Re: [PATCH] configure: unset harmful environment variables

[Juan Quintela]

Paolo Bonzini <pbonzini@redhat.com> wrote:
> Apart from CLICOLOR_FORCE and GREP_OPTIONS, there are other variables
> that are listed in the Autoconf manual.  While Autoconf neutralizes them
> very early, and assumes it does not (yet) run in a shell that has "unset",
> QEMU assumes that the user invoked configure under a POSIX shell, and
> therefore can simply use "unset" to clear them.
>
> CDPATH is particularly nasty because it messes up "cd ... && pwd".

It is weird that nobody noticed it.  I have been using that CDPATH since
last century.  Yeap, that makes me definitely old.

> Reported-by: Juan Quintela <quintela@redhat.com>
> Cc: qemu-stable@nongnu.org
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Juan Quintela <quintela@redhat.com>
Tested-by: Juan Quintela <quintela@redhat.com>

Thanks very much.