[Mesa-stable] [PATCH v2] configure.ac: ensure RM is set

[Jonathan Gray]

On Tue, Oct 13, 2015 at 11:25:08AM +0100, Emil Velikov wrote:
> On 10 October 2015 at 07:42, Jonathan Gray <jsg at jsg.id.au> wrote:
> > GNU make predefines RM to rm -f but this is not required by POSIX
> > so ensure that RM is set.  This fixes "make clean" on OpenBSD.
> >
> > v2: use AC_CHECK_PROG
> >
> I'm ambivalent if we go the AC_CHECK_PROG vs ?= route.
> 
> I'll let others pick their favourite, but both are
> Reviewed-by: Emil Velikov <emil.l.velikov at gmail.com>
> 
> -Emil

The ?= diff was a screwup as that syntax is valid in make but not shell.