--- bridges/bridge_softmix/include/bridge_softmix_internal.h	(Asterisk 15.3)
+++ bridges/bridge_softmix/include/bridge_softmix_internal.h	(working copy)
@@ -58 +58 @@
-#if defined(__Darwin__) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__CYGWIN__)
+#if defined(__Darwin__) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__CYGWIN__)