--- perf/CMakeLists.txt.orig	2023-05-25 10:34:56 UTC
+++ perf/CMakeLists.txt
@@ -29,8 +29,8 @@ set_target_properties(benchmerge PROPERTIES
     CXX_EXTENSIONS NO)
 
 
-ExternalProject_Get_property(proj_event_rules SOURCE_DIR)
-set(EVENT_RULES_SOURCE_DIR ${SOURCE_DIR})
+#ExternalProject_Get_property(proj_event_rules SOURCE_DIR)
+set(EVENT_RULES_SOURCE_DIR ${CMAKE_BINARY_DIR}/third_party/proj_event_rules)
 
 add_custom_target(run_benchmark
     COMMAND ${CMAKE_BINARY_DIR}/perf/benchmark
@@ -43,4 +43,4 @@ add_custom_target(run_benchmark
     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
 )
 
-add_dependencies(run_benchmark benchmark proj_event_rules)
+#add_dependencies(run_benchmark benchmark proj_event_rules)
