id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	difficulty	ghcversion	platform
571	"bad error message: ""There is no installed version of base"""	guest		"Here's a trimmed down version of the problem, demonstrated in a shell session:
{{{
# ls
Setup.lhs  u.cabal
# cat u.cabal
cabal-version: >= 1.2
build-type: Simple
name: u
version: 0.0

library
# cabal install
Resolving dependencies...
cabal: There is no installed version of base
}}}
What is wrong? Building and installing the package with Cabal (using Setup.lhs) worked fine. And according to ghc-pkg, base was installed. After a while I figured out a solution - apparently cabal-install expects the package to depend on base:
{{{
# echo '    build-depends: base >= 4 && < 5' >> u.cabal
# cabal install
Resolving dependencies...
Configuring u-0.0...
Preprocessing library u-0.0...
Building u-0.0...
Registering u-0.0...
Installing library in /opt/ghc-6.10.4/lib/u-0.0/ghc-6.10.4
Registering u-0.0...
#
}}}
Is there a good reason for this behaviour?

(Setting low priority because the vast majority of packages depends on base anyway.)

Versions:
{{{
cabal-install version 0.7                -- darcs head
using version 1.7.3 of the Cabal library -- ghc's version
}}}

-- int-e"	defect	closed	low	cabal-install-0.14	cabal-install tool	HEAD	minor	fixed			unknown