GHCi在树莓派2？ [英] GHCi on raspberry pi 2?
问题描述
我正在研究一些运行在raspberry pi 2上的haskell项目以及可以使用raspbian（7.4.1）的apt-get安装的ghc版本。它没有GHCi，它可以防止编译一些重要的软件包（如Vector）。我已经看到了一些有关能够将更高版本的ghc（带有ghci）放到pi上的传闻，但最近没有。 haskell wiki上的条目看起来已经过时了几年。有没有人有这样的运气？
我有这个运气！
sagemuej @ sagemuej-Aspire-5742G：〜$ ssh pi-loc
Linux raspberrypi 3.12 .28+＃709 PREEMPT星期一9月8日15:28:00 BST 2014 armv6l
包含在Debian GNU / Linux系统中的程序是免费软件;
每个程序的确切分配条件在/ usr / share / doc / * / copyright中的
个别文件中有描述。
Debian GNU / Linux附带ABSOLUTELY NO WARRANTY，在适用法律允许的范围内
。
上次登录：周三4月1日00:24:44从sagemuej-aspire-5742g.localdomain
pi @ raspberrypi：〜$ ghci
GHCi，版本7.8.2：http://www.haskell.org/ghc/ ：？帮助
加载包ghc-prim ...链接... done。
加载包integer-gmp ...链接...完成。
正在加载软件包基础...链接...已完成。
Prelude> ：m + Data.Vector
Prelude Data.Vector> fromList [1,2,3]
加载package array-0.5.0.0 ...链接... done。
加载package deepseq-1.3 .0.2 ...链接... done。
加载package primitive-0.5.2.1 ...链接... done。
加载package vector-0.10.9.1 ..链接...完成。
fromList [1,2,3]
Ain'它很好吗？
这是一个完整的GHC 7.8。不过，我不得不从源码引导它。如果我正确记得，正常的设置说明工作得很好–尽管花费了很长时间才建立起来（比如，半个星期的时间）。
主要的问题是内存：对于一些较大的模块，编译器需要比π可以提供的更多，即使在没有X的情况下运行。我所做的只是简单地连接了一个USB硬盘驱动器并在其上设置了一个交换分区。当然，交换使一切变得更慢，但最终它会成功。至少对我来说是这样。
I'm working on a few haskell projects that run on a raspberry pi 2 and the version of ghc that you can install with apt-get from raspbian (7.4.1). It has no GHCi though, which prevents some vital packages (like Vector) from compiling. I've seen a few rumors about being able to get later versions of ghc (with ghci) onto the pi, but nothing recent. The entry on the haskell wiki looks a couple years out of date. Has anyone had any luck with this?
I have had some luck with this!
sagemuej@sagemuej-Aspire-5742G:~$ ssh pi-loc
Linux raspberrypi 3.12.28+ #709 PREEMPT Mon Sep 8 15:28:00 BST 2014 armv6l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Wed Apr 1 00:24:44 2015 from sagemuej-aspire-5742g.localdomain
pi@raspberrypi:~$ ghci
GHCi, version 7.8.2: 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> :m +Data.Vector
Prelude Data.Vector> fromList [1,2,3]
Loading package array-0.5.0.0 ... linking ... done.
Loading package deepseq-1.3.0.2 ... linking ... done.
Loading package primitive-0.5.2.1 ... linking ... done.
Loading package vector-0.10.9.1 ... linking ... done.
fromList [1,2,3]
Ain't it nice?
It is a full GHC 7.8. I had to bootstrap it from source, though. Worked pretty fine by the normal setup instructions if I recall correctly – though it took ages to build (like, half a week).
The main issue is memory: for some of the larger modules, the compiler needs more than the π can offer even when running without X. What I did was simply, I connected a USB hard drive and set up a swap partition on it. Of course, swapping makes everything even slower, but eventually it'll succeed. Did for me, at least.
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