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Trying to run ghci -XSafe produces the following output:

GHCi, version 8.0.1: http://www.haskell.org/ghc/  :? for help

<interactive>:1:6: error:
    Not in scope: ‘System.IO.hSetBuffering’
    No module named ‘System.IO’ is imported.

<interactive>:1:30: error:
    Not in scope: ‘System.IO.stdin’
    No module named ‘System.IO’ is imported.

<interactive>:1:46: error:
    Not in scope: data constructor ‘System.IO.NoBuffering’
    No module named ‘System.IO’ is imported.

<interactive>:1:70: error:
    Not in scope: ‘System.IO.hSetBuffering’
    No module named ‘System.IO’ is imported.

<interactive>:1:94: error:
    Not in scope: ‘System.IO.stdout’
    No module named ‘System.IO’ is imported.

<interactive>:1:111: error:
    Not in scope: data constructor ‘System.IO.NoBuffering’
    No module named ‘System.IO’ is imported.

<interactive>:1:135: error:
    Not in scope: ‘System.IO.hSetBuffering’
    No module named ‘System.IO’ is imported.

<interactive>:1:159: error:
    Not in scope: ‘System.IO.stderr’
    No module named ‘System.IO’ is imported.

<interactive>:1:176: error:
    Not in scope: data constructor ‘System.IO.NoBuffering’
    No module named ‘System.IO’ is imported.

I'm not sure whether this should work, but in any case the error message is horrible. I tried adding -trust base to no avail.

For comparison, ghc-7.10.3 starts with no trouble:

> ghci -XSafe
GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
Prelude> 

(Motivation: I'm using ghci in Safe mode to track down import problems with SafeHaskell. As a workaround, I can use :set -XSafe after ghci's startup is done.)

Trac metadata

Trac field	Value
Version	8.0.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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