[Dev] Fwd: Re: [arch-dev-public] libdeps (was: ffmpeg 0.8 and x264)

[Nicolás Reynolds]

----- Forwarded message from Florian Pritz <bluewind at xinu.at> -----

> Date: Mon, 31 Oct 2011 15:52:02 +0100
> From: Florian Pritz <bluewind at xinu.at>
> To: arch-dev-public at archlinux.org
> Subject: Re: [arch-dev-public] libdeps (was: ffmpeg 0.8 and x264)
> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20111001
> 	Thunderbird/7.0.1
> 
> On 31.10.2011 15:04, Ionut Biru wrote:
> > Hi,
> > 
> > we didn't had a large rebuild for a long time now.
> > 
> > i the same time i pushed a new x264 as well.
> > 
> > happy compiling.
> > 
> > 
> 
> If you want to, you can try libdeps (previously called sodeps) with this
> rebuild.
> 
> Since pacman 4, makepkg will automatically add the library version to
> provide/depends entries ending in .so when writing .PKGINFO.
> 
> A quick example for readline:
> 
>  - In the readline PKGBUILD one would add "provides=(libreadline.so)".
> When building makepkg expands that to "libreadline.so=6-64". 6 is the
> library version (from the soname) and 64 is the architecture (64-bit).
> 
>  - Then one could add "depends=(libreadline.so)" in the bash PKGBUILD
> and makepkg would check all binaries in the final package, extract the
> version numbers of the needed libraries and create "libreadline.so=6-64".
> 
>  - When upgrading now, pacman will ensure that the libreadline.so
> dependency for bash is always met and it will complain if the library
> gets updated and bash hasn't yet been rebuilt.
> 
> This can also be handy to spot aur packages that will break when
> upgrading. (The warnings can be ignored by using the -d option in pacman)
> 
> 
> It will not break the PKGBUILD for older makepkg versions and it's also
> completely transparent to pacman. All the magic is done in makepkg.
> 
> 
> If you want to see which libraries a package links to or provides, you
> can use my scripts [1] [2].
> 
> In case something is unclear, just ask :)
> 
> 
> [1]: http://git.server-speed.net/bin/plain/find-libdeps.sh
> [2]: http://git.server-speed.net/bin/plain/find-libprovides.sh
> 
> -- 
> Florian Pritz
> 



----- End forwarded message -----

-- 
Salud!
Nicolás Reynolds,
xmpp:fauno at kiwwwi.com.ar
omb:http://identi.ca/fauno

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