[PATCH] If building with LLVM_ENABLE_DOXYGEN with CMake then abort if Doxygen could not be found.

[Duncan P. N. Exon Smith]

I buy your logic; seems obvious.  LGTM.

On 2014 Apr 20, at 12:39, Dan Liew <dan at su-root.co.uk> wrote:

> If a user explicitly requests LLVM_ENABLE_DOXYGEN then the CMake
> configure should fail if it could not find Doxygen because failing as
> early as possible is desirable.
> 
> -- 
> Dan Liew
> PhD Student - Imperial College London
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