diff mbox series

[v2,1/2] devtools: fix example builds with older pkg-config

Message ID 20191115151700.64354-2-bruce.richardson@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series support older pkg-config |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-compilation success Compile Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS

Commit Message

Bruce Richardson Nov. 15, 2019, 3:16 p.m. UTC 
  Not all versions of pkg-config in distros have support for the
--define-prefix flag [1], causing errors when building examples manually or
with test-meson-builds.sh script [2].

For the former case, we need to remove the hard-coded use of the flag in
the Makefiles.

For the latter case, the flag is necessary for builds to succeed, so we
skip the tests when it's not present, passing it as part of the pkg-config
command if it is supported.

[1]
CentOS Linux release 7.7.1908 (Core)
pkg-config version 0.27.1

[2]
 ## Building cmdline
Unknown option --define-prefix
gmake: Entering directory
`...ild-x86-default/install-root/usr/local/share/dpdk/examples/cmdline'
rm -f build/cmdline build/cmdline-static build/cmdline-shared
test -d build && rmdir -p build || true
Unknown option --define-prefix
Unknown option --define-prefix
gcc -O3  main.c commands.c parse_obj_list.c -o build/cmdline-shared
main.c:14:28: fatal error: cmdline_rdline.h: No such file or directory

Fixes: ca9268529d2b ("examples: support relocated DPDK install")
Fixes: 7f80a2102bbb ("devtools: test pkg-config file")
Cc: stable@dpdk.org

Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 devtools/test-meson-builds.sh           | 12 ++++++++----
 examples/bbdev_app/Makefile             |  2 +-
 examples/bond/Makefile                  |  2 +-
 examples/cmdline/Makefile               |  2 +-
 examples/distributor/Makefile           |  2 +-
 examples/eventdev_pipeline/Makefile     |  2 +-
 examples/fips_validation/Makefile       |  2 +-
 examples/flow_classify/Makefile         |  2 +-
 examples/flow_filtering/Makefile        |  2 +-
 examples/helloworld/Makefile            |  2 +-
 examples/ioat/Makefile                  | 10 ++++++----
 examples/ip_fragmentation/Makefile      |  2 +-
 examples/ip_pipeline/Makefile           |  2 +-
 examples/ip_reassembly/Makefile         |  2 +-
 examples/ipsec-secgw/Makefile           |  2 +-
 examples/ipv4_multicast/Makefile        |  2 +-
 examples/kni/Makefile                   |  2 +-
 examples/l2fwd-cat/Makefile             |  2 +-
 examples/l2fwd-crypto/Makefile          |  2 +-
 examples/l2fwd-event/Makefile           |  2 +-
 examples/l2fwd-jobstats/Makefile        |  2 +-
 examples/l2fwd-keepalive/Makefile       |  2 +-
 examples/l2fwd/Makefile                 |  2 +-
 examples/l3fwd-acl/Makefile             |  2 +-
 examples/l3fwd-power/Makefile           |  2 +-
 examples/l3fwd/Makefile                 |  2 +-
 examples/link_status_interrupt/Makefile |  2 +-
 examples/ntb/Makefile                   | 10 ++++++----
 examples/packet_ordering/Makefile       |  2 +-
 examples/ptpclient/Makefile             |  2 +-
 examples/qos_meter/Makefile             |  2 +-
 examples/qos_sched/Makefile             |  2 +-
 examples/rxtx_callbacks/Makefile        |  2 +-
 examples/service_cores/Makefile         |  2 +-
 examples/skeleton/Makefile              |  2 +-
 examples/tep_termination/Makefile       |  2 +-
 examples/timer/Makefile                 |  2 +-
 examples/vdpa/Makefile                  |  2 +-
 examples/vhost/Makefile                 |  2 +-
 examples/vhost_blk/Makefile             | 10 ++++++----
 examples/vhost_crypto/Makefile          |  2 +-
 examples/vmdq/Makefile                  |  2 +-
 examples/vmdq_dcb/Makefile              |  2 +-
 43 files changed, 65 insertions(+), 55 deletions(-)
diff mbox series

Patch

diff --git a/devtools/test-meson-builds.sh b/devtools/test-meson-builds.sh
index 08e83eb5c..e3a5a5d51 100755
--- a/devtools/test-meson-builds.sh
+++ b/devtools/test-meson-builds.sh
@@ -133,7 +133,11 @@  load_env cc
 pc_file=$(find $DESTDIR -name libdpdk.pc)
 export PKG_CONFIG_PATH=$(dirname $pc_file):$PKG_CONFIG_PATH
 
-for example in cmdline helloworld l2fwd l3fwd skeleton timer; do
-	echo "## Building $example"
-	$MAKE -C $DESTDIR/usr/local/share/dpdk/examples/$example clean all
-done
+# if pkg-config defines the necessary flags, test building some examples
+if pkg-config --define-prefix libdpdk >/dev/null 2>&1; then
+	export PKGCONF="pkg-config --define-prefix"
+	for example in cmdline helloworld l2fwd l3fwd skeleton timer; do
+		echo "## Building $example"
+		$MAKE -C $DESTDIR/usr/local/share/dpdk/examples/$example clean all
+	done
+fi
diff --git a/examples/bbdev_app/Makefile b/examples/bbdev_app/Makefile
index 715c521a9..033f5aada 100644
--- a/examples/bbdev_app/Makefile
+++ b/examples/bbdev_app/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/bond/Makefile b/examples/bond/Makefile
index 0229b31bb..3f1ae1b6f 100644
--- a/examples/bond/Makefile
+++ b/examples/bond/Makefile
@@ -19,7 +19,7 @@  static: build/$(APP)-static
 
 LDFLAGS += -lrte_pmd_bond
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/cmdline/Makefile b/examples/cmdline/Makefile
index c1852080a..f362a2afb 100644
--- a/examples/cmdline/Makefile
+++ b/examples/cmdline/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/distributor/Makefile b/examples/distributor/Makefile
index bac8d5578..ac804da34 100644
--- a/examples/distributor/Makefile
+++ b/examples/distributor/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/eventdev_pipeline/Makefile b/examples/eventdev_pipeline/Makefile
index 205145853..9a6250b85 100644
--- a/examples/eventdev_pipeline/Makefile
+++ b/examples/eventdev_pipeline/Makefile
@@ -19,7 +19,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/fips_validation/Makefile b/examples/fips_validation/Makefile
index 9485daf7a..da5c8f6e7 100644
--- a/examples/fips_validation/Makefile
+++ b/examples/fips_validation/Makefile
@@ -26,7 +26,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/flow_classify/Makefile b/examples/flow_classify/Makefile
index 4c23e5c6d..0b41ac4eb 100644
--- a/examples/flow_classify/Makefile
+++ b/examples/flow_classify/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/flow_filtering/Makefile b/examples/flow_filtering/Makefile
index a63a75555..1d5ab739c 100644
--- a/examples/flow_filtering/Makefile
+++ b/examples/flow_filtering/Makefile
@@ -15,7 +15,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/helloworld/Makefile b/examples/helloworld/Makefile
index 403afa050..267f90b4e 100644
--- a/examples/helloworld/Makefile
+++ b/examples/helloworld/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ioat/Makefile b/examples/ioat/Makefile
index 2a4d1da2d..ad4c63e31 100644
--- a/examples/ioat/Makefile
+++ b/examples/ioat/Makefile
@@ -17,10 +17,12 @@  shared: build/$(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
+
+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) $(LDFLAGS_SHARED)
diff --git a/examples/ip_fragmentation/Makefile b/examples/ip_fragmentation/Makefile
index 6af25a02e..1d1396211 100644
--- a/examples/ip_fragmentation/Makefile
+++ b/examples/ip_fragmentation/Makefile
@@ -18,7 +18,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ip_pipeline/Makefile b/examples/ip_pipeline/Makefile
index cf10d7180..77d37cc40 100644
--- a/examples/ip_pipeline/Makefile
+++ b/examples/ip_pipeline/Makefile
@@ -30,7 +30,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ip_reassembly/Makefile b/examples/ip_reassembly/Makefile
index 0b1a904e0..3d7fac195 100644
--- a/examples/ip_reassembly/Makefile
+++ b/examples/ip_reassembly/Makefile
@@ -18,7 +18,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ipsec-secgw/Makefile b/examples/ipsec-secgw/Makefile
index 851123be5..1c2b944d6 100644
--- a/examples/ipsec-secgw/Makefile
+++ b/examples/ipsec-secgw/Makefile
@@ -28,7 +28,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ipv4_multicast/Makefile b/examples/ipv4_multicast/Makefile
index 5f8a67dd4..5f9d73881 100644
--- a/examples/ipv4_multicast/Makefile
+++ b/examples/ipv4_multicast/Makefile
@@ -18,7 +18,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/kni/Makefile b/examples/kni/Makefile
index 5dc8118e3..fbe0097cf 100644
--- a/examples/kni/Makefile
+++ b/examples/kni/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd-cat/Makefile b/examples/l2fwd-cat/Makefile
index c1960d6d3..86e56a1e7 100644
--- a/examples/l2fwd-cat/Makefile
+++ b/examples/l2fwd-cat/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd-crypto/Makefile b/examples/l2fwd-crypto/Makefile
index 29fd530b4..ecfbab1f5 100644
--- a/examples/l2fwd-crypto/Makefile
+++ b/examples/l2fwd-crypto/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd-event/Makefile b/examples/l2fwd-event/Makefile
index 6f4176882..04e6796a6 100644
--- a/examples/l2fwd-event/Makefile
+++ b/examples/l2fwd-event/Makefile
@@ -23,7 +23,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd-jobstats/Makefile b/examples/l2fwd-jobstats/Makefile
index 729a39e93..0882c2697 100644
--- a/examples/l2fwd-jobstats/Makefile
+++ b/examples/l2fwd-jobstats/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd-keepalive/Makefile b/examples/l2fwd-keepalive/Makefile
index 37de27a6f..68e467426 100644
--- a/examples/l2fwd-keepalive/Makefile
+++ b/examples/l2fwd-keepalive/Makefile
@@ -19,7 +19,7 @@  static: build/$(APP)-static
 
 LDFLAGS += -pthread -lrt
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l2fwd/Makefile b/examples/l2fwd/Makefile
index 9c506844e..97af55a50 100644
--- a/examples/l2fwd/Makefile
+++ b/examples/l2fwd/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l3fwd-acl/Makefile b/examples/l3fwd-acl/Makefile
index e2c989f71..7fcf1e7a6 100644
--- a/examples/l3fwd-acl/Makefile
+++ b/examples/l3fwd-acl/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l3fwd-power/Makefile b/examples/l3fwd-power/Makefile
index 98248f462..de5d15cb7 100644
--- a/examples/l3fwd-power/Makefile
+++ b/examples/l3fwd-power/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/l3fwd/Makefile b/examples/l3fwd/Makefile
index c55f5c288..042eae92b 100644
--- a/examples/l3fwd/Makefile
+++ b/examples/l3fwd/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/link_status_interrupt/Makefile b/examples/link_status_interrupt/Makefile
index 97e5a14a8..3d55aa1ac 100644
--- a/examples/link_status_interrupt/Makefile
+++ b/examples/link_status_interrupt/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ntb/Makefile b/examples/ntb/Makefile
index 5ddd9b95f..7927f44ac 100644
--- a/examples/ntb/Makefile
+++ b/examples/ntb/Makefile
@@ -18,13 +18,15 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
+PKGCONF ?= pkg-config
+
 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)
+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) $(LDFLAGS_SHARED)
diff --git a/examples/packet_ordering/Makefile b/examples/packet_ordering/Makefile
index 51acaf7eb..b04a39399 100644
--- a/examples/packet_ordering/Makefile
+++ b/examples/packet_ordering/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/ptpclient/Makefile b/examples/ptpclient/Makefile
index 89e2bacbd..0f8390b68 100644
--- a/examples/ptpclient/Makefile
+++ b/examples/ptpclient/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/qos_meter/Makefile b/examples/qos_meter/Makefile
index e5217cf7c..4a9b628b8 100644
--- a/examples/qos_meter/Makefile
+++ b/examples/qos_meter/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/qos_sched/Makefile b/examples/qos_sched/Makefile
index ce2d25371..5737ad652 100644
--- a/examples/qos_sched/Makefile
+++ b/examples/qos_sched/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/rxtx_callbacks/Makefile b/examples/rxtx_callbacks/Makefile
index edd5b52cd..0f126692a 100644
--- a/examples/rxtx_callbacks/Makefile
+++ b/examples/rxtx_callbacks/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/service_cores/Makefile b/examples/service_cores/Makefile
index abbb7aed2..6fecedc54 100644
--- a/examples/service_cores/Makefile
+++ b/examples/service_cores/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/skeleton/Makefile b/examples/skeleton/Makefile
index c5ac26029..fdc458c91 100644
--- a/examples/skeleton/Makefile
+++ b/examples/skeleton/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/tep_termination/Makefile b/examples/tep_termination/Makefile
index 31165bd92..57af4e7cc 100644
--- a/examples/tep_termination/Makefile
+++ b/examples/tep_termination/Makefile
@@ -19,7 +19,7 @@  static: build/$(APP)-static
 
 LDFLAGS += -pthread
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/timer/Makefile b/examples/timer/Makefile
index a86178355..21f05918c 100644
--- a/examples/timer/Makefile
+++ b/examples/timer/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/vdpa/Makefile b/examples/vdpa/Makefile
index 2ac991a4b..68d088f22 100644
--- a/examples/vdpa/Makefile
+++ b/examples/vdpa/Makefile
@@ -18,7 +18,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/vhost/Makefile b/examples/vhost/Makefile
index f84b7f017..fcb864d0e 100644
--- a/examples/vhost/Makefile
+++ b/examples/vhost/Makefile
@@ -19,7 +19,7 @@  static: build/$(APP)-static
 
 LDFLAGS += -pthread
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/vhost_blk/Makefile b/examples/vhost_blk/Makefile
index a10a90071..af2a3f87b 100644
--- a/examples/vhost_blk/Makefile
+++ b/examples/vhost_blk/Makefile
@@ -18,12 +18,14 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
+PKGCONF ?= pkg-config
+
 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)
+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_crypto/Makefile b/examples/vhost_crypto/Makefile
index a9e1c4d3a..43e2e3244 100644
--- a/examples/vhost_crypto/Makefile
+++ b/examples/vhost_crypto/Makefile
@@ -18,7 +18,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/vmdq/Makefile b/examples/vmdq/Makefile
index 1557ee86b..e0f1e4c40 100644
--- a/examples/vmdq/Makefile
+++ b/examples/vmdq/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
diff --git a/examples/vmdq_dcb/Makefile b/examples/vmdq_dcb/Makefile
index 391096cfb..def515872 100644
--- a/examples/vmdq_dcb/Makefile
+++ b/examples/vmdq_dcb/Makefile
@@ -17,7 +17,7 @@  shared: build/$(APP)-shared
 static: build/$(APP)-static
 	ln -sf $(APP)-static build/$(APP)
 
-PKGCONF=pkg-config --define-prefix
+PKGCONF ?= pkg-config
 
 PC_FILE := $(shell $(PKGCONF) --path libdpdk)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)