[GRASS-dev] [GRASS GIS] #1971: 64bit LFS support for G_ftell() and PRI_OFF_T gis.h

GRASS GIS trac at osgeo.org
Sun May 12 02:30:49 PDT 2013

#1971: 64bit LFS support for G_ftell() and PRI_OFF_T gis.h
 Reporter:  hamish                               |       Owner:  grass-dev@…              
     Type:  defect                               |      Status:  new                      
 Priority:  critical                             |   Milestone:  6.4.3                    
Component:  LibGIS                               |     Version:  svn-develbranch6         
 Keywords:  r.in.bin, LFS, G_ftell(), PRI_OFF_T  |    Platform:  Linux                    
      Cpu:  x86-64                               |  

Comment(by hamish):

 Glynn wrote:
 > That's trunk.

 ah, the history was imported as the file was recently copied from trunk.
 ok, so 6.x is still LFS-on-demand. Added to devbr6 r.in.bin Makefile in
 r56207. formal audit of all modules which might need it can come later.

 Replying to [comment:6 glynn]:
 > The G_* versions should use at least a long for offsets.

 if I undo r45468 and add
    #include <sys/types.h>       /* for off_t */
 to include/gisdefs.h, then devbr6 builds ok and r.in.bin + the >2GB file
 imports ok for me on 64bit linux.

 > The truncation to int was done in r45468, but I don't know why. Possibly
 > avoid issues with off_t having different sizes in different files
 (didn't LFS
 > have to be enabled on a module-by-module basis in 6.x?).

 Martin, do you remember why the change to int was needed? I can't find
 anything in the archives about it.


Ticket URL: <https://trac.osgeo.org/grass/ticket/1971#comment:7>
GRASS GIS <http://grass.osgeo.org>

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