[MPlayer-cvslog] CVS: main configure, 1.1137, 1.1138 Makefile, 1.342, 1.343

[Diego Biurrun]

On Mon, Mar 06, 2006 at 10:28:14AM +0100, Jindrich Makovicka wrote:
> On 3/6/06, Diego Biurrun <diego at biurrun.de> wrote:
> > On Mon, Mar 06, 2006 at 08:06:14AM +0100, Jindrich Makovicka wrote:
> > > Diego Biurrun wrote:
> > > > On Sun, Mar 05, 2006 at 11:03:55AM +0100, Jindrich Makovicka CVS wrote:
> > > >
> > > >>Modified Files:
> > > >>    configure Makefile
> > > >>Log Message:
> > > >>use relative paths for libav* build
> > > >>
> > > >>absolute path in the command line can confuse ccache
> > > >
> > > > What were the problems with ccache?
> > >
> > > when compiling the same (or almost the same) revision, but in different
> > > directories, ccache sees it as different compilations, because the
> > > command line has changed. so libav* gets compiled all the time.
> >
> > I'm not sure I understand entirely, please elaborate.  This sounds like
> > a problem with ccache...
> 
> (AFAIK) Ccache computes a hash of the compilation from 3 parts:
> 
> 1) compiler binary
> 2) compiler command line
> 3) preprocessed compiler input
> 
> if you compile mplayer twice in directories with different names, 2)
> is different for libav*, so ccache doesn't find the result of the
> previous compilation and runs the compiler again.

You mean if you have two different MPlayer checkouts?  ccache should
pick this up the second time you compile anyway..

> > Please revert your commit unless you can come up with good arguments
> > that make me change my mind.
> 
> I'll be able to revert it when I get back home. Feel free to do it sooner.

That's soon enough.

Diego