我想尝试使用 haskell 的 unicode,而 Data.Text 文档说我需要 text-icu。这是我尝试过的:
Mac OS X 10.6.8
~/haskell_programs$ cabal update
Downloading the latest package list from hackage.haskell.org
~/haskell_programs$ cabal install text-icu
Resolving dependencies...
Downloading text-icu-0.6.3.5...
Configuring text-icu-0.6.3.5...
cabal: Missing dependencies on foreign libraries:
* Missing C libraries: icui18n, icudata, icuuc
This problem can usually be solved by installing the system packages that
provide these libraries (you may need the "-dev" versions). If the libraries
are already installed but in a non-standard location then you can use the
flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are.
Failed to install text-icu-0.6.3.5
cabal: Error: some packages failed to install:
text-icu-0.6.3.5 failed during the configure step. The exception was:
ExitFailure 1
我发现了一个有同样问题的 Windows 用户的帖子。我真的需要出去安装那些 C 库吗?还是它们“错位”在我系统的某个地方?
谢谢。