263 lines
9.3 KiB
Plaintext
263 lines
9.3 KiB
Plaintext
HOW TO ADD CUSTOM SCRIPTS TO THE JHALFS MAKEFILE
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Normally JHALFS creates a Makefile containing only those scripts found in
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the {,B}LFS books. An automated construction tool cannot predict the
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needs of every individual and requests are made "Can you add xxxx package".
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Rather than adding numerous package scripts and switches for each request it
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was easier to add a tool for the user(s) to code their own package needs.
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There are two areas that can be customized: how the base system is built
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and what additional configurations and packages your hardware requires to be
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able to boot and run. Each of those areas are handled in a different way.
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BASE SYSTEM CUSTOMIZATION
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There are two ways to alter how the base system will be built:
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- Using a working copy of the book sources and editing the XML files.
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This is the way used by book editors to test packages upgrades,
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command changes, build order changes. etc.
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This method requires you know very well the book sources and what
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files need be edited. It will not be discussed here.
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- Editing the generated build scripts to make any change you want.
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This is the method discussed below.
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EDITING THE BASE SCRIPTS
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To begin with, the build scripts should be generated with book defaults. To
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do that, configure jhalfs activating any option you want included, but do not
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select "Run the Makefile" option.
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Under the ${BUILD_DIR}/${SCRIPT_ROOT}/$COMMANDS directory
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(using the defaults values to do an LFS build, that directory name is
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/mnt/build_dir/jhalfs/lfs-commands) you will find the default build scripts.
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If all you want is modify, add, or remove some command from a package
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installation, for example to change its ./configure line, just edit the related
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script. If changing or adding a patch, be sure to copy the new patch to the
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${BUILD_DIR}/sources directory. When done, run 'make' from inside the
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${BUILD_DIR}/${SCRIPT_ROOT} directory.
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REPLACING OR INSERTING PACKAGES AND CHANGING BUILD ORDER
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To remove a package from the system, just remove its script(s).
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To change the version of some package, or to build a newer or older version
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than that in the book, edit ${BUILD_DIR}/${SCRIPT_ROOT}/pkg_tarball_list to
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change its tarball name and place the new tarball in the ${BUILD_DIR}/sources
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directory.
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To replace a package by an equivalent one, rename the replaced package script
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to reflect the new package name (for example, 102-man-db -> 102-man), edit the
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script to make the required commands changes, place the new tarball in the
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${BUILD_DIR}/sources directory, and edit ${BUILD_DIR}/${SCRIPT_ROOT}/pkg_tarball_list
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file to replace the removed package tarball name by the new package tarball
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name.
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To change the build order, rename the scripts changing the first 3-digits
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string until they are sorted in the way you want.
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To insert a new package, for example to build Cracklib in order to build
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Shadow with Cracklib support, you should first decide before what package it
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needs to be installed, in this example 107-shadow. Then create a new script
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containing the needed commands, using an existing one as template, and name it
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with the same 3-digits string used for that mentioned default package, but
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adding another 1-digit string. In our example, the new script to build Cracklib
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before Shadow will be named 107-1-cracklib. This naming scheme allows inserting
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up to 10 scripts before each of the existing scripts. Place the tarball for
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the new package and required patches, if any, in ${BUILD_DIR}/sources and edit
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${BUILD_DIR}/${SCRIPT_ROOT}/pkg_tarball_list to add the tarball name for that
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package.
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When ready, launch again the jhalfs configuration interface. Make sure that
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exactly the same options are selected as when generating the default build
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scripts. Be sure that "Rebuild files" is unselected and select "Run the
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Makefile" if you want. Then select "Rebuild the Makefile". This will create a
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new Makefile based on the changes you made to the build scripts.
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ADDING POST-SYSTEM BUILD CONFIGURATION FILES AND EXTRA PACKAGES
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The installation of BLFS packages is handled via blfs-tool and activated
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when you select the appropriate menu option. See README and README.BLFS for
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more info.
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The feature described below was added so users could install remaining
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configuration files, build the packages necessary to access the Internet
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or to support specific hardware, or to install basic utilities that are
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needed from the beginning, and was not intended to replace the BLFS
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install system.
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LAYOUT
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A new directory has been added to JHALFS tree which contains the
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configuration scripts and a few examples. A switch has been added to the
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configuration file which enables/disables the inclusion of custom scripts.
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custom
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/config <-- where to put your scripts.
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/examples <-- a few example scripts
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template <-- ALL scripts MUST look like this
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NOTE::: You are responsible for including all dependencies and ensuring they
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are built in the right order.
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1. To add a package to the final JHALFS Makefile you must first create a file
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in the custom/config directory. The directory custom/config may need
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to be created first.
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**All config files MUST follow the naming convention, xxx-PKG, where xxx
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is the order number and PKG is the name of the package. The file naming
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format is important as it defines the build order. The example shown
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below has an order number 950 and log files will list in alphabetical
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order in the /logs directory after blfs-tools scripts.
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The simplest method is to copy the template file into the config directory
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and rename it.
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2. Populate the variables with the necessary values.
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Variable function is self explanatory. PATCH variables must be
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numbered, starting at PATCH1 (up to PATCH10). If the md5 checksum value
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is known, it can be added after the URL as in (quotes needed):
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PATCH1="http://patch-host/patch-path xxxxxxx..."
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3. Build commands
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If the package you want to include is found in the BLFS
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book then you only need to copy/paste the commands between the xEOFx
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text, otherwise you will need to define the commands yourself.
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NOTE::: This script you just created is not usable directly but contains
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all the information necessary for jhalfs to create a build script
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and an entry in the jhalfs Makefile.
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4. As mentioned previously the build order is dictated by the 3 digit number
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in the file name. If a package has dependencies it must be numerically
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larger than the dependency files.
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e.g. The package mc has glib as a dependency, so the build order is:
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950-glib
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951-mc
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5. A config file for BLFS-bootscripts is already created as 999-blfs_bootscripts.
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If a package requires a bootscript to be installed add the cmd to this
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file and NOT in the package script. The gpm script is included as an
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example of patch file and the need for a blfs bootscript.
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EXAMPLES
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Other examples can be found in custom/examples. They are dated and
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unmaintained, but can be useful for creating your own scripts.
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#--------- GLIB example -----------
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#
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# Filename syntax xxx-PKG ie. 950-glibc
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# Create a file in the custom/config directory
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# Populate the file using the following script as an example
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#
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PKG="glib"
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PKG_VERSION="1.2.10"
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PKG_FILE="glib-1.2.10.tar.gz"
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URL="http://gd.tuwien.ac.at/graphics/gimp/gtk/v1.2/${PKG_FILE}"
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MD5="6fe30dad87c77b91b632def29dd69ef9"
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# The following code removes previously defined PATCHx variables
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for i in PATCH{1..10}; do
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unset $i
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done
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# Patches are named PATCH[1..10]
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# This information is used to download the patch only
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PATCH1="http://www.linuxfromscratch.org/patches/blfs/svn/glib-1.2.10-gcc34-1.patch 0077a1cce5e8a2231ac5a9b08c6263ba"
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# NOTE::
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# The convoluted scheme used to write out a temporary file is
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# a work-around for embedded single and double quotes.
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( cat << "xEOFx"
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patch -Np1 -i ../glib-1.2.10-gcc34-1.patch &&
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./configure --prefix=/usr &&
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make
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make install &&
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chmod -v 755 /usr/lib/libgmodule-1.2.so.0.0.10
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xEOFx
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) > tmp
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#--------- GPM example -----------
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PKG="gpm"
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PKG_VERSION="1.20.1"
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PKG_FILE="gpm-1.20.1.tar.bz2"
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URL="ftp://arcana.linux.it/pub/gpm/gpm-1.20.1.tar.bz2"
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MD5="2c63e827d755527950d9d13fe3d87692"
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for i in PATCH{1..10}; do
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unset $i
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done
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PATCH1=" http://www.linuxfromscratch.org/patches/blfs/svn/gpm-1.20.1-segfault-1.patch"
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PATCH2=" http://www.linuxfromscratch.org/patches/blfs/svn/gpm-1.20.1-silent-1.patch"
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( cat << "xEOFx"
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patch -Np1 -i ../gpm-1.20.1-segfault-1.patch &&
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patch -Np1 -i ../gpm-1.20.1-silent-1.patch &&
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./configure --prefix=/usr --sysconfdir=/etc &&
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LDFLAGS="-lm" make
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make install &&
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cp -v conf/gpm-root.conf /etc &&
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ldconfig
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# The normal cmd to install the boot script for gpm
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# --- PUT THIS CMD INSIDE 999-blfs_bootscripts
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#make install-gpm
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cat > /etc/sysconfig/mouse << "EOF"
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# Begin /etc/sysconfig/mouse
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MDEVICE="/dev/psaux"
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PROTOCOL="imps2"
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GPMOPTS=""
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# End /etc/sysconfig/mouse
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EOF
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xEOFx
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) > tmp
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#--------- CMDS ONLY example -----------
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# This is an example of a self contained cmd script
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# There are no referenced to a package or package dir.
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# This method is useful for creating user files/profiles/etc
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# at build time.
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PKG=""
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PKG_VERSION=""
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PKG_FILE=""
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URL=""
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MD5=""
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for i in PATCH{1..10}; do
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unset $i
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done
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PATCH1=""
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( cat << "xEOFx"
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echo "JUST A USELESS TRACE"
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xEOFx
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) > tmp
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