Networking 在win32/cygwin上编译haskell模块网络

我正在尝试在win32/cygwin上编译Network.HTTP（）。但是，它确实会失败，并显示以下消息：

Setup.hs: Missing dependency on a foreign library:
* Missing (or bad) header file: HsNet.h
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
If the header file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.

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不幸的是，它没有提供更多的线索。HsNet.h包括sys/uio.h，实际上不应该包括它，应该正确配置。

不要使用cygwin，而是按照下面的方法

安装MSYS

Install the latest Haskell Platform. Use the default settings.

Download version 1.0.11 of MSYS. You'll need the following files:
    MSYS-1.0.11.exe
    msysDTK-1.0.1.exe
    msysCORE-1.0.11-bin.tar.gz

The files are all hosted on haskell.org as they're quite hard to find in the official MinGW/MSYS repo.

Run MSYS-1.0.11.exe followed by msysDTK-1.0.1.exe. The former asks you if you want to run a normalization step. You can skip that.

Unpack msysCORE-1.0.11-bin.tar.gz into C:\msys\1.0. Note that you can't do that using an MSYS shell, because you can't overwrite the files in use, so make a copy of C:\msys\1.0, unpack it there, and then rename the copy back to C:\msys\1.0.

Add C:\Program Files\Haskell Platform\VERSION\mingw\bin to your PATH. This is neccesary if you ever want to build packages that use a configure script, like network, as configure scripts need access to a C compiler.

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这些步骤是Tibell用来为win编译网络包的，我自己也曾在大多数haskell平台版本上多次成功地使用过这些步骤。

可以在win32/cygwin上构建网络。上述步骤虽然有用（由Jonke完成），但可能并不必要

在执行配置步骤时，指定

runghc Setup.hs configure  --configure-option="--build=mingw32"

因此，库是为mingw32配置的，否则，如果您尝试链接或使用网络库，您将获得链接或“未定义的引用”。

结合@Yogesh Sajanikar的回答，使它对我有效（在win64/cygwin上）：

• 确保路径上的gcc不是Mingw/Cygwin，而是 C:\ghc\ghc-6.12.1\mingw\bin\gcc.exe

（运行

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在运行

cabal安装网络之前

在Cygwin shell中）

您的帖子说network.HTTP，但是您的url和引用是指向网络包的。我也成功地使用了MSYS2进行网络编译。以下是一些好的实践（包括MSYS2安装）：

export PATH="/cygdrive/.../ghc-7.8.2/mingw/bin:$PATH"