Under chicken 3.4.0, I have noticed that I can make chicken-setup enter
into an infinite loop by telling it to fetch, but not install the http egg.
I posit that the cause is a circular dependency somewhere among http's
many dependencies, because eggs like rss with simpler dependencies
do not loop.
The dependency tree in this case looks like:
http (regex-case url openssl)
url (coerce uri)
coerce (miscmacros misc-extn)
misc-extn (stack miscmacros)
uri (coerce miscmacros synch lookup-table)
lookup-table (miscmacros misc-extn)
There's no circular dependency (that would arguably be a bug
in the eggs themselves, though chicken-setup should try to
handle it gracefully), just some diamond inheritance, but it
turns out the bug is triggered for any egg with any
I've checked in a simple fix which conditions out running
"install" on downloaded dependencies when -fetch is being
Note this ugly mess has been rewritten in the upcoming
Chicken 4 and the setup program renamed to chicken-install.
Note also that the "http" egg also has an improved version
in Chicken 4 called "intarweb" :)