不能用ghc-7.8构建lambdabot(@ haskell-src-exts)

Question

我试图lambdabot用ghc-7.8.2 安装,但在安装时遇到错误haskell-src-exts.为了诊断这个问题,我试过了

cabal install haskell-src-exts -v3

并得到以下错误.我使用的是Windows XP 64位.我不知道这是否与windows目录名中的空格有关.任何想法/指针如何解决问题？

...
[_18] next goal: array (dependency of haskell-src-exts-1.15.0.1)
[_18] trying: array-0.5.0.0/installed-d6d...
[_19] done
Ready to install haskell-src-exts-1.15.0.1
Extracting C:\Documents and Settings\ting\Application
Waiting for install task to finish...
Data\cabal\packages\hackage.haskell.org\haskell-src-exts\1.15.0.1\haskell-src-exts-1.15.0.1.tar.gz
to C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008...
Renaming
'C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008\haskell-src-exts-1.15.0.1\dist'
to
'C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008\haskell-src-exts-1.15.0.1\dist-tmp'.
creating
C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008\haskell-src-exts-1.15.0.1\dist
Renaming
'C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008\haskell-src-exts-1.15.0.1\dist-tmp'
to
'C:\DOCUME~1\ting\LOCALS~1\Temp\haskell-src-exts-1.15.0.1-3008\haskell-src-exts-1.15.0.1\dist'.
Failed to install haskell-src-exts-1.15.0.1
Last 10 lines of the build log ( C:\Documents and Settings\ting\Application Data\cabal\logs\haskell-src-exts-1.15.0.1.log ):
cabal.exe: C:\Documents and Settings\ting\Application
Data\cabal\logs\haskell-src-exts-1.15.0.1.log: does not exist

Answer 1

我想到了.我试图找到日志文件作为评论建议.但是,在cabal/log文件夹中,running cabal-install lambdabot在新ghc-7.8安装之后,hashtable和haskline只有两个日志文件.

要查看此错误是否与默认cabal目录中的空格有关,我使用了一个没有空格的文件夹并进行了手动安装:

$ cd /d/temp
$ cabal get haskell-src-exts
Unpacking to haskell-src-exts-1.15.0.1\
$ cd haskell-src-exts-1.15.0.1/ && cabal configure
Resolving dependencies...
[1 of 1] Compiling Main             ( dist\setup\setup.hs, dist\setup\Main.o )
Linking .\dist\setup\setup.exe ...
Configuring haskell-src-exts-1.15.0.1...
setup.exe: The program 'happy' version >=1.17 is required but it could not be
found.

因此,happy依赖性在某种程度上是由cabal遗漏和未被检测到的.事实证明happy使用默认cabal install命令也存在问题,可以通过手动安装来解决,例如/d/temp,

cabal get happy && cd happy* && cabal configure && cabal install

安装happy和执行相同操作以haskell-src-exts正确安装软件包.但是在安装lambdabot的过程中还有其他错误,其中任何一个似乎都不像这里遇到的haskell-src-exts和happy.