YYDEBUG enables line numbers and other error helpers in the generated bpf-filter-bison.c. Conditionally enabled only for debug builds. Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx> --- tools/perf/util/bpf-filter.y | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/util/bpf-filter.y b/tools/perf/util/bpf-filter.y index 5dfa948fc986..0e4d6de3c2ad 100644 --- a/tools/perf/util/bpf-filter.y +++ b/tools/perf/util/bpf-filter.y @@ -3,6 +3,10 @@ %{ +#ifndef NDEBUG +#define YYDEBUG 1 +#endif + #include <stdio.h> #include <string.h> #include <linux/compiler.h> -- 2.42.0.283.g2d96d420d3-goog