On Tue, 18 Nov 2025 22:17:49 -0800 (PST)
Andrew Hewus Fresh <andrew@afresh1.com> wrote:

> How does that work with
> 
> @lib
> lib/libfoo${API_VERSION}.so.${LIBfoo${API_VERSION}_VERSION}
> 
> Nov 18, 2025 21:00:25 George Koehler <kernigh@gmail.com>:
> 
> > +       while ($unsubst =~ m/\$\{LIB(.*?)\_VERSION\}$/g) {
> > +           my $name = $state->{subst}->do($1);
> > +           if ($name eq $l[0]) {
> > +               return;
> > +           }
> > +           pos($unsubst) = $-[1];

It works only because the anchor $ forces it to match the '_VERSION}'
at the end of the line.

Your code using Text::Balanced might be better.