[dpdk-dev] [PATCH 03/11] mk: fix build dependency of drivers on pmdinfogen

[Thomas Monjalon <thomas.monjalon@6wind.com>]

When compiling the drivers, some code is generated with pmdinfogen.
A fresh parallel build can fail if a driver is compiled before pmdinfogen:
	build/buildtools/dpdk-pmdinfogen: Permission denied

There was a dependency declared in drivers/Makefile but it cannot work
because this file is based on mk/rte.subdir.mk which do not handle
dependencies.

It is fixed by declaring the whole buildtools as (order only) prerequisite
of drivers.

Fixes: cb6696d22023 ("drivers: update registration macro usage")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
---
 drivers/Makefile   | 2 --
 mk/rte.sdkbuild.mk | 1 +
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/Makefile b/drivers/Makefile
index 75a3168..81c03a8 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -34,6 +34,4 @@ include $(RTE_SDK)/mk/rte.vars.mk
 DIRS-y += net
 DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += crypto
 
-DEPDIRS-y += buildtools/pmdinfo
-
 include $(RTE_SDK)/mk/rte.subdir.mk
diff --git a/mk/rte.sdkbuild.mk b/mk/rte.sdkbuild.mk
index fb68af2..354f006 100644
--- a/mk/rte.sdkbuild.mk
+++ b/mk/rte.sdkbuild.mk
@@ -49,6 +49,7 @@ $(1): $(sort $(LOCAL_DEPDIRS-$(1)))
 endef
 
 $(foreach d,$(ROOTDIRS-y),$(eval $(call depdirs_rule,$(d))))
+drivers: | buildtools
 
 #
 # build and clean targets
-- 
2.7.0