ghci + PackageImports behaves strangely
It seems that failed imports can affect later attempts at importing. For example, compare the following runs of ghci:
sorghum:~% ghci
GHCi, version 7.4.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> :set -XPackageImports
Prelude> import "mtl" Control.Monad.State
Prelude Control.Monad.State>
Leaving GHCi.
sorghum:~% ghci
GHCi, version 7.4.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> :set -XPackageImports
Prelude> import "mtl-2.0.1.0" Control.Monad.State
Top level:
Failed to load interface for `Control.Monad.State'
It is not a module in the current program, or in any known package.
Prelude> import "mtl" Control.Monad.State
Top level:
Failed to load interface for `Control.Monad.State'
It is not a module in the current program, or in any known package.
Prelude>
Leaving GHCi.
sorghum:~% ghc-pkg list mtl
/usr/local/lib/ghc-7.4.1/package.conf.d
mtl-2.0.1.0
Trac metadata
Trac field | Value |
---|---|
Version | 7.4.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |