@oskarsh I've set up a new Debian Testing VM, installed faust 2.72.9.
I needed to compille faust using the BACKEND=backends/all.cmake && sudo make install
If you have a version from apt that does not produce any errors use that!
I then set up HISE with faust the usual way by adding faust to the extra linker flags and enabling faust in the modules.
To fix the _mm_setcsr(static_cast<uint32_t>(fpsr_aux)); or setFpStatusRegister(fpsr); error. I've added this line to HISE source code.
#include <cstdint>
at the beginning of the dsp.h file