Re: [gentoo-user] package.provided

[Daniel Iliev <daniel.iliev@gmail.com>]

On Tue, 8 Jan 2008 20:23:58 +0200
Alan McKinnon <alan.mckinnon@gmail.com> wrote:

> On Tuesday 08 January 2008, Daniel Iliev wrote:
> > On Tue, 8 Jan 2008 15:11:09 +0200
--snip--
> Am I correct in saying you plan to emerge mplayer with a few extra 
> params and not much else customizing? In that case the mods you will 
> make are simple and need to be done just once. Then paste the same 
> changes into a new ebuild each time you want to upgrade
> 

Actually the changes I want to make are not so few. The whole story is
that several days ago a friend of mine pointed me to a very cool
front-end for mplayer: http://smplayer.sourceforge.net/ 
Unfortunately it can't be found in portage yet.

Since it works with the "plain" mplayer I decided to get rid of the GUI
part (gmplayer). The USE flag "-gtk" disables the GUI, but smplayer
couldn't work with the produced mplayer. When I compiled mplayer
manually with "--disable-gui", smplayer worked just fine.
Additionally I started playing around with the src and found that on my
system mplayer can hold any optimisation I force upon it and there are
no problems. :)
I have best results when it's compiled with "--enable-sse2" and no
other mxx, 3dnow etc. stuff. This way mplayer produces:
"CPUflags:  MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 1"
in the output.

Additionally I forced some gcc options on the source like this:

find . -type f -exec sed -i 's/ -O. //g; {} + 
find . -type f -exec sed -i 's/-mtune=\w*//g' {} +  
find . -type f -exec sed -i 's/-mcpu=\w*//g' {} + 
find . -type f -exec sed -i 's/march=\w*/march=athlon64 \-msse3
\-mfpmath=sse \-O3    \-pipe \-fomit-frame-pointer/g' {} + 

// Yes, it's brutal and it's a miracle that it works but what do I have
to loose? The worst case scenario is that I end up with broken src and
have to extract it again :) //

Now mplayer uses up to 20% less CPU which in my case is not
meaningless.

The only problem is to make portage forget about this package until the
next version is released. I thought package.provided is for this
purpose, but it doesn't work here as I expected.



> > Yes, I'm aware of EXTRA_ECONF and I use it via /etc/portage/bashrc.
> > ( explained w/ example by Mr. Bo Andresen: http://tinyurl.com/39c74x
> > ) It never caused problems here.
> 
> Interesting. I must find out more :-)


It's very handy. For example I don't need the innodb engine of mysql,
so my /etc/portage/bashrc reads:

==

case "$CATEGORY/$PN" in

	dev-db/mysql)

		EXTRA_ECONF="--enable-local-infile --without-innodb"
	;;

esac 

==

Unfortunately I couldn't manage to use it for solving the current
problem.


-- 
Best regards,
Daniel
-- 
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