When I navigate through `describe-function' to the source of a function, very often the buffer is visiting a file with a ".el.gz" extension.
Often these files are multi-thousand lines, so a list of functions and variables would be quite useful. And speedbar-mode provides exactly the sort of listing that I'm thinking about.
However, speedbar-mode doesn't work in these buffers. Is there an easy way to get speedbar-mode to work in these buffers?