Fixes LLVM library detection.

I must have had a dirty cmake configuration which didn't encounter this issue.
Make sure we are using LLVM_DEFINITIONS to know where we are linking to libraries at.
Link against libLLVM-${VERSION}, the other one was linking us against static libraries...

CMakeLists.txt

@@ -411,6 +411,7 @@ if(NOT ANDROID)
 		set(HAS_LLVM 1)
 
 		include_directories(${LLVM_INCLUDE_DIRS})
+		add_definitions(${LLVM_DEFINITIONS})
 
 		message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
 	endif()