1 files changed, 4 insertions, 0 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 896f27047ed6..619d11c47a91 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -37,6 +37,10 @@
 # define MADV_UNMERGEABLE       13
 #endif
 
+#ifndef EFD_SEMAPHORE
+# define EFD_SEMAPHORE          1
+#endif
+
 struct tp_field {
         int offset;
         union {