[GRASS-windows] Large file support?

[Jonathan Greenberg]

I remember having problems with LFS and GDAL when we were compiling 
starspan for windows use (starspan.casil.ucdavis.edu) -- I'll ask our 
lead programmer about that.  We used to have to use:

    export CPPFLAGS=-D_FILE_OFFSET_BITS=64
    export CXXFLAGS=-D_FILE_OFFSET_BITS=64
    export CFLAGS=-D_FILE_OFFSET_BITS=64

to get GDAL to compile with LFS correctly, although we haven't used that 
for a long time.

Unfortunately, its going to be difficult to get you a 7gb file -- is 
there any easy way to make a test image in GRASS with random values?  If 
so, you could export it to ENVI format via r.out.gdal and then re-import 
it via r.in.gdal.

The file system is definitely ntfs -- I routinely use > 4gb files 
through ENVI on these same systems.

Again, has *anyone* besides me performed a > 4gb import via r.in.gdal in 
grass windows recently that can confirm/deny this issue?  This would 
isolate the problem to *me* rather than taking up everyone's valuable 
time thinking its a generic problem!

--j

Marco Pasetti wrote:
> Hi Jonathan,
> 
>> "run" button returned to black (usually a good back-up indication that 
>> a process is finished, if the progress bar isn't working).
> 
> yes, correct
> 
>> I think *grass* can deal with big files, but the GDAL compile it is 
>> relying on probably isn't configured correctly.
> 
> I really don't how could that be... the GDAL configure doesn't mention 
> about large file support at all!
> the only thing that I could figure out now is that the problem could 
> occur if GRASS is installed on a FAT32 partition...
> 
> could you please give me that file? I could do some tests and try to 
> track down the process, to check where and why it fails
> 
> Regards,
> 
> Marco
> 

-- 

Jonathan A. Greenberg, PhD
Postdoctoral Scholar
Center for Spatial Technologies and Remote Sensing (CSTARS)
University of California, Davis
One Shields Avenue
The Barn, Room 250N
Davis, CA 95616
Cell: 415-794-5043
AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307