Why doesn't autoconf like our /bin/sh?

[Stefan Farfeleder]

On Sun, May 25, 2008 at 09:06:47AM -0600, John E Hein wrote:
> FWIW, it seems bash and sh report line number differently.
> 
> # grep -n ^ ~/tmp/ln
> 1:#!/bin/sh
> 2:echo f line: $LINENO
> 3:f()
> 4:{
> 5:echo f line: $LINENO
> 6:}
> 7:
> 8:f
> 9:echo main line: $LINENO
> 10:f
> 
> 
> # /bin/sh ~/tmp/ln
> f line: 2
> f line: 3
> main line: 9
> f line: 3
> 
> 
> # bash ~/tmp/ln
> f line: 2
> f line: 5
> main line: 9
> f line: 5

Yes, I know.  I think it is a bug in bash as SUSv3 states:

"Set by the shell to a decimal number representing the current
sequential line number (numbered starting with 1) within a script or
function before it executes each command."

Stefan