On 10/18/2013 06:54 AM, Warlich, Christof wrote: > Well, I more or less inherited a poorly structured toolchain build > environment for the target architectures i686, mibsel, mipseb, arm > and powerpc, all for Linux, and I urgently need to do some cleanup > work, as new versions for these architectures are to be supported in > the future. And even when using crosstool-ng to do this task, I > wanted to know which changes in the target tuple do really affect > toolchain generation and which ones don't, but are to be recommended > from the conventional point of view. Any GNU/Linux cross-compiler that you use must be built against the system that it is targeting. This is not just because of the ABI, but because it is built against the target's headers and libraries. You cannot use a cross-compiler built for one system to build for another. Andrew.