compiling source code!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hi I'm a new postgresql user. I wrote ACO (ant colony optimazition) and
want to replace it with GEQO in postres/src/backend/optimizer but I don't know how
to compile and run the source code :(
  
  I installed postgresql-8.1.3 and cygwin but I can not use them to
compile the source code. I want to compare GEQO and ACO optimizers performance using a small database
   
  Can you help me???????

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