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-rw-r--r--tools/bpf/Makefile6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile
index 5d1995fd369c..5535650800ab 100644
--- a/tools/bpf/Makefile
+++ b/tools/bpf/Makefile
@@ -16,7 +16,13 @@ CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/include/uapi -I$(srctree)/include
# isn't set and when invoked from selftests build, where srctree
# is set to ".". building_out_of_srctree is undefined for in srctree
# builds
+ifeq ($(srctree),)
+update_srctree := 1
+endif
ifndef building_out_of_srctree
+update_srctree := 1
+endif
+ifeq ($(update_srctree),1)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif