Comment 6 for bug 2005955

You shouldn't need to patch it to accept a file url, the ReVendor framework I contributed to calibre supports automatically handling command line options for specifying an unpacked source directory -- I needed that so I could do my own distro packaging for calibre.

But also, you shouldn't need to constantly rerun that, why are you doing so?

Is this for the official Debian packaging of calibre? It shouldn't be needed...

Why are you recompiling lots of resources that already ship in the dist tarballs? Are you building from a calibre source checkout? Why not run the bootstrap command as discussed in the link I provided?