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

[Sebastian Huber]

Hello Chris,

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

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.

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

The documentation

https://docs.rtems.org/branches/master/rsb/building-tools-and-rtems.html#controlling-the-build

should probably be updated to mention this.

I would use the latest RTEMS.

-- 
Sebastian Huber, embedded brains GmbH

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