[dpdk-dev] [PATCH 19.08 2/6] examples: add support for relocated DPDK install

Bruce Richardson bruce.richardson at intel.com
Fri May 3 15:35:33 CEST 2019
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For testing of DPDK, we want to override the prefix given by the
pkg-config file, so that we can get correct paths for DPDK installed
in an unusual location.

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 examples/bbdev_app/Makefile             | 13 +++++++++----
 examples/bond/Makefile                  | 13 +++++++++----
 examples/cmdline/Makefile               | 13 +++++++++----
 examples/distributor/Makefile           | 13 +++++++++----
 examples/eventdev_pipeline/Makefile     | 13 +++++++++----
 examples/exception_path/Makefile        | 13 +++++++++----
 examples/fips_validation/Makefile       | 13 +++++++++----
 examples/flow_classify/Makefile         | 13 +++++++++----
 examples/flow_filtering/Makefile        | 13 +++++++++----
 examples/helloworld/Makefile            | 13 +++++++++----
 examples/ip_fragmentation/Makefile      | 13 +++++++++----
 examples/ip_pipeline/Makefile           | 13 +++++++++----
 examples/ip_reassembly/Makefile         | 13 +++++++++----
 examples/ipsec-secgw/Makefile           | 13 +++++++++----
 examples/ipv4_multicast/Makefile        | 13 +++++++++----
 examples/kni/Makefile                   | 13 +++++++++----
 examples/l2fwd-cat/Makefile             | 13 +++++++++----
 examples/l2fwd-crypto/Makefile          | 13 +++++++++----
 examples/l2fwd-jobstats/Makefile        | 13 +++++++++----
 examples/l2fwd-keepalive/Makefile       | 13 +++++++++----
 examples/l2fwd/Makefile                 | 13 +++++++++----
 examples/l3fwd-acl/Makefile             | 13 +++++++++----
 examples/l3fwd-power/Makefile           | 13 +++++++++----
 examples/l3fwd-vf/Makefile              | 13 +++++++++----
 examples/l3fwd/Makefile                 | 13 +++++++++----
 examples/link_status_interrupt/Makefile | 13 +++++++++----
 examples/load_balancer/Makefile         | 13 +++++++++----
 examples/packet_ordering/Makefile       | 13 +++++++++----
 examples/ptpclient/Makefile             | 13 +++++++++----
 examples/qos_meter/Makefile             | 13 +++++++++----
 examples/qos_sched/Makefile             | 13 +++++++++----
 examples/rxtx_callbacks/Makefile        | 13 +++++++++----
 examples/service_cores/Makefile         | 13 +++++++++----
 examples/skeleton/Makefile              | 13 +++++++++----
 examples/tep_termination/Makefile       | 13 +++++++++----
 examples/timer/Makefile                 | 13 +++++++++----
 examples/vhost/Makefile                 | 13 +++++++++----
 examples/vhost_scsi/Makefile            | 13 +++++++++----
 examples/vmdq/Makefile                  | 13 +++++++++----
 examples/vmdq_dcb/Makefile              | 13 +++++++++----
 40 files changed, 360 insertions(+), 160 deletions(-)

diff --git a/examples/bbdev_app/Makefile b/examples/bbdev_app/Makefile
index e8115b46a..603932ace 100644
--- a/examples/bbdev_app/Makefile
+++ b/examples/bbdev_app/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/bond/Makefile b/examples/bond/Makefile
index 488eeac70..95b913dab 100644
--- a/examples/bond/Makefile
+++ b/examples/bond/Makefile
@@ -20,10 +20,15 @@ static: build/$(APP)-static
 
 LDFLAGS += -lrte_pmd_bond
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/cmdline/Makefile b/examples/cmdline/Makefile
index a03dfa8ee..6bc6aa167 100644
--- a/examples/cmdline/Makefile
+++ b/examples/cmdline/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/distributor/Makefile b/examples/distributor/Makefile
index 52076214b..e9c5c5d3c 100644
--- a/examples/distributor/Makefile
+++ b/examples/distributor/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/eventdev_pipeline/Makefile b/examples/eventdev_pipeline/Makefile
index 0b0d1ade9..fd96080f3 100644
--- a/examples/eventdev_pipeline/Makefile
+++ b/examples/eventdev_pipeline/Makefile
@@ -20,10 +20,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/exception_path/Makefile b/examples/exception_path/Makefile
index 18db85ddb..d633be4f8 100644
--- a/examples/exception_path/Makefile
+++ b/examples/exception_path/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/fips_validation/Makefile b/examples/fips_validation/Makefile
index e74252e27..95b6533b9 100644
--- a/examples/fips_validation/Makefile
+++ b/examples/fips_validation/Makefile
@@ -27,10 +27,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/flow_classify/Makefile b/examples/flow_classify/Makefile
index dfce1a4bd..3078c5ec7 100644
--- a/examples/flow_classify/Makefile
+++ b/examples/flow_classify/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/flow_filtering/Makefile b/examples/flow_filtering/Makefile
index f657c0336..ee2eb8754 100644
--- a/examples/flow_filtering/Makefile
+++ b/examples/flow_filtering/Makefile
@@ -16,10 +16,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/helloworld/Makefile b/examples/helloworld/Makefile
index 97d82f68a..eaf028d02 100644
--- a/examples/helloworld/Makefile
+++ b/examples/helloworld/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/ip_fragmentation/Makefile b/examples/ip_fragmentation/Makefile
index 6d1a1fbba..979333af2 100644
--- a/examples/ip_fragmentation/Makefile
+++ b/examples/ip_fragmentation/Makefile
@@ -19,10 +19,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/ip_pipeline/Makefile b/examples/ip_pipeline/Makefile
index 409966afd..a224080af 100644
--- a/examples/ip_pipeline/Makefile
+++ b/examples/ip_pipeline/Makefile
@@ -31,10 +31,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -I.
 
diff --git a/examples/ip_reassembly/Makefile b/examples/ip_reassembly/Makefile
index 7bbc241c7..00b652e85 100644
--- a/examples/ip_reassembly/Makefile
+++ b/examples/ip_reassembly/Makefile
@@ -19,10 +19,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/ipsec-secgw/Makefile b/examples/ipsec-secgw/Makefile
index ac042e4ce..64379383b 100644
--- a/examples/ipsec-secgw/Makefile
+++ b/examples/ipsec-secgw/Makefile
@@ -29,10 +29,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/ipv4_multicast/Makefile b/examples/ipv4_multicast/Makefile
index 5a1e368fa..2758e1442 100644
--- a/examples/ipv4_multicast/Makefile
+++ b/examples/ipv4_multicast/Makefile
@@ -19,10 +19,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/kni/Makefile b/examples/kni/Makefile
index 634334f86..afc8ddcbf 100644
--- a/examples/kni/Makefile
+++ b/examples/kni/Makefile
@@ -18,11 +18,16 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
 CFLAGS += -DALLOW_EXPERIMENTAL_API
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l2fwd-cat/Makefile b/examples/l2fwd-cat/Makefile
index fb3c4bc00..73db78ab2 100644
--- a/examples/l2fwd-cat/Makefile
+++ b/examples/l2fwd-cat/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 LDFLAGS += -lpqos
 
diff --git a/examples/l2fwd-crypto/Makefile b/examples/l2fwd-crypto/Makefile
index ed5e2c73f..88ff086e7 100644
--- a/examples/l2fwd-crypto/Makefile
+++ b/examples/l2fwd-crypto/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l2fwd-jobstats/Makefile b/examples/l2fwd-jobstats/Makefile
index e14c3a2b2..064799609 100644
--- a/examples/l2fwd-jobstats/Makefile
+++ b/examples/l2fwd-jobstats/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l2fwd-keepalive/Makefile b/examples/l2fwd-keepalive/Makefile
index bc851b732..1fc3337ea 100644
--- a/examples/l2fwd-keepalive/Makefile
+++ b/examples/l2fwd-keepalive/Makefile
@@ -20,10 +20,15 @@ static: build/$(APP)-static
 
 LDFLAGS += -pthread -lrt
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l2fwd/Makefile b/examples/l2fwd/Makefile
index 94d70a43e..b4cc1ae01 100644
--- a/examples/l2fwd/Makefile
+++ b/examples/l2fwd/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l3fwd-acl/Makefile b/examples/l3fwd-acl/Makefile
index fc236f129..4918a63eb 100644
--- a/examples/l3fwd-acl/Makefile
+++ b/examples/l3fwd-acl/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l3fwd-power/Makefile b/examples/l3fwd-power/Makefile
index a106b0404..df7963895 100644
--- a/examples/l3fwd-power/Makefile
+++ b/examples/l3fwd-power/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/l3fwd-vf/Makefile b/examples/l3fwd-vf/Makefile
index cc93603e3..1c6ec41fe 100644
--- a/examples/l3fwd-vf/Makefile
+++ b/examples/l3fwd-vf/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/l3fwd/Makefile b/examples/l3fwd/Makefile
index 8c51c7b96..3d23f3ac4 100644
--- a/examples/l3fwd/Makefile
+++ b/examples/l3fwd/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/link_status_interrupt/Makefile b/examples/link_status_interrupt/Makefile
index d12e04782..fd7bb204d 100644
--- a/examples/link_status_interrupt/Makefile
+++ b/examples/link_status_interrupt/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/load_balancer/Makefile b/examples/load_balancer/Makefile
index d4b145ca1..807a2f99a 100644
--- a/examples/load_balancer/Makefile
+++ b/examples/load_balancer/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/packet_ordering/Makefile b/examples/packet_ordering/Makefile
index 474ec9571..4ef8fef26 100644
--- a/examples/packet_ordering/Makefile
+++ b/examples/packet_ordering/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/ptpclient/Makefile b/examples/ptpclient/Makefile
index f113c9d56..c94f64eb0 100644
--- a/examples/ptpclient/Makefile
+++ b/examples/ptpclient/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/qos_meter/Makefile b/examples/qos_meter/Makefile
index fbcda09b2..fab91a0ff 100644
--- a/examples/qos_meter/Makefile
+++ b/examples/qos_meter/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/qos_sched/Makefile b/examples/qos_sched/Makefile
index a25875900..e78b9fe56 100644
--- a/examples/qos_sched/Makefile
+++ b/examples/qos_sched/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/rxtx_callbacks/Makefile b/examples/rxtx_callbacks/Makefile
index b937d599b..143d8383a 100644
--- a/examples/rxtx_callbacks/Makefile
+++ b/examples/rxtx_callbacks/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/service_cores/Makefile b/examples/service_cores/Makefile
index 351fb7e1d..c30920076 100644
--- a/examples/service_cores/Makefile
+++ b/examples/service_cores/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/skeleton/Makefile b/examples/skeleton/Makefile
index 56713a524..e1de10874 100644
--- a/examples/skeleton/Makefile
+++ b/examples/skeleton/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/tep_termination/Makefile b/examples/tep_termination/Makefile
index f4b85e49b..474ce3f74 100644
--- a/examples/tep_termination/Makefile
+++ b/examples/tep_termination/Makefile
@@ -20,10 +20,15 @@ static: build/$(APP)-static
 
 LDFLAGS += -pthread
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -Wno-deprecated-declarations
 
diff --git a/examples/timer/Makefile b/examples/timer/Makefile
index 046348fd1..356094e72 100644
--- a/examples/timer/Makefile
+++ b/examples/timer/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/vhost/Makefile b/examples/vhost/Makefile
index 80607b79c..ee2b9d8d6 100644
--- a/examples/vhost/Makefile
+++ b/examples/vhost/Makefile
@@ -20,10 +20,15 @@ static: build/$(APP)-static
 
 LDFLAGS += -pthread
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 CFLAGS += -DALLOW_EXPERIMENTAL_API
 
diff --git a/examples/vhost_scsi/Makefile b/examples/vhost_scsi/Makefile
index 0a3450bae..61aa318fa 100644
--- a/examples/vhost_scsi/Makefile
+++ b/examples/vhost_scsi/Makefile
@@ -21,10 +21,15 @@ static: build/$(APP)-static
 CFLAGS += -D_FILE_OFFSET_BITS=64
 LDFLAGS += -pthread
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/vmdq/Makefile b/examples/vmdq/Makefile
index 6a389c776..27c618daf 100644
--- a/examples/vmdq/Makefile
+++ b/examples/vmdq/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
diff --git a/examples/vmdq_dcb/Makefile b/examples/vmdq_dcb/Makefile
index 113bce7d1..6f76c7fd1 100644
--- a/examples/vmdq_dcb/Makefile
+++ b/examples/vmdq_dcb/Makefile
@@ -18,10 +18,15 @@ shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)
-LDFLAGS_SHARED = $(shell pkg-config --libs libdpdk)
-LDFLAGS_STATIC = -Wl,-Bstatic $(shell pkg-config --static --libs libdpdk)
+PKGCONF=pkg-config
+ifneq ($(DPDK_PC_PREFIX),)
+	PKGCONF += --define-variable=prefix=$(DPDK_PC_PREFIX)
+endif
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) --static --libs libdpdk)
 
 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
 	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
-- 
2.20.1
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