diff --git a/emulators/dosbox/Makefile b/emulators/dosbox/Makefile
index a079ed5b10e1..ba0a652c5384 100644
--- a/emulators/dosbox/Makefile
+++ b/emulators/dosbox/Makefile
@@ -6,8 +6,7 @@
 #
 
 PORTNAME=	dosbox
-PORTVERSION=	0.65
-PORTREVISION=	1
+PORTVERSION=	0.70
 CATEGORIES=	emulators
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	${PORTNAME}
@@ -17,6 +16,7 @@ COMMENT=	An emulator of a PC with DOS
 
 LIB_DEPENDS=	png.5:${PORTSDIR}/graphics/png
 
+USE_AUTOTOOLS=	autoconf:259 aclocal:19
 GNU_CONFIGURE=	yes
 USE_SDL=	sdl net
 
diff --git a/emulators/dosbox/distinfo b/emulators/dosbox/distinfo
index 5cf94dcb63ae..786cbeb49ea9 100644
--- a/emulators/dosbox/distinfo
+++ b/emulators/dosbox/distinfo
@@ -1,3 +1,3 @@
-MD5 (dosbox-0.65.tar.gz) = fef84c292c3aeae747368b9875c1575a
-SHA256 (dosbox-0.65.tar.gz) = 23fd001e2006f66ffdfe63adb6478ba85027f65b5078d6c69ad59e7f678d761f
-SIZE (dosbox-0.65.tar.gz) = 848989
+MD5 (dosbox-0.70.tar.gz) = ea0a936e88eb294038e67eeb0d7129c4
+SHA256 (dosbox-0.70.tar.gz) = 05fdfd561eee33de12d978795b7f12338327c6da1ce65971463b58f2e90b48e4
+SIZE (dosbox-0.70.tar.gz) = 934649
diff --git a/emulators/dosbox/files/patch-configure.in b/emulators/dosbox/files/patch-configure.in
new file mode 100644
index 000000000000..37b8d1ee0f12
--- /dev/null
+++ b/emulators/dosbox/files/patch-configure.in
@@ -0,0 +1,12 @@
+--- configure.in.orig
++++ configure.in
+@@ -335,6 +335,9 @@
+        AC_DEFINE(OS2, 1, [Compiling on OS/2 EMX])
+        AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial passthrough support (Win32, Posix and OS/2).])
+        ;;
++    *-*-freebsd*)
++       AC_DEFINE(FREEBSD, 1, [Compiling on FREEBSD])
++       AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial passthrough support (Win32, Posix and OS/2).])
+ esac
+ 
+ dnl Some stuff for the icon.
diff --git a/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.cpp b/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.cpp
new file mode 100644
index 000000000000..775827befe05
--- /dev/null
+++ b/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.cpp
@@ -0,0 +1,11 @@
+--- src/hardware/serialport/misc_util.cpp.orig
++++ src/hardware/serialport/misc_util.cpp
+@@ -6,7 +6,7 @@
+ // C++ SDLnet wrapper
+ 
+ // Socket inheritance
+-#if defined LINUX || defined OS2
++#if defined LINUX || defined OS2 || defined FREEBSD
+ #define CAPWORD (NETWRAPPER_TCP|NETWRAPPER_TCP_NATIVESOCKET)
+ #ifdef OS2
+ typedef int     socklen_t;
diff --git a/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.h b/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.h
new file mode 100644
index 000000000000..31178f9870cf
--- /dev/null
+++ b/emulators/dosbox/files/patch-src::hardware::serialport::misc_util.h
@@ -0,0 +1,11 @@
+--- src/hardware/serialport/misc_util.h.orig
++++ src/hardware/serialport/misc_util.h
+@@ -6,7 +6,7 @@
+ #include "SDL_net.h"
+ #include "support.h"
+ 
+-#if defined LINUX || defined OS2
++#if defined LINUX || defined OS2 || defined FREEBSD
+ #define NATIVESOCKETS
+ 
+ #elif defined WIN32