在Mac上装Octave时遇到一个问题，哪位大神能帮忙解决一下？感激不尽！
由 xuewenyuan 发布于 2014年08月24日 ｜ 更新于 2014年08月25日无人欣赏。
localhost:~ setsufumimoto$ brew install octave --without-docs
==> Installing octave dependency: epstool
==> Downloading http://mirror.cs.wisc.edu/pub/mirrors/ghost/ghostgum/epstool-3.0
Already downloaded: /Library/Caches/Homebrew/epstool-3.08.tar.gz
Error: SHA1 mismatch
Expected: dc495934f06d3ea8b3209e8b02ea96c66c34f614
Actual: 83cfacecf75ae85aa4b4cba34cfeac6284b0e4d7
Archive: /Library/Caches/Homebrew/epstool-3.08.tar.gz
To retry an incomplete download, remove the file above.
按照这个错误，epstool的hash对不上，这是自动下载的，还是你之前人工下载的？
如果是你人工下载的，可能你下载的和默认的版本不一致，所以就有这个结果？
可能是下载冲突，尝试sudo rm /Library/Caches/Homebrew/epstool-3.08.tar.gz，然后可以参考我写的安装指南http://sumnous.github.io/blog/2014/07/13/install_octave/，我也是折腾了一、两天才装好。。。
7楼 @xuewenyuan brew update，然后brew doctor，这两步有warning或者error吗？应该是homebrew的formula没有更新，如果更新好了应该没有问题，慢慢来，我也安了两天。。。
10楼 @xuewenyuan 可以试一下，一个类似的问题参考一下http://apple.stackexchange.com/questions/57172/homebrew-sha1-mismatch-even-after-update
11楼 @sumnous 姐姐，能再问你个问题吗？下边这个Warning提到的编译器怎么配置啊？
==> Building with an alternative Fortran compiler
This is unsupported.
Warning: No Fortran optimization information was provided. You may want to consider
setting FCFLAGS and FFLAGS or pass the --default-fortran-flags option to
brew install if your compiler is compatible with GCC.
If you like the default optimization level of your compiler, ignore this warning.
13楼 @xuewenyuan 建议删除然后重装一遍homebrew试试，ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
13楼 @xuewenyuan https://github.com/Homebrew/homebrew/wiki/FAQ这里有如何uninstall homebrew的方法，我觉得大部分你的问题应该可以通过重新安装homebrew解决，装完homebrew然后再按照我博客里写得一步一步来装octave，有问题可以再贴命令和完整的错误log上来
15楼 @sumnous 姐姐，我删除后重新安装Homebrew，然后brew doctor，出现这样一个警告，该怎么改啊？
Warning: Some directories in /usr/local/share/man aren't writable.
This can happen if you "sudo make install" software that isn't managed by Homebrew. If a brew tries to add locale information to one of these directories, then the install will fail during the link step.
You should probably chown them:
/usr/local/share/man/de
/usr/local/share/man/de/man1
17楼 @xuewenyuan 搜了一下sudo chown -R $USER /usr/local/share/man/de（Take ownership of it and everything in it），然后再brew doctor试试
18楼 @sumnous 姐姐，按octave时遇到个这问题，您再帮我看一下吧……
==> Installing octave dependency: pstoedit
==> Downloading https://downloads.sourceforge.net/project/pstoedit/pstoedit/3.62
Already downloaded: /Library/Caches/Homebrew/pstoedit-3.62.tar.gz
==> ./configure --prefix=/usr/local/Cellar/pstoedit/3.62_1
checking dynamic linker characteristics... darwin13.3.0 dyld
checking how to hardcode library paths into programs... immediate
checking whether make sets $(MAKE)... (cached) yes
checking for gs... no
configure: error: ** Cannot find ghostscript. If it is already installed, Check PATH.
20楼 @xuewenyuan brew install ghostscript，看是否安装，如果已经装好了但还出现这个问题，那就卸载brew uninstall ghostscript，再安装brew install ghostscript，一切都靠brew，一般brew doctor，brew update && brew upgrade都没问题了那就应该没什么问题，如果还遇到中断或者不成功，可以手动brew install '依赖'，然后再继续brew install octave