Fix typo in cmake/modules/CrossCompile.cmake

[Chris Bieneman via llvm-commits]

Tom,

It looks like your patch may be based on out-of-date sources. Did they come from a release branch?

In general this file is sadly in a perpetual state of not getting enough attention. I have grand plans for improving cross-compilation, and it is WAY better than it used to be, but I haven’t really had time to keep pushing ahead on it. There are no current clients of llvm_create_cross_target, but my hope is to combine that with the ExternalProject wrappers I implemented a few months back to have a better way of tracking dependencies between cross and host compilations.

-Chris

> On Jan 22, 2016, at 9:25 AM, Vedant Kumar via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> 
> It's strange that the 'toolchain' parameter is ignored. I can't find any users of llvm_create_cross_target. Do you know of any?
> 
> vedant
> 
>> On Jan 21, 2016, at 7:23 PM, Tom Birch via llvm-commits <llvm-commits at lists.llvm.org> wrote:
>> 
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