diff --git a/cmake-linux/gflags.cmake b/cmake-linux/gflags.cmake
index c13b422..5b6d98b 100644
--- a/cmake-linux/gflags.cmake
+++ b/cmake-linux/gflags.cmake
@@ -2,8 +2,8 @@ set(GFLAGS_ROOT_DIR ${LIB_BASE_DIR}/gflags-src)
 set(GFLAGS_BUILD_DIR ${LIB_BASE_DIR}/gflags-build)
 if(REBUILD)
     message(STATUS "${BoldGreen}Install GFLAGS to: ${GFLAGS_BUILD_DIR}${ColourReset}")
-    execute_process(
-            COMMAND rm -rf gflags-build && mkdir gflags-build &&
+    execute_process(COMMAND rm -rf ${GFLAGS_BUILD_DIR} && mkdir ${GFLAGS_BUILD_DIR})
+    execute_process(COMMAND
             cmake -DGFLAGS_NAMESPACE=google -DCMAKE_CXX_FLAGS=-fPIC -S ${GFLAGS_ROOT_DIR} -B ${GFLAGS_BUILD_DIR}
             WORKING_DIRECTORY ${LIB_BASE_DIR})
     execute_process(
diff --git a/cmake-linux/openfst.cmake b/cmake-linux/openfst.cmake
index f9b359b..87a57bc 100644
--- a/cmake-linux/openfst.cmake
+++ b/cmake-linux/openfst.cmake
@@ -16,21 +16,26 @@ include(glog)
 if(REBUILD)
     message(STATUS "${BoldGreen}Install openfst: ${GLOG_BUILD_DIR}${ColourReset}")
     #./configure --prefix=${openfst_SOURCE_DIR}/build --enable-static --disable-shared --with-pic
-    execute_process(COMMAND rm -rf ${openfst_BUILD} && mkdir -p ${openfst_BUILD})
+    execute_process(COMMAND rm -r ${openfst_BUILD} && mkdir ${openfst_BUILD})
     # patch补丁必须打，不然会报glog无法动态识别这个库的方法，导致链接不成功。
-    execute_process(
-            COMMAND cmake -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/patch/openfst ${LIB_BASE_DIR}/openfst-src
-            WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    )
-    execute_process(
-            COMMAND ./configure --prefix=${openfst_BUILD} --with-pic
-            WORKING_DIRECTORY ${LIB_BASE_DIR}/openfst-src)
-    execute_process(
-            COMMAND cmake --build . --target install
-            WORKING_DIRECTORY ${openfst_BUILD})
-    execute_process(
-            COMMAND cmake --install .
-            WORKING_DIRECTORY ${openfst_BUILD})
+    if(EXISTS ${openfst_BUILD})
+
+        execute_process(
+                COMMAND cmake -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/patch/openfst ${LIB_BASE_DIR}/openfst-src
+                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+        )
+        execute_process(
+                COMMAND ./configure --prefix=${openfst_BUILD} --with-pic
+                WORKING_DIRECTORY ${LIB_BASE_DIR}/openfst-src)
+        execute_process(
+                COMMAND cmake --build . --target install
+                WORKING_DIRECTORY ${openfst_BUILD})
+        execute_process(
+                COMMAND cmake --install .
+                WORKING_DIRECTORY ${openfst_BUILD})
+    else ()
+        message(FATAL_ERROR "${BoldRed}未创建文件夹${ColourReset}")
+    endif ()
 endif()
 
 # gflags和glog现在被我安装到了系统盘下/usr/lib/x86_64-linux-gnu