[gradsusr] GRADS1.9 OS X compiling problem --- big endian vs. small endian

Arlindo da Silva dasilva at alum.mit.edu
Fri Feb 11 09:35:30 EST 2011


On Thu, Feb 10, 2011 at 3:15 PM, Malte Stuecker <malte.stuecker at gmail.com>wrote:

> Hi,
>
> I have a problem getting GRADS 1.9 running on my OS X 10.5 machine.
> I first downloaded the pre-compiled darwin version from the website and
> everything is running (incl. netcdf),
> however, on the starting screen GRADS states "big endian". The OSX 10.5 is
> small endian to my knowledge. I used the big endian grads version
> on some data files and everything seems working. Should I be  concerned
> that some data might be wrong because I am using a big endian software on a
> small endian machine?
>

This is probably a powerpc binary. I would not worry about it (much). Just
make sure that binary files have .ctl that explicitly states the endianess
of the file through the OPTIONS keywork.


> I also tried compiling the source files, however I can only get gradsc
> compiled and not netcdf, opendap etc, even though the libraries are in the
> standard directories.
>

Have you tried the opengrads binaries? There you will find an Intel Mac
build:

    http://sourceforge.net/projects/opengrads/files/grads1/1.10.r2/

The is version 1.10.r2.oga, which should have the same features of GrADS
v1.9 with the addition of the opengrads extensions.  More information here:


http://opengrads.org/wiki/index.php?title=Installing_the_OpenGrADS_Bundle

Unless you have a good reason for using grADS v1.x, I strong recommend you
upgrade to GrADS v2.

   Arlindo



-- 
Arlindo da Silva
dasilva at alum.mit.edu
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