diff --git a/cmake/external/cusparselt.cmake b/cmake/external/cusparselt.cmake
index d1a320f8a4ff8a3dae0aa95db5f5bbc11beca32b..41d7bf23c3e7fe386fc52fdc7a901e76fcc99f13 100644
--- a/cmake/external/cusparselt.cmake
+++ b/cmake/external/cusparselt.cmake
@@ -65,16 +65,13 @@ function(download_cusparselt)
   endif()
 endfunction()
 
-find_file(
-  LOCAL_CUSPARSELT_LIB_ZIP
-  NAMES ${CUSPARSELT_CACHE_FILENAME}
-  PATHS ${CUSPARSELT_DOWNLOAD_DIR}
-  NO_DEFAULT_PATH)
-
-if(LOCAL_CUSPARSELT_LIB_ZIP)
+if(EXISTS ${CUSPARSELT_DOWNLOAD_DIR}/${CUSPARSELT_CACHE_FILENAME})
   file(MD5 ${CUSPARSELT_DOWNLOAD_DIR}/${CUSPARSELT_CACHE_FILENAME}
        CUSPARSELT_MD5)
-  if(NOT CUSPARSELT_MD5 EQUAL CUSPARSELT_URL_MD5)
+  if(NOT CUSPARSELT_MD5 STREQUAL CUSPARSELT_URL_MD5)
+    # clean build file
+    file(REMOVE_RECURSE ${CUSPARSELT_PREFIX_DIR})
+    file(REMOVE_RECURSE ${CUSPARSELT_INSTALL_DIR})
     download_cusparselt()
   endif()
 else()
diff --git a/cmake/external/lapack.cmake b/cmake/external/lapack.cmake
index 78c2659a58504e91a3d65f36b39c9a501bd9133f..1b5032ab6ff1b409110eb10c14eadb685767eb87 100644
--- a/cmake/external/lapack.cmake
+++ b/cmake/external/lapack.cmake
@@ -81,16 +81,13 @@ function(download_lapack)
   endif()
 endfunction()
 
-find_file(
-  LOCAL_LAPACK_LIB_ZIP
-  NAMES ${LAPACK_FILE}
-  PATHS ${LAPACK_DOWNLOAD_DIR}
-  NO_DEFAULT_PATH)
-
 # Download and check lapack.
-if(LOCAL_LAPACK_LIB_ZIP)
+if(EXISTS ${LAPACK_DOWNLOAD_DIR}/${LAPACK_FILE})
   file(MD5 ${LAPACK_DOWNLOAD_DIR}/${LAPACK_FILE} LAPACK_MD5)
-  if(NOT LAPACK_MD5 EQUAL LAPACK_URL_MD5)
+  if(NOT LAPACK_MD5 STREQUAL LAPACK_URL_MD5)
+    # clean build file
+    file(REMOVE_RECURSE ${LAPACK_PREFIX_DIR})
+    file(REMOVE_RECURSE ${LAPACK_INSTALL_DIR})
     download_lapack()
   endif()
 else()
diff --git a/cmake/external/mklml.cmake b/cmake/external/mklml.cmake
index 801cab62facbb764029bd3b37d3e4d33c183f4ad..d5e3fa16bf0e2581f7a9ce52d2302dd976f0d9ca 100644
--- a/cmake/external/mklml.cmake
+++ b/cmake/external/mklml.cmake
@@ -71,16 +71,13 @@ function(download_mklml)
   endif()
 endfunction()
 
-find_file(
-  LOCAL_MKLML_LIB_ZIP
-  NAMES ${MKLML_FILE}
-  PATHS ${MKLML_DOWNLOAD_DIR}
-  NO_DEFAULT_PATH)
-
 # Download and check mklml.
-if(LOCAL_MKLML_LIB_ZIP)
+if(EXISTS ${MKLML_DOWNLOAD_DIR}/${MKLML_FILE})
   file(MD5 ${MKLML_DOWNLOAD_DIR}/${MKLML_FILE} MKLML_MD5)
-  if(NOT MKLML_MD5 EQUAL MKLML_URL_MD5)
+  if(NOT MKLML_MD5 STREQUAL MKLML_URL_MD5)
+    # clean build file
+    file(REMOVE_RECURSE ${MKLML_PREFIX_DIR})
+    file(REMOVE_RECURSE ${MKLML_INSTALL_DIR})
     download_mklml()
   endif()
 else()
diff --git a/cmake/external/onnxruntime.cmake b/cmake/external/onnxruntime.cmake
index 43e67ff48c2c5c3eafd12a129dd7073dd5cd42a1..57969e8c76c8e9164281c10d6a58f22166c97476 100644
--- a/cmake/external/onnxruntime.cmake
+++ b/cmake/external/onnxruntime.cmake
@@ -129,16 +129,13 @@ function(download_onnxruntime)
   endif()
 endfunction()
 
-find_file(
-  LOCAL_ONNXRUNTIME_LIB_ZIP
-  NAMES ${ONNXRUNTIME_CACHE_FILENAME}
-  PATHS ${ONNXRUNTIME_DOWNLOAD_DIR}
-  NO_DEFAULT_PATH)
-
-if(LOCAL_ONNXRUNTIME_LIB_ZIP)
+if(EXISTS ${ONNXRUNTIME_DOWNLOAD_DIR}/${ONNXRUNTIME_CACHE_FILENAME})
   file(MD5 ${ONNXRUNTIME_DOWNLOAD_DIR}/${ONNXRUNTIME_CACHE_FILENAME}
        ONNXRUNTIME_MD5)
-  if(NOT ONNXRUNTIME_MD5 EQUAL ONNXRUNTIME_URL_MD5)
+  if(NOT ONNXRUNTIME_MD5 STREQUAL ONNXRUNTIME_URL_MD5)
+    # clean build file
+    file(REMOVE_RECURSE ${ONNXRUNTIME_PREFIX_DIR})
+    file(REMOVE_RECURSE ${ONNXRUNTIME_INSTALL_DIR})
     download_onnxruntime()
   endif()
 else()