Synopsys / Mentor "IEEE" libraries

[tmeissner]

Hi everyone.

Maybe I'm missing something, but I don't get a file compiled which uses these crappy Synopsys/Mentor "ieee" libraries:

nvc --std=19 --work=machxo2 -L ./ -a --relaxed MACHXO2COMP.vhd
** Error: design unit STD_LOGIC_ARITH not found in library IEEE
    > MACHXO2COMP.vhd:28
    |
 28 | USE ieee.std_logic_arith.all;

I there any analysis option to make this work? I didn't found anything others than --relaxed ....

[nickg]

The Synopsys packages aren't built for 2019 at the moment. Mainly to save build time and binary size. I figured someone using the 2019 standard probably isn't using 30 year old legacy packages? But I guess there is also third-party IP, like here.

[tmeissner]

Ah, right. I don't really use 2019 code ATM, so it's okay to switch to 2008. Thanks for your answer :)