[cfe-commits] [patch] a bit of refactoring in the include path code

[Rafael Espindola]

The attached patch adds a function AddGnuCPlusPlusIncludePaths to
factor out a bit of duplicated code.  The bits about FreeBsd and
DragonFly should be functionally equivalents, but I think they are
(and were) incomplete. Can someone with one of those systems verify
that the there is no such thing as

/usr/include/c++/4.2/*freebsd*

or

/usr/include/c++/4.1/*dragon*

Every other gnu libstdc++ installation uses a directory named after
the triple, that is why I find this strange.

Cheers,
-- 
Rafael Ávila de Espíndola
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