[FFmpeg-cvslog] r24370 - trunk/Makefile

[Michael Niedermayer]

On Wed, Jul 21, 2010 at 06:33:12PM +0200, Michael Niedermayer wrote:
> On Wed, Jul 21, 2010 at 10:16:57AM -0300, Ramiro Polla wrote:
> > On Wed, Jul 21, 2010 at 9:26 AM, Diego Biurrun <diego at biurrun.de> wrote:
> > > On Tue, Jul 20, 2010 at 07:17:06PM -0300, Ramiro Polla wrote:
> > >> 2010/7/20 M?ns Rullg?rd <mans at mansr.com>:
> > >> > Ramiro Polla <ramiro.polla at gmail.com> writes:
> > >> >> On Tue, Jul 20, 2010 at 3:10 PM, mru <subversion at mplayerhq.hu> wrote:
> > >> >>>
> > >> >>> Log:
> > >> >>> Rerun configure when all*.c files have changed
> > >> >>
> > >> >> Ugh, does this mean 'make' might run 'configure' (like the autotools
> > >> >> do)? I find that particularly annoying. Isn't it possible to give an
> > >> >> error message instead?
> > >> >
> > >> > Where's the harm?
> > >>
> > >> Principle of least surprise? I expect configure to configure, make to
> > >> make, and make install to install. But if I'm the only one that finds
> > >> it annoying then don't bother, it doesn't matter that much...
> > >
> > > I specifically asked for this feature and I consider it essential.
> > > Of course you have learned the hard way that configure needs to be
> > > rerun every now and then, but I do not think this is expected behavior
> > > for anybody else.
> > >
> > > To have a build fail when the sources are perfectly valid is
> > > unacceptable, period.
> > 
> > Maybe I wasn't clear but I don't like make failing cryptically either.
> > I really appreciate the Makefile detecting that configure should be
> > re-run. My suggestion was that an error be printed such as "configure
> > must be re-run".
> 
> i also would prefer if make didnt run configure but printed an error message
> 
> as developer i somehow prefer tools to act in a simple and predictable way
> over tools that do everything they cannot proof to be unneeded.
> Its easier in the first case to convince the tools to just do what is
> actually needed and safe some time on rebuilds.

Besides what command line switches are used for configure in this automatic
rerun? Whichever they are they might not be what the user wanted when he
wanted to rerun configure next time.
And (redundantly) reruning configure can lead to minor changes to headers
that then in chain reaction cause alot more to be rebuild than needed

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
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