Re: [MPS test] `void-function igc--collect` on scratch/igc branch (commit: `42731228d2`)

[Eval Exec <execvy@gmail.com>]

Thank you! After installing the mps package, the newly built Emacs now
includes the `igc--collect` function.

On Mon, Aug 5, 2024 at 11:01 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Eval Exec <execvy@gmail.com>
> > Date: Mon, 5 Aug 2024 21:48:24 +0800
> >
> > Then I build emacs by:
> > ```bash
> > make extraclean
> > ./autogen.sh \
> >   && ./configure \
> >   --prefix=$(realpath ../emacs-build)\
> >   --with-mps \
> >   --with-imagemagick \
> >   --with-modules --with-x-toolkit=lucid --without-compress-install \
> >   --without-toolkit-scroll-bars --with-native-compilation  --with-mailutils\
> >   --with-tree-sitter --with-xinput2  \
> >   --with-dbus  --with-native-compilation=aot \
> >   --with-file-notification=inotify\
> >   && make -j20 install
> > ```
> >
> > After build success, I notice there is an interactive command:
> > `igc-collect`, so I `M-x igc-collect`, then I got:
> >
> > ```elisp
> > Debugger entered--Lisp error: (void-function igc--collect)
> >   igc--collect()
> >   igc-collect()
> >   funcall-interactively(igc-collect)
> >   command-execute(igc-collect record)
> >   #<subr execute-extended-command>(nil "igc-collect" nil)
> >   ad-Advice-execute-extended-command(#<subr execute-extended-command>
> > nil "igc-collect" nil)
> >   apply(ad-Advice-execute-extended-command #<subr
> > execute-extended-command> (nil "igc-collect" nil))
> >   execute-extended-command(nil "igc-collect" nil)
> >   funcall-interactively(execute-extended-command nil "igc-collect" nil)
> >   command-execute(execute-extended-command)
> > ```
> >
> >
> > Is this expected? Did I miss something when I building Emacs?
>
> You need to make sure the configure script finds the MPS library,
> otherwise it will build without the new GC.