使用 GHC 构建 zlib 错误 [英] zlib build error with GHC
问题描述
我正在使用具有以下配置的虚拟机:
I'm using a VM with the following configuration:
- Arch Linux(3.0-ARCH 内核)
- GHC 7.0.3
- cabal 安装 0.10.2
- Cabal 库 1.10.1.0
当我尝试使用 cabal 构建 zlib 时...
When I try to build zlib using cabal...
$ cabal install zlib
我得到以下输出:
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
谁能解释一下这个构建错误?
Can anyone shed some light on this build error?
这是来自 Stream.hsc 的带有行号的片段:
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
推荐答案
由于某种原因，MIN_VERSION_base 宏没有被展开，因此预处理器看到条件 MIN_VERSION_base(4,4,0) 它当然无法处理.我还没有发现为什么宏没有扩展，但解决方法是
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
- 改为安装 zlib-0.5.3.1
- 解压 tarball 并编辑
Codec/Compression/Zlib/Stream.hsc以删除违规宏(您使用的是 7.0.3，因此您的基本版本是 4.3.1.0，您可以替换带有 0) 的宏
- install zlib-0.5.3.1 instead
- unpack the tarball and edit
Codec/Compression/Zlib/Stream.hscto 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)
经过一番摸索后，我发现要隐藏这些不供 hsc2hs 处理的预处理器指令，必须将它们屏蔽由一个额外的#".正在报告错误.
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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