[cfe-dev] search CPATH, C_INCLUDE_PATH, etc patch

[Sam Bishop]

Hi, all.

The attached patch implements a FIXME in clang.cpp.  Certain environment
variables are searched for include paths, depending on which language is
being targeted.  What I used for a "spec" was gcc's behavior and
documentation, but I'm pretty sure I got it right.

The patch is relative to the base llvm directory.

Thanks,
Sam Bishop
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