HowtoQt

Qt and QML on WebOS devices

This document explains how to set-up Qt 4.8 (Trolltech/Nokia's cross-platform application and UI framework) on WebOS devices, and then how to cross-compile Qt or QML apps.

This guide assumes a Linux development environment, and Qt 4.8. The process for Qt 4.7.x is identical; no idea for Qt 5.

The steps include:

1. Getting and setting-up the Palm PDK
2. Optionally: completing the PDK with some missing includes
3. Getting Qt 4.8, setting it up for cross-compilation
4. Cross-compilation of Qt 4.8
5. Updated webos port of Qt
6. Application tweaks to look for libs in the right places

1. Getting and setting up the Palm PDK

Qt is cross-compiled with the official Palm PDK. The PDK plays nice: it can be installed alongside the webos internals WIDK without conflicts; there is no need to modify paths or environment variables.

Note that I haven't "fully" installed the PDK. In particular I haven't set-up the emulator. The basic stuff needed are: the arm gcc toolchain, and novacom to communicate with the device.

1. Read about the Palm SDK 3.05
2. Download novacom from that page
3. Download the SDK from that page
4. Install novacom and the SDK following the instructions. I.e.:
   1. sudo dpkg -i palm-sdk_3.0.5-svn528736-pho676_i386.deb
   2. sudo dpkg -i palm-novacom_1.0.80_i386.deb
5. The SDK is now in /opt/PalmPDK
6. Check that all is fine: /opt/PalmPDK/??????????