On 29/1/20 8:35 am, Павел Трошин wrote: > I am using Linux Ubuntu 18.04 and I tried to use macOS OK. > > But if I use the option --no-clean or if I change swig_prefix from > %{_tmproot}/swig to {_tmppath}/swig, I can build rtems-llvm. Interesting. I think you change is right. Could you please raise a ticket and attach a patch? Thanks Chris