Re: New warnings on emacs-26 branch with gcc 8.2.0

[Paul Eggert]

Andy Moreton wrote:
> Of the 562 "checking" lines when running configure on master, 146 of
> them are "checking whether C compiler handles -W*". This is excessively
> time consuming. Can gnulib not do less work to acheive this end, or do
> the work more efficiently ?

Yes, it probably could, but it'd take some hacking to get it to work right. So 
far, nobody has volunteered to do that. It'd be nontrivial, as the 
configure-time code needs to work with older GCCs and with compilers other than GCC.