git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/feature-llvm@1050 c0027639-9190-0b57-01eb-f09a03790dae


git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/feature-llvm@1052 c0027639-9190-0b57-01eb-f09a03790dae


git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/llvm@1054 c0027639-9190-0b57-01eb-f09a03790dae


git-svn-id: https://roadrunnerlib.googlecode.com/svn/branches/feature-llvm@1055 c0027639-9190-0b57-01eb-f09a03790dae
new cmake file to determine if we have llvm