Got rid of missing == op by using < op
Fix for FreeBSD : missed -lutil lib
Changes for cygwin
Fixed a compilation problem under cygwin/mingw
Fixed cygwin/mingw compilation
Added options to support OpenAL under cygwin/mingw
Fixed a few things to make VS compile under Cygwin with -mno-cygwin
Fixed a cygwin python detection problem
libutil doesn't exist anymore under Cygwin (since 1.3.25)
vs_path.* are not necessary anymore fixed openal detection