[PATCH] [GraphWriter] Attempt to open .dot files with xdg-open/open first

[Adam Nemet]

In http://reviews.llvm.org/D6534#152294, @dberlin wrote:

> Just to note:
>  If you have word/libreoffice installed on a mac, this will now open
>  the .dot files in that instead of say, preview (which supports it) or
>  graphviz :(
>
> (Yeah, i know, i can reset the defaults for .dot files, but it
>  arbitrarily worked before)


I just ran into this too.  Danny, what did you have to do make this work?


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D6534

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/