获得Haskell'；s hsenv将在Ubuntu 13上工作

我正试图让GHC在Ubuntu上工作。他做了以下工作：

sudo apt-get install ghc
sudo apt-get install cabal-install
cabal update
cabal install hsenv

xx@xx-VirtualBox:~/scm/t1$ hsenv
Creating Virtual Haskell directory structure
Installing GHC
Initializing GHC Package database at /home/xx/scm/t1/.hsenv/ghc_pkg_db
Copying necessary packages from original GHC package database
  Failed to copy optional package ghc-binary from system's GHC: 
    /usr/bin/ghc-pkg process failed with status 1
  Using user-wide (~/.cabal/packages) Hackage download cache directory
Installing cabal config at /home/xx/scm/t1/.hsenv/cabal/config
Installing activate script
Installing cabal wrapper using /home/xx/scm/t1/.hsenv/cabal/config at /home/xx/scm/t1/.hsenv/bin/cabal
Skipping 'cabal update' step, Hackage download cache already downloaded
  to ~/.cabal/packages/. You can update it manually with 'cabal update'
  (from inside or outside the virtual environment).

然后我尝试创建一个

hsenv

环境，得到了以下结果：

sudo apt-get install ghc
sudo apt-get install cabal-install
cabal update
cabal install hsenv

xx@xx-VirtualBox:~/scm/t1$ hsenv
Creating Virtual Haskell directory structure
Installing GHC
Initializing GHC Package database at /home/xx/scm/t1/.hsenv/ghc_pkg_db
Copying necessary packages from original GHC package database
  Failed to copy optional package ghc-binary from system's GHC: 
    /usr/bin/ghc-pkg process failed with status 1
  Using user-wide (~/.cabal/packages) Hackage download cache directory
Installing cabal config at /home/xx/scm/t1/.hsenv/cabal/config
Installing activate script
Installing cabal wrapper using /home/xx/scm/t1/.hsenv/cabal/config at /home/xx/scm/t1/.hsenv/bin/cabal
Skipping 'cabal update' step, Hackage download cache already downloaded
  to ~/.cabal/packages/. You can update it manually with 'cabal update'
  (from inside or outside the virtual environment).

关键信息如下：

无法从系统的ghc复制可选程序包ghc二进制文件：

---

如何解决这个问题？这似乎是目前唯一的障碍。

这是一个源于hsenv的缺陷。看起来，在最近的GHC版本中，这个包被重命名为

binary

---

但是无论如何，

hsenv

是一个过时的项目，建议使用新的

cabal安装

或

stack

我也在Mac上得到了这个，但它似乎并没有阻止我使用hsenv。其他各种Linux发行版也是如此。ghc binary应该作为ghc包的一部分安装吗？在ubuntuI上运行对我来说很好。在Arch Linux上看到同样的消息，hsenv工作得很好——我已经每天使用它好几个月了，甚至从来没有注意到这个消息。好样的！