OS X Terminal/iTerm powerline separators not showing properly

[giorni]

I installed emacs-mac-port, Spacemacs, Source Code Pro font and I am using it on my terminal. Character encoding is Unicode (UTF-8) and terminal type is xterm-256colors. The separators, when loading on terminal, aren't rendered correctly. This is how it is looking right now:

And this is *Messages*, there isn't *Warnings*:

Loading /Users/giorni/.emacs.d/core/core-load-paths.el (source)...done
Loading /Users/giorni/.spacemacs...done
(Spacemacs) Warning: Cannot find font "Source Code Pro"!
Mark set
Loading /Users/giorni/.emacs.d/.cache/spacemacs-buffer.el (source)...done
Loading /Users/giorni/.emacs.d/spacemacs/funcs.el (source)...done
Loading /Users/giorni/.emacs.d/spacemacs/config.el (source)...done
Loading /Users/giorni/.emacs.d/contrib/!lang/emacs-lisp/config.el (source)...done
Loading /Users/giorni/.emacs.d/spacemacs/packages.el (source)...done
Loading /Users/giorni/.emacs.d/spacemacs/extensions.el (source)...done
Loading /Users/giorni/.emacs.d/contrib/osx/packages.el (source)...done
Loading /Users/giorni/.emacs.d/contrib/!lang/emacs-lisp/packages.el (source)...done
Loading /Users/giorni/.emacs.d/contrib/!lang/emacs-lisp/extensions.el (source)...done
Loading /Users/giorni/.emacs.d/spacemacs/keybindings.el (source)...done
Loading /Users/giorni/.emacs.d/contrib/osx/keybindings.el (source)...done
Loading /Users/giorni/.emacs.d/.cache/recentf...done
Start checking for new version...
ad-handle-definition: `find-function-search-for-symbol' got redefined
Open the quickhelp.
Spacemacs is ready.
ad-handle-definition: `tramp-read-passwd' got redefined
g g
Error during redisplay: (eval (spacemacs/mode-line-prepare)) signaled (args-out-of-range 1 1252)

[syl20bnr]

You have to use a patched font for powerline: https://github.com/powerline/fonts
And set this font for non ASCII characters in your iTerm2 conifg, should work.

[syl20bnr]

I flag it as documentation to explicitly mention this in the doc.

[giorni]

Thanks @syl20bnr. Working perfectly now.