Index: lib/Target/PowerPC/CMakeLists.txt
--- lib/Target/PowerPC/CMakeLists.txt.orig
+++ lib/Target/PowerPC/CMakeLists.txt
@@ -42,6 +42,7 @@ add_llvm_target(PowerPCCodeGen
   PPCMacroFusion.cpp
   PPCMIPeephole.cpp
   PPCRegisterInfo.cpp
+  PPCReturnProtectorLowering.cpp
   PPCSubtarget.cpp
   PPCTargetMachine.cpp
   PPCTargetObjectFile.cpp
