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-rw-r--r--src/post/audio/volnorm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/post/audio/volnorm.c b/src/post/audio/volnorm.c
index 792618322..158705ef7 100644
--- a/src/post/audio/volnorm.c
+++ b/src/post/audio/volnorm.c
@@ -22,6 +22,10 @@
* & Pierre Lombard.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <stdio.h>
#include <math.h>