[tlbuild] tl25/dev: building failure on OpenBSD

[Robert Alessi]

On Mon, Apr 22, 2024 at 09:01:37AM +0200, Bruno Haible wrote:
> 
> Build/source/README.1prerequisites does not state a minimum version
> of 'makeinfo' so far. But version 4.8 is clearly very very old.
> 

I know, but it has passed so far with 4.8, even with the same
MAKEINFOFLAGS as now, and given that makeinfo is part of the base
system, there is no easy way to update it...  (Having said that, I
surmise this issue may not be with the makeinfo version.)

Thanks,  -- R