[Pkg-haskell-maintainers] Bug#790350: ghc-mod: Crush problem of ghc-mod

[Kei Hibino]

Package: ghc-mod
Version: 5.2.1.2-1
Severity: important

Dear Maintainer,

Not compiled code like below (M.hs) causes ghc-mod to crush.

-------
{-# LANGUAGE TemplateHaskell #-}

module M where

import System.Environment
import Language.Haskell.TH

$(runIO getEnvironment >> return [])
-------

Crush exmaple commands and outputs are below.

% echo check M.hs | ghc-modi
Segmentation fault (core dumped)
% ghc-mod check M.hs
Segmentation fault (core dumped)

Potentially, it may be runtime system problem of ghc package.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.0.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages ghc-mod depends on:
ii  ghc       7.8.4-9
ii  libc6     2.19-18
ii  libffi6   3.1-2+b2
ii  libgmp10  2:6.0.0+dfsg-6

Versions of packages ghc-mod recommends:
ii  ghc-mod-el  5.2.1.2-1

ghc-mod suggests no packages.

-- no debconf information