Re: [RFC] Increase Minimal GNU Make version for Linux Kernel from 3.80 to 3.81

From: Jan Beulich
Date: Wed May 03 2017 - 09:42:16 EST

>>> On 03.05.17 at 15:29, <MMarek@xxxxxxxx> wrote:
> On 2017-05-03 08:46, Masahiro Yamada wrote:
>> Hello Linus and Kbuild developers.
>> Documentation/process/changes.rst says the minimal version
>> of GNU Make is 3.80, but actually building the kernel
>> with this version has been broken for a long time.
>> Specifically, it got broken by commit c8589d1e9e01 (i.e. Linux 3.18).
>> Sorry, it's me who broke it.
>> Here is my excuse:
>> - It is almost 3 years since then, but nobody complained about it.
>> - GNU Make 3.80 is almost 15 years old.
>> (Even GNU Make 3.81 was released in 2006.)
>> - People seldom test their makefiles on such old GNU Make version,
>> so they often use some features that are not supported by version 3.80.
> Agreed. It's not just the kbuild change that broke it, but as you say,
> new make features tend creep into random Makefiles. So I'm fine
> adjusting the documentation to match reality.
> Adding Jan Beulich to Cc, who to fix these cases in the past.

Thanks for asking. As I don't recall having run into the specific
problem mentioned above, I suppose I've given up at some
point and forced the use of a newer make even on those very
old distros that I tend to build / test stuff on every once in a
while. IOW I guess I'm fine with the proposed change, and I
can help myself if nevertheless needed.