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-rw-r--r--extras/bpf/Makefile15
1 files changed, 8 insertions, 7 deletions
diff --git a/extras/bpf/Makefile b/extras/bpf/Makefile
index 77b06434237..9ad26eaacb1 100644
--- a/extras/bpf/Makefile
+++ b/extras/bpf/Makefile
@@ -1,13 +1,14 @@
-CC?=clang
+CC := $(shell which clang)
+
# where to find bpf includes?
-BPF_ROOT?=/usr/include
-#BPF_ROOT?=/opt/vpp/external/x86_64/include
+BPF_ROOT ?= /usr/include
+#BPF_ROOT ?= /opt/vpp/external/x86_64/include
-CFLAGS:=-O3 -g -Wextra -Wall -target bpf
+CFLAGS := -O3 -g -Wextra -Wall -target bpf
# Workaround for Ubuntu/Debian for asm/types.h
-CFLAGS+= -I/usr/include/x86_64-linux-gnu
-CFLAGS+= -I$(BPF_ROOT)
-#CFLAGS+= -DDEBUG
+CFLAGS += -I/usr/include/x86_64-linux-gnu
+CFLAGS += -I$(BPF_ROOT)
+#CFLAGS += -DDEBUG
all: af_xdp.bpf.o