安装IJulia的错误:自制和Nettle

Question

最近，我尝试在OSX10.6.8上安装IJulia，使用JuliaV0.2.1。安装IPython后，我运行Pkg.build("IJulia")并获得以下控制台错误：

julia> Pkg.build("IJulia")
INFO: Building Homebrew
INFO: Cloning brew from https://github.com/staticfloat/homebrew.git
Cloning into '/Users/peterrichter/.julia/v0.2/Homebrew/deps/usr'...
dyld: Library not loaded: /usr/lib/libcurl.4.dylib
  Referenced from: /Applications/Julia-0.2.1.app/Contents/Resources/julia/libexec/git-core/git-remote-https
  Reason: Incompatible library version: git-remote-https requires version 7.0.0 or later, but libcurl.4.dylib provides version 6.0.0
==============================[ ERROR: Homebrew ]===============================

brew_prefix! not defined
at /Users/peterrichter/.julia/v0.2/Homebrew/src/Homebrew.jl:200
at /Users/peterrichter/.julia/v0.2/Homebrew/deps/build.jl:1

================================================================================

它似乎在抱怨旧版本的libcurl (?)，但是当我在终端运行curl -V时，它说我使用curl 7.19.7。同样，执行ipython --version显示我使用的是2.0.0，这是IPython的最新版本。我是不是误读了错误信息？如果是的话，我应该采取哪些措施来解决这个问题？

附加错误

除了上面粘贴的错误文本之外，它还打印了以下内容：

INFO: Building Nettle
INFO: Attempting to Create directory /Users/peterrichter/.julia/v0.2/Nettle/deps/downloads
INFO: Directory /Users/peterrichter/.julia/v0.2/Nettle/deps/downloads already created
INFO: Downloading file http://www.lysator.liu.se/~nisse/archive/nettle-2.7.1.tar.gz
INFO: Done downloading file http://www.lysator.liu.se/~nisse/archive/nettle-2.7.1.tar.gz
INFO: Attempting to Create directory /Users/peterrichter/.julia/v0.2/Nettle/deps/src
INFO: Directory /Users/peterrichter/.julia/v0.2/Nettle/deps/src already created
INFO: Attempting to Create directory /Users/peterrichter/.julia/v0.2/Nettle/deps
INFO: Directory /Users/peterrichter/.julia/v0.2/Nettle/deps already created
INFO: Attempting to Create directory /Users/peterrichter/.julia/v0.2/Nettle/deps/src/nettle-2.7.1
INFO: Directory /Users/peterrichter/.julia/v0.2/Nettle/deps/src/nettle-2.7.1 already created
INFO: Attempting to Create directory /Users/peterrichter/.julia/v0.2/Nettle/deps/builds/nettle
INFO: Directory /Users/peterrichter/.julia/v0.2/Nettle/deps/builds/nettle already created
INFO: Changing Directory to /Users/peterrichter/.julia/v0.2/Nettle/deps/builds/nettle
checking build system type... x86_64-apple-darwin10.8.0
checking host system type... x86_64-apple-darwin10.8.0
checking for -R flag... none
Searching for libraries
checking /Users/peterrichter/.julia/v0.2/Nettle/deps/usr/lib... not found
checking /usr/local/lib... added
checking /sw/local/lib... not found
checking /sw/lib... not found
checking /usr/gnu/lib... not found
checking /opt/gnu/lib... not found
checking /sw/gnu/lib... not found
checking /usr/freeware/lib... not found
checking /usr/pkg/lib... not found
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in `/Users/peterrichter/.julia/v0.2/Nettle/deps/builds/nettle':
configure: error: C compiler cannot create executables
See `config.log' for more details
===============================[ ERROR: Nettle ]================================

failed process: Process(`/Users/peterrichter/.julia/v0.2/Nettle/deps/src/nettle-2.7.1/configure --disable-openssl --libdir=/Users/peterrichter/.julia/v0.2/Nettle/deps/usr/lib --prefix=/Users/peterrichter/.julia/v0.2/Nettle/deps/usr`, ProcessExited(77)) [77]
at /Users/peterrichter/.julia/v0.2/Nettle/deps/build.jl:35

================================================================================
INFO: Building ZMQ
INFO: Building IJulia
Found IPython version 2.0.0 ... ok.
Creating julia profile in IPython...
(Existing KernelManager.kernel_cmd setting in ipython_config.py is untouched.)
(Existing IPythonWidget.execute_on_complete_input setting in ipython_qtconsole_config.py is untouched.)
(Existing FrontendWidget.lexer_class setting in ipython_qtconsole_config.py is untouched.)
(Existing NotebookApp.port setting in ipython_notebook_config.py is untouched.)
(Existing ipynblogo.png file untouched.)
(Existing ipynblogo.svg file untouched.)
(Existing favicon.ico file untouched.)
(Existing custom.js file untouched.)
(Existing julia.js file untouched.)

================================[ BUILD ERRORS ]================================

WARNING: Homebrew and Nettle had build errors.

 - packages with build errors remain installed in /Users/peterrichter/.julia/v0.2
 - build a package and all its dependencies with `Pkg.build(pkg)`
 - build a single package by running its `deps/build.jl` script

================================================================================

Answer 1

看起来您没有安装C编译器，所以Pkg.add在某些IJulia的nettle依赖项上失败了。

但是，您的第一个错误依赖项似乎是您的julia发行版的捆绑git实现与系统提供的库之间的链接冲突。

您可以确切地看到git应用程序与otool一起使用的共享库。

otool -L /Applications/Julia-0.2.1.app/Contents/Resources/julia/libexec/git-core/git-remote-https

这应该列出git远程https二进制文件链接到的libcurl dylib的完整路径。

您可以将其与otool -L $(which curl)的输出进行比较，并查看它们是否链接到同一个库。

您还可以在引用的库本身上运行otool -L，以查看它们是什么版本。这至少应该告诉你冲突是什么。您可能需要升级您的julia发行版所使用的git版本。但我不确定那里会牵涉到什么。我只是从源头安装julia，它绕过了这个特殊的问题。

你可能会发现做同样的事情更容易。

Answer 2

对我起作用的可能对你有帮助:使用最新的Anaconda免费python，从github下载windows32 exe文件并解压缩，启动julia.bat，然后在朱莉娅命令窗口中键入Pkg.add("IJulia")，在另一个命令窗口中键入ipython笔记本-profile= Julia，并享受在默认浏览器(Chrome)中打开的网页！我遇到了麻烦，因为-profile=julia命令部分的语法。

Answer 3

我也是用macport而不是家用的。我似乎通过将~/..julia/v0.3/Nettle/deps/build.jl中的第21、22行更改为：

libdirs = String["$(julia_usrdir)/lib"; "/opt/local/lib"]
includedirs = String["$(julia_usrdir)/include"; "/opt/local/include"]

也就是说，我添加了macports并显式地包含了dir。

有人能通知有关部门吗，干杯。