[Bug bootstrap/97183] zstd build failure for gcc 10 on Ubuntu 16.04

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97183

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
> Or we can check for the 1.3.0 version which seems simpler. 
> I do know that version 1.3.3 of zstd works as this is what Ubuntu 18.04 has.
> I haven't tried the versions 1.3.[012].

Yes, I would recommend checking for a specific minimal version (in this case
1.3.0).