Cannot build the firmware from Ubuntu 20.04

huntc

I'm having some difficulty building the Onion-based firmware. I've been following the instructions here: https://github.com/OnionIoT/source using an Ubuntu 20.04 machine for the build. Here's what I get when using make -j1 V=s:

Note that I also had to use gcc v9 as the build doesn't appear to support v10 or v11, and it doesn't appear that anything less than v9 is available anymore.

gcc  -I.   -I/root/onion-builds/source/staging_dir/host/include   -O2 -I/root/onion-builds/source/staging_dir/host/include  -MT c-stack.o -MD -MP -MF $depbase.Tpo -c -o c-stack.o c-stack.c &&\
mv -f $depbase.Tpo $depbase.Po
In file included from /usr/include/signal.h:328,
                 from ./signal.h:52,
                 from c-stack.c:49:
c-stack.c:55:26: error: missing binary operator before token "("
   55 | #elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384
      |                          ^~~~~~~~

Any ideas? Thanks.

huntc

So... it seems that downgrading my system to Ubuntu 18.04 works. I hope that this thread helps someone else in that way.

I've raised a PR to hopefully clarify: https://github.com/OnionIoT/source/pull/35

crispyoz

@huntc I used to use Ubuntu 18 for ages, when I upgrades to 20.04 I had to work through a number of issues but eventually got it working. Now using 22.04LTS since release and it works fine except for a couple of packages that need some tweaks.

huntc

@crispyoz Thanks. It'd be great for Onion to see that they can build on 20.04 out of the box. It is obviously doable.