diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4866b1cb3f8a7c32d3a0ad61360a89487614d755..db638532b275ffc6183b8dd56008cf47ec0efdee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,12 @@
 cmake_minimum_required(VERSION 3.20.0)
 
-include(cmake/Utils.cmake)
-include(cmake/Env.cmake)
+if(BUILD_AS_MAIN_PROJECT)
+  message(STATUS "drcmsg build as main project")
+  include(cmake/Utils.cmake)
+  include(cmake/Env.cmake)
+else()
+  message(STATUS "drcmsg build as sub project")
+endif()
 
 project(oblogmsg VERSION 3.2.1)
 
diff --git a/build.sh b/build.sh
index 0aa88a23337f064b183f7eb95782a1836dfb236a..977de31e278f7a005a656d7769bfa30ace2c3562 100755
--- a/build.sh
+++ b/build.sh
@@ -6,7 +6,7 @@ BUILD_SH=$TOPDIR/build.sh
 ALL_ARGS=("$@")
 DEP_DIR=${TOPDIR}/deps/3rd/usr/local/oceanbase/deps/devel
 TOOLS_DIR=${TOPDIR}/deps/3rd/usr/local/oceanbase/devtools
-CMAKE_COMMAND="${TOOLS_DIR}/bin/cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=1"
+CMAKE_COMMAND="${TOOLS_DIR}/bin/cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DBUILD_AS_MAIN_PROJECT=ON"
 
 echo "$0 ${ALL_ARGS[@]}"
 
@@ -137,4 +137,4 @@ function main
     esac
 }
 
-main "$@"
\ No newline at end of file
+main "$@"