netcdf-fortran nf90_put_var(ncid,varid,real)

[kgh03@…]

i've isolated this issue by compiling the example code simple_xy_wr.f90, ​http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-tutorial/simple_005fxy_005fwr_002ef90.html

changing the type of data_out from integer to real. when data_out is a real (array)

real, dimension(:,:), allocatable :: data_out

i get the following error:

 gfortran-mp-4.6  -I/opt/local/include -L/opt/local/lib -lnetcdf -lnetcdff   -o wr simple_xy_wr2.f90
simple_xy_wr2.f90:80.19:

       call check( nf90_put_var(ncid, varid, data_out) )
                   1
Error: There is no specific function for the generic 'nf90_put_var' at (1)

this code compiles fine on the linux boxes. but i get this error on lion, using gcc45 and gcc46.