Allow to build the optimizations for llvm with cmake.

OK loong time ago from David.

opts/CMakeLists.txt

@@ -0,0 +1,22 @@
+add_llvm_loadable_module( libGNUObjCRuntime
+  ClassIMPCache.cpp
+  ClassMethodInliner.cpp
+  IvarPass.cpp
+  ObjectiveCOpts.cpp
+  TypeFeedbackDrivenInliner.cpp
+  ClassLookupCache.cpp
+  IMPCacher.cpp
+  LoopIMPCachePass.cpp
+  TypeFeedback.cpp
+)
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-variadic-macros -DLLVM_MAJOR=3 -DLLVM_MINOR=0")
+
+add_llvm_library_dependencies( libGNUObjCRuntime
+  LLVMAnalysis
+  LLVMCore
+  LLVMSupport
+  LLVMTarget
+  LLVMipa
+  LLVMipo
+)