On Sun, Mar 18, 2012 at 06:55:10PM -0700, Eliot Miranda wrote:
> Hi David,
> 
> On Sun, Mar 18, 2012 at 6:30 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> 
> > On a Linux system, the data types that represent file positions are 32 bits
> > in size when the program is compiled in 32-bit mode (using the -m32
> > compiler
> > option), and they are 64 bits in size when the program is compiled in
> > 64-bit
> > mode. The relevant data types are off_t and size_t, and if you compile the
> > following in 32-bit mode (-m32) and compare the same program compiled in
> > 64-bit mode, you can see the difference:
> >
> >  #include <stdio.h>
> >  #include <sys/types.h>
> >  main() {
> >    printf("off_t is %d\n", sizeof(off_t));
> >    printf("size_t is %d\n", sizeof(size_t));
> >  }
> >
> 
> Not quite.  One can modify this by defining something like
> _LARGEFILE64_SOURCE at compile time.  e.g.
> see _LARGEFILE_SOURCE _LARGEFILE64_SOURCE & _FILE_OFFSET_BITS in
> http://www.delorie.com/gnu/docs/glibc/libc_13.html.  I'll check that the
> appropriate one is defined when building Cog asap.

Excellent, thank you!

Dave