cmake: specify build and install interface for XNNPACK

Author: Connor Baker

CMakeLists.txt

@@ -774,7 +774,8 @@ TARGET_INCLUDE_DIRECTORIES(packing PRIVATE include src)
 TARGET_INCLUDE_DIRECTORIES(logging PRIVATE include src)
 IF(XNNPACK_BUILD_LIBRARY)
   TARGET_INCLUDE_DIRECTORIES(XNNPACK PUBLIC
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:include>)
   TARGET_INCLUDE_DIRECTORIES(XNNPACK PRIVATE src)
   TARGET_INCLUDE_DIRECTORIES(allocator PRIVATE include src)
   TARGET_INCLUDE_DIRECTORIES(cache PRIVATE include src)
@@ -785,15 +786,13 @@ IF(XNNPACK_BUILD_LIBRARY)
   TARGET_INCLUDE_DIRECTORIES(operator-utils PRIVATE include src)
   TARGET_INCLUDE_DIRECTORIES(memory PRIVATE include src)
   TARGET_INCLUDE_DIRECTORIES(mutex PRIVATE include src)
-  TARGET_INCLUDE_DIRECTORIES(post-operation PUBLIC
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-    src)
+  TARGET_INCLUDE_DIRECTORIES(post-operation PUBLIC include src)
   IF(WIN32)
     # Target Windows 7+ API
     TARGET_COMPILE_DEFINITIONS(XNNPACK PRIVATE _WIN32_WINNT=0x0601)
     TARGET_COMPILE_DEFINITIONS(mutex PRIVATE _WIN32_WINNT=0x0601)
   ENDIF()
-  SET_TARGET_PROPERTIES(XNNPACK PROPERTIES PUBLIC_HEADER include/xnnpack.h)
+  SET_TARGET_PROPERTIES(XNNPACK PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/include/xnnpack.h")
 ENDIF()
 
 # ---[ Find libm