[gentoo-dev] Re: Prelinking in Gentoo and interactions with portage

[Stefan Jones <cretin@gentoo.org>]

patch: http://cvs.gentoo.org/~cretin/portage-prelink.patch
diffed against the latest portage.py

I think the patch included here is close to the final product, or at
least the principles involved. Some of it can still be polished a bit
more by the gurus, email me with any ideas plz!

Prelink features are only enabled if you have prelink in FEATURES in
make.conf. You also must have prelink installed at /usr/sbin/prelink
(the default location)

What it does:

On unmerges it uses prelink to calculate the md5sums.

On emerge a list of all files installed with the tokens "bin" or "lib"
in their path or name is made. (ie /bin/ls or /opt/something/bin/ls or
libblibble.la ) An attempt is then made to prelink these. This is dirty
but safe. Patches welcome for better code.

How to install:

patch /usr/lib/python2.2/site-packages/portage.py with this patch

/bin/cp -f portage.py /usr/lib/python2.2/site-packages/

/bin/rm -f /usr/lib/python2.2/site-packages/portage.py[co]

/usr/bin/python -c "import py_compile;
py_compile.compile('/usr/lib/python2.2/site-packages/portage.py')" 
/usr/bin/python -O -c "import py_compile;
py_compile.compile('/usr/lib/python2.2/site-packages/portage.py')"
			    	
add prelink to the FEATURES list and emerge prelink

Have fun!

-- 
Stefan Jones <cretin@gentoo.org>
Gentoo Linux


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