i suggest a bash only makefile script then that spawns few instances of whatever only, i do such whatever overall systems a find printf to comparement is fairly fast, to estimate new files then a good gcc in one cmd done
On Fri, Nov 12, 2021, 14:22 Mischa Baars <mjbaars1977.bac...@gmail.com> wrote: > Hi Greg, > > It is how my makefiles work :) > > Do you realize how much time it takes to load the stat executable on all > source files and object files? Conditional expressions are already in > memory. I prefer using the mtime field, the atime field and conditional > expressions. > > Mischa. > > > On Fri, Nov 12, 2021 at 1:25 PM Greg Wooledge <g...@wooledge.org> wrote: > > > On Fri, Nov 12, 2021 at 10:36:01AM +0100, Mischa Baars wrote: > > > All of my makefiles only compile source files and link object files > that > > > are NEW, as in the modification timestamp is newer than OR EQUAL TO the > > > access timestamp, > > > > That's not how Makefiles work. > > > > Makefiles compare the mtimes of two files against each other. Source > > and target. If the source's mtime is greater than the target's mtime, > > then the target needs to be rebuilt. > > > > Most Linux distributions these days are disabling or half-disabling > > the atime field at the file system mount-option level, because of the > > tremendous inefficiency and wear on disks that it creates. > > > > >
