Re: How to link new libraries when building emacs

[Elijah G <eg642616@gmail.com>]

On Thu, Apr 4, 2024 at 11:19 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Elijah G <eg642616@gmail.com>
> > Date: Thu, 4 Apr 2024 16:47:07 -0600
> > Cc: Po Lu <luangruo@yahoo.com>, emacs-devel@gnu.org
> >
> > On Thu, Apr 4, 2024 at 12:47 AM Eli Zaretskii <eliz@gnu.org> wrote:
> > >
> > > I'm guessing that using Direct2D will need a whole new font back-end,
> > > since we'd need a different implementation of the main drawing methods
> > > exported by the font driver.
> >
> > I guess so, Also it needs DirectDraw (dwrite.h) which sadly most
> > of their functions to draw are made in C++ AFAIS,
>
> Yes, it seems so.  It's the main reason we didn't try to use them in
> Emacs.

What a shame, I'll try to do a new back-end for Directdraw,
i can't promise it, but I hope I succeed.

> > i think I'll need to create a new header like w32direct2d.h
> > I wonder how to import another C header, do i need to modify
> > autoconf files or something like that?.
>
> No need to change autoconf files, just add the header and use it in
> the C sources.  Autoconf changes are needed only if some systems don't
> have a header file, but for header files that are part of Emacs, that
> cannot happen.

Thanks for the info.