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-rw-r--r--libao2/ao_oss.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libao2/ao_oss.c b/libao2/ao_oss.c
index d6e9598e55..be0c6655ce 100644
--- a/libao2/ao_oss.c
+++ b/libao2/ao_oss.c
@@ -148,8 +148,8 @@ static char *dsp=PATH_DEV_DSP;
static audio_buf_info zz;
static int audio_fd=-1;
-char *oss_mixer_device = PATH_DEV_MIXER;
-int oss_mixer_channel = SOUND_MIXER_PCM;
+static const char *oss_mixer_device = PATH_DEV_MIXER;
+static int oss_mixer_channel = SOUND_MIXER_PCM;
// to set/get/query special features/parameters
static int control(int cmd,void *arg){