id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
150	ghc-6.0: panic on a simple example	fraczak	nobody	"{{{
I've just installed ghc-6 and started to play with it. 
I defined an infinite list of integers in the following
way:
-- increment a list of integer by one
 incl :: [ Integer ] -> [ Integer ]
 incl [] = []
 incl (x:l) = (x+1:(incl l))
-- infinite list of integers
 il = ( 1 : (incl il))

the list prints nicely, however ghc has problems with
this simple pattern-matching extraction of the first
element:

*Main> let (a:x) = il in a
ghc-6.0: panic! (the `impossible' happened, GHC version
6.0):
        getLinkDeps No iface for [<pkg>]GHCziErr

Please report it as a compiler bug to
glasgow-haskell-bugs@haskell.org,
or http://sourceforge.net/projects/ghc/.


}}}"	bug	closed	normal		Compiler	None	Fixed