On Sun, 4 Feb 1996, Arthur Hoffmann wrote:

> Hi,
> I am trying very hard to get postgres to run on my Amiga 3000 running
...
> #define      _JBLEN  17              /* size, in longs, of a jmp_buf
> */
> 
> Well I wanted to know what the 17 was supposed to mean, but couldn't
> find any info on it. I then went and checked the include files of a
> SUN3 computer and there I found that _JBLEN is defined to be 58!
> What is the meaning of this?
Basicly this is space required for save registers/enviornment for
a context switch.  Different architectures with a different number
of registers will have a different size.
johnh...