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-rwxr-xr-xinclude/asterisk/file.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asterisk/file.h b/include/asterisk/file.h
index 147a705d8..e52570183 100755
--- a/include/asterisk/file.h
+++ b/include/asterisk/file.h
@@ -23,6 +23,10 @@
#ifndef _ASTERISK_FILE_H
#define _ASTERISK_FILE_H
+#ifndef stdin
+#error You must include stdio.h before file.h!
+#endif /* !stdin */
+
#include "asterisk/channel.h"
#include "asterisk/frame.h"
#include <fcntl.h>