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-rw-r--r--samples/bpf/Makefile4
1 files changed, 3 insertions, 1 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 4dc20be5fb96..a5783749ec15 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -3,6 +3,8 @@
BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src))
TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools
+pound := \#
+
# List of programs to build
tprogs-y := test_lru_dist
tprogs-y += sock_example
@@ -232,7 +234,7 @@ endif
# Don't evaluate probes and warnings if we need to run make recursively
ifneq ($(src),)
-HDR_PROBE := $(shell printf "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \
+HDR_PROBE := $(shell printf "$(pound)include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \
$(CC) $(TPROGS_CFLAGS) $(TPROGS_LDFLAGS) -x c - \
-o /dev/null 2>/dev/null && echo okay)