V3 [PATCH 5/5] gnulib: Support variables from the top level Makefile

[H.J. Lu]

On Thu, Dec 31, 2020 at 3:50 PM Joseph Myers <joseph@codesourcery.com> wrote:
>
> On Sat, 19 Dec 2020, H.J. Lu via Gcc-patches wrote:
>
> > Work around what appears to be a GNU make bug handling MAKEFLAGS
> > values defined in terms of make variables, as is the case for CC and
> > friends when we are called from the top level Makefile.
>
> This description, and the comment in Makefile.am repeating it, is rather
> unhelpful as it provides no way for a reader to know what the supposed bug
> is.  Reviewers need to be able to work out whether the proposed workaround
> is correct or the right approach for working around the bug.  Maintainers
> in future need to be able to tell what the bug is.  So the comment needs
> to explain what the bug is and give a reference to a report for the bug in
> the GNU make bug tracker, so that subsequent maintainers can look at that
> bug to tell if the workaround is still needed at all.
>

I just copied the same workaround from other directories in GCC.

-- 
H.J.