account for let &makeprg in Dispatch makeprg detection in compiler file

[Konfekt]

The following idiom in a compiler/*.vim file

let &l:makeprg = 'm'
exe 'CompilerSet makeprg='..escape(&l:makeprg, ' "')

should work fine (maybe requiring further escapes!?), but is not accounted for by :Dispatch.
I suspect a regex searches for makeprg=\w+ ?

[Konfekt]

One can work around by " CompilerSet makeprg=m comments, but that seems rather something to be fixed on Dispatch's side

[tpope]

The following idiom in a compiler/*.vim file

Can you show me some real world examples?

One can work around by " CompilerSet makeprg=m comments, but that seems rather something to be fixed on Dispatch's side

Fixed how? Seems well beyond the limits of what can be accomplished with regex.

[Konfekt]

Can you show me some real world examples?

https://github.com/vim/vim/pull/15804/files , https://github.com/vim/vim/pull/16007/files and https://github.com/vim/vim/pull/16001/files

I sneaked in besaid comment just in case

Fixed how? Seems well beyond the limits of what can be accomplished with regex.

Maybe something like \v<makeprg>\W+=\W+<m> if not too slow?