Fix build if ITTAPI_SOURCE_DIR is specified (llvm#106924)

de92615 allows specifying the source directory of ittapi. This
change allows configuring the source directory of ittapi here as well.

(cherry picked from commit f8287f6)
(cherry picked from commit 755d8d0)

Author: Zentrik

llvm/lib/ExecutionEngine/IntelJITEvents/CMakeLists.txt

@@ -1,5 +1,8 @@
 include_directories( ${CMAKE_CURRENT_SOURCE_DIR}/.. )
-include_directories( ${PROJECT_BINARY_DIR}/ittapi/include/ )
+if(NOT DEFINED ITTAPI_SOURCE_DIR)
+    set(ITTAPI_SOURCE_DIR ${PROJECT_BINARY_DIR})
+endif()
+include_directories( ${ITTAPI_SOURCE_DIR}/ittapi/include/ )
 add_llvm_component_library(LLVMIntelJITEvents
   IntelJITEventListener.cpp
 

llvm/lib/ExecutionEngine/Orc/TargetProcess/CMakeLists.txt

@@ -6,7 +6,10 @@ set(intel_jit_profiling )
 if( LLVM_USE_INTEL_JITEVENTS )
   set(intel_jit_profiling IntelJITProfiling)
   include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../../IntelJITProfiling)
-  include_directories(${PROJECT_BINARY_DIR}/ittapi/include/ )
+  if(NOT DEFINED ITTAPI_SOURCE_DIR)
+      set(ITTAPI_SOURCE_DIR ${PROJECT_BINARY_DIR})
+  endif()
+  include_directories(${ITTAPI_SOURCE_DIR}/ittapi/include/ )
 endif()
 
 add_llvm_component_library(LLVMOrcTargetProcess