That's not the case. What you get depends only on the processor type. What does vary is whether or not any given platform has actually been tested - i.e. the

That's not the case. What you get depends only on the processor type. What does vary is whether or not any given platform has actually been tested - i.e. the code compiled on that platform, and the test programme run. Currently, only ARM32, MIPS32 and x64 platforms are available, and so the test programme has only been run on those platforms. Finally, I think you may have been misled in the same way another reader further down was; note that the matrix is the matrix of toolchains which are supported out-of-the-box, i.e. where the library ships with build files for those platforms. It is NOT the matrix of the ONLY tooclhains which can be used.