--- build/basics.rb	2022-03-14 17:51:02.031000000 +0000
+++ build/basics.rb	2022-03-14 17:51:15.647000000 +0000
@@ -50,7 +50,7 @@ PhusionPassenger::SharedConstants.consta
   Kernel.const_set(name, PhusionPassenger::SharedConstants.const_get(name))
 end
 
-if File.exist?("#{SOURCE_ROOT}/build/support/cxx_dependency_map.rb")
+if File.exist?("support/cxx_dependency_map.rb")
   require_build_system_file 'support/cxx_dependency_map'
 else
   CXX_DEPENDENCY_MAP = {}