On Sun, Oct 18, 2015 at 4:14 PM, Nicholas Nethercote <n.netherc...@gmail.com
> wrote:

> On Sun, Oct 18, 2015 at 3:12 PM, Eric Rescorla <e...@rtfm.com> wrote:
> >
> > What's needed here is a dependency management system that
> > simply builds what's needed regardless of what's changed,
>
> Otherwise known as "a proper build system". glandium and co. have been
> working towards that for a long time. It's a big, difficult job. |mach
> build binaries| and |mach build faster| are temporary waypoints along
> the way that approximate "a proper build system" for a couple of
> common workflows. Eventually |mach build| should just do the right
> thing, no matter what files you've touched...
>
> > not more ways for the user to tell the build system "only rebuild some
> stuff".
>
> ... except that bholley and ehsan are asking for a way to override the
> dependency tracking and just rebuild particular directories.


I don't want to speak for bholley and ehsan, but when *I* run into this
problem it's because the build system isn't doing the right thing. If it
were, I wouldn't have to.

-Ekr
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