[PATCH] Fix GDB build on ArchLinux

[Chris Johns]

On 02/07/2017 02:01, andreas.koelbl at st.oth-regensburg.de wrote:
> From: Andreas Kölbl <andreas.koelbl at st.oth-regensburg.de>
> 
> Archlinux provides both, libguile v2.0 and v2.2. GDB states in
> configuration its compatibility with both versions of libguile which is
> false. The SCM_port interface of libguile was removed in v2.2 and
> therefore breaks GDB as a user.
> 
> RTEMS does not use libguile and therefore it can be compiled without
> support.
> 
> https://sourceware.org/bugzilla/show_bug.cgi?id=21104
> 
> Close #3054.

Pushed. Thank you.

Chris