Re: [patch] Compile fix for 64-bit HPUX

[Daniel Jacobowitz <drow at false dot org>]

On Wed, Mar 29, 2006 at 01:13:15AM +0200, Andreas Schwab wrote:
> Daniel Jacobowitz <drow@false.org> writes:
> 
> >> +    oldcflags="${CFLAGS-}"
> >
> > What's ${foo-}?  I don't see it in my bash or dash docs.
> 
> In (bash)Shell Parameter Expansion, the paragraph before the table:
> 
>        When not performing substring expansion, Bash tests for a parameter
>     that is unset or null; omitting the colon results in a test only for a
>                            ^^^^^^^^^^^^^^^^^^
>     parameter that is unset.

Thanks.  I see this in the dash documentation too, and pdksh, so it is
presumably portable.

-- 
Daniel Jacobowitz
CodeSourcery