[Pw_forum] How to modify code and recompile?

[ying.sun at gradmail.ims.uconn.edu]

         I want to modify a file in Quantum ESPRESSO, let it write out a
     matrix I want. It will be a minor modificataion.
         When I try to modify code, *.f90, it says read only and will not
    let me change it.  How to recompile it?
         Looks like in ABINIT , just modify the file and reissue "make
"will do.
         Any suggestions will be appreciated!!
         Thanks a lot!
        \
         Ying sun
         Institute of materials science
         university of connecticut