Problems with RTEMS toolchain build 4.12 & 5 incl. Ada support

Chris Johns chrisj at
Sun Dec 2 22:36:35 UTC 2018

On 30/11/2018 19:01, Sebastian Huber wrote:
> I regularly build the RTEMS 5 tools with Ada support using the RSB, e.g.
> cd $RSB/rtems
> ../source-builder/sb-set-builder --prefix=/opt/rtems/5 5/rtems-sparc --with-ada

Great. Have you posted any of these builds to build at

> The host and target GCC versions must match to build Ada. So, building the 6.3.0
> RTEMS target GCC with a 7.1.0 host GCC will not work.

Should the RSB check the version of GCC's Gnat?

> You must not have a previous installation in the prefix if you build new tools
> with Ada support.

Oh this complicated issue again [1]. I suspect this one is not going to go away
in a hurry and the solution will need to be clearly thought out.

Could you please update the ticket with this detail so it is captured? I have
not built Ada for RTEMS so I am not sure what the exe prefixes etc are.

> The documentation
> should probably be updated to mention this.

I see a patch from you, thank you. I will review it today.

> I would use the latest RTEMS.

Sure and thanks.



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