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-rw-r--r--compat/tms470/math.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/compat/tms470/math.h b/compat/tms470/math.h
index 1104d744e7..ac8d3cdf54 100644
--- a/compat/tms470/math.h
+++ b/compat/tms470/math.h
@@ -1,3 +1,6 @@
+#ifndef LIBAV_COMPAT_TMS470_MATH_H
+#define LIBAV_COMPAT_TMS470_MATH_H
+
#include_next <math.h>
#undef INFINITY
@@ -5,3 +8,5 @@
#define INFINITY (*(const float*)((const unsigned []){ 0x7f800000 }))
#define NAN (*(const float*)((const unsigned []){ 0x7fc00000 }))
+
+#endif /* LIBAV_COMPAT_TMS470_MATH_H */