[dpdk-dev] [PATCH v3 2/3] mk: allow use of environment var for template

[David Hunt <david.hunt@intel.com>]

Added new environment variable RTE_TEMPLATE which is an additional
variable that can be set in the users environment. This maps on to the
existing 'T' command line variable typically used when 'make config'
or 'make install' is invoked.

So, instead of typing 'make config T=x86_64-native-linuxapp-gcc', the user
can now do 'export RTE_TEMPLATE=x86_64-native-linuxapp-gcc' followed by
'make config'. If the user instead chooses to 'make install', this will
do the configure, build, and install in one step.

Signed-off-by: David Hunt <david.hunt@intel.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
---
 mk/rte.sdkinstall.mk | 4 ++++
 mk/rte.sdkroot.mk    | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/mk/rte.sdkinstall.mk b/mk/rte.sdkinstall.mk
index dbac2a2..a464b01 100644
--- a/mk/rte.sdkinstall.mk
+++ b/mk/rte.sdkinstall.mk
@@ -47,6 +47,10 @@ ifneq ($(MAKECMDGOALS),pre_install)
 include $(RTE_SDK)/mk/rte.vars.mk
 endif
 
+ifndef T
+T := $(RTE_TEMPLATE)
+endif
+
 ifdef T # defaults with T= will install an almost flat staging tree
 export prefix ?=
 kerneldir   ?= $(prefix)/kmod
diff --git a/mk/rte.sdkroot.mk b/mk/rte.sdkroot.mk
index 076a2d7..a560230 100644
--- a/mk/rte.sdkroot.mk
+++ b/mk/rte.sdkroot.mk
@@ -63,6 +63,10 @@ ifdef T
 ifeq ("$(origin T)", "command line")
 RTE_CONFIG_TEMPLATE := $(RTE_SRCDIR)/config/defconfig_$(T)
 endif
+else
+ifdef RTE_TEMPLATE
+RTE_CONFIG_TEMPLATE := $(RTE_SRCDIR)/config/defconfig_$(RTE_TEMPLATE)
+endif
 endif
 export RTE_CONFIG_TEMPLATE
 
-- 
2.7.4