Hi Heiko: Funny, I'm just trying to get PDL::NetCDF to compile against
netcdf 4.2 and am running into the same problem. It would be nice to not
have to install HDF to get a working netcdf. Some solution like yours (or
just moving netcdf4 functions back out of netcdf.h) would be welcome!
--Doug
dhunt@xxxxxxxx
Software Engineer
UCAR - COSMIC, Tel. (303) 497-2611
On Thu, 26 Apr 2012, Heiko Klein wrote:
Hi,
since netcdf-4.1.2, the netcdf.h file declares all netcdf4 functions, like
nc_def_var_deflate and NC_NETCDF4, even if the library was compiled without
hdf5 support, and does not have these functions.
I have code like
#ifdef NC_NETCDF4
nc_def_var_deflate(...)
#endif
which worked perfectly with netcdf3 and netcdf4 until 4.1.1. Since netcdf
4.1.2, this code compiles still, but when the netcdf-library was not compiled
with hdf5 support, the code won't link with the library.
This means, that netcdf since 4.1.2 has a single API, but has different ABIs
depending on netcdf-configure flags. I would suggest adding the 'Extra
netcdf4 stuff.' function calls to the netcdf3 code, even if they are empty,
e.g.
int
nc_def_var_deflate(int ncid, int varid, int shuffle, int deflate,
int deflate_level)
{
return NC_NOERR;
}
Best regards,
Heiko
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