https://bugzilla.gnome.org/show_bug.cgi?id=743508
#define G_CREDENTIALS_SOCKET_GET_CREDENTIALS_SUPPORTED 1
#define G_CREDENTIALS_SPOOFING_SUPPORTED 1
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__GNU__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__GNU__) || defined(__DragonFly__)
#define G_CREDENTIALS_SUPPORTED 1
#define G_CREDENTIALS_USE_FREEBSD_CMSGCRED 1
#define G_CREDENTIALS_NATIVE_TYPE G_CREDENTIALS_TYPE_FREEBSD_CMSGCRED