Adding 'realclean' target to /usr/src/Makefile

[Marcel Moolenaar]

On Sun, Feb 15, 2004 at 10:19:00AM -0700, M. Warner Losh wrote:
> In message: <p0602040fbc54cd0d3342@[128.113.24.47]>
>             Garance A Drosihn <drosih at rpi.edu> writes:
> : realclean :
> : 	rm -Rf ${.OBJDIR}/*
> 
> I'd make that be more like:
> 
> realclean :
> 	@chflags -R 0 ${.OBJDIR}/*
> 	@rm -Rf ${.OBJDIR}/*
> 
> since sometimes you wind up files that have flags set on them.

Sounds like a bug to me. Do you have examples?

> If you can tolerate errors in the output, the following is faster
> because the chflags has lots less work to do:
> 
> realclean :
> 	@rm -Rf ${.OBJDIR}/*
> 	@chflags -R 0 ${.OBJDIR}/*
> 	@rm -Rf ${.OBJDIR}/*

Since there should be no flags on files in the object directory in
principle, the errors are probably useful to track down where these
get set.

In any case: I think a realclean target based on a recursive rm is
generally useful. Adding a chflags in there makes it more foolproof
and thus ideal for UPDATING and other user oriented documentation.

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel at xcllnt.net