+ else if(!strcmp(vec[0], "coreaudio")) {
+#if HAVE_COREAUDIO_AUDIOHARDWARE_H
+ *valuep = BACKEND_COREAUDIO;
+#else
+ error(0, "%s:%d: Core Audio is not available on this platform",
+ cs->path, cs->line);
+ return -1;
+#endif
+ } else if(!strcmp(vec[0], "oss")) {
+#if HAVE_SYS_SOUNDCARD_H
+ *valuep = BACKEND_OSS;
+#else
+ error(0, "%s:%d: OSS is not available on this platform",
+ cs->path, cs->line);
+ return -1;
+#endif
+ } else {