Re: [gentoo-user] Per package /bin/sh selection

[Joerg Schilling]

Mike Gilbert <floppym@g.o> wrote:

> Wikipedia says that dash is a fork of NetBSD's ash, and I do see tests
> in their CVS repo. That might be worth looking into.
>
> http://cvsweb.netbsd.org/bsdweb.cgi/src/tests/bin/sh/

I see this is the variant from Rihard Elz, so it may make sense.
The original ash is too buggy as a reference.

> > When ever I change something in bosh, I run the unit tests to verify that I did
> > not introduce a bug. One of the unit tests is to run a configure and compare
> > the results with the results frm a reference shell.
> >
> > BTW: Did you ever think about replacing dash by bosh?
>
> We use bash as the default /bin/sh, but users are free to replace it
> with whatever shell they like, so long as it is reasonably
> POSIX-compliant. Other shells are obviously less tested in Gentoo.

Well, bosh has been tested to work as /bin/sh on Gentoo.
BTW: On Solaris, bosh is faster than dash (because Solaris has a fully working 
vfork()). On Linux bosh is "only" of the same speed as dash since vfork() on 
Linux does not borrow the parents address space description but copies it.

Jörg

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