Compile SRILM

1. mkdir %SRILM%
2. mv srilm.tgz %SRILM%
3. cd %SRILM%
4. chmod -R 777 .
5. modify Makefile
    5.1 $ sbin/machine-type, suppose it returns i686
    5.2 in common/Makefile.machine.i686
          GCC_FLAGS = -m64 -mtune=i686 -Wreturn-type -Wimplicit
          insert NO_TCL = X
          delete TCL_INCLUDE, TCL_LIBRARY
6. make MACHINE_TYPE=i686-m64 World