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 (disabled by default) the experimental VLC avmedia backend with: VLC="yes" 2. disable (enabled by default) use of avahi with: AVAHI="no" 3. 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, LOLOANGS="de" sh LibreOffice would build LibreOffice with support for german and US english languages.