From: Ciara Power <ciara.power@intel.com>
Date: Thu, 3 Sep 2020 15:26:41 +0000 (+0100)
Subject: examples: remove legacy sections of makefiles
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=fda34680eb9a;p=dpdk.git

examples: remove legacy sections of makefiles

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.power@intel.com>
Acked-by: Nicolas Chautru <nicolas.chautru@intel.com>
---

diff --git a/examples/bbdev_app/Makefile b/examples/bbdev_app/Makefile
index 3c8eb75a4e..2f156736d1 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..4e560f574c 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..d8f51fb39b 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..4116064581 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..05c6f865ad 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..7ba9bcfea6 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..4c215daf1b 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..0577e52985 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..2eef6e4527 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..9645c27d2f 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..f6baf635bb 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..d25e39a464 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..479b802907 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..5e6cb51eac 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..fb1ebdd433 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..fa9fa85319 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..c5f82fb548 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..4953ee2b95 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..109b7caa4e 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..d3ff2d3ee9 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..c327efab36 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..b180deb862 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..eeb6288dae 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..368ac21147 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..d69854c9f8 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..d87eafcd0c 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..b9b02124a4 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..4675570fd2 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..e8d6c57b72 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..86059d8b28 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..7a53818296 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..408074a9f5 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..bac3015d34 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..beb7ea0b82 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..ca52abba42 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..443bcb190e 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..0f6523afa6 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..c4b2184ead 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..cec59d0e0f 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..792591386e 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..27abd91998 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..de527281eb 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..9c9049d85e 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