The example app makefiles contained sections using the legacy method of
compiling with make. These are no longer needed, and are removed,
leaving only the section that uses pkg-config for the make build.

Signed-off-by: Ciara Power <ciara.po...@intel.com>
---
 examples/bbdev_app/Makefile             | 23 ++-------------
 examples/bond/Makefile                  | 34 ++--------------------
 examples/cmdline/Makefile               | 29 ++-----------------
 examples/distributor/Makefile           | 30 ++-----------------
 examples/eventdev_pipeline/Makefile     | 23 ++-------------
 examples/fips_validation/Makefile       | 34 ++--------------------
 examples/flow_classify/Makefile         | 29 ++-----------------
 examples/flow_filtering/Makefile        | 23 ++-------------
 examples/helloworld/Makefile            | 23 ++-------------
 examples/ioat/Makefile                  | 22 ++------------
 examples/ip_fragmentation/Makefile      | 29 ++-----------------
 examples/ip_pipeline/Makefile           | 36 ++---------------------
 examples/ip_reassembly/Makefile         | 29 ++-----------------
 examples/ipsec-secgw/Makefile           | 36 ++---------------------
 examples/ipv4_multicast/Makefile        | 29 ++-----------------
 examples/kni/Makefile                   | 27 ++----------------
 examples/l2fwd-cat/Makefile             | 38 ++-----------------------
 examples/l2fwd-crypto/Makefile          | 28 ++----------------
 examples/l2fwd-event/Makefile           | 22 ++------------
 examples/l2fwd-jobstats/Makefile        | 23 ++-------------
 examples/l2fwd-keepalive/Makefile       | 23 ++-------------
 examples/l2fwd/Makefile                 | 23 ++-------------
 examples/l3fwd-acl/Makefile             | 28 ++----------------
 examples/l3fwd-graph/Makefile           | 23 ++-------------
 examples/l3fwd-power/Makefile           | 36 ++---------------------
 examples/l3fwd/Makefile                 | 23 ++-------------
 examples/link_status_interrupt/Makefile | 22 ++------------
 examples/ntb/Makefile                   | 32 ++-------------------
 examples/packet_ordering/Makefile       | 22 ++------------
 examples/ptpclient/Makefile             | 28 ++----------------
 examples/qos_meter/Makefile             | 28 ++----------------
 examples/qos_sched/Makefile             | 31 ++------------------
 examples/rxtx_callbacks/Makefile        | 31 ++------------------
 examples/service_cores/Makefile         | 28 ++----------------
 examples/skeleton/Makefile              | 29 ++-----------------
 examples/tep_termination/Makefile       | 27 ++----------------
 examples/timer/Makefile                 | 28 ++----------------
 examples/vdpa/Makefile                  | 32 ++-------------------
 examples/vhost/Makefile                 | 30 ++-----------------
 examples/vhost_blk/Makefile             | 31 ++------------------
 examples/vhost_crypto/Makefile          | 31 ++------------------
 examples/vmdq/Makefile                  | 23 ++-------------
 examples/vmdq_dcb/Makefile              | 31 ++------------------
 43 files changed, 129 insertions(+), 1078 deletions(-)

diff --git a/examples/bbdev_app/Makefile b/examples/bbdev_app/Makefile
index 3c8eb75a4e..9675c6d096 100644
--- a/examples/bbdev_app/Makefile
+++ b/examples/bbdev_app/Makefile
@@ -8,7 +8,9 @@ APP = bbdev
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,22 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/bond/Makefile b/examples/bond/Makefile
index 4e4289e151..cec55dd879 100644
--- a/examples/bond/Makefile
+++ b/examples/bond/Makefile
@@ -8,7 +8,9 @@ APP = bond_app
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -41,33 +43,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-CFLAGS += -O3
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
-LDLIBS += -lrte_pmd_bond
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/cmdline/Makefile b/examples/cmdline/Makefile
index 7325097722..96dde832cf 100644
--- a/examples/cmdline/Makefile
+++ b/examples/cmdline/Makefile
@@ -8,7 +8,9 @@ APP = cmdline
 SRCS-y := main.c commands.c parse_obj_list.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,28 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-# binary name
-APP = cmdline
-
-# all source are stored in SRCS-y
-SRCS-y := main.c commands.c parse_obj_list.c
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/distributor/Makefile b/examples/distributor/Makefile
index 6e3fef9813..0dd23762e5 100644
--- a/examples/distributor/Makefile
+++ b/examples/distributor/Makefile
@@ -8,7 +8,9 @@ APP = distributor_app
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,29 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-EXTRA_CFLAGS += -O3 -Wfatal-errors
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/eventdev_pipeline/Makefile 
b/examples/eventdev_pipeline/Makefile
index 95a8d0884a..bbcf694fd0 100644
--- a/examples/eventdev_pipeline/Makefile
+++ b/examples/eventdev_pipeline/Makefile
@@ -10,7 +10,9 @@ SRCS-y += pipeline_worker_generic.c
 SRCS-y += pipeline_worker_tx.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,22 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/fips_validation/Makefile 
b/examples/fips_validation/Makefile
index b44ca2ee62..fddb56ca15 100644
--- a/examples/fips_validation/Makefile
+++ b/examples/fips_validation/Makefile
@@ -18,7 +18,9 @@ SRCS-y += fips_validation_xts.c
 SRCS-y += main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -47,33 +49,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-INC += $(sort $(wildcard *.h))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -I$(SRCDIR)
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/flow_classify/Makefile b/examples/flow_classify/Makefile
index 161d576b60..7402487dcf 100644
--- a/examples/flow_classify/Makefile
+++ b/examples/flow_classify/Makefile
@@ -8,7 +8,9 @@ APP = flow_classify
 SRCS-y := flow_classify.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,28 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/flow_filtering/Makefile b/examples/flow_filtering/Makefile
index 010a1383e2..3a3b243884 100644
--- a/examples/flow_filtering/Makefile
+++ b/examples/flow_filtering/Makefile
@@ -6,7 +6,9 @@ APP = flow
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -35,22 +37,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/helloworld/Makefile b/examples/helloworld/Makefile
index 94a1074cf6..d3784c11f3 100644
--- a/examples/helloworld/Makefile
+++ b/examples/helloworld/Makefile
@@ -8,7 +8,9 @@ APP = helloworld
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,22 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/ioat/Makefile b/examples/ioat/Makefile
index 86308854ea..ee03337ca4 100644
--- a/examples/ioat/Makefile
+++ b/examples/ioat/Makefile
@@ -8,7 +8,9 @@ APP = ioatfwd
 SRCS-y := ioatfwd.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,21 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/ip_fragmentation/Makefile 
b/examples/ip_fragmentation/Makefile
index 3f4db3f59d..e3baedc18e 100644
--- a/examples/ip_fragmentation/Makefile
+++ b/examples/ip_fragmentation/Makefile
@@ -9,7 +9,9 @@ APP = ip_fragmentation
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,28 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/ip_pipeline/Makefile b/examples/ip_pipeline/Makefile
index 1116bb6c18..e4e86830a6 100644
--- a/examples/ip_pipeline/Makefile
+++ b/examples/ip_pipeline/Makefile
@@ -21,7 +21,9 @@ SRCS-y += tmgr.c
 SRCS-y += cryptodev.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -57,35 +59,3 @@ build:
 clean:
        rm -f build/$(APP)* build/*.o
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-clean:
-else
-
-INC += $(sort $(wildcard *.h))
-
-SRCS-$(CONFIG_RTE_LIBRTE_PIPELINE) := $(SRCS-y)
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -I$(SRCDIR)
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
-endif
diff --git a/examples/ip_reassembly/Makefile b/examples/ip_reassembly/Makefile
index be9e541bd6..1350de9ebe 100644
--- a/examples/ip_reassembly/Makefile
+++ b/examples/ip_reassembly/Makefile
@@ -9,7 +9,9 @@ APP = ip_reassembly
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,28 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/ipsec-secgw/Makefile b/examples/ipsec-secgw/Makefile
index b5ccbca858..5f85dbbc02 100644
--- a/examples/ipsec-secgw/Makefile
+++ b/examples/ipsec-secgw/Makefile
@@ -23,7 +23,9 @@ SRCS-y += flow.c
 CFLAGS += -gdwarf-2
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -54,35 +56,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(MAKECMDGOALS),clean)
-ifneq ($(CONFIG_RTE_LIBRTE_IPSEC),y)
-$(error "RTE_LIBRTE_IPSEC is required to build ipsec-secgw")
-endif
-endif
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3 -gdwarf-2
-CFLAGS += $(WERROR_FLAGS)
-ifeq ($(CONFIG_RTE_TOOLCHAIN_ICC),y)
-CFLAGS_sa.o += -diag-disable=vec
-endif
-
-ifeq ($(DEBUG),1)
-CFLAGS += -DIPSEC_DEBUG -fstack-protector-all -O0
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/ipv4_multicast/Makefile b/examples/ipv4_multicast/Makefile
index 0ed78c1cc2..aa2fda5e8a 100644
--- a/examples/ipv4_multicast/Makefile
+++ b/examples/ipv4_multicast/Makefile
@@ -9,7 +9,9 @@ APP = ipv4_multicast
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,28 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/kni/Makefile b/examples/kni/Makefile
index 8fcb67c619..71402fa744 100644
--- a/examples/kni/Makefile
+++ b/examples/kni/Makefile
@@ -8,7 +8,9 @@ APP = kni
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,26 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(error This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-endif
-
-CFLAGS += -O3
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd-cat/Makefile b/examples/l2fwd-cat/Makefile
index d767a10d7d..4dce18226c 100644
--- a/examples/l2fwd-cat/Makefile
+++ b/examples/l2fwd-cat/Makefile
@@ -8,7 +8,9 @@ APP = l2fwd-cat
 SRCS-y := l2fwd-cat.c cat.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,37 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-ifeq ($(PQOS_INSTALL_PATH),)
-$(error "Please define PQOS_INSTALL_PATH environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-EXTRA_CFLAGS += -O3 -g -Wfatal-errors
-
-CFLAGS += -I$(PQOS_INSTALL_PATH)/../include
-
-LDLIBS += -L$(PQOS_INSTALL_PATH)
-LDLIBS += -lpqos
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd-crypto/Makefile b/examples/l2fwd-crypto/Makefile
index cdbb91a1e6..b008f887cb 100644
--- a/examples/l2fwd-crypto/Makefile
+++ b/examples/l2fwd-crypto/Makefile
@@ -8,7 +8,9 @@ APP = l2fwd-crypto
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,27 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
-ifeq ($(CONFIG_RTE_LIBRTE_PMD_CRYPTO_SCHEDULER),y)
-LDLIBS += -lrte_pmd_crypto_scheduler
-endif
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd-event/Makefile b/examples/l2fwd-event/Makefile
index ddee388ae6..a7249995c7 100644
--- a/examples/l2fwd-event/Makefile
+++ b/examples/l2fwd-event/Makefile
@@ -14,7 +14,9 @@ SRCS-y += l2fwd_event_generic.c
 SRCS-y += l2fwd_event_internal_port.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -43,21 +45,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd-jobstats/Makefile b/examples/l2fwd-jobstats/Makefile
index bdb83c3e1c..292f35bee7 100644
--- a/examples/l2fwd-jobstats/Makefile
+++ b/examples/l2fwd-jobstats/Makefile
@@ -8,7 +8,9 @@ APP = l2fwd-jobstats
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,22 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd-keepalive/Makefile 
b/examples/l2fwd-keepalive/Makefile
index 9fd9db4974..26b50263aa 100644
--- a/examples/l2fwd-keepalive/Makefile
+++ b/examples/l2fwd-keepalive/Makefile
@@ -8,7 +8,9 @@ APP = l2fwd-keepalive
 SRCS-y := main.c shm.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,22 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-LDFLAGS += -lrt
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l2fwd/Makefile b/examples/l2fwd/Makefile
index 15105ac57e..6a74c7464a 100644
--- a/examples/l2fwd/Makefile
+++ b/examples/l2fwd/Makefile
@@ -8,7 +8,9 @@ APP = l2fwd
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,22 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-# Add flag to allow experimental API as l2fwd uses rte_ethdev_set_ptype API
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l3fwd-acl/Makefile b/examples/l3fwd-acl/Makefile
index 6644a2cf1e..a095408f51 100644
--- a/examples/l3fwd-acl/Makefile
+++ b/examples/l3fwd-acl/Makefile
@@ -8,7 +8,9 @@ APP = l3fwd-acl
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,27 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l3fwd-graph/Makefile b/examples/l3fwd-graph/Makefile
index f3cf275ece..782a261d6b 100644
--- a/examples/l3fwd-graph/Makefile
+++ b/examples/l3fwd-graph/Makefile
@@ -8,7 +8,9 @@ APP = l3fwd-graph
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,22 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -I$(SRCDIR)
-CFLAGS += -O3 $(USER_FLAGS)
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/l3fwd-power/Makefile b/examples/l3fwd-power/Makefile
index ac1ccdcf61..29635b325a 100644
--- a/examples/l3fwd-power/Makefile
+++ b/examples/l3fwd-power/Makefile
@@ -8,7 +8,9 @@ APP = l3fwd-power
 SRCS-y := main.c perf_core.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,35 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-LDLIBS += -lm -lrte_telemetry
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
-endif
diff --git a/examples/l3fwd/Makefile b/examples/l3fwd/Makefile
index b25a515813..52403b2bb4 100644
--- a/examples/l3fwd/Makefile
+++ b/examples/l3fwd/Makefile
@@ -9,7 +9,9 @@ SRCS-y := main.c l3fwd_lpm.c l3fwd_em.c l3fwd_event.c
 SRCS-y += l3fwd_event_generic.c l3fwd_event_internal_port.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,22 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -I$(SRCDIR)
-CFLAGS += -O3 $(USER_FLAGS)
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/link_status_interrupt/Makefile 
b/examples/link_status_interrupt/Makefile
index f16916faa9..da2e328d68 100644
--- a/examples/link_status_interrupt/Makefile
+++ b/examples/link_status_interrupt/Makefile
@@ -8,7 +8,9 @@ APP = link_status_interrupt
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,21 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/ntb/Makefile b/examples/ntb/Makefile
index 81ec6017f5..ccec63c125 100644
--- a/examples/ntb/Makefile
+++ b/examples/ntb/Makefile
@@ -8,8 +8,9 @@ APP = ntb_fwd
 SRCS-y := ntb_fwd.c
 
 # Build using pkg-config variables if possible
-$(shell pkg-config --exists libdpdk)
-ifeq ($(.SHELLSTATUS),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -42,30 +43,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        rmdir --ignore-fail-on-non-empty build
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, can be overridden by command line or environment
-RTE_TARGET ?= x86_64-native-linuxapp-gcc
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y)
-$(info This application can only operate in a linuxapp environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -D_FILE_OFFSET_BITS=64
-CFLAGS += -O2
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
-endif
diff --git a/examples/packet_ordering/Makefile 
b/examples/packet_ordering/Makefile
index f99b69dc25..480495eeba 100644
--- a/examples/packet_ordering/Makefile
+++ b/examples/packet_ordering/Makefile
@@ -8,7 +8,9 @@ APP = packet_ordering
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,21 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/ptpclient/Makefile b/examples/ptpclient/Makefile
index a9555fc66a..501bc67173 100644
--- a/examples/ptpclient/Makefile
+++ b/examples/ptpclient/Makefile
@@ -8,7 +8,9 @@ APP = ptpclient
 SRCS-y := ptpclient.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,27 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/qos_meter/Makefile b/examples/qos_meter/Makefile
index 165e07ee25..8eabb8f8c9 100644
--- a/examples/qos_meter/Makefile
+++ b/examples/qos_meter/Makefile
@@ -8,7 +8,9 @@ APP = qos_meter
 SRCS-y := main.c rte_policer.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -39,27 +41,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/qos_sched/Makefile b/examples/qos_sched/Makefile
index 0dd7d91055..7961c60120 100644
--- a/examples/qos_sched/Makefile
+++ b/examples/qos_sched/Makefile
@@ -8,7 +8,9 @@ APP = qos_sched
 SRCS-y := main.c args.c init.c app_thread.c cfg_file.c cmdline.c stats.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,30 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-clean:
-else
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
-endif
diff --git a/examples/rxtx_callbacks/Makefile b/examples/rxtx_callbacks/Makefile
index 10e5f14d5c..3e982665c8 100644
--- a/examples/rxtx_callbacks/Makefile
+++ b/examples/rxtx_callbacks/Makefile
@@ -8,7 +8,9 @@ APP = rxtx_callbacks
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,30 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-
-# rte_eth_read_clock is experimental
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-EXTRA_CFLAGS += -O3 -g -Wfatal-errors
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/service_cores/Makefile b/examples/service_cores/Makefile
index e742d88f61..456981afa5 100644
--- a/examples/service_cores/Makefile
+++ b/examples/service_cores/Makefile
@@ -8,7 +8,9 @@ APP = service_cores
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,27 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
diff --git a/examples/skeleton/Makefile b/examples/skeleton/Makefile
index 5f5acf7159..059dc2112b 100644
--- a/examples/skeleton/Makefile
+++ b/examples/skeleton/Makefile
@@ -8,7 +8,9 @@ APP = basicfwd
 SRCS-y := basicfwd.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,28 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-EXTRA_CFLAGS += -O3 -g -Wfatal-errors
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/tep_termination/Makefile 
b/examples/tep_termination/Makefile
index 548ca3cee3..65218c504a 100644
--- a/examples/tep_termination/Makefile
+++ b/examples/tep_termination/Makefile
@@ -8,7 +8,9 @@ APP = tep_termination
 SRCS-y := main.c vxlan_setup.c vxlan.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -41,26 +43,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(error This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-endif
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -Wno-deprecated-declarations
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/timer/Makefile b/examples/timer/Makefile
index b40b65995e..64c4016aa6 100644
--- a/examples/timer/Makefile
+++ b/examples/timer/Makefile
@@ -8,7 +8,9 @@ APP = timer
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,27 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/vdpa/Makefile b/examples/vdpa/Makefile
index bc0b6793e6..8dfa0ceff2 100644
--- a/examples/vdpa/Makefile
+++ b/examples/vdpa/Makefile
@@ -9,7 +9,9 @@ SRCS-y := main.c
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,31 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -O2 -D_FILE_OFFSET_BITS=64
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -D_GNU_SOURCE
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif # linuxapp
-
-endif # pkg-config
diff --git a/examples/vhost/Makefile b/examples/vhost/Makefile
index ef6f3550f3..98f13176dd 100644
--- a/examples/vhost/Makefile
+++ b/examples/vhost/Makefile
@@ -8,7 +8,9 @@ APP = vhost-switch
 SRCS-y := main.c virtio_net.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -41,29 +43,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O2 -D_FILE_OFFSET_BITS=64
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
-endif
diff --git a/examples/vhost_blk/Makefile b/examples/vhost_blk/Makefile
index 3952791784..6caa40c674 100644
--- a/examples/vhost_blk/Makefile
+++ b/examples/vhost_blk/Makefile
@@ -8,8 +8,9 @@ APP = vhost-blk
 SRCS-y := blk.c vhost_blk.c vhost_blk_compat.c
 
 # Build using pkg-config variables if possible
-$(shell pkg-config --exists libdpdk)
-ifeq ($(.SHELLSTATUS),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -42,29 +43,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O2 -D_FILE_OFFSET_BITS=64
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif
-endif
diff --git a/examples/vhost_crypto/Makefile b/examples/vhost_crypto/Makefile
index 28e3e4de74..d93c1dd424 100644
--- a/examples/vhost_crypto/Makefile
+++ b/examples/vhost_crypto/Makefile
@@ -9,7 +9,9 @@ SRCS-y := main.c
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -38,30 +40,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
-$(info This application can only operate in a linux environment, \
-please change the definition of the RTE_TARGET environment variable)
-all:
-else
-
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-CFLAGS += -O2 -D_FILE_OFFSET_BITS=64
-CFLAGS += $(WERROR_FLAGS)
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-
-endif # Linux
-
-endif # pkg-config
diff --git a/examples/vmdq/Makefile b/examples/vmdq/Makefile
index b73373d3f5..c162e7c4e1 100644
--- a/examples/vmdq/Makefile
+++ b/examples/vmdq/Makefile
@@ -8,7 +8,9 @@ APP = vmdq_app
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,22 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-EXTRA_CFLAGS += -O3
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
diff --git a/examples/vmdq_dcb/Makefile b/examples/vmdq_dcb/Makefile
index 8d8baf729b..e9b29e2abd 100644
--- a/examples/vmdq_dcb/Makefile
+++ b/examples/vmdq_dcb/Makefile
@@ -8,7 +8,9 @@ APP = vmdq_dcb_app
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
+ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
+       $(error "no installation of DPDK found")
+endif
 
 all: shared
 .PHONY: shared static
@@ -37,30 +39,3 @@ build:
 clean:
        rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
        test -d build && rmdir -p build || true
-
-else # Build using legacy build system
-
-ifeq ($(RTE_SDK),)
-$(error "Please define RTE_SDK environment variable")
-endif
-
-# Default target, detect a build directory, by looking for a path with a 
.config
-RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard 
$(RTE_SDK)/*/.config)))))
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-CFLAGS += $(WERROR_FLAGS)
-CFLAGS += -DALLOW_EXPERIMENTAL_API
-
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-ifeq ($(CONFIG_RTE_TOOLCHAIN_ICC),y)
-CFLAGS_main.o += -diag-disable=vec
-endif
-EXTRA_CFLAGS += -O3 -g
-
-include $(RTE_SDK)/mk/rte.extapp.mk
-endif
-- 
2.17.1

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