Re: MSYS ln -s to directory

[Ralf Wildenhues]

Hi Stepan,

* Stepan Kasal wrote on Mon, Apr 10, 2006 at 11:55:41PM CEST:
> 
> Reading the patch, two questions came to my mind:
> 
> 1) It was said here that MSYS supports file hard links on NT filesystems.
> So it is possible that under some circumstances, LN=ln will be selected
> there.  Is this intentional?

Yes, I think this is intentional.

> 2) Are you sure that `ln -s foo dir' will succeed on DJGPP < 2.04?

The autoconf.texi text (the part that describes `ln' limitations, not
the one that describes AC_PROG_LN_S) suggests that it won't succeed.

> If not, the your patch introduced a regression for that platform.

Only if `ln a b' also seems to work but is in fact broken.
I'd guess that won't work there, though.

> If my concern about 2) is valid, the following patch should fix it.

If `ln -s file dir' succeeds on DJGPP < 2.04, your patch presents a
regression, as then it will wongly select `ln -s' there.

Cheers,
Ralf

> 2006-04-10  Stepan Kasal  <address@hidden>
> 
>       * lib/m4sugar/m4sh.m4 (_AS_LN_S_PREPARE): Move the check for
>       DJGPP < 2.04 before the check for MSYS.