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-rw-r--r--tools/perf/util/expr.y4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
index dd504afd8f36..65d54a6f29ad 100644
--- a/tools/perf/util/expr.y
+++ b/tools/perf/util/expr.y
@@ -7,6 +7,8 @@
#include "util/debug.h"
#define IN_EXPR_Y 1
#include "expr.h"
+#include "expr-bison.h"
+int expr_lex(YYSTYPE * yylval_param , void *yyscanner);
%}
%define api.pure full
@@ -56,7 +58,7 @@
static void expr_error(double *final_val __maybe_unused,
struct expr_parse_ctx *ctx __maybe_unused,
bool compute_ids __maybe_unused,
- void *scanner,
+ void *scanner __maybe_unused,
const char *s)
{
pr_debug("%s\n", s);