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--- a/src/config.h.in
+++ b/src/config.h.in
@@ -8,6 +8,12 @@
 
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
+
+/* Set to 1 if the setReceiversPlaying function is found in libupnpp */
+#undef HAVE_SETRECEIVERSPLAYING_IN_LINN
+
+/* Set to 1 if the setSourceIndex function is found in libupnpp */
+#undef HAVE_SETSOURCEINDEX_IN_LINN
 
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H