Adding new joining alghoritm to postgresql

Hi. I'm a little confused.   1.I have source code 9.2.4. version from http://www.postgresql.org/ftp/source/   2.I want to add new alghoritm to index nested loops join, merge join and hash join. I have Executor catalog in src catalag containing nodeHash.c, nodeHasjoin.c, nodeMergejoin and nodeNestloop.c   3.After changes, I want to compile postgresql and use it.   4.Problem is: a)I do not know which library is responsible for this functionality. I understand, that I have to compile src and replace library (I don't know which library) in path where Postgresql in installed: C:\Program Files (x86)\PostgreSQL\9.2   b)I don't know how use files/library (which library?) with visual studio 2010 and how compile it.   Thanks for you all answers.   Tom.