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-rw-r--r--hw/audiodev.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/audiodev.h b/hw/audiodev.h
index ed2790f..428274f 100644
--- a/hw/audiodev.h
+++ b/hw/audiodev.h
@@ -1,3 +1,6 @@
+#ifndef HW_AUDIODEV_H
+#define HW_AUDIODEV_H 1
+
/* es1370.c */
int es1370_init(PCIBus *bus);
@@ -18,3 +21,5 @@ int cs4231a_init(ISABus *bus);
/* intel-hda.c + hda-audio.c */
int intel_hda_and_codec_init(PCIBus *bus);
+
+#endif