Makefile

I wanted to use C4.5 for my coreference resolution task. But there were some problems with the makefile of some library.

There were so many decision tree function library, and most of them were used under Unix. After I install the cygwin software I began to use them. But there were some problems of the makefile file. There were sme compile enviroment viriables that I could not understand completely.

This bottleneck must be solved tomorrow.