Merge pull request #354 from TazeTSchnitzel/patch-2

Note that Command Line Tools for Xcode suffices

reference/compiling_for_osx.rst

@@ -13,7 +13,7 @@ required:
 
 -  Python 2.7+ (3.0 is untested as of now)
 -  SCons build system
--  XCode
+-  Xcode (or the more lightweight Command Line Tools for Xcode)
 
 Compiling
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