MahiroOS-jhalfs/README.BLFS
2006-08-14 18:33:05 +00:00

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1. INTRODUCTION::
To automatize packages build from the BLFS book instructions is a huge
task. The BLFS book isn't linear, some package pages need to use a non
defaul layout, there are circular dependencies, several packages can be
installed on a non default prifix, build commands can change based on what
dependencies will be used, etc.
Said that, the goal of jhalfs is try to help you solving packages
dependencies and creating your own build scripts/Makefile. Some of the
auto-generated build scripts and Makefile could work "as is", but as a
general rule you will need to review and edit the scripts while reading
the book.
NOTE:: The code is still under development and may contains several bugs
2. USAGE::
Due the complexity of the BLFS book, the scripts/Mafile generation is
done in several steps:
2.1 INSTALLATION::
Run "make" to launch the menuconfig interface. Select the BLFS book
and it version. Then set the installation directory (default
$HOME/blfs_root) and the BLFS sources directory (default blfs-xml).
All required files will be placed in the installation directory and
BLFS XML sources will be checkout to the named sub-directory.
Installed files:
lib/* functions, xsl, and auto-generates dependencies tree files
README.BLFS this file
TODO developers notes
packages auto-generated file with packages info
alternatives.conf configuration files for alternative packages
envars.conf envars needed when running the build scripts
update_book.sh update the XML book sources and regenerate packages file
and GNOME and KDE dependencies tree
blfs-parser.sh generates linear BLFS books and build scripts
gen-makefile.sh generates Makefile
progress_bar.sh the Makefile progress bar
From now on, all the work must be done from inside the installation
root directory.
2.2 UPDATING BOOK SOURCES::
If using the SVN book version, from time to time you may want to update
the XML sources. To do that run "./update_book.sh"
2.3 PARSING THE BOOK::
Next step is to create a book and build scripts in dependencies build order
for a target package. A target package can be any of the ones listed in the
packages file. That is done using the blfs-parser.sh script, but we are trying
to make a menuconfig based system.
The script need three arguments:
package name as listed in packages file
dependencies level 1 for required,
2 for required an recommended
3 for required, recommended, and optional
sudo usage y if sudo will be used (you want build as a normal user)
n if sudo isn't needed (you want build as root)
For example:
./blfs-parser galeon 3 y
will create a directory named "galeon". Inside that directory you find a
directory named "HTML" that contains a galeon-based HTML book with all
dependencies in build order and a "scripts" directory with build scripts
that uses sudo for commands that need root priviledges.
There is also two other directories that contains files generated while
resolving dependencies trees.
Now is the time to review the generated book and scripts, making in the
scripts any changes you want to fit your needs. Scripts for aditional
packages (i.e., for non-BLFS packages) can be inserted in an easy way.
2.4 CREATING THE MAKEFILE
When the build scripts are ready to be run, the Makefile can be
created. Be sure that you cd into the "package" directory and run
../gen_makefile.sh
Review the Makefile and if all look sane, start the build.
(Text is needed for the installed packages tracking system and like)