Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> writes: > I've got some WIP efforts in other areas to do that for some other > rules. > > The problem is that you need to "mkdir .shrapnel" to create a > ".shrapnel/revision.sp". So you need the ".shrapnel/revision.sp" to > depend on the ".shrapnel". > > Except you'll find that the naïve implementation of that fails, since > any file you create will bump the mtime of the containing directory, so > you'll keep re-making ".shrapnel/revision.sp" because ".shrapnel" > changed, because ".shrapnel/revision.sp" changed... We depend on GNU make anyway. Isn't its "order-only-prerequisites" feature what you exactly want to use for the above?
