From: Pu Lehui Date: Thu, 5 Sep 2024 08:13:52 +0000 (+0000) Subject: selftests/bpf: Adapt OUTPUT appending logic to lower versions of Make X-Git-Tag: microblaze-v6.13~115^2~37^2~9 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=dc3a8804d790cc7dda442e5504a0c67435b356f4;p=linux-2.6-microblaze.git selftests/bpf: Adapt OUTPUT appending logic to lower versions of Make The $(let ...) function is only supported by GNU Make version 4.4 [0] and above, otherwise the following exception file or directory will be generated: tools/testing/selftests/bpfFEATURE-DUMP.selftests tools/testing/selftests/bpffeature/ Considering that the GNU Make version of most Linux distributions is lower than 4.4, let us adapt the corresponding logic to it. Link: https://lists.gnu.org/archive/html/info-gnu/2022-10/msg00008.html [0] Acked-by: Eduard Zingerman Signed-off-by: Pu Lehui Link: https://lore.kernel.org/r/20240905081401.1894789-2-pulehui@huaweicloud.com Signed-off-by: Alexei Starovoitov --- diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 7660d19b66c2..9905e3739dd0 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -187,8 +187,14 @@ FEATURE_TESTS := llvm FEATURE_DISPLAY := $(FEATURE_TESTS) # Makefile.feature expects OUTPUT to end with a slash +ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) $(let OUTPUT,$(OUTPUT)/,\ $(eval include ../../../build/Makefile.feature)) +else +OUTPUT := $(OUTPUT)/ +$(eval include ../../../build/Makefile.feature) +OUTPUT := $(patsubst %/,%,$(OUTPUT)) +endif endif ifeq ($(feature-llvm),1)