Re: M4sh tests 77 and 78 vs /bin/sh -> dash

[Paul Eggert]

On 3/23/20 8:01 AM, Zack Weinberg wrote:
> If I were writing the patches they would go something like this:
> Change _AS_DETECT_BETTER_SHELL so that if there is more than one shell
> that supports all of the "as_required" features, it prefers a shell
> that doesn't set either BASH_VERSION or ZSH_VERSION, even if that one
> doesn't support all of the "as_suggested" features.

I'm a bit dubious, partly because this horse left the barn so long ago that its 
tail has disappeared over the horizon, and partly because the Autoconf Way is 
that people should be able to use the current platform's extensions if they're 
available.