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LibreOffice is a powerful office suite; its clean interface and powerful tools
let you unleash your creativity and grow your productivity. LibreOffice embeds
several applications that make it the most powerful Free & Open Source Office
suite on the market: Writer, the word processor, Calc, the spreadsheet
application, Impress, the presentation engine, Draw, our drawing and
flowcharting application, Base, our database and database frontend,
and Math for editing mathematics.
This SlackBuild builds the entire project from its source code. In seeking a
fully functional LibreOffice, most optional features are included by default.
Build time environment variables that may set to vary features are as follows:
1. enable the experimental VLC avmedia backend (disabled by default) with:
VLC="yes"
This requires the vlc package (available from SBo) to be installed.
2. enable avahi support (disabled by default) with:
AVAHI="yes"
This requires the avahi package (available from SBo) to be installed.
3. disable kde4 support (enabled by default) with:
KDE4="no"
4. support additional languages by overriding the LOLANGS variable, whose
default setting is LOLANGS="de es fr id it ja nl vi zh-CN". Note that en-US
is always added to whatever LOLANGS is set. Thus building with, for example,
LOLANGS="de" sh LibreOffice
would build LibreOffice with support for german and US english languages.
Additionally, setting LOLANGS="ALL" will build in support for all available
languages.
5. A number of Java Development Kits are suitable for building LibreOffice.
The default JDK for this SlackBuild is openjdk. Others may be chosen by
setting the JAVA environment variable when running the SlackBuild. Recognised
values are openjdk (the default, not explicitly required), openjdk8 and jdk
e.g. JAVA=jdk (to use SBo jdk package with Oracle binary version). Using an
alternate JDK will require presence of the appropriate package when building
LibreOffice. Since the apache-ant package is already required by openjdk,
hence openjdk8, its listing in the REQUIRES field is redundant in these cases.
However it remains listed to accomodate the case of JAVA=jdk, in which the
apache-ant package is needed to build LibreOffice.
Finally, setting JAVA=no will build LibreOffice without any Java support.
6. The number of parallel make jobs used by the LibreOffice build system defaults
to the number of available cpu cores. If the MAKEFLAGS environment variable
contains the -j option e.g.
MAKEFLAGS=-j6
then the SlackBuild will pass this to the LibreOffice build system
(via its --with-parallelism configure option). The number of parallel make jobs
is further controlled with the PARALLEL environment varaiable e.g.
PARALLEL=1 sh LibreOffice.SlackBuild
which would limit building to a single make process, overriding any value set
with the -j option in MAKEFLAGS.
7. Use of ccache during building is turned off by default to save disk space (and
possible build failure due to lack of disk space). It may be reinstated by
setting the USE_CCACHE environment to "yes" e.g.
USE_CCACHE=yes sh LibreOffice.SlackBuild
For performance reasons, this Slackbuild sets GTK2 to be used at runtime.
Alternatives (gen, gtk3, kde4) may still be used by setting SAL_USE_VCLPLUGIN
in the user's runtime environment.
Spell checking of documents at runtime requires installation of a suitable
wordlist for the language concerned. This can be achieved in either of two
ways:
1. Build & install hunspell-en (or hunspell-es, hunspell-pl) from SBo
2. Search for the desired language dictionary at:
http://extensions.libreoffice.org/extension-center?getCategories=Dictionary
and download the relevant file e.g. dict-en.oxt. Now open LO's extension
manager and press the "Add..." button which will open a file browser with which
to locate and open the downloaded .oxt file. The new dictionary will now appear
in the Extension Manager.
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