[netCDF #NDT-203834]: building netcdf.dll 3.6.3 with mingw

> Full Name: Johnathan Cree
> Email Address: address@hidden
> Organization: PNNL
> Package Version: 3.6.3
> Operating System: Windows XP/Windows Server 2003
> Hardware:
> Description of problem:
> 
> I'm using pycdf to access the c netcdf functions and haven't had any
> problems in linux but when
> 
> I moved to the windows environment I ran into a few issues.
> 
> First when using the pre-build netcdf.dll from 3.6.1 I get an error
> when I try to open a file
> 
> larger than 2GB stating that argument list is too long.  I the
> proceeded to build using Visual
> 
> Studios and got a slew of errors using the project file provided.  I
> then tried to build 3.6.3
> 
> using VS and was successful and could open a file larger than 2GB
> without problems but ran into
> 
> the problem that I could not create a file.  I got an Invalid Argument
> error in this case.  (If you want more information on the above errors
> let me know)
> 
> Minwg via Msys sounded like a viable option for me.  I can build netcdf
> 3.6.3 successfully configures as:
> 
> ./configure --disable-f90 --disable-cxx --enable-largefile; make check
> 
> When I try to build the actual dll, configure it using:
> 
> ./configure --disable-f90 --disable-cxx  --enable-shared --enable-dll 
> --enable-largefile; make
> 
> check
> 
> I get build errors which are:
> 
> libtool: link warning: undefined symbols not allowed in i686-pc-minw32 shared 
> libraries
> posixio.c: In function 'fgrow':
> posixio.c:131: error: storage size of 'sb' isn't known
> posixio.c: In function 'fgrow2':
> posixio.c:162: error: storage size of 'sb' isn't known
> posixio.c: In function 'ncio_filesize':
> posixio.c:1648: error: storage size of 'sb' isn't known
> make[2]: ***[posixio.lo] Error 1
> 
> output of configure and make for building the dll are in the attached files
> Configure_disable_f90_disable_cxx_enable_largefile_dll.txt
> make_check_configure_disable_f90_disable_cxx_enable_largefile_dll.txt
> 
> Please let me know if you need anything else.  I am using the newest
> version of mingw and msys.
> 
> Thank you,
> 
> 

Howdy Johnathan!

The netCDF build is complex, and so is building a DLL under Cygwin. I have 
never successfully managed it for long. I don't know the answer to your 
specific question. 

Certainly, if I were to want to try such a thing again, I would do so with the 
latest and greatest netCDF code, which can be obtained here: 
ftp://www.unidata.ucar.edu/pub/netcdf/snapshot/netcdf-4-daily.tar.gz

Although the build has become much more complex with the addition of opendap 
and netCDF-4/HDF5, these features can be turned off in the configure 
(--disable-netcdf-4 --disable-opendap) and that will hide most of the new stuff.

But my first line of defense is the visual studio build for netCDF. If you want 
to do a visual studio build, use the solution file in the win32/NET directory 
of the distribution.

If you do get this working, a patch would help other netCDF users...

Thanks,

Ed

Ticket Details
===================
Ticket ID: NDT-203834
Department: Support netCDF
Priority: Normal
Status: Closed