Index: libdvdread/src/bswap.h
===================================================================
--- libdvdread/src/bswap.h	(revision 1226)
+++ libdvdread/src/bswap.h	(working copy)
@@ -73,7 +73,7 @@
  * functionality!
  */
 
-#elif defined(__FreeBSD__) || defined(__sun) || defined(__bsdi__) || defined(WIN32) || defined(__CYGWIN__) || defined(__BEOS__) || defined(__OS2__)
+#elif defined(__FreeBSD__) || defined(__sun) || defined(__bsdi__) || defined(WIN32) || defined(__CYGWIN__) || defined(__BEOS__) || defined(__HAIKU__) || defined(__OS2__)
 #define B2N_16(x)                             \
  x = ((((x) & 0xff00) >> 8) |                 \
       (((x) & 0x00ff) << 8))
Index: configure.ac
===================================================================
--- libdvdread/configure.ac	(revision 1226)
+++ libdvdread/configure.ac	(working copy)
@@ -148,6 +148,8 @@
   *os2*)
     LDFLAGS="-no-undefined -Zbin-files $LDFLAGS"
     ;;
+  *haiku*)
+    ;;
   *)
     AC_CHECK_LIB(c, dlopen,
                  DYNAMIC_LD_LIBS="",