This is just a copy of spdk.app.mk for now. But later
patches will modify spdk.app.mk in a "C-specific" way,
so add this cxx variant to use now in the C++ apps.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0d4d28c6119364d4c3cc7fa5274598b69f4ee6b1
Reviewed-on: https://review.gerrithub.io/434279
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
