-void S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+{
+ return -1;
+}
+
+void S_StopChannel (unsigned int channel_ind)
+{
+}
+
+void S_PauseChannel (unsigned int channel_ind, qboolean toggle)
+{
+}
+
+void S_LoopChannel (unsigned int channel_ind, qboolean toggle)