[gradsusr] Grads 2.0.1 Compilation Problem

[Spencer Ogden]

I'm trying to get into grads for the analysis of ocean wind patterns. 
I've worked through a few compilation problems, but have hit a road 
block and I wasn't able to turn up any similar problems on Google.

I'm running on Gentoo and I have manually installed libpng 1.2.34 and 
g2clib 1.2.3. This has allowed configure to enable grib2 and netcdf. I'm 
running in to a problem with the compile though. When compiling gaio.c, 
NC_CHUNKED throws an error as an undeclared symbol. Seems like this 
could be a case of having the wrong version of a header, but I haven't 
been able to track down where I should start looking.

Thanks for any advice,

Spencer

Here's the last bit of ./configure:
+=========================================================================+
    GrADS 2.0.1 : Built Fri Feb 24 11:52:02 EST 2012 for i686-pc-linux-gnu
   
+=========================================================================+

   +-------------------------------+
   |                               |
   |  GrADS will be built with:    |
   |                               |
   |  - GUI disabled               |
   |  + readline enabled           |
   |  + geotiff enabled            |
   |  - shapefile disabled         |
   |  + printim enabled            |
   |  + grib2 enabled              |
   |  - hdf4 disabled              |
   |  + hdf5 enabled               |
   |  + netcdf-4 enabled           |
   |  - OPeNDAP disabled           |
   |                               |
   +-------------------------------+

`make` ouput:
gcc -DHAVE_CONFIG_H -I. -I. -I.  -I/usr/include      -I/usr/include     
-I/usr/include -I/usr/include/hdf    -g -O2 -rdynamic -c gaio.c
gaio.c: In function 'garead':
gaio.c:753:3: warning: format '%ld' expects type 'long int', but 
argument 4 has type 'size_t'
gaio.c:753:3: warning: format '%ld' expects type 'long int', but 
argument 4 has type 'size_t'
gaio.c: In function 'gancsetup':
gaio.c:2446:17: error: 'NC_CHUNKED' undeclared (first use in this function)
gaio.c:2446:17: note: each undeclared identifier is reported only once 
for each function it appears in
gaio.c:2462:3: warning: format '%ld' expects type 'long int', but 
argument 4 has type 'size_t'
gaio.c:2462:3: warning: format '%ld' expects type 'long int', but 
argument 4 has type 'size_t'
make[2]: *** [gaio.o] Error 1
make[2]: Leaving directory `/home/spencer/grads-2.0.1/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/spencer/grads-2.0.1/src'
make: *** [all-recursive] Error 1