677aa5129b
RTE_DEVEL_BUILD is set to := y in mk/rte.vars.mk, which makes it impossible to override via an environment variable, and forces users to pass it inline in the make call. Use ?= instead to have it pick up the environment variable as well. Signed-off-by: Luca Boccassi <lboccass@brocade.com> Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>