PW91c now working.
PW91c now working.

dftlibs/xcfun,robertodr/xcfun,dftlibs/xcfun,dftlibs/xcfun,robertodr/xcfun,bast/xcfun,robertodr/xcfun,bast/xcfun,bast/xcfun,dftlibs/xcfun,robertodr/xcfun,bast/xcfun