diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c
index dd85e98..5d6fc24 100644
--- a/audio/sdlaudio.c
+++ b/audio/sdlaudio.c
@@ -29,7 +29,7 @@
 #ifndef _WIN32
 #ifdef __sun__
 #define _POSIX_PTHREAD_SEMANTICS 1
-#elif defined(__OpenBSD__) || defined(__FreeBSD__)
+#elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
 #include <pthread.h>
 #endif
 #include <signal.h>
diff --git a/block-raw-posix.c b/block-raw-posix.c
index 85ca704..8695368 100644
--- a/block-raw-posix.c
+++ b/block-raw-posix.c
@@ -63,6 +63,11 @@
 #include <sys/dkio.h>
 #endif
 
+#ifdef __DragonFly__
+#include <sys/ioctl.h>
+#include <sys/diskslice.h>
+#endif
+
 //#define DEBUG_FLOPPY
 
 //#define DEBUG_BLOCK
@@ -762,6 +767,15 @@
     if (!fstat(fd, &sb) && (S_IFCHR & sb.st_mode)) {
 #ifdef DIOCGMEDIASIZE
 	if (ioctl(fd, DIOCGMEDIASIZE, (off_t *)&size))
+#elif defined(DIOCGPART)
+        {
+                struct partinfo pi;
+                if (ioctl(fd, DIOCGPART, &pi) == 0)
+                        size = pi.media_size;
+                else
+                        size = 0;
+        }
+        if (size == 0)
 #endif
 #ifdef CONFIG_COCOA
         size = LONG_LONG_MAX;
diff --git a/block.c b/block.c
index 81f36b9..669e021 100644
--- a/block.c
+++ b/block.c
@@ -35,8 +35,10 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#ifndef __DragonFly__
 #include <sys/disk.h>
 #endif
+#endif
 
 #define SECTOR_BITS 9
 #define SECTOR_SIZE (1 << SECTOR_BITS)
diff --git a/configure b/configure
index 3823ee4..a4e6f8d 100755
--- a/configure
+++ b/configure
@@ -229,6 +229,15 @@
     kqemu="yes"
 fi
 ;;
+DragonFly)
+bsd="yes"
+audio_drv_list="oss"
+audio_possible_drivers="oss sdl esd pa"
+if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
+    kqemu="yes"
+fi
+aio="no"
+;;
 NetBSD)
 bsd="yes"
 audio_drv_list="oss"
diff --git a/exec.c b/exec.c
index 9823af3..6a5f2fe 100644
--- a/exec.c
+++ b/exec.c
@@ -454,7 +454,7 @@
             exit(1);
         }
     }
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
     {
         int flags;
         void *addr = NULL;
diff --git a/net.c b/net.c
index 1efa810..bfd1bd4 100644
--- a/net.c
+++ b/net.c
@@ -54,7 +54,7 @@
 #include <sys/select.h>
 #ifdef _BSD
 #include <sys/stat.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
 #include <libutil.h>
 #else
 #include <util.h>
diff --git a/osdep.c b/osdep.c
index ff5f17a..c34dfd2 100644
--- a/osdep.c
+++ b/osdep.c
@@ -92,7 +92,7 @@
     void *ptr;
 
 /* no need (?) for a dummy file on OpenBSD/FreeBSD */
-#if defined(__OpenBSD__) || defined(__FreeBSD__)
+#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
     int map_anon = MAP_ANON;
 #else
     int map_anon = 0;
@@ -159,7 +159,7 @@
     }
     size = (size + 4095) & ~4095;
     ftruncate(phys_ram_fd, phys_ram_size + size);
-#endif /* !(__OpenBSD__ || __FreeBSD__) */
+#endif /* !(__OpenBSD__ || __FreeBSD__ || __DragonFly__) */
     ptr = mmap(NULL,
                size,
                PROT_WRITE | PROT_READ, map_anon | MAP_SHARED,
diff --git a/qemu-char.c b/qemu-char.c
index 26e8825..566a0ba 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -67,6 +67,10 @@
 #include <libutil.h>
 #include <dev/ppbus/ppi.h>
 #include <dev/ppbus/ppbconf.h>
+#elif defined(__DragonFly__)
+#include <libutil.h>
+#include <dev/misc/ppi/ppi.h>
+#include <bus/ppbus/ppbconf.h>
 #else
 #include <util.h>
 #endif
@@ -806,7 +810,7 @@
 #endif
 
 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
-    || defined(__NetBSD__) || defined(__OpenBSD__)
+    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
 
 typedef struct {
     int fd;
@@ -934,7 +938,7 @@
     PtyCharDriver *s;
     struct termios tty;
     int slave_fd, len;
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__DragonFly__)
     char pty_name[PATH_MAX];
 #define q_ptsname(x) pty_name
 #else
@@ -1280,7 +1284,7 @@
 }
 #endif /* __linux__ */
 
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__DragonFly__)
 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
 {
     int fd = (int)chr->opaque;
@@ -2153,13 +2157,13 @@
     if (strstart(filename, "/dev/parport", NULL)) {
         chr = qemu_chr_open_pp(filename);
     } else
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
     if (strstart(filename, "/dev/ppi", NULL)) {
         chr = qemu_chr_open_pp(filename);
     } else
 #endif
 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
-    || defined(__NetBSD__) || defined(__OpenBSD__)
+    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
     if (strstart(filename, "/dev/", NULL)) {
         chr = qemu_chr_open_tty(filename);
     } else
diff --git a/savevm.c b/savevm.c
index a25d365..8d0ecdc 100644
--- a/savevm.c
+++ b/savevm.c
@@ -54,7 +54,7 @@
 #include <sys/select.h>
 #ifdef _BSD
 #include <sys/stat.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
 #include <libutil.h>
 #else
 #include <util.h>
diff --git a/usb-bsd.c b/usb-bsd.c
index ddcce41..5becea5 100644
--- a/usb-bsd.c
+++ b/usb-bsd.c
@@ -34,7 +34,11 @@
 #undef USB_SPEED_LOW
 
 #include <sys/ioctl.h>
+#ifndef __DragonFly__
 #include <dev/usb/usb.h>
+#else
+#include <bus/usb/usb.h>
+#endif
 #include <signal.h>
 
 /* This value has maximum potential at 16.
@@ -68,7 +72,7 @@
     ep = UE_GET_ADDR(ep);
 
     if (dev->ep_fd[ep] < 0) {
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
         snprintf(buf, sizeof(buf) - 1, "%s.%d", dev->devpath, ep);
 #else
         snprintf(buf, sizeof(buf) - 1, "%s.%02d", dev->devpath, ep);
@@ -321,7 +325,7 @@
         return NULL;
     }
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
     snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]);
 #else
     snprintf(ctlpath, PATH_MAX, "/dev/%s.00", bus_info.udi_devnames[0]);
@@ -411,7 +415,7 @@
             if (strncmp(bus_info.udi_devnames[0], "ugen", 4) != 0)
                 continue;
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
             snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s", bus_info.udi_devnames[0]);
 #else
             snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s.00", bus_info.udi_devnames[0]);
diff --git a/vl.c b/vl.c
index 804c835..62a9194 100644
--- a/vl.c
+++ b/vl.c
@@ -55,7 +55,7 @@
 #include <sys/select.h>
 #ifdef _BSD
 #include <sys/stat.h>
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__DragonFly__)
 #include <libutil.h>
 #else
 #include <util.h>
@@ -759,7 +759,8 @@
 static void init_get_clock(void)
 {
     use_rt_clock = 0;
-#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000)
+#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
+    || defined(__DragonFly__)
     {
         struct timespec ts;
         if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
@@ -771,7 +772,8 @@
 
 static int64_t get_clock(void)
 {
-#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000)
+#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
+	|| defined(__DragonFly__)
     if (use_rt_clock) {
         struct timespec ts;
         clock_gettime(CLOCK_MONOTONIC, &ts);