[polly] move detection of polly libs to LLVM

[Chandler Carruth]

On Wed, Mar 12, 2014 at 2:21 PM, Sebastian Pop <spop at codeaurora.org> wrote:

> Chandler Carruth wrote:
> > Why is this needed? I would really rather these stay isolated in polly...
>
> We need this to statically link polly into tools like opt.
>
> If we only link LLVMPolly.a against the libs required by polly, linking
> LLVMPolly.a into the tools, the linker complains about missing symbols.
> This does not happen when linking into the tools both LLVMPolly.a and the
> required polly libs.


CMake should be perfectly capable of sustaining transitive deps so that if
the tolo deps on the archive, the tool links against the libraries.
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