Update cpp_easygraph/CMakeLists.txt

Co-authored-by: Copilot <[email protected]>

Author: Nianle-Li

cpp_easygraph/CMakeLists.txt

@@ -47,7 +47,7 @@ find_package(Eigen3 QUIET)
 if(Eigen3_FOUND)
     message(STATUS "Found Eigen3: ${EIGEN3_INCLUDE_DIR}")
     include_directories(${EIGEN3_INCLUDE_DIR})
-    add_definitions(-DEIGEN_MAJOR_VERSION=${EIGEN3_VERSION_MAJOR})
+    add_definitions(-DEIGEN_WORLD_VERSION=${EIGEN3_VERSION_MAJOR})
 endif()
 
 # Enable OpenMP support