DragonFly is very similar to OpenBSD with a dash of NetBSD

libs/libedit/src/unvis.c

@@ -45,7 +45,7 @@ __RCSID("$NetBSD: unvis.c,v 1.28 2005/09/13 01:44:09 christos Exp $");
 #include <stdio.h>
 #include <vis.h>
 
-#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__)
+#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__)
 __weak_alias(strunvis,_strunvis)
 #endif
 

libs/libedit/src/vi.c

@@ -915,14 +915,14 @@ vi_comment_out(EditLine *el, int c)
  * NB: posix implies that we should enter insert mode, however
  * this is against historical precedent...
  */
-#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__)
+#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__)
 extern char *get_alias_text(const char *) __weak_reference(get_alias_text);
 #endif
 protected el_action_t
 /*ARGSUSED*/
 vi_alias(EditLine *el, int c)
 {
-#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__)
+#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__)
 	char alias_name[3];
 	char *alias_text;
 

libs/libedit/src/vis.c

@@ -88,7 +88,7 @@ __RCSID("$NetBSD: vis.c,v 1.35 2006/08/28 20:42:12 christos Exp $");
 #include <vis.h>
 #include <stdlib.h>
 
-#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__)
+#if defined(__weak_reference) && !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__)
 __weak_alias(strsvis,_strsvis)
 __weak_alias(strsvisx,_strsvisx)
 __weak_alias(strvis,_strvis)

libs/spandsp/src/alloc.c

@@ -41,7 +41,7 @@
 #define __ISO_C_VISIBLE 2011
 #endif
 #include <stdlib.h>
-#if defined(HAVE_MALLOC_H) && !defined(__OpenBSD__)
+#if defined(HAVE_MALLOC_H) && !defined(__OpenBSD__) && !defined(__DragonFly__)
 #include <malloc.h>
 #endif
 #include <inttypes.h>

src/mod/applications/mod_spandsp/mod_spandsp_modem.h

@@ -35,7 +35,7 @@
 #undef HAVE_STDLIB_H
 #include "switch_private.h"
 #endif
-#if  !defined(__OpenBSD__) && (defined(HAVE_OPENPTY) || defined(HAVE_DEV_PTMX) || defined(HAVE_POSIX_OPENPT) || WIN32)
+#if  !defined(__OpenBSD__) && !defined(__DragonFly__) && (defined(HAVE_OPENPTY) || defined(HAVE_DEV_PTMX) || defined(HAVE_POSIX_OPENPT) || WIN32)
 #define MODEM_SUPPORT 1
 #if !defined(HAVE_POSIX_OPENPT) && !defined(HAVE_DEV_PTMX) && !defined(WIN32)
 #define USE_OPENPTY 1