[PATCH] Raise the minimum GCC version to 5.2

[Segher Boessenkool]

On Sun, May 02, 2021 at 12:15:38AM +0900, Masahiro Yamada wrote:
> The current minimum GCC version is 4.9 except ARCH=arm64 requiring
> GCC 5.1.
> 
> When we discussed last time, we agreed to raise the minimum GCC version
> to 5.1 globally. [1]
> 
> I'd like to propose GCC 5.2 to clean up arch/powerpc/Kconfig as well.

Both of these are GCC version 5.  GCC 5.1 is the first release of that,
GCC 5.2 the second, etc.  Everyone should always use an as new release
as practical, since many bugs will be fixed, and nothing else changed.

See <https://gcc.gnu.org/develop.html#num_scheme>.

So, this means everyone using GCC 5 should be using the GCC 5.5 release!

If there is something about 5.1 that makes it produce bad kernels on
some arch, make that arch's Makefile complain?  Same with binutils etc.


Segher