Error when compile SMOKEv4.7

this is a bug (about which (some versions of) gfortran is more stuffy than ifort or pgif90).
Replace

/home/hdong/SMOKEv4.7/subsys/smoke/src/biog/normbeis361.f:163:22:
    INTEGER :: IS_AG, IS_TAG

with
LOGICAL :: IS_AG, IS_TAG