[dpdk-stable] [PATCH v2] mk: support renamed Makefile in external project

[Marko Kovacevic <marko.kovacevic@intel.com>]

The build system made a recursive call to "make" after
creating the build directory. This recursive call used
the hard-coded filename "Makefile", which prevented
builds from working if the file was renamed and make
called using "make -f". Taking the filename from
MAKEFILES_LIST make variable fixes this.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: Vipin Varghese <vipin.varghese@intel.com>

---
V2
 - Changed the call of the make file a litte
   due to an issue reported by Olivier.
---
 mk/internal/rte.extvars.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mk/internal/rte.extvars.mk b/mk/internal/rte.extvars.mk
index 94f27e9..98c8606 100644
--- a/mk/internal/rte.extvars.mk
+++ b/mk/internal/rte.extvars.mk
@@ -20,7 +20,7 @@ ifeq ("$(origin M)", "command line")
 RTE_EXTMK := $(abspath $(M))
 endif
 endif
-RTE_EXTMK ?= $(RTE_SRCDIR)/Makefile
+RTE_EXTMK ?= $(RTE_SRCDIR)/$(notdir $(firstword $(MAKEFILE_LIST)))
 export RTE_EXTMK
 
 # RTE_SDK_BIN must point to .config, include/ and lib/.
-- 
2.9.5