fix script issue

test=develop

paddle/fluid/operators/CMakeLists.txt

@@ -53,7 +53,7 @@ if (WITH_GPU)
         op_library(warpctc_op DEPS dynload_warpctc sequence_padding sequence_scale)
     endif()
     # conv_fusion_op needs cudnn 7 above
-    if (NOT ${CUDNN_MAJOR_VERSION} VERSION_LESS 7)
+    if (NOT ${CUDNN_VERSION} VERSION_LESS 7100)
         op_library(conv_fusion_op)
         file(APPEND ${pybind_file} "USE_CUDA_ONLY_OP(conv2d_fusion);\n")
     endif()

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -25,7 +25,7 @@ endif(NOT WITH_DISTRIBUTE)
 
 if (NOT ${WITH_GPU})
     LIST(REMOVE_ITEM TEST_OPS test_conv2d_fusion_op)
-elseif(${CUDNN_MAJOR_VERSION} VERSION_LESS 7)
+elseif(${CUDNN_VERSION} VERSION_LESS 7100)
     LIST(REMOVE_ITEM TEST_OPS test_conv2d_fusion_op)
 endif()