Re: lseek error / LFS support with potato

["Eric G. Miller" <egm2@jps.net>]

On Mon, 19 Nov 2001 15:18:42 +0100
Emil Pedersen <emil.pedersen@its.uu.se> wrote:

> 
> Hello everyone.
> 
> A few days ago I "upgraded" (or tried to) a potato server installation
> to support files bigger than 2GB.
>   I got the impression that all that was needed was a 2.4.x kernel and
> the testing/unstable version of libc6/libc6-dev.  I did this, used 'dd'
> to create a 3.5GB large file from /dev/zero and everthing seemed to
> work.
> 
>   However, today it turns out that the database (Mimer-8.2.2) still does
> not work the way it's supposed to.  It seems like the program is having
> problem using 'lseek', probably becouse the argument and return-types
> (off_t) is just 4 bytes long.  Indeed when I check the size of 'off_t'
>  ( fprint("Sizeof: %d", sizeof(off_t)); ) it is 4 bytes.
> 
> The include files indicates that some "kernel/system/..." #define should
> be set to increase the size, but where do this come from or how is it
> defined?  How do I get the precompiled database to "load" the right
> (64bit) version of lseek, or in some other way get pass this
> limitaition.

I think the trick is defining _FILE_OFFSET_BITS = 64.

-- 
Eric G. Miller <egm2@jps.net>