There are cases where spdk.common.mk can get included
more than once in a Makefile. So avoid duplication
in SYS_LIBS by initializing it before appending text
to it.
The duplication was harmless but a bit annoying.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Idf081f973e15a9ab6ec9211b9a3cbf02c736c7a0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5676
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>