Jim Meyering wrote:
Sounds like it must be something fundamental. I've just confirmed that
at commit v2.25-100-gcd8082e `./bootstrap && ./configure && make &&
make distcheck` succeeds on both Fedora 24 and Debian unstable.
Did you rerun ./bootstrap?
Yes.
I think the difference is that I'm not running plain 'make' first. I jump
straight to 'make dist'. That is, from a fresh copy of grep (same commit as
yours), I run:
./bootstrap && ./configure && make dist
and this gets the tight_scope failure I mentioned earlier, on Ubuntu 16.04.1 LTS
anyway.