Messages in this thread | | | Date | Sat, 13 Feb 1999 02:57:47 +0100 | From | Ralf Corsepius <> | Subject | Re: rmdir of one's pwd (was Re: rmdir of a busy directory) |
| |
Linus Torvalds wrote:
> Show me POSIX or other standards that say that you can't do it, and I > guess I have to work around a standards problem, but right now I say that > if programs ask for 'rmdir(".")', then they had better get it. I don't > think the OS should second-guess anybody.
I don't know about a formal standard, either.
Nevertheless, in my initial post, I wasn't talking about rmdir (2), I was talking about rmdir(1)'s behaviour on linux-2.[12].x breaking gcc/fixincludes for building cross-compilers.
The cause of this problem is the fragment from gcc/fixincludes below:
> echo 'Removing unneeded directories:' > cd $LIB > files=`find . -type d -print | sort -r` > for file in $files; do > rmdir $LIB/$file > /dev/null 2>&1 > done
This fragment relies on rmdir(1) failing when $file contains "."- So the actual problem is gcc/fixincludes requiring "rmdir $LIB/." to fail (Of cause this can easily be worked around by modifying fixincludes, but is a different topic).
AFAIS, this fragment is present in all gcc-releases I have handy right now: gcc-1.42 (Sep. 91), gcc-2.3.1 (Oct. 92), gcc-2.7.2.3, egcs-1.1b, egcs-1.1.1 and egcs updated from cvs a few hours ago.
IMO, this is indicates that this fragment must have worked on all (most?) hosts which have been supported by gcc (BTW, it did on linux-2.0.x) and which have been used as hosts for cross-compilation.
Given this assumption is true and considering that fixincludes doesn't work anymore for cross-compiling on linux-2.[12].x, because of rmdir(1)'s behavioural difference, this might also indicate that all (most?) platforms but linux-2.[12].X issue an error/warning on "rmdir ." (de-facto standard?).
Regards, Ralf
-- Ralf Corsepius Forschungsinstitut fuer Anwendungsorientierte Wissensverarbeitung (FAW) Helmholtzstr. 16, 89081 Ulm, Germany Tel: +49/731/501-8690 mailto:corsepiu@faw.uni-ulm.de FAX: +49/731/501-999 http://www.faw.uni-ulm.de
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |