If flex is version 2.6.4, reduce the number of flex C warnings disabled. Earlier flex versions have all C warnings disabled. Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx> --- tools/perf/util/Build | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/Build b/tools/perf/util/Build index 96f4ea1d45c5..32239c4b0393 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -279,13 +279,9 @@ $(OUTPUT)util/bpf-filter-bison.c $(OUTPUT)util/bpf-filter-bison.h: util/bpf-filt $(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) $(BISON_FILE_PREFIX_MAP) \ -o $(OUTPUT)util/bpf-filter-bison.c -p perf_bpf_filter_ -FLEX_GE_26 := $(shell expr $(shell $(FLEX) --version | sed -e 's/flex \([0-9]\+\).\([0-9]\+\)/\1\2/g') \>\= 26) -ifeq ($(FLEX_GE_26),1) - flex_flags := -Wno-switch-enum -Wno-switch-default -Wno-unused-function -Wno-redundant-decls -Wno-sign-compare -Wno-unused-parameter -Wno-missing-prototypes -Wno-missing-declarations - CC_HASNT_MISLEADING_INDENTATION := $(shell echo "int main(void) { return 0 }" | $(CC) -Werror -Wno-misleading-indentation -o /dev/null -xc - 2>&1 | grep -q -- -Wno-misleading-indentation ; echo $$?) - ifeq ($(CC_HASNT_MISLEADING_INDENTATION), 1) - flex_flags += -Wno-misleading-indentation - endif +FLEX_GE_264 := $(shell expr $(shell $(FLEX) --version | sed -e 's/flex \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 264) +ifeq ($(FLEX_GE_264),1) + flex_flags := -Wno-redundant-decls -Wno-switch-default -Wno-unused-function else flex_flags := -w endif -- 2.41.0.487.g6d72f3e995-goog