wxHaskell 失败，因为它依赖于 wx_macu-2.8

Question

我使用 macports 安装 wxWidgets，然后运行命令： sudo cabal install wx 其输出包括：

/bin/sh: wxdirect: command not found
/bin/sh: wxdirect: command not found
/bin/sh: wxdirect: command not found
/bin/sh: wxdirect: command not found
Configuring wxcore-0.12.1.6...
setup: Missing dependency on a foreign library:
* Missing C library: wx_macu-2.8
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.
cabal: Error: some packages failed to install:
wx-0.12.1.6 depends on wxcore-0.12.1.6 which failed to install.
wxcore-0.12.1.6 failed during the configure step. The exception was:
ExitFailure 1

当我使用此命令时，我遇到了相同的错误： sudo cabal install wx --extra-include-dirs =/opt/local --extra-lib-dirs=/opt/local。我如何安装wx_macu-2.8，或者我需要做什么来解决这个问题？

Answer 1

这说明您缺少 C 库，而不是 Haskell 库。 Cabal 无法安装任意 C 库。

检查您的发行版的包管理器，以确保您拥有与 wxWidgets-2.8 相关的所有内容，包括任何开发人员包。