[OE-core] libcap: make -e causing trouble

[Mike Crowe]

On Thursday 30 April 2015 at 07:39:25 -0700, Christopher Larson wrote:
> On Thu, Apr 30, 2015 at 7:28 AM, Mike Crowe <mac at mcrowe.com> wrote:
> > Unfortunately passing "-e" subtly changes the behaviour of libcap's
> > Make.Rules under recursive make when prefix="" (which it is for us since
> > we're using meta-micro.)

[snip]

> Given our use of make -e (with MAKEFLAGS= to try to prevent it from flowing
> into submakes) was always a hack to try to let things "just work", I think
> wherever possible we should stop relying on it, and explicitly pass
> everything the way that particular make-based buildsystem expects,
> personally. Better to be explicit than to rely on implicit "magic".
> Further, that behavior encourages recipe maintainers to not even read the
> buildsystem of the project they're creating a recipe for, which often leads
> to problems down the road..

I completely agree, but what is the best way to avoid "-e". Is there ever
likely to be anything else in EXTRA_OEMAKE that would need to be preserved?

I notice that autotools.bbclass just sets EXTRA_OEMAKE = "" so perhaps it's
relatively safe to just assign it directly.

Thanks.

Mike.