fix ci

Author: wuxianrong

.github/workflows/pika.yml

@@ -43,7 +43,10 @@ jobs:
 
       - name: Build
         # Build your program with the given configuration
-        run: cmake --build build --config ${{ env.BUILD_TYPE }}
+        run: |
+          cmake --build build --config ${{ env.BUILD_TYPE }}
+#          tail -n 50 buildtrees/Stamp/glog/glog-configure-err.log
+#          grep "cmake_minimum_required" buildtrees/Source/gflags/CMakeLists.txt
 
       - name: Cleanup
         run: |

CMakeLists.txt

@@ -191,6 +191,7 @@ ExternalProject_Add(gflags
   BUILD_ALWAYS
   1
   CMAKE_ARGS
+  -DCMAKE_POLICY_VERSION_MINIMUM=3.5
   -DCMAKE_INSTALL_PREFIX=${STAGED_INSTALL_PREFIX}
   -DCMAKE_BUILD_TYPE=${LIB_BUILD_TYPE}
   -DGFLAGS_NAMESPACE=gflags