nkrackow
commented
4 years ago Hi, thank you very much for the heads up! Had the same problem on 20.04 building nextpnr-ice40 failing with " undefined reference to `_Py_tracemalloc_config' ". Using Python 3.8 fixed it there.
Unfortunaltely I now get the same error as other people with the nextpnr-ecp5 build not finding the Trellis files... I am sure that I have installed it with -DTRELLIS_INSTALL_PREFIX=/usr .
Could it be a problem that the lib files from the trellis installation are in /usr/lib/x86_64-linux-gnu/trellis instead of /usr/lib/trellis?
blakesmith
opensiriusfox
arblake
Not sure if there's something unique about my setup, but for posterity's sake, I wanted to show how I was able to build nextpnr after upgrading to Ubuntu 20.04.
With Ubuntu 20.04 installed, nextpnr was having trouble finding Python during the build (both the include dir, as well as during linking). After installing libboost-python-dev and python3-dev, I had to configure cmake with (ECP5 arch):
I hope this helps someone!
I love nextpnr so far, thank you so much for all the hard work that's put into it (as well as yosys, etc.) - it's going to open up FPGAs to so many people that it wouldn't be accessible to before (myself included). Cheers!