Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
On 04/05/2011 06:36 AM, Ed Hartnett wrote:
marco atzeri<marco.atzeri@xxxxxxxxx> writes:Dear Developers, I just built netcdf-4.1.2 on cygwin, without fortran and c++ as they are broken compared to the previous 4.1.1, and I was surprised to see that the outcome dll is now cygnetcdf-7.dll instead of cygnetcdf-6.dll of 4.1.1 Have you made a abi bump between 4.1.1 and 4.1.2 ? If so should be better to change the release number ? Between 4.1.1 and 4.1.2 I would expect minor changes and bug fixes only.Howdy Marco, The library ABI number went up because we changed the main API (by adding the nc_inq_path function.) We did not change the library version number to 4.3 because this was such a minor addition. In general, the ABI version has nothing to do with the version number of the package. Thanks, Ed
My thoughts:- According to http://linuxtesting.org/upstream-tracker/versions/netcdf.html, the main ABI problems with going from 4.1.1 -> 4.1.2 was:
ncEnumType.h
namespace netCDF
[−] NcEnumType::ncEnumType (5)
Change Effect
1 Value of field nc_INT64 has been changed from 8 to 10. Applications may
execute another branch of library code.
2 Value of field nc_UBYTE has been changed from 5 to 7. Applications may
execute another branch of library code.
3 Value of field nc_UINT has been changed from 7 to 9. Applications may
execute another branch of library code.
4 Value of field nc_UINT64 has been changed from 9 to 11. Applications may
execute another branch of library code.
5 Value of field nc_USHORT has been changed from 6 to 8. Applications may
execute another branch of library code.
[+] affected symbols (1)NcGroup::addEnumType ( std::string const& name, NcEnumType::ncEnumType basetype ) const:
2nd parameter 'basetype' has type 'NcEnumType::ncEnumType'. Kind of scary when constants change values.- Adding a new function does not require bumping the soname version because that is still backwards compatible.
- Distribution and system maintainers must pay special attention to ABI compatibility. A significant version bump is a good indicator that this may happen and to look out for it. Conversely, "patch" level version changes are not expected to have ABI changes.
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