Snippets for emacs 30.2 from Nix x86_64-linux

Sourced from https://hydra.nixos.org/log/ckzpr3m55x0qm5kp2v72mq6wavzjwk3p-emacs-pgtk-30.2.drv.

• pgtkfns.c:765:3: warning: 'gdk_pixbuf_new_from_xpm_data' is deprecated [-Wdeprecated-declarations]
    765 |   GdkPixbuf *pixbuf = gdk_pixbuf_new_from_xpm_data (data);
        |   ^~~~~~~~~