Re: as_func_failure succeeds on FreeBSD 5.5 and 6.2

[Benoit SIGOURE]

On Aug 25, 2007, at 8:28 AM, Ralf Wildenhues wrote:

> Hello Benoit,
>
> * Benoit SIGOURE wrote on Fri, Aug 24, 2007 at 06:53:45PM CEST:
> > For the records, with a stock FreeBSD 5.5 and 6.2 (and thus, stock /
> > bin/sh) I get the following:
> >
> > as_func_failure succeeded.
> > as_func_failure succeeded.
>
> Which zsh version?  Could you add
>   set -x
>
> as second line of the configure script, run it, and post the complete
> output (packed with bzip2 or gzip), please?  Thanks.

Simple invocation of ./configure:
http://www.tsunanet.net/~tsuna/configure.log-zsh_4.2.6_i386-portbld- 
freebsd5.5
Invocation of CONFIG_SHELL=/bin/sh ./configure:
http://www.tsunanet.net/~tsuna/configure.log-bin_sh_freebsd5.5

> > I don't know how configure looks for a shell that supports functions
> > but I know that I have at least ZSH installed (/usr/local/bin/zsh)
> > and in my $PATH so it's weird that configure doesn't find (at least)
> > this shell.
>
> configure searches $PATH.  I think it's some zsh version that provokes
> the above warning, at least that's where I've seen it before.

You're right, it's ZSH 4.2.6 that is buggy on FreeBSD!  This must be  
a FreeBSD specific issue because I also use ZSH 4.2.6 on my Mac and  
never ran into this problem.

> AFAICS /bin/sh is rejected due to $LINENO.

No, it looks like configure picked up ZSH before trying to test /bin/ 
sh (which seems to be work fine:
+ as_lineno_1=429
+ as_lineno_2=430
+ test x429 != x430
+ expr 429 + 1
+ test x430 = x430
and doesn't have b0rken shell functions)

With zsh 4.2.6 (i386-portbld-freebsd5.5):
$ f() { (exit 1); echo $?; (exit 1); return $?; }; f; echo $?
0
0
$ f() { false; return $?; }; f; echo $?
1
$ (exit 1); echo $?;
1

So it looks like there's something b0rken with subshells in shell  
functions.

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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