer (scan-build) to CI
Hello! From fast few days I have been using `scan-build` to uncover bugs in xfce projects and it's quite effective. Found multiple memory leaks, use-after-free etc. issues. It would be nice if we could add scan-build to CI itself thus any new code introducing the bug can be caught before merging. scan-build usage: https://clang-analyzer.llvm.org/scan-build.html Here's how we do it in wget2: https://gitlab.com/gnuwget/wget2/-/blob/master/.gitlab-ci.yml#L259 I suggest we do: ``` $ scan-build --force-analyze-debug-code --show-description --status-bugs -analyzer-config stable-report-filename=true -enable-checker valist,nullability,optin -o scan-build ./autogen.sh $AUTOGEN_OPTIONS $ scan-build --force-analyze-debug-code --show-description --status-bugs -analyzer-config stable-report-filename=true -enable-checker valist,nullability,optin -o scan-build make -j4 ``` On failure, artifacts will be in scan-build directory (See the above linked CI file) Thanks!
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