$NetBSD: patch-ad,v 1.3 2025/05/27 19:15:12 vins Exp $

* Support openpty() on NetBSD. 
* Add DragonFly

--- my_pty.c.orig	2024-08-13 10:49:48.000000000 +0000
+++ my_pty.c
@@ -26,7 +26,7 @@
 #ifdef __APPLE__
 #include <util.h>
 #endif
-#ifdef __OpenBSD__
+#if defined(__OpenBSD__) || defined(__NetBSD__)
 #include <util.h>
 #endif
 #if defined(linux) || defined(__CYGWIN__) || defined(__GNU__) || defined(__GLIBC__)
@@ -78,7 +78,7 @@
 
 int get_pty_and_fork(int *fd_master, int *fd_slave)
 {
-#if defined(__FreeBSD__) || defined(linux) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__) || defined(__GLIBC__) || defined(__minix)
+#if defined(__FreeBSD__) || defined(linux) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__) || defined(__GLIBC__) || defined(__minix) || defined(__DragonFly__)
 
 	if (openpty(fd_master, fd_slave, NULL, NULL, NULL) == -1)
 	{