Re: config.sub/config.guess using nonportable $(...) substitutions

[Paul Eggert]

On 3/9/21 5:57 AM, Bob Friesenhahn wrote:

> It seems that config.guess and Autotools packages are picking winners 
> and losers.  It is not clear where the bar has been set.

I prefer to draw the line at systems that are no longer supported by 
their own suppliers. For Solaris, that means I worry only about Solaris 
10 and later, as Oracle no longer supports older versions.

However, this is not a boundary formally set by the GNU project, and 
different developers can choose different boundaries, as described in 
"Platforms to Support" section of the GNU software maintainers manual 
<https://www.gnu.org/prep/maintain/html_node/Platforms.html>.

config.sub/config.guess are special in that they're shared among so many 
projects, and so the boundary that Ben uses affects a lot of projects' 
configuration code.