cabal sandbox + cabal repl + haskeline doesn't handle Ctrl-C

[spl]

This bug looks like #1448. I'm told that that issue is supposedly fixed, so I'm reporting this as a new issue.

Relevant versions:

• Mac OS X 10.8.5 (Mountain Lion)
• Haskell Platform 2013.2.0.0 (64 bit)
• GHC 7.6.3
• Cabal 1.18.1.1
• cabal-install 1.18.0.2
• process 1.1.0.2

Steps to reproduce:

1. Download/clone this small ib package and enter the repository directory
2. cabal sandbox init
3. cabal install --only-dependencies (installs terminfo-0.3.2.5 and haskeline-0.7.0.3)
4. cabal repl
5. *Main> main
6. Ctrl-C
7. After the program exits, hit Enter a few times

Resulting output:

$ cabal repl
Preprocessing executable 'ib' for ib-0.0.0.0...
GHCi, version 7.6.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package array-0.4.0.1 ... linking ... done.
Loading package deepseq-1.3.0.1 ... linking ... done.
Loading package bytestring-0.10.0.2 ... linking ... done.
Loading package containers-0.5.0.0 ... linking ... done.
Loading package filepath-1.3.0.1 ... linking ... done.
Loading package old-locale-1.0.0.5 ... linking ... done.
Loading package time-1.4.0.1 ... linking ... done.
Loading package unix-2.6.0.1 ... linking ... done.
Loading package directory-1.2.0.1 ... linking ... done.
Loading package terminfo-0.3.2.5 ... linking ... done.
Loading package transformers-0.3.0.0 ... linking ... done.
Loading package haskeline-0.7.0.3 ... linking ... done.
[1 of 1] Compiling Main             ( Main.hs, interpreted )
Ok, modules loaded: Main.
*Main> main
0:
line 0:Caught interrupted
1:

$

$ *** Exception: <stdin>: hGetChar: hardware fault (Input/output error)
*Main>

<stdin>: hGetChar: hardware fault (Input/output error)

Notes:

• If I install the dependencies (same version) locally without sandboxing, I see the expected behavior for Ctrl-C (i.e. the interrupt exception is caught):

$ ghci Main.hs
GHCi, version 7.6.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main             ( Main.hs, interpreted )
Ok, modules loaded: Main.
*Main> main
Loading package array-0.4.0.1 ... linking ... done.
Loading package deepseq-1.3.0.1 ... linking ... done.
Loading package bytestring-0.10.0.2 ... linking ... done.
Loading package containers-0.5.0.0 ... linking ... done.
Loading package filepath-1.3.0.1 ... linking ... done.
Loading package old-locale-1.0.0.5 ... linking ... done.
Loading package time-1.4.0.1 ... linking ... done.
Loading package unix-2.6.0.1 ... linking ... done.
Loading package directory-1.2.0.1 ... linking ... done.
Loading package transformers-0.3.0.0 ... linking ... done.
Loading package terminfo-0.3.2.5 ... linking ... done.
Loading package haskeline-0.7.0.3 ... linking ... done.
0:
line 0:Caught interrupted
1:
line 1:Caught interrupted
2:

[23Skidoo]

Reproducible on Linux:

Ok, modules loaded: Main.
*Main> main
0:
line 0:
1:2
line 1:2
2:

line 2:Caught interrupted
$ 

*** Exception: <stdin>: hGetChar: hardware fault (Input/output error)                                                                                                                                                                                                                                                          
$ 

<stdin>: hGetChar: hardware fault (Input/output error)

[23Skidoo]

Interestingly enough, this seems to work just fine if I run rawSystem "ghci" [...] from ghci.

[23Skidoo]

@spl

Should be fixed now.

@tibbe

I've also pushed this fix to the 1.18 branch.

[spl]

@23Skidoo It worked for me. Thanks!