Re: man-pages-6.11 released

[Alejandro Colomar]

[CC += Paul, Sam, help-make@]

Hi Brian, Paul, Sam,

On Sun, Feb 16, 2025 at 02:48:54PM +0100, Alejandro Colomar wrote:
> Bisecting the bug shows it's fault of this commit:
> 
> 0d69e51cd4b8 (2025-02-10; "share/mk/: Use ?= assignments for user-facing 
> variables")
> 
> I suspect there's some variable that we use that exists in a normal
> environment?  I'll check.

Hmmm, at first glance, I don't see anything from the environment that
would make this behave differently:

        $ (
                git show 0d69e51cd4b8 \
                | grep '^+' \
                | grep -v '^++' \
                | sed 's/\s*?=.*//' \
                | grep -v '$.' \
                | tr -d '+';

                env \
                | sed 's/=.*//';
        ) \
        | sort \
        | uniq -d \
        | wc -l;
        0

The command above says there are no clashes with my environment.

My second guess is that ?= since has the = behavior, which is different
from :=, that might be the problem.  We'd need a hypothetical ?:=,
maybe?

Sam, that means that I'll have to revert this change with no short-term
replacement.  We'll have to live without environment variables for some
more time.  ?= doesn't work for well here, it seems.

I remember GNU make(1) was working on some of that.  Paul, how is it
going with the idea you suggested some time ago of adding "trigraphs" to
GNU make(1)?


Have a lovely day!
Alex

-- 
<https://www.alejandro-colomar.es/>

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