OSX 安装MacTex Emacs+Auctex

从stackoverflow上找到的，已经安装成功，借此留存下

Here's how I got Auctex to work with pure Emacs:

1. Install the MacTeX distribution package
2. Download OS X emacs, place in /Applications
3. Download the Auctex tarball

4. Go to the Auctex directory, configure with the command:

   ./configure --with-emacs=/Applications/Emacs.app/Contents/MacOS/Emacs --with-lispdir=/Applications/Emacs.app/Contents/Resources/site-lisp --with-texmf-dir=/usr/local/texlive/texmf-local
   

5. Execute:

   make; sudo make install
   

   to install the elisp files inside the Emacs.app, the info files to /usr/local/share/info, etc.

6. Edit your ~/.emacs file to load Auctex/preview-latex, and point Emacs to your Latex executables:

   (setenv "PATH" (concat "/usr/texbin:/usr/local/bin:" (getenv "PATH")))
   (setq exec-path (append '("/usr/texbin" "/usr/local/bin") exec-path))
   (load "auctex.el" nil t t)
   (load "preview-latex.el" nil t t)
   

7. Auctex and preview-latex should work now. One thing to keep in mind: with older versions of Auctex, the ps pathway seems to work better than pdf; if preview-latex images aren't appearing with the error "/typecheck in --setfileposition--", try disabling "Generate PDF" via "Menu Bar -> Command -> TeXing option".

Update: Steps (2--5) can be replaced with the Homebrew package manager:

brew install emacs --cocoa
brew install auctex

The other steps are still correct. The Emacs "Generate PDF" option now works for me

注意，其中在安装Auctex前，要先准备好环境变量，不然没法编译AucTex：