[OE-core] [PATCH v2] package.bbclass: Include dbgsrc for static libs

[Richard Purdie]

On Thu, 2018-04-19 at 13:17 +0200, Ola x Nilsson wrote:
> The debugsource must be added from the package providing the static
> lib, because any package using that lib does not have access to the
> source code.
> 
> Fixes [YOCTO #12558]
> 
> Signed-off-by: Ola x Nilsson <olani at axis.com>
> ---
>  meta/classes/package.bbclass | 44 ++++++++++++++++++++++++++++++++
> ------------
>  1 file changed, 32 insertions(+), 12 deletions(-)

I messed up and accidentally merged this onto OE-Core early and then we
had test failures on mingw. 

To resolve that I've added a tweak to disable this on mingw since it
doesn't work there.

Cheers,

Richard