fix aarch64 xpu compile

cmake/external/boost.cmake

@@ -25,7 +25,7 @@ set(BOOST_PROJECT       "extern_boost")
 
 set(BOOST_VER           "1.74.0")
 set(BOOST_TAR "boost_1_74_0" CACHE STRING "" FORCE)
-set(BOOST_URL "http://paddlepaddledeps.cdn.bcebos.com/${BOOST_TAR}.tar.gz" CACHE STRING "" FORCE)
+set(BOOST_URL "http://paddlepaddledeps.bj.bcebos.com/${BOOST_TAR}.tar.gz" CACHE STRING "" FORCE)
 
 MESSAGE(STATUS "BOOST_TAR: ${BOOST_TAR}, BOOST_URL: ${BOOST_URL}")
 

cmake/paddlepaddle.cmake

@@ -52,14 +52,20 @@ if (WITH_GPU)
 else()
     set(WITH_TRT OFF)
 endif()  
-
+#https://paddle-inference-lib.bj.bcebos.com/2.2.0-rc0/cxx_c/Linux/XPU/arm64_gcc7.3_openblas/paddle_inference_install_dir.tar.gz
 if (WITH_GPU)
     SET(PADDLE_LIB_VERSION "${PADDLE_VERSION}/cxx_c/Linux/GPU/${CUDA_SUFFIX}")
 elseif (WITH_LITE)
+    message("cpu arch: ${CMAKE_SYSTEM_PROCESSOR}")
     if (WITH_XPU)
+        if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86-64")
             SET(PADDLE_LIB_VERSION "x86-64_gcc8.2_avx_mkl")
+        elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
+            SET(PADDLE_LIB_VERSION "arm64_gcc7.3_openblas")
+        endif()
     else()
-        SET(PADDLE_LIB_VERSION "${PADDLE_VERSION}-${CMAKE_SYSTEM_PROCESSOR}")
+        MESSAGE("paddle lite lib is unknown.")
+        SET(PADDLE_LIB_VERSION "paddle-lite-unknown")
     endif()
 else()
     if (WITH_AVX)