Re: [Qemu-devel] [PATCH for-2.10 0/1] Fix "make clean" for s390 target

[Cornelia Huck <cohuck@redhat.com>]

On Tue, 15 Aug 2017 07:02:10 +0200
Thomas Huth <thuth@redhat.com> wrote:

> On 14.08.2017 22:44, Eric Farman wrote:
> > How often does one really do a "make clean" ?  Rather infrequently,
> > as I only stumbled on this today.
> > 
> > Perhaps I have missed the RM variable somewhere, as I see similar syntax
> > in some of the tests/tcg/ Makefiles, but I don't see it being set here.
> > My configure statement isn't terribly interesting, just enabling debug
> > for an s390x target, and as such there's no RM variable in its output.
> > I'll trust that Thomas will chime in with where it should have been.
> > In the meantime, this does the trick for me.  
> 
> RM is one of the variables that should be pre-initialized by Make, and
> AFAIK should be used to increase portability (well, it's likely not
> important for QEMU since we require a posix-shell like built environment
> anyway).
> 
> According to the info page of Make, chapter "10.3 Variables Used by
> Implicit Rules":
> 
> `RM'
>      Command to remove a file; default `rm -f'.
> 
> I've also checked it again and "make clean" works fine here (using GNU
> Make 3.82). Which version of Make (and Linux distro) are you using?

Interesting. It fails for me with GNU Make 3.82 on my RHEL guest as
well.

> Anyway, maybe I also simply missed something, so I'm certainly also fine
> with the patch to revert it to "rm -f".

Given that other bios makefiles use rm -f as well, let's just change
back until we figure out what's wrong.