On 02-08-2022 22:13, muradm wrote: > From below error I see that it is pth package failing to build. > Most likely there are others that are not getting built. > Does it mean that it was never built before mu-1.8.7? > Does it mean that we sould restrict mu-1.8.7 by platform? > It fails to cross-compile to aarch64-linux (--target), but it compiles fine natively (--system without --target), so I don't think adjusting 'supported-systems' is necessary.  Rather, it seems to me that pth' configure script should eventually be tweaked to support aarch64-linux-gnu not only when compiling natively, but also when cross-compiling. Greetings, Maxime.