GMP is now a required dependency for building GDB

[Joel Sherrill]

On Tue, Nov 17, 2020 at 1:46 AM Sebastian Huber <
sebastian.huber at embedded-brains.de> wrote:

> Hello,
>
> I tried to update the RTEMS 6/7 tools yesterday and all builds failed on
> my FreeBSD machine. The reason is this change in GDB:
>
> commit 1b4ac058f7daeb9bac9ab0e63a7e73535208dfef
> Author: Joel Brobecker <brobecker at adacore.com>
> Date:   Sun Nov 15 03:08:40 2020 -0500
>
>      gdb: Make GMP a required dependency for building GDB
>
>      This commit modifies gdb's configure script to trigger an error
>      if we cannot find a usable libgmp.
>
>      For the record, making this a requirement was discussed in March 2018:
> https://sourceware.org/pipermail/gdb-patches/2018-March/147373.html
>
>      gdb/ChangeLog:
>
>              * configure.ac: Generate an error if a usable GMP library
>              could not be found.
>              * configure: Regenerate.
>
> The GMP library is not available by default on FreeBSD systems. For GCC
> we include a fixed version and build it together with GCC. What should
> be do for GDB?
>

I would lean to including the same version in GDB that we do in GCC.

Is this like gcc in that if they find it in the source tree, they will use
it?

--joel

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