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Fix Clang checker discovery hang without analyzer - #5183
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SamirRafiei wants to merge 1 commit into
Open
SamirRafiei wants to merge 1 commit into
SamirRafiei wants to merge 1 commit into
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Fixes #2670
Clang checker discovery could hang indefinitely when Clang was built without Static Analyzer support because the subprocess inherited an open stdin.
This change redirects stdin to DEVNULL for Clang informational commands, so the process receives EOF immediately instead of waiting for input.
A regression test was added to reproduce the hang before the fix and verify that checker discovery returns without blocking afterward.
Validation: