Suggested by Caleb Ristvedt <caleb.ristvedt@cune.org>. * nix/libstore/optimise-store.cc (LocalStore::optimisePath_): Save errno from 'rename' before calling 'unlink'.
Suggested by Caleb Ristvedt <caleb.ristvedt@cune.org>. * nix/libstore/optimise-store.cc (LocalStore::optimisePath_): Save errno from 'rename' before calling 'unlink'.