Go to TogaWare.com Home Page.
GNU/Linux Desktop Survival Guide
by Graham Williams 		Google

Build Architecture Optimised Packages

next up previous contents index

The apt-build package, a front-end to apt-get, provides a general solution to build Debian packages tuned (or optimised) for your architecture. 

  $ wajig install apt-build
You will be asked for some options, and these go into /etc/apt/apt-build.conf: 

  build-dir = /var/cache/apt-build/build
  repository-dir = /var/cache/apt-build/repository
  Olevel = -O2
  march = -march=pentium4
  mcpu = -mcpu=pentium4
  options = " "

The built packages will be placed into /var/cache/apt-build/repository, an can be accessed with the standard Debian package tools by adding the following line to the top of /etc/apt/sources.list (which can be done during the installation of apt-build: 

  deb file:/var/cache/apt-build/repository apt-build main

You will need deb-src entries in your /etc/apt/sources.list file to be able to obtain the source packages (see Section 6.8.1).

Being a front-end to apt-get, your first apt-build command might be to update the list of known available packages (particularly if you have just added a deb-src entry to /etc/apt/sources.list), although the following is equivalent: 

  $ wajig update
You can then start building packages: 

  $ sudo apt-build install most
You can manage a collection of packages to be recompiled and installed instead of obtaining the default compiled versions. Create the file /etc/apt/apt-build.list to contain a list of such packages and then: 

  $ sudo apt-build world
One way to get a full list of installed packages is: 

  # dpkg --get-selections | awk '{if ($2 == "install") print $1}' \
    > /etc/apt/apt-build.list

Be sure to edit the list to remove, for example, gcc! Then a: 

  $ sudo apt-build world
will recompile and optimise all packages.

next up previous contents index
Copyright © 1995-2005
Support this endeavour through your purchase of the PDF Version