On Tue, Aug 19, 2008 at 09:51:47PM -0400, Mike Frysinger wrote:
> On Monday 21 July 2008, Robin Getz wrote:
> > On Wed 16 Jul 2008 04:54, Paul E. McKenney pondered:
> > > So everyone wants LTP to fail one Linux distros that happen to make
> > > /bin/sh be a real Bourne shell? Sounds like this kind of defeats the
> > > purpose of testing...
> >
> > LTP assumes a POSIX compliant shell - not bash.
> >
> > If there are things in the build system (and I know there are) that assume
> > bash, and fail on a different shell, I think the preferred patches are ones
> > that make the script require only POSIX compliance - not changing the
> > /bin/sh location.
> >
> > If your shell is not POSIX - then the feeling has been that that is your
> > issue, and not everyone else should suffer for it.
>
> except in this case it isnt a POSIX issue. the shell in use is broken.
You seem to be extremely confused.
If you say "/bin/sh", you are only guaranteed the base POSIX
functionality, which does not include "for ((i=0;i<$n;i++))" syntax.
At least it did not the last time I checked, which was 8AM Pacific time
on Wednesday August 20th, 2008. See:
http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
Search for "The for Loop". The only syntax specified is the old
"for i in list" form.
If you want the very nice (but non-standard) bash function, the script
needs to say "/bin/bash" rather than "/bin/sh". This was indeed what
my initial patch did, which was rejected. A later patch (which I acked)
modified the script to conform to the POSIX standard.
Now, it is true that many distros link /bin/sh to bash, which as far as
I know is perfectly legal. But distros that restrict /bin/sh to the
strict POSIX function are within their rights as well, not?
Thanx, Paul
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