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Breadcrumbs go here --> <li>Qt for Embedded Linux Requirements</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <link rel="prev" href="requirements.html" /> <p class="naviNextPrevious headerNavi"> <a class="prevPage" href="requirements.html">General Qt Requirements</a> </p><p/> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#building-qt-for-embedded-linux-with-uclibc">Building Qt for Embedded Linux with uclibc</a></li> <li class="level1"><a href="#memory-requirements">Memory Requirements</a></li> <li class="level1"><a href="#additional-x11-libraries-for-qvfb">Additional X11 Libraries for QVFb</a></li> </ul> </div> <h1 class="title">Qt for Embedded Linux Requirements</h1> <span class="subtitle"></span> <!-- $$$requirements-embedded-linux.html-description --> <div class="descr"> <a name="details"></a> <a name="building-qt-for-embedded-linux-with-uclibc"></a> <h2>Building Qt for Embedded Linux with uclibc</h2> <p>If you intend to include the <a href="qtwebkit.html">QtWebKit</a> module in your Qt build then you should use version <b>uClibc 0.9.29 or greater</b> as that is the earliest version with sufficient pthread support.</p> <a name="memory-requirements"></a> <h2>Memory Requirements</h2> <p>The memory and storage requirements for Qt for Embedded Linux depend on a an variety of different factors, including the target architecture and the features enabled in the Qt build.</p> <p>The following table shows typical library sizes for the most common Qt libraries on different architectures, built in release mode with different feature profiles.</p> <table class="generic"> <thead><tr class="qt-style"><th rowspan="2">Architecture</th><th rowspan="2">Compiler</th><th colspan="2"><a href="qtcore.html">QtCore</a></th><th colspan="2"><a href="qtgui.html">QtGui</a></th><th colspan="2"><a href="qtnetwork.html">QtNetwork</a></th><th colspan="2"><a href="qtwebkit.html">QtWebKit</a></th></tr> <tr class="qt-style"><th >Minimal</th><th >Normal</th><th >Minimal</th><th >Normal</th><th >Minimal</th><th >Normal</th><th >Minimal</th><th >Normal</th></tr></thead> <tr valign="top" class="odd"><td >linux-x86-g++</td><td >GCC 4.2.4</td><td >1.7M</td><td >2.7M</td><td >3.3M</td><td >9.9M</td><td >653K</td><td >1.1M</td><td >N/A</td><td >17M</td></tr> <tr valign="top" class="even"><td >linux-arm-g++</td><td >GCC 4.1.1</td><td >1.9M</td><td >3.2M</td><td >4.1M</td><td >11M</td><td >507K</td><td >1.0M</td><td >N/A</td><td >17M</td></tr> <tr valign="top" class="odd"><td >linux-mips-g++ (MIPS32)</td><td >GCC 4.2.4</td><td >2.0M</td><td >3.2M</td><td >4.5M</td><td >12M</td><td >505K</td><td >1003K</td><td >N/A</td><td >21M</td></tr> </table> <p>Library sizes are given in the following units: K = 1024 bytes; M = 1024K. <a href="qtwebkit.html">QtWebKit</a> is excluded from the minimal configuration.</p> <p>The <a href="fine-tuning-features.html">Fine-Tuning Features in Qt</a> document covers the process of configuring Qt builds to avoid the inclusion of unnecessary features.</p> <a name="additional-x11-libraries-for-qvfb"></a> <h2>Additional X11 Libraries for QVFb</h2> <p>The Virtual Framebuffer (QVFb) application requires the <tt>libxtst</tt> library in addition to the libraries used to build Qt for X11. This library enables the use of the Record extension to the X protocol to be used in applications.</p> </div> <p><b>See also </b><a href="known-issues.html">Known Issues</a>.</p> <!-- @@@requirements-embedded-linux.html --> <p class="naviNextPrevious footerNavi"> <a class="prevPage" href="requirements.html">General Qt Requirements</a> </p> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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