Re: Bootstrap failure using 'make -j4' [Cygwin]

[Jan Djärv]

David Engster skrev 2010-05-22 15.06:
> Jan Djärv writes:
> > Eli Zaretskii skrev 2010-05-22 14.46:
> > > > Date: Sat, 22 May 2010 13:00:53 +0200
> > > > From: Jan Djärv<address@hidden>
> > > > CC: Angelo Graziosi<address@hidden>, address@hidden
> > > >
> > > > A better solution is probably to replace
> > > >
> > > >          test -d ${DEPDIR} || mkdir ${DEPDIR}
> > > >
> > > > with
> > > >
> > > >          mkdir -p ${DEPDIR}
> > >
> > > I think the -p switch to mkdir is not portable.
> >
> > I has been in The Single UNIX ® Specification since 1997 at least.  I
> > think it was in POSIX 2 as well (1990), but I lost it, so I can't
> > check.
>
> That may be, but 'mkdir -p' is not guaranteed to be thread-safe.

That has nothing to do with this situation.  The point of -p here is that 
mkdir shall not output an error if the directory exist.  When creating 
multiple directories, then -p is not thread safe (i.e. two mkdir:s may be 
creating directories in the tree), but this is not the case here.

        Jan D.