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-rw-r--r--src/flac/utils.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/flac/utils.c b/src/flac/utils.c
index b727feb0..766d7e41 100644
--- a/src/flac/utils.c
+++ b/src/flac/utils.c
@@ -31,6 +31,9 @@
#include "FLAC/metadata.h"
#include "share/compat.h"
#ifndef _WIN32
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE
+#endif
#include <wchar.h>
#ifdef HAVE_TERMIOS_H
# include <termios.h>