Using the new yabi tool, this detects stuff from an unknown library, even after building it with Weechat's devel package installed. I'm not sure what package I'm missing, but if anyone knows, I can rebuild after making sure it's installed on my system so we have the correct library and symbol information.

I don't think you are missing something. From google searches gzclose, gzeof and gzgets are zlib functions and zlib-devel is already installed when compiling weechat, because zlib-devel is a dependency of tcl-devel which is pkgconfig(tcl) in package.yml file.

the stuff needs to be installed on your system as well

@algent the new tool currently is only able to look at the actual system because it's not running in the solbuild chroot. That said, I did have zlib-devel installed already, so I really don't know. Thanks for figuring out the package though! Maybe that can be of some use.