examples/l3fwd-graph: fix pkg-config usage

This example missed the fixes from commit 69b1bb49ed82
("examples: hide error for missing pkg-config path flag") and
commit 12a652a02b08 ("examples: fix build with old pkg-config").

Fixes: 08bd1a174461 ("examples/l3fwd-graph: add graph-based l3fwd skeleton")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>

diff --git a/examples/l3fwd-graph/Makefile b/examples/l3fwd-graph/Makefile
index 1e4f060..6e3d0bc 100644 (file)
--- a/examples/l3fwd-graph/Makefile
+++ b/examples/l3fwd-graph/Makefile
@@ -19,9 +19,9 @@ 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)
+PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk) -DALLOW_EXPERIMENTAL_API
 LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
 LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)