diff options
Diffstat (limited to 'tools/bpf/bpftool/Makefile')
| -rw-r--r-- | tools/bpf/bpftool/Makefile | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index d566bced135e..804ade95929f 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -30,7 +30,9 @@ LIBBPF = $(LIBBPF_PATH)libbpf.a LIBBPF_BOOTSTRAP_OUTPUT = $(BOOTSTRAP_OUTPUT)libbpf/ LIBBPF_BOOTSTRAP = $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a -BPFTOOL_VERSION ?= $(shell make -rR --no-print-directory -sC ../../.. kernelversion) +ifeq ($(BPFTOOL_VERSION),) +BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion) +endif $(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT): $(QUIET_MKDIR)mkdir -p $@ |