Thanks Sean, I'll take a look. On Wed, Sep 8, 2010 at 4:56 PM, Sean McBride <[email protected]>wrote:
> On Tue, 17 Aug 2010 15:11:12 -0400, Dave Partyka said: > > >I just upaded VTK's netcdf from 3.6.2 to 4.1.1. In addition to the > >traditional C library I have also brought in the C++ version of the > library > >(vtkNetCDF_cpp). I spent time creating the proper DLL exports, allowing > even > >Windows developers to use the library! This provides a nicer API that > >developers can use when writing new netcdf readers/writers. Also with > netcdf > >4.x we can now potentially use HDF5 based NetCDF files. See here for the > >release notes for NetCDF 4. As always we value feedback from the > community, > >feel free to report any issues. In the mean time I will be monitoring the > >dashboards. > > Dave, > > I believe there is some mangling missing after your change. I just > pulled VTK from git and my app, which links to both NetCDF and VTK, no > longer links. Error is: > > ld: duplicate symbol _nc_inq_type in /path1/libnetcdf.a(nc.o) and /path2/ > libvtkNetCDF.a(nc.c.o) > > If I do the following: > > nm libvtkNetCDF.a | grep " [TRD] " > > It lists several symbols that aren't prefixed by vtk_netcdf, namely: > > 0000000000003083 T _nc_inq_type > 0000000000000043 T _nextUTF8 > 00000000000008ae T _nulldup > 00000000000018ae T _utf8proc_NFC > 0000000000001860 T _utf8proc_NFD > 000000000000194a T _utf8proc_NFKC > 00000000000018fc T _utf8proc_NFKD > 0000000000001998 T _utf8proc_check > 0000000000000343 T _utf8proc_codepoint_valid > 0000000000000fd1 T _utf8proc_decompose > 00000000000005d9 T _utf8proc_decompose_char > 00000000000003c6 T _utf8proc_encode_char > 0000000000000000 T _utf8proc_errmsg > 000000000000054b T _utf8proc_get_property > 00000000000000cf T _utf8proc_iterate > 000000000000172b T _utf8proc_map > 000000000000126a T _utf8proc_reencode > > nc_inq_type certainly should be in vtk_netcdf_mangle.h, not sure why/how > you missed it. My experience with updating VTK's freetype is that one > must regenerate the symbol list on all the major platforms and merge the > results. Some symbols seem to only be exported on some OSes, see my > comments in vtk_freetype_mangle.h. > > Not sure about the other symbols. "utf8proc" looks like 3rd party code > used by NetCDF itself. I wonder if these symbols should not be exported > at all, I'm guessing they are not part of NetCDF's public API. > > Cheers, > > -- > ____________________________________________________________ > Sean McBride, B. Eng [email protected] > Rogue Research www.rogue-research.com > Mac Software Developer Montréal, Québec, Canada > > >
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