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-rw-r--r--tools/perf/builtin-timechart.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a827919c6263..775b99833e51 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -43,6 +43,10 @@
#include "util/data.h"
#include "util/debug.h"
+#ifdef LACKS_OPEN_MEMSTREAM_PROTOTYPE
+FILE *open_memstream(char **ptr, size_t *sizeloc);
+#endif
+
#define SUPPORT_OLD_POWER_EVENTS 1
#define PWR_EVENT_EXIT -1