GHC的zlib生成错误 [英] zlib build error with GHC

问题描述

• Arch Linux（3.0-ARCH内核）


• GHC 7.0.3
  
• cabal-install 0.10.2


• Cabal库1.10.1.0





当我尝试使用cabal来构建zlib时...

  $ cab $ install zlib 
  

我得到以下输出：



 解决依赖关系... 
正在下载zlib-0.5.3.2 ... 
配置zlib-0.5.3.2 ... 
预处理库zlib-0.5.3.2 ... 
 Stream.hsc：86：21：错误：在令牌之前缺少二元运算符（
 Stream.hsc：在函数'main'中：
 Stream。 （
 Stream.hsc：86：21：错误：缺少令牌之前的二元运算符（
编译dist / build / Codec / Compression /Zlib/Stream_hsc_make.c失败（退出代码1）
命令是：/ usr / bin / gcc -c dist / build / Codec / Compression / Zlib / Stream_hsc_make.c -o dist / build / Codec / Co mpression / Zlib / Stream_hsc_make.o -fno-stack-protector -fno-stack-protector -D__GLASGOW_HASKELL __ = 700 -Dlinux_BUILD_OS -Dlinux_HOST_OS -Dx86_64_BUILD_ARCH -Dx86_64_HOST_ARCH -I / usr / lib / ghc-7.0.3 / bytestring-0.9.1.10 / include -I / usr / lib / ghc-7.0.3 / base-4.3.1.0 / include -I / usr / lib / ghc-7.0.3 / include -I / usr / lib / ghc-7.0.3 / include  - I / usr / lib / ghc-7.0.3 / include / 
 cabal：错误：某些软件包未能安装：
 zlib-0.5.3.2在构建阶段失败。例外情况是：
 ExitFailure 1 
  

任何人都可以看到这个构建错误吗？ / p>



---





编辑：以下是Stream.hsc中的代码段：

  82 import Foreign 
 83（Word8，Ptr，nullPtr，plusPtr，peekByteOff，pokeByteOff，mallocBy tes 
 84，ForeignPtr， FinalizerPtr，newForeignPtr_，addForeignPtrFinalizer 
 85，withForeignPtr，touchForeignPtr）
 86 #if MIN_VERSION_base（4,4,0）
 87 import Foreign.ForeignPtr.Unsafe（unsafeForeignPtrToPtr）
 88 import System.IO.Unsafe（unsafePerformIO）
 89 #else 
 90导入外部（unsafeForeignPtrToPtr，unsafePerformIO）
 91 #endif 
  




解决方案

预处理器看到条件 MIN_VERSION_base（4,4,0）它当然不能处理。我还没有发现为什么这个宏没有被扩展，但是变通方法是安装zlib-0.5.3.1而不是





1. >
   
2. 解开压缩包并编辑 Codec / Compression / Zlib / Stream.hsc 以移除违规宏（您正在使用7.0.3，所以你的基本版本是4.3.1.0，你可以用0替换宏）



编辑：我发现为了隐藏这些预处理器指令，这些指令并不适用于 hsc2hs 处理，它们必须被一个额外的'＃'掩盖。错误报告正在进行中。




I'm using a VM with the following configuration:

• Arch Linux (3.0-ARCH kernel)
• GHC 7.0.3
• cabal-install 0.10.2
• Cabal library 1.10.1.0

When I try to build zlib using cabal...

$ cabal install zlib

I get the following output:

Resolving dependencies...
Downloading zlib-0.5.3.2...
Configuring zlib-0.5.3.2...
Preprocessing library zlib-0.5.3.2...
Stream.hsc:86:21: error: missing binary operator before token "("
Stream.hsc: In function ‘main’:
Stream.hsc:86:21: error: missing binary operator before token "("
Stream.hsc:86:21: error: missing binary operator before token "("
compiling dist/build/Codec/Compression/Zlib/Stream_hsc_make.c failed (exit code 1)
command was: /usr/bin/gcc -c dist/build/Codec/Compression/Zlib/Stream_hsc_make.c -o dist/build/Codec/Compression/Zlib/Stream_hsc_make.o -fno-stack-protector -fno-stack-protector -D__GLASGOW_HASKELL__=700 -Dlinux_BUILD_OS -Dlinux_HOST_OS -Dx86_64_BUILD_ARCH -Dx86_64_HOST_ARCH -I/usr/lib/ghc-7.0.3/bytestring-0.9.1.10/include -I/usr/lib/ghc-7.0.3/base-4.3.1.0/include -I/usr/lib/ghc-7.0.3/include -I/usr/lib/ghc-7.0.3/include -I/usr/lib/ghc-7.0.3/include/
cabal: Error: some packages failed to install:
zlib-0.5.3.2 failed during the building phase. The exception was:
ExitFailure 1

Can anyone shed some light on this build error?

---

Edit: Here's a snippet from Stream.hsc with line numbers:

 82 import Foreign
 83          ( Word8, Ptr, nullPtr, plusPtr, peekByteOff, pokeByteOff, mallocBy    tes  
 84          , ForeignPtr, FinalizerPtr, newForeignPtr_, addForeignPtrFinalizer
 85          , withForeignPtr, touchForeignPtr )
 86 #if MIN_VERSION_base(4,4,0)
 87 import Foreign.ForeignPtr.Unsafe ( unsafeForeignPtrToPtr )
 88 import System.IO.Unsafe          ( unsafePerformIO )
 89 #else
 90 import Foreign ( unsafeForeignPtrToPtr, unsafePerformIO )
 91 #endif

解决方案

For some reason, the MIN_VERSION_base macro doesn't get expanded, thus the preprocessor sees the condition MIN_VERSION_base(4,4,0) which it of course cannot handle. I've not yet found out why the macro isn't expanded, but workarounds are

1. install zlib-0.5.3.1 instead
2. unpack the tarball and edit Codec/Compression/Zlib/Stream.hsc to remove the offending macro (you're using 7.0.3, so your base version is 4.3.1.0, you can replace the macro with 0)

Edit: After poking around a bit, I found out that to hide these preprocessor directives, which aren't intended for hsc2hs to process, they have to be masked by an extra '#'. Bug report underway.

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