Update

[ghstack-poisoned]

Author: mcr229

backends/xnnpack/cmake/Dependencies.cmake

@@ -68,10 +68,12 @@ install(TARGETS xnnpack-microkernels-prod
 
 
 if(EXECUTORCH_XNNPACK_ENABLE_KLEIDI)
-    install(TARGETS kleidiai
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+    IF(TARGET kleidiai)
+        install(TARGETS kleidiai
+            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+            PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+    ENDIF()
 endif()
 
 # Revert PIC Flag to what it originally was