Iterating on one recipe (e.g. redbear-iwlwifi) forced a ~30-min re-churn every
rerun: the relibc-consumer invalidation (build/sysroot wipe + pkgar/target
deletion) re-cooked dozens of cached packages before reaching the edited one,
even when relibc was unchanged. Add REDBEAR_SKIP_ABI_STALENESS=1 to skip both
the layer-B build/sysroot clean and the layer-C invalidation loops. The
cookbook BLAKE3 dep-hash cache still re-cooks recipes whose sources changed, so
the edited package rebuilds while everything else stays cached — the rerun goes
straight to it. Safe only when relibc ABI is unchanged (documented + escape is
opt-in); unset to restore the stale-binary safety net when bumping relibc/base.
Documented in --help alongside REDBEAR_FORCE_TOOLCHAIN_RECOOK.
vasilito
a8d1f472b8