From OpenSCADAWiki
PTXDist
Universal tool for building kernels, ToolChains and software environments based on Linux from the "Pengutronix" company. PTXDist is a powerful and flexible tool, but its older versions have problems in the modern host systems, which complicates the task of building the software environments for relatively old but still prevalent hardware platforms. For example, now (2012) can be found new hardware with the ARM XScale, ARM9 (ARMv5) processors of the year 2003. However, newer versions of PTXDist support the old platforms, what can be learned from the support table by the link: http://www.pengutronix.de/oselas/toolchain/index_en.html.