Hi Romain, James, Thank you for great explanation and resources, I'm not experienced in SPARC. But I tested it on V9, so I guess I need to find V7 or V8 machine. Although the perfect solution would be a code which runs also in V9 32-bit chroot, it will be enough to have SPARC32 implementation (V7 or V8) as the code is supposed to run on SPARC32 natively (there is already different code for SPARC64). Kind regards, Petr