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NRSI: Computers & Writing Systems


You are here: Rendering > Technologies > Graphite
Short URL: http://scripts.sil.org/OOo_20_source

Building OpenOffice 2.0.0 from source with Graphite support

Tim Eves, 2005-11-02


These instructions are intended for software developers who want to build SIL.OpenOffice.org from scratch. If you just want to use this program, please download the prebuilt binaries from the Graphite in OpenOffice.org page. To make effective use of these instructions you should already known how to:
  • Build software from source on Linux or other Unix like OSes.
  • Apply patches to an unpatched body of source code.
  • Install extra developement pacakges and libraries on your OS that may be required.

Before you start

The source code patch below has been extensivily tested on gcc 3.3 and gcc 3.4 copmilers and is known to work as described below. However the attempts so far to build on systems (SuSE 10.0, Fedora 4 and Ubuntu 5.10) which use gcc 4.0 as their default compiler have produced linker related problems. Installing and building with the gcc-3.4 compiler on the systems mentioned does work as advertised, so for the time being you'll need that. If you are a gcc 4.0 expert and wish to fix these problems or know how to please get in contact with me.

Please send patches or enquires to: ?subject=Graphite%20in%20OpenOffice.org%20source'> 

Getting the source code

The full OpenOffice.org 2.0.0 source code is over 260MB, making it too big to mirror here, so I have provided just the patch file require to add Graphite support. Therefore the first step in building SIL.OpenOffice.org from source is to download the OpenOffice.org 2.0.0 source which is available from  OpenOffice.org 2.0.0 source.

Next you will need the patch file. The tar.bz2 archive contains the patch file and the config.log generated from the configure step used to build the packaged binaries

Source code patches and configure log for the OpenOffice 2.0.0 codebase.
Tim Eves, 2005-11-02
Download "OOo_2.0_source_patches.tar.bz2", tar.bz2 compressed file, 3MB [1963 downloads]

Building OpenOffice.org 2.0.0

Conventions used in this document

When ever you see typewriter typeface that refers to input, output or file, directory name. When commands and responses are shown the will appear in this style:

user:~> command options arguments

The user:~> part is an example shell prompt and should not be typed.

Apply the Graphite patch

First unpack the OpenOffice.org 2.0.0 source code and extract the patch file from the archive OOo_2.0_source.tar.bz2:
user:~> tar --extract --gzip --file=OOo_2.0.0_src.tar.gz
user:~> tar --extract --bzip2 --file=OOo_2.0_source_patches.tar.bz2
user:~> ls
SIL.OO2 source
Now apply the patch with the following commands:
user:~> cd OOo_2.0.0rc3_src
user:~> patch -p1 <../SIL.OO2 source/OOo_2.0.0-SIL.OOo.patch

Providing all went well you are now ready to build OpenOffice following the normal build process, which is described in detail at  OpenOffice.org for Developers. A basic build process is as follows:

Configuring the OpenOffice build environment

The configure process can be used to tell the OpenOffice.org build process what dependencies to pull in from the host system and which ones to build it's self, allowing you to create a version that is distro independent or highly distro specific. It also is where you tell the build environment where to find certain dependencies which may be in non-standard locations, such as Java. For example on SuSE systems it's important to use the option --with-jdk-home=$JAVA_HOME as the automatic discovery mechanism picks the wrong location causing errors much later in the build process.

user:~> cd config_office
user:~> ./configure [your options here]
For example SIL's release was built with this configure command:
user:~> ./configure --enable-libart --enable-libsn --disable-mozilla --disable-odk 
 --disable-qadevooo --enable-fontconfig --disable-gtk --disable-gnome-vfs 
 --enable-static-gtk --disable-kde --with-system-zlib --with-system-curl 

Bootstrapping the build environment

The OpenOffice.org build process uses a specialised version of make called dmake and it's own build scripts to manage it's build system. This system needs to be initialised by doing:
user:~> cd ..
user:~> ./bootstrap

These steps will configure and compile dmake

Setting the environment

Every time you use the OpenOffice.org build system and start a new shell you need to set the environment variables correctly, this is done by executing:
user:~> source LinuxIntelEnv.Set.sh

Performing a full build

Just type:
user:~> dmake

This will produce an optimised release version without debugging symbols included. As OpenOffice.org is such a large project the idea is once a full build has finished you selectively rebuild the modules you want to work on with debugging turned on.
After that has finished (which will take about 8-10 hours depending on your machine), you will find the an install set under instsetoo_native/unxlngi4.pro/OpenOffice/install/

Performing a module rebuild

The procedure for rebuilding any given module is:
user:~> cd <module name>
user:~> build
user:~> deliver
Or with debugging:
user:~> build debug=true
user:~> deliver
To perform a clean rebuild before you run build first do:
user:~> rm -rf unxlngi4.pro

The deliver command copies the results of the build process into the solver, a repository of intermediate build files which all modules depend on. If you forget this step any changes will not be seen if you rebuild other modules.

Producing an installation set

If you make any changes you will need to rebuild the instsetoo_native module to have those changes included in the packages it produces.

Changes the patch introduces

The patch applies several changes a few modules in the OpenOffice.org 2.0.0 code base, namely:

  • Adds the silgraphite module which contains standard Graphite source tarball and integrates it into OpenOffice.org's build environment.
  • Patches the scp2 module to include the Graphite library files in the packaging and installation process
  • Patches the instsetoo_native module to customise the Product name to SIL.OpenOffice.org.
  • Patches the sw module, or Writer, to better work with Graphite.
  • Patches the vcl module, which implements the system independent graphics layer and UI elements to:
    • Add classes for Graphite complex text rendering under the SalLayout class heirachy.
    • Instantiate those classes when a Graphite enabled font is detected.
    • A small change to the PDF Writer to fix a diacritic positioning bug.
    • A patch to the Freetype support to add a sanity check which fixes a crash due to impossible glyph bounding box areas.

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