Snippets for emacs 30.2 from Nix x86_64-linux

Sourced from https://hydra.nixos.org/log/fjyx39x5ri1sdi3cqk6qrsfqw29nzla8-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);
        |   ^~~~~~~~~