Re: [OctDev] Build problems with gcc 4.1

[Alexander B. <ab...@ma...>]

Hi Quentin,

I'm glad to see that my octcdf toolbox is included in the Fedora Core 5 
octave-forge package.
However, it seems that the package is not linked against the nc-dap 
library. Any call to the toolbox stops octave with a message like:

octave:1> example_netcdf
octave: symbol lookup error: 
/usr/libexec/octave/site/oct/api-v17/x86_64-unknown-linux-gnu/octave-forge/ov-netcdf.oct: 
undefined symbol: nc_create

Since the nc-dap library is included in FC5, I guess that this is not 
too difficult to fix. The configure script (main/octcdf/configure.add) 
should detect the the location of the nc-dap libraries using the 
ncdap-config script included in libnc-dap-devel.

Alternatively, octcdf can be linked against the NetCDF library, but this 
would reduce its functionality since only local files can be accessed 
with the NetCDF library. With nc-dap, local files and data sets on a 
OpenDAP server can be imported in octave.

Thanks and regards
Alex

Quentin Spencer wrote:
> I'm in the process of trying to get octave-forge to build with 2.9.4 
> for the upcoming Fedora Core 5, which will be using gcc 4.1. I finally 
> got everything patched so it will build on Fedora Core 4 (gcc 4.0), 
> but on the FC5 test release with gcc, it still fails. It appears that 
> there are quite a lot of errors in the fixed point code, but I haven't 
> had time to try debugging it. This is likely because gcc 4.1 is more 
> strict in enforcing C++ standards. Anyway, I thought I'd send out a 
> notice about this in case someone feels like figuring out what needs 
> to be fixed in the fixed point code.
>
> -Quentin
>
>
>
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-- 
_______________________________________________________________

  Alexander Barth

  Ocean Circulation Group
  University of South Florida
  College of Marine Science
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