Timothy Sample <samplet@ngyro.com> writes:

> I ran into this bug when building Sed via GNU Guix running on top of
> Fedora 31.  This means I was building Sed version 4.7 from the release
> tarball.

Me, too!  I reported it here:

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=41498

> The generated Makefile did set “CONFIG_HEADER”.  However, I noticed that
> “CONFIG_HEADER” was absent from the list of variables propagated into
> the test environment (see the “TEST_ENVIRONMENT” variable in
> “testsuite/local.mk”).  Adding it there allowed the test to be skipped
> rather than causing a hard error.

Yes, this fixes the issue for me, too.  I have attached a patch.

Assaf, how does this look?

-- 
Chris