build: allow the cleanup step to be non-fatal #505
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3e8962c (Clean up dep-info files from OUT_DIR, 2024-10-22) made the cleanup step a fatal operation when cleanup fails. Some filesystems (e.g. NFS v3) can run into timing issues under load where .nfs* dummy files can still exist for a short window of time after the probe command completes. This window is just large enough for a failure to occur in remove_all(). Add an environment variable that allows users to make the cleanup operation non-fatal.
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3e8962c (Clean up dep-info files from OUT_DIR, 2024-10-22) made the cleanup step a fatal operation when cleanup fails. Some filesystems (e.g. NFS v3) can run into timing issues under load where .nfs* dummy files can still exist for a short window of time after the probe command completes. This window is just large enough for a failure to occur in remove_all().
Add an environment variable that allows users to make the cleanup operation non-fatal.