compiling gfortran -finit-integer=-9999999 -finit-real=snan -ffpe-trap=invalid,zero,overflow
and running raises SIGFPE in msk144sync.f90. both xcc(0) and xccs(0, *) are full with Nans signalling use of uninitialized variables. It isn't until the maxloc intrinsic is called that xcc(0) is read. Perhaps maxloc on line ~95 could be given a slice of xcc, or else xcc and xccs need to be explicitly initialized in index 0.
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