re: Changing "make clean" and "make cleandir"

[matthew green <mrg%eterna.com.au@localhost>]

> On Wed, 07 Sep 2011, Matt Thomas wrote:
> >> I would like to make "make clean" and "make cleandir" delete 
> >> leftover files in the source directory as well as the obj 
> >> directory.  This should help with the case that the current 
> >> build uses .OBJDIR != .CURDIR, but an earlier build with 
> >> .OBJDIR = .CURDIR had left some output files in the source 
> >> directory.
> >
> >Have you tried it on a read-only source tree?
> >
> >Does it appropriately fail when it can't remove a file it should have?
> 
> The current draft just does "rm -f".  If the source tree is read-only
> but contains files that should be removed, it will silently fail to
> remove those files.
> 
> I can add code to test whether any files remain after the "rm -f",
> and to fail if so.  Checking for empty output from ls should do it.

did you check this?  my /usr/src is r/o:

phat-bass /usr/src> rm -f Makefile
rm: Makefile: Read-only file system
phat-bass /usr/src> echo $?
1


.mrg.